Edge effect on density and diversity of bird community in Golestan National Park
Hossein
Varasteh Moradi
Department of Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
Hoda
Khoshzaher
Department of Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
Mehrdad
Boorchi
Department of Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
text
article
2015
per
This study focuses on the different edge types affecting bird density and diversity in Golestan National Park. Birds and environmental variables were detected within a 25 m radius of each of 73 sampling points. To determine the bird species density and their association with environmental variables, distance sampling method and canonical correspondence analysis was performed respectively. To determine the association of bird diversity indices with environmental variables, the canonical correspondence analysis were performed. Red breasted Flycatcher and Chaffinch, and Nuthatch had the highest density in rangeland and agriculture edges respectively; meanwhile, Chukar and Crested Lark, and Pheasant had the lowest density in river and road edges respectively. At the road edge, Song Thrush, Jay, Syrian Woodpecker, Treecreeper, Black Woodpecker, Coal Tit, Great Tit, and Blue Tit had the positive correlation with the number of trees with dbh 20-50 cm, the number of trees between 10 to 20 m in height, canopy cover, litter depth, and the number of trees with dbh more than 100 cm. Moreover, at the agriculture edge, Nuthatch, Long-tailed Tit, Lesser Spotted Woodpecker, Great Spotted Woodpecker, and Common Redstart showed positive correlation with stone cover, the number of trees with dbh 50-100 cm, and the number of trees with height of less than 10 m. The number of dominant species (N2), Shannon diversity index, and the number of species had the highest values at the road, agriculture, river, and rangeland edges respectively. In contrast, Camargo evenness index had the highest value at the rangeland, river, agriculture, and road edges respectively.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
1
10
http://www.aejournal.ir/article_8546_c098d37b00b8d42df80342c219b1211c.pdf
Genetic diversity of Caspian brown trout (Salmo trutta caspius Kessler, 1877) in the Cheshmeh Kileh and Kargan Rud Rivers using microsatellite markers
Saltanat
Najjar Lashgari
Department of Fisheries, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Sohrab
Rezvani Gilkolaei
Iranian Fisheries Research Organization (IFRO), P.O.Box: 14155-6116, Tehran, Iran
author
Abolghasem
Kamali
Department of Fisheries, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Mahdi
Soltani
Department of Fisheries, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
text
article
2015
per
Caspian brown trout (Salmo trutta caspius) is one of the nine subspecies of brown trout (Salmo trutta) in the world and is one of the economically important species and endangered in the Caspian Sea. In this study, the genetic diversity of the Caspian brown trout was investigated using microsatellite method. For this purpose, 225 specimens of adult Caspian brown trout were collected from Cheshmeh Killed and Kargan Rud rivers and genomic DNA was extracted using Ammonium Acetate method. The quality and quantity of the extracted DNA was assessed using a horizontal electrophoresis in 1% agarose gel and spectrophotometry methods. The Polymerase Chain Reaction (PCR) was performed using 16 pairs SSR primers and the amplified products were vertical electrophoresis using 6% polyacrylamide gel and were stained using silver nitrate method. DNA bands were scored using Photo- Capt software and produced five polymorphic loci. The mean observed and expected heterozygosity was calculated 0.47±0.09 and 0.61±0.10 respectively and more loci were out of Hardy- Weinberg equilibrium (P<0.001). Analysis of molecular variance (AMOVA) showed significant differences in genetic diversity between and within populations (P<0.01). So there is more than one population in studied rivers that should be considered in restructuring reserves.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
11
18
http://www.aejournal.ir/article_8547_f0f638fffae22acb3604c5066c0cc62d.pdf
Effects of Cyamopsis tetragonoloba crumpled consumption in growth and survival indexes of fry Onchorhynchus mykiss
Vahid
Yaddolahie
Department of Fisheries, Islamic Azad University Ahvaz Science and Research branch, P.O. Box:163, Ahvaz, Iran
author
Mehdi
Shamsaie Mehrgan
Department of fisheries faculty of natural resource and agriculture, Islamic Azad University, Tehran Science and Research branch, P.O. Box:775-14515, Tehran, Iran
author
Mehran
Javaheri Baboli
Department of Fisheries, Islamic Azad University, Ahvaz branch, P.O. Box:163, Ahvaz, Iran
author
Hodeis
Abbasi Ghadikolaei
Young researchers and elites club, Science and Research branch, Islamic Azad University, P.O. Box:775-14515, Tehran, Iran
author
Ali
Afsar
Department of plants reforms, faculty of natural resource and agriculture, Islamic Azad University, Varamin-Pishva branch, Varamin-Pishva, Iran
author
text
article
2015
per
This study investigated by the aim of 60 percent guar crumpled replacement by soy from 345 number of fry Onchorhynchus mykiss Growth and survival indexes by mean weight (82±2 gr) in 5 doze and three replicated (0,25,50,75 and100%) equal to(0,3.88,7.8,11.63 and 15.5% guar crumpled as an protein equivalent within same amount of energy and proteins of diet. Biometries have done from five samples of each treatment once fifteen days till 60 days of study. At The End of test by meager and calculated of final and, increasing weight, amount of diet as fed , food concentration ratio(FCR),special growth rate(SGR) ,protein efficiency ratio (PER) , condition of fattening(CF) and survival rate(SR) results showed; there is significant difference for all growth index except initial weight by replacing guar crumpled in the diet (P>0.05). There is high significant difference in amount of diet as fed, weight increasing and survival rates between treatments brightly (P<0.01). So on, to achieve the useful providing efficiency by the suitable process guar crumpled had less amount of anti feeding effects and could be replaced by soy crumpled as a herbal protein resource.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
19
27
http://www.aejournal.ir/article_8549_acdde8a3c56f350d5178e742fa7d544d.pdf
Habitat preferences by Black-bellied Sandgrouse (Pterocles orientalis) in landscape scale in Shir-Ahmad Wildlife Refuge, Sabzevar
Aazam
Elhami Rad
Department of Environmental Sciences, Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, P.O. Box:397, Sabzevar, Iran
author
Hamid Reza
Rezaei
Department of Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
Hossein
Varasteh Moradi
Department of Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
Mohammad
Kaboli
Department of Environmental Sciences, Faculty of Natural Resources, University of Tehran, P.O.Box: 4111, Karaj, Iran
author
text
article
2015
per
Wildlife habitat selection has been increasingly run into difficulty because of habitats destruction resulted from land changes. Because of easy accessibility, the open habitats have been widely influenced by land changes. The steppe land birds are listed as one of the most endangered species groups in the world. The Black-bellied Sandgrouse (Pterocles orientalis) is one of these species that while suffering from intensive habitat destruction and hunting, there is no enough information about its population ecology within its distribution area. In this survey, Black-bellied Sandgrouse preferred habitats has been studied using logistic regression, with an emphasis on the differences in role of biotopes in habitat selection and importance of habitat change in Shirahmad wildlife refuge.The results highlighted that habitat selection and habitat needs of Sandgrouse is often associated with open farmlands in landscape scale (p< 0.05). This bird avoids from forest and woodland habitats and prefers dry cereal fields and fallows, stubbles and ploughs. Therefore keep and support of traditional agricultural systems and creating fallow regular and balance control of intensive and mechanized cultivation creating in the region that could be have important effect on support the bird generation, is recommended.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
29
38
http://www.aejournal.ir/article_8550_960c83a9cdf05077213273ac4e81a9a2.pdf
Bioaccumulation of Vanadium in Strongylura strongylura in the oil field region of bahragan (Persian Gulf)
Tahereh
Ebrahimi Yazdan Abaad
Department of Marine Biology, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Mojgan
Emtiazju
Department of marine biology, Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch, P.O.Box: 1987974635, Tehran, Iran
author
Pargol
Ghavam Mostafavi
Department of Marine Biology, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Zahra
Sahebi
Department of Marine Biology, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
text
article
2015
per
This study was carried out to determinate the acceptable intake without harmful effects due to vanadium in muscle tissue of Strongylura strongylura (Chingo) as the most consumed fish from Bahragan of Persian Gulf and to compare it with global health standards and it`s effects on human. In this research, in winter 1389, 18 samples of Chingo fish in 3 longitudinal group (small, medium and large) from Bahragan area, fishing platform Bahragansar was randomly hunted. Prior measuring of vanadium concentrations in muscle tissue by Atomic absorbtion (Model: 220z, varian-Austrailia) was measured. According to results, the mean concentration of Vanadium in muscle tissue was 2.5091± 1.14201 µg/g w.d. According to the World Health Organization (WHO) intake of Strongylura strongylura (carnivorous species) due to high accumulation of Vanadium, it`s consume is highly limited specially in long length groups. Considering permissible limit of Vanadium determined by World Health Organization (WHO), for an adult person weighted 60 kg, the maximum permissible consumption limit of Strongylura strongylura in big longitudinal group is tantamount to 6.354g.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
39
46
http://www.aejournal.ir/article_8552_02628318eb5ab27f4eb00a16337cef32.pdf
Effect of different levels of ethanol extract of Corchorus olitorius on reproductive and growth factors in sword tail (Xiphophorus helleri)
Abbasali
Hajibeglou
Department of Fisheries Sciences, Gorgan University of Agricultural and Natural Resources, Iran
author
Mohammad
Sudagar
Department of Fisheries Sciences, Gorgan University of Agricultural and Natural Resources, Iran.
author
Seyed Abbas
Hoseini
Department of Fisheries Sciences, Gorgan University of Agricultural and Natural Resources, Iran
author
Seyed Mehdi
Jafari
Department of Food Industry, Gorgan University of Agricultural and Natural Resources, Iran.
author
text
article
2015
per
In the present study the effect of different levels of ethanol extract of Corchorus olitorius on reproductive performance and some growth factors in Xiphophorus helleri were studied. Ethanol extract (70%) of plant extracted with microwave and concentrated using the rotary-evaporator. The extract was then powderd using the freez-dryer. The prepared extract was incorporated with the artificial feeds at concentration of 0.0 (A), 200 (B), 400 (C) and 800 (D) mg kg-1 of dry diet and fed to fish for a period of 14 weeks. The results showed that Gonadosomatic index, the weight of female broodstock, length of female broodstock and fry survival was significantly higher in group 3 as compared to other groups (P<0.05). Relative fecundity was lowest in group A. The results of the relative fecundity showed that there was no significant difference (P>0.05) between group A and B and also between C and D. The length and weight of fry in groups 3 and 4 were significantly higher than other groups (P<0.05). The gonadosomatic index was found lower in group 1 and 2 as compared to other groups. Moreover, no significant differences in the sex ratio were observed within the experimental groups (P>0.05).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
47
56
http://www.aejournal.ir/article_8553_89ee1ddd5bdec64f2a87d35e13968287.pdf
Effects of hydro-alcoholic (Vitex agnus castus) leaf extract on the serum testosterone in the male rats
Mostafa
Bahrebar
Biology-Animal Physiology, Islamic Azad University, Dehdasht Branch, Dehdasht, Iran.
author
Hedayat
Yavar Moghadam
Marine Biology, Islamic Azad University, Dehdasht Branch, Dehdasht, Iran
author
Ahmad
Bahrebar
Environmental Science, Islamic Azad University, Dehdasht Branch, Dehdasht, Iran
author
Ali
Bahrebar
Plant Pathology-Nematology, Islamic Azad University, Dehdasht Branch, Dehdasht, Iran
author
text
article
2015
per
Nowadays, to get rid of the side effects of chemical drugs, the use of medicinal plants is taken into consideration. Therefore, the present study examined the effects of the hydroalcoholic leaf extract of Vitex (Vitex agnus-castus) on the serum testosterone levels in male rats. For this purpose, 45 adult male Charles river strain rats with weight approximately about 210 to 250 g were divided to 3 groups including first experimental group (20 mg/day extract), second experimental group (40 mg/day extract), and sham group (2 ml distilled water/day). Extraction was performed using maceration method. For one month, dried leaf extraction, with two doses were dissolved in 2 ml of distilled water daily then given to groups of experimental rats by oral syringe with needle-gag doses and distilled water alone was given to sham group. At the end, the animal was anaesthetized by inhalation of ether and the blood was taken off from its heart. Serum concentration of testosterone was measured by ELISA. Data were analyzed using One Way ANOVA, Tukey test and SPSS Software. Results of this study were showed that serum levels of testosterone in the male rats in all three groups (sham , experimental 1 and experimental 2) in comparison to each other, had a significant difference (P<0.05). Tukey test analysis was showed that mean serum concentration of testosterone increased significantly in both experimental groups (1 and 2) in compared with sham group and decreased in the experimental group 2 (high dose) in compared with experimental group 1 (low dose) (P <0.05). By findings of this study concluded that sex hormone-like compounds present in the extract of Vitex (V. agnus-castus) were influenced on the hypothalamic - pituitary -gonad axis through dose dependent molecular or feedback mechanisms which a significant changes were caused in the serum levels of testosterone in the male rats.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
57
64
http://www.aejournal.ir/article_8555_ce023188e5435e4a30068e8fbee8e2f9.pdf
Effect of sub lethal doses of CdCl2 on some blood parameters of stress in Juveniles of Acipenser persicus
Roghieh
Safari
Department of Fisheries, Faculty of Fishery and Environmental Science, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
Ali
shabani
Department of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
Mohammad Reza
Imanpour
Department of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
text
article
2015
per
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
65
76
http://www.aejournal.ir/article_8558_28a04ac710724f7f8669d61beabe4ed4.pdf
Empirical feed formulations for the ornamental fish Green terror(Andinocara rivulatus)(Gunther, 1860) by evaluation the optimum level of protein
Nasim Sadat
Hosseini madani
1Faculty of Marine Science and Technology, North Tehran Branch , Islamic Azad University
author
Narges
Mooraki
Faculty of Marine Science and Technology, North Tehran Branch, Islamic Azad University
author
Amir Ali
Anvar
Department of Hygien, Science and Research Branch, Islamic Azad University
author
Hamed
Manuchehri
Department of Fisheries Science, Babol Branch, Islamic Azad University
author
text
article
2015
per
This research was conducted to define the optimum dietary protein level on the growth performance and nutritional parameters Green terror (Andinocara rivulatus). In this regard, 90 Green terror fish with average weight and length of 3.93±0.20 (g) and 4.73±0.26 (Cm) were used. The hypotheses were studied with three tests isocaloric ration containing 35, 40 and 45% protein each with three replications formulated with software Win feed 2.8. Along the period, the fish were biometry every 21 days to compare their growth rates at each treatment, and after 84 days Results showed that the fish fed with 45% protein level had better growth performance, PER, FCR, condition factor and survival rate specification, and they showed statistically significant differences with the other protein treatments (P<0.05).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
77
84
http://www.aejournal.ir/article_8559_addb57b5f321143a6021b5a2eb52bb9a.pdf
Role of ovarian ghrelin and its receptor in polycystic ovary syndrome pathogenesis
Masoumeh
Motamedi Joibari
Department of animal biology, faculty of Bio-science, University of Shahid Beheshti, Tehran,Iran
author
Homayoun
Khazali
Department of animal biology, faculty of Bio-science, University of Shahid Beheshti, Tehran,Iran
author
text
article
2015
per
Polycystic ovary syndrome (PCOs) is an endocrine disease that is related to obesity and major metabolic syndromes. Ghrelin is a neuropeptide that plays a key role in metabolism. In this study, we compared the expression of ghrelin and GHS-R mRNA by Quantitative Real-time PCR method in PCOs induced by intramuscular injection of Estradiol valerat (EV) rats versus normal rats in order to determine the role of ghrelin in pathogenesis of PCOs. 48 intake female wistar rats were divided in 2 groups. In group 1, rats received an i.m. injection of 0.4 mg EV in 2 ml oil, 60 days before study day to induce PCOs. Rats in group 2 were remained intact. In study day, rats in each group divided (proestrous, estrous, diestrous1 and diestrous2) by vaginal smear test. Ovaries were isolated then Ghrelin, and ghrelin receptor expressions were assayed by Quantitative Real Time PCR. ghrelin mRNA expression in PCOs rats was significantly lower than normal rats in distrours 1 and 2 but was significantly increased in proestrous and estrus versus normal rats. Also there is no cyclic pattern of Ghrelin expression in rats with PCOs. There is no detectable change in GHS-R1a in normal and PCOs rats.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
85
91
http://www.aejournal.ir/article_8562_c4d8f1613f17678eaad7d8647f2cc797.pdf
Effect of feeding with HSP stimulated in yeast on growth, survival and tolerance against environmental stress on two species of A. franciscana and A. urmiana
Godarz
Jafari
biology department, faculty of science, Urmia University, Urmia, Iran
author
Ramin
Manaffar
Artemia and Aquatics Research institute, Urmia University, Urmia, Iran
author
Samad
Zare
Department of biology, faculty of science, Urmia University, Urmia, Iran
author
text
article
2015
per
Biotechnological enhancing of growth, survival and tolerance of aquatic animals against to environmental stress, especially at larval stage of animals, is one of the important research topics. Stimulation of heat shock proteins is one the alternatives which can be exchanged with antibiotic and vaccines consumption. The present research aimed to study the effect of feeding of Artemia with HSP stimulated in unicellular yeast against environmental stresses. The study was conducted with stimulating of HSP with high salinity and temperature stresses. After ensuring of up-regulation the HSP in the yeast by SDS-Page methods, both species of Artemia were fed by the yeast and unicellular algae Dunaliella tertiolecta. 20 days culture period using this food revealed the positive effect of HSP on growth and stress tolerance of Artemia at environmental sever stresses of 250 g/l and 34°C (p<0.05).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
93
101
http://www.aejournal.ir/article_8563_40c5495292c01314d2e804bf3c1eeaaa.pdf
Bioaccumulation of mercury in aquatic and terrestrial birds in Isfahan province
Zahra
Hosseinpour-Mohamadabadi
Department of Natural Resources, Isfahan University of Technology, Postal Code. 84156-83111
author
Mansoureh
Malekian
Department of Natural Resources, Isfahan University of Technology, Postal Code. 84156-83111
author
Noorollah
Mirghaffari
Department of Natural Resources, Isfahan University of Technology, Postal Code. 84156-83111
author
text
article
2015
per
Mercury is a toxic heavy metal and is stable in the environment which can enter the living organisms through various ways. Bioaccumulation of mercury in birds has several impacts including nephron toxicity, kidney lesions and can lead to bird death. In the current studybioaccumulation of mercury was investigated in kidney, liver and tail feathers of 40 birds collected at three sites in Isfahan province belonging to three bird orders: Charadriiformes, Passeriformes and Columbiformes. Mercury level in tail feather, liver and kidney of aquatic birds averaged at about 4290, 3056 and 2704 ppb respectively and significantly (p < 0.05) higher than the mercury amount in the same organs ( 770, 816 and 519 ppb) of terrestrial species. In aquatic birds, tail feather with the average amount of 4290 ppb and in non aquatic birds, liver with the average of 816.64 ppb showed the highest amount of mercury. Charadriiformes had significantly (p = 0.0001) higher amount of mercury in their organs compared to the other two orders. Among the birds' families, Sternidae and Laridae showed significantly higher amount of mercury in their organs. The results can be an indicative of mercury presence in the Zayandehroud River, therefore it is necessary to monitor and manage heavy metals in the river.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
103
111
http://www.aejournal.ir/article_8564_85cb6ce9326eb1b7ea34219de4ae29f7.pdf
Effect of different levels of red pepper (Caspicum annum) powder on growth factors and survival rate of Zebra fish (Danio rerio)
Ahmad
Nosrati Movafagh
Department of Fishery, Faculty of Animal Sciences and Fisheries, Sari Agricultural Sciences and Natural Resources University, P.O.Box: 578, Sari, Iran
author
Sekineh
Yeganeh
Department of Fishery, Faculty of Animal Sciences and Fisheries, Sari Agricultural Sciences and Natural Resources University, P.O.Box: 578, Sari, Iran
author
Somayeh
Soltanzadeh
Department of Fishery, Faculty of Animal Sciences and Fisheries, Sari Agricultural Sciences and Natural Resources University, P.O.Box: 578, Sari, Iran
author
Ali
Razgardani Sharahi
Department of Fishery, Faculty of Animal Sciences and Fisheries, Sari Agricultural Sciences and Natural Resources University, P.O.Box: 578, Sari, Iran
author
text
article
2015
per
This study was conducted to investigate the effect of different levels of Red Pepper (Caspicum annum) in the diet of Zebrafish (Danio rerio) on the growth performance and survival. 225 zebra fish (average initial weight 0.02 ± 0.005 g) were randomly divided in 15 aquarium (15L) and triplicate groups. Practical-type diets containing 0(control diet), 2.5, 5, 10 and 15% red pepper were fed to zebra fish for 56 days. At the end of the experiment was evaluated the growth parameters such as weight gain (WG), daily growth rate (DGR), specific growth rate (SGR), percentage body weight gain (% BWG), feed conversion ratio (FCR), condition factor (CF) and survival. Result was showed no significant difference among all treatments on the growth parameters and survival of zebra fish (P>0.05), although the highest contents of final weight and growth performance were observed in fish fed 5% red pepper (P>0.05).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
113
119
http://www.aejournal.ir/article_9330_d016aeb61343fac7b6e61ecc2f63d84c.pdf
Population dynamics of Spirlin (Alburnoides sp.) (Pisces: Cyprinidae) at the Up and Down stream of Shahid Rajaii dam of Tajan River
Fahime
Azizi
Department of Fisheries, Faculty of Natural Resources, University of Guilan, P.O. Box: 1144, Sowme'eh Sara, Iran
author
Majidreza
Khoshkholgh
Department of Fisheries, Faculty of Natural Resources, University of Guilan, P.O. Box: 1144, Sowme'eh Sara, Iran
author
Hossein
Rahmani
Department of Fisheries, Faculty of Animal sciences and Fisheries, University of Agriculture sciences and Natural Resources of Sari, P.O. Box: 578, Sari, Iran
author
Masoud
Sattari
Department of Fisheries, Faculty of Natural Resources, University of Guilan, P.O. Box: 1144, Sowme'eh Sara, Iran
author
Hossein
Anvarifar
Golestan University of Applied Science and Technology, Gorgan, Iran
author
text
article
2015
per
This study was designed to evaluate population dynamic in the Tajan river and investigation Shahid-Rajaei dam effects upon Alburnoides sp. . A total 621 fish specimens during 9 month were collected by electeroshocker set that 508 individual related to up stream station and 113 individual related to down stream station. The mean fork length and weight of this species in upstream was 49.11± 11.95 cm, 3.29 ±2.69 gr and in downstream was 52.94± 11.93 cm, 3. 92 ±2.96 gr, respectively. Univariate analysis (One-Way ANOVA) of length between two stations showed significant differences while weight and condition factor only in male showed significant differences (P≤0.05). The age of the female samples in upstream of the dam in 4 class ranged from 0+ to 3+ years while other (male in upstream, male and female in downstream) samples in 3 class ranged from 0+ to 2+ years. Sex rate of male: female in up- and down stream were 57.9:42.1 and 61.3:38.7, respectively that shown female were dominant in two stations. We observed an isometric growth pattern in males caught in downstream and positive allometric in the rest of fishes andValue of condition factor in both stations were above of 2.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
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4
no.
2015
121
134
http://www.aejournal.ir/article_9331_d16fa7c4054c4f2e99b44adb5f30ded8.pdf
Modeling the Habitat suitability of Ovis orientalis, the most important prey of cheetah (Acinonyx jubatus venaticus) Using Maximum Entropy method In Dareh Anjir Wildlife Refuge
Maryam
Morovati
Department of the Environment, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Mahmoud
Karami
Department of Environment, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Mohammad
Kaboli
Department of Environmental Sciences, Faculty of Natural Resources, University of Tehran, P.O.Box: 4111 Karaj, Iran
author
Zahra
Rousta
Department of Environment, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Mohammad Javade
Shorakaei
Department of Environment Office, Yazd, Iran
author
text
article
2015
per
* Corresponding Author’s email: maryam_morovati147@yahoo.com Ovis orientalis is a species from the Artiodactyla order and the Bovidae family. The subspecies of Ovis orientalis are classified as Vulnerable (VU) on the IUCN Red List. Dare Anjir wildlife refuge is the best and safest habitats of this species in the center of Iran. The present study is done with the aim of determining the effective factors in the presence of Ovis orientalis using MAXENT during 2012 to 2013 for seasons winter (cold period), spring (lambing), summer (hot and dry period) and autumn (mating period). Environmental factors used in model for three seasons are elevation, Slope, aspect, distance to water resources, distance to plant communities, distance to roads (soily and asphalted) and distance to mines. Results (with used MAXENT Software) show that the most important factor in the presence of Ovis orientalis as one of the most important food resources for Acinonyx jubatus (Asiatic Cheetah) (Critically Endangered) in the study area, in winter, spring, summer and autumn is slope. According to the prediction (with MAXENT Software) , north, center and south east areas of Dare Anjir wildlife refuge which are the most suitable habitat for Acinonyx jubatus (Asiatic Cheetah) and its dependent predators for three seasons have the most probability of presence of ovis. The result of the present study could be used in performing conservation and management for increasing suitable habitats in Yazd province.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
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4
no.
2015
135
149
http://www.aejournal.ir/article_9332_c2d78a0d5e8878180891d614604bf16b.pdf
Study of Morphology and Density variation of Aequoreidae and Dipleurosomatidae (Cnidaria: Hydromedusae: Conica) in Bahrakan Coasts (North Western Persian Gulf)
Tahmineh
Soltani
Department of Marine Biology, Faculty of Marine Science, Khorramshahr Marine Science and Technology University, P.O.Box: 669, Khorramshahr, Iran
author
Ahmad
Savari
Department of Marine Biology, Faculty of Marine Science, Khorramshahr Marine Science and Technology University, P.O.Box: 669, Khorramshahr, Iran
author
Nasrin
Sakhaee
Department of Marine Biology, Faculty of Marine Science, Khorramshahr Marine Science and Technology University, P.O.Box: 669, Khorramshahr , Iran
author
Babak
Doostshenas
Department of Marine Biology, Faculty of Marine Science, Khorramshahr Marine Science and Technology University, P.O.Box: 669, Khorramshahr, Iran
author
Abdolmajid
Dowraghi
Department of Marine Biology, Faculty of Marine Science, Khorramshahr Marine Science and Technology University, P.O.Box: 669, Khorramshahr, Iran
author
text
article
2015
per
This study was done on Hydromedusae in Bahrakan coasts due to identification and calculated of Hydromedusae density. Zooplankton samples collected by plankton net (300μm) from six stations in July, August, October of 2010 and December, February, April of 2011. Environmental parameters such as salinity, pH, temperature and dissolved oxygen were measured. In this study 6 species were identified. Aequorea forskalea, Aequorea sp., Dipleurosoma sp.1, Dipleurosoma sp.2 and Cuvieria sp. are the first report in the Iranian waters of the Persian Gulf. The medusae density was the highest in July (60.97 ± 2.56 N/10m3) and lowest in August (2.01 ± 0.76 N/10m3). The result of Correlation showed that the distribution of medusaes has more correlated with temperature (P<0.01).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
151
159
http://www.aejournal.ir/article_9333_ee077fd6ae1c2a05704217a381c6892b.pdf
Meat and skin color changes in Rainbow trout (Onchorhyncus mykiss) by feeding safflower (Carthamus tinctorius)
Seyed Alireza
Mirkarimi
Department of Animal Science, Faculty of Agriculture, Varamin Pishva branch, Islamic Azad University, Varamin, Iran
author
Siamak
Yousefi Siahkalroodi
Department of Biology, Faculty of Biological Sciences , Varamin Pishva branch, Islamic Azad University, Pishva, Iran
author
Farhad
Foroudi
Department of Animal Science, Faculty of Agriculture, Varamin Pishva branch, Islamic Azad University, Varamin, Iran
author
text
article
2015
per
This study aimed to evaluate the effects of safflower on skin color and rainbow trout carcasses were implemented. For this purpose was researched a total of 240 fishes ranged in weight from 230±10 gr as a completely randomized design with 4 treatments, 3 replicates and 20 pieces per replicate for 45 days in Khojier station research on June to August 2013 .Diets were included a control group, five, ten and fifteen percent of safflower. To perform for colorimetric tests of rainbow trout skin and meat 2 fishes at day 45 randomly caught and a piece of the meat with skin was removed and after 24 hours of freezing, L*(brightness), a*(redness) and b*(yellowness) parameters were evaluated by Minolta CR-400 colorimetric device. In the Colorimetric Results showed that between dorsal muscle parameters L *, a * and b * treatments on compared to control were non-significant difference) P>0/05). The skin colorimetric showed brightness indicator a significant difference in 10% of safflower treatment compared with other treatments (P≤0/05). In conjunction with redness and yellowness indices, treated with 15% safflower showed non-significant increase and decrease, respectively, compared to the control group (P>0/05). This experiment showed that the use of different levels of safflower can be effective in changing the skin color of the rainbow trout.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
161
166
http://www.aejournal.ir/article_9334_aca8c89aedaa454eb886a2465d775941.pdf
Survey of motivations and awareness of visitors to birds in Mashhad city parks
Hayedeh
Tabasian
Young Researchers Club, Science and Research Branch, Islamic Azad University, P.O.Box: 163-61555, Ahwaz, Iran
author
Behrouz
Behrouzirad
Department of Environment, Science and Research Branch, Islamic Azad University, P.O.Box: 163-61555, Ahwaz, Iran
author
text
article
2015
per
Birds as the dominant species in urban ecosystems by increasing the attraction of the park and the satisfaction of its visitors are more attracted to the natural environment, therefore, attracting and protecting birds in urban parks can be one of the objectives of the managers in this area. The purpose of this paper is to examine the motivations of visitors and assessment of avian awareness in Mellat and Pardis parks in Mashhad city. The present study was done by using a questionnaire survey (survey study) and data were collected from 100 visitors in during in the city of Mashhad in the summer and autumn of 2011.In this study, 53% female and 47% male participants and indicated that , 55% of them were somewhat familiar with birds also nature watching was 40% and bird watching was 14% of their favorites in Mellat and Pardis parks .Chi-square test results in 5% level showed there is a significant relationship between occupation and age, sex and level of education and the coming days to visit the park and knowledge of the birds and the coming to the park had no significant differences between gender, age, education and occupation .Thus need to increase green space and provide the content for visitors with the importance of bird conservation and planning and management in raising visitors awareness of birds in urban parks began to rise .
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
167
176
http://www.aejournal.ir/article_9335_0232413a2969a22cc3d7827ee1fd3875.pdf
Toxic effects of Nanosilver on Red Blood Cells (RBC) and liver tissue of common carp (Cyprinus carpio)
Samaneh
Masoumi
Department of Marine Biology, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Shahla
Jamili
Department of Marine Biology, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
Hassan
Niknejad
Nanomedicine and tissue engineering research center, Shahid Beheshti University of medical science, Tehran, Iran
author
Ali
Mashinchian
Department of Marine Biology, Science and Research Branch, Islamic Azad University, P.O.Box: 775-14515, Tehran, Iran
author
text
article
2015
per
The present study was performed to determine toxic effects of nanosilver on Red Blood Cells (RBC) and liver tissue of common carp (Cyprinus carpio). In this study, nanosilver with 10-50 nm in size and concentration of 10, 25, 50 and 100 microgram per liter (PPM) is used. Cellular changes of RBC were studied in Neutral Red Retention Assay (NRR) technique using light microscope at the intervals of 15, 30, 60, 90, 120, 150, and 180 minutes after addition of Neutral Red (NR) to the RBC. Simoultaneously, histopathological changes of the liver tissue were also studied using microscope equipped with a camera and computer. The results were compared with a control group and recorded. The results indicated that the nanosilver with 10 PPM concentration has no toxic effects after the addition of NR on RBC, but in concentration of 25 PPM, cell damage was observed. By changing the concentration of 25 PPM to 50 PPM, destruction of red blood cells increased, so that in the 100 PPM concentration, cell lyses was prominent. Nanosilver with 10 PPM concentration had shown relatively mild toxic effects on liver tissue, while shifting the concentration of nanosilver from 10 PPM to 25, 50 and 100 PPM, resulted in increased liver tissue damage. It may be concluded that, severity of toxic effects of nanosilver on fish RBC and the liver tissue are directly related to increased nanosilver concentration and duration of exposure.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
177
185
http://www.aejournal.ir/article_9336_2b7aaf41edc02e4590989409b8d27005.pdf
Effect of different Photoperiod and light intensity on the pineal gland size in broodstock of white spotted rabbit fish (Siganus sutor)
Farzaneh
Qeytaspour
Department of Fisheries, Science and Research Branch, Kurdistan Islamic Azad University, P.O.Box:618, Sanandaj, Iran
author
Abbas
Matinfar
Iranian Fisheries Research Organization (IFRO), P.O.Box: 14155-6116, Tehran, Iran
author
Mansouerh
Gholami
Department of Fisheries, Sanandaj branch of Islamic Azad University, P.O.Box:618, Sanandaj, Iran
author
text
article
2015
per
This research carried out to study the effects of light intensity and photoperiod on the size of pineal gland of siganus sutor. Nine experimental treatments of artificial lighting conditions including of three different photoperiods (16L/8D), (12L/12D), (8L/16D) and three levels of light intensity including 1000, 2000 and 3000 lux arranged. Natural light sued for control treatment and duration of experiment was 60 days, and research carried out in Persian Gulf Ecological Fisheries Research Center in Bandar Abbas. At the end of study, pineal organs extracted and size and volume of gland measured by using stereomicroscope. The results showed that, volume of control treatment was higher than other treatments, but the difference was not significant (P>0.05).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
187
193
http://www.aejournal.ir/article_9337_6d6bf8afc63f9dd06fa23bf40c5fdf41.pdf
Study on diversity and density of zooplankton communities and its relation with environmental factors in Gomishan Wetland
Sarah
Haghparast
Department of Fishery, Faculty of Fishery and Environmental Science, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
Rasul
Ghorbani
Department of Fishery, Faculty of Fishery and Environmental Science, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
Mohammad Javad
Vesaghi
Department of Fishery, Faculty of Marine Science and Technology, Hormozgan University, P.O.Box: 3995, Bandar Abbas, Iran
author
text
article
2015
per
The role and importance of zooplankton in food chain and ecological pyramid of Wetland ecosystems has been remarkably considered. As Gomishan Wetland is affected by the increasing and decreasing of water level, the diversity, density and spatial distribution of zooplankton fauna could influence on the ecosystem cycling of matter. Hence, in the present study, the diversity, density and spatial distribution of zooplankton fauna inhabiting in the Wetland at four stations (Gomishan Estuary, Zehkesh, Bandar Torkman, and Shrimp site) in spring and summer 2011. To do so, comparisons of density, diversity and evenness indices amongst different locations of the studied stations were conducted and RDA analysis was used to investigate the relationship and effect of environmental factors on density of zooplankton taxa. The identified Zooplankton taxa included bivalvia (Pyrgulidae, Scrubicularidae, Cardiidae, and Mytilidae), Calanoida, Ostracoda, Foraminifera, Nematode, Chironomidae, and Gamaridae. For most of comparisons, indices of N, S, d, J, H, λ showed no significant difference (P>0.05) amongst various locations of each sampling station in the studied seasons (spring and summer). Results of RDA analysis showed a difference amongst various sampling stations in affecting physicochemical parameters on zooplankton density at each seasons.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
195
208
http://www.aejournal.ir/article_9338_c0b493ee764c0d9312e3968bb6b35c62.pdf
Survey of some aspects of the reproductive biology Siah Mahi (Capoeta capoeta gracilis) In Babol River
Pardis
Pahlavani
Department of Fishery, Babol branch of Islamic Azad University, P.O. Box:755, Babol, Iran
author
Saber
Vatandoust
Department of Fishery, Babol branch of Islamic Azad University, P.O. Box:755, Babol, Iran
author
Rasul
Ghorbani
Department of Fishery, Faculty of Fishery and Environmental Science, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box:49138-15739, Gorgan, Iran
author
text
article
2015
per
This research was carried out on Capoeta capoeta gracilis, from August 2010 to July 2011.in the Babolrood river of Mazandaran province. The sampling was done monthly and samples were collected by Electroshoker. In total 224 numbers of this kind were caught. Total length,forka length, standard length, body weight, age, sex, gonad weight, and ovum diameter were measured and recorded. Fish scales were used for the determination of age. Total length mean was 146.29 Ml with the standard deviation of 22.79, and 130.76 with the standard deviation of 22.29 in the female and male sex respectively. Total weight mean was 42.63 with the standard deviation of 20.75, and 30.79 with the standard deviation of 16.56 in the female and male sex respectively. Samples belonged to the age groups (0, 1, 2, 3, 4). Most of them (%39.7) belonged to the age group (3). Ovum diameter mean was 0.76 mm with the standard deviation of 0.57in tajan river, were 3603 and 65.56 with the standard deviation of 2796 and 36.7 respectively. The GSI mean was %3.1 with the standard deviation of 3.53, and %3.29 with the standard deviation of 7.21 in the female and male sex respectively. The mean of fatness coefficient or quantity coefficient or CF value was 1.26 with the standard deviation of 0.11, and 1.33 with the standard deviation of 0.91 in the female and male sex respectively.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
209
219
http://www.aejournal.ir/article_9339_9192aaf8c9df4c315ac962f5aa05aaa8.pdf
Investigation of Tajan River Quality with Using Population Structure of Benthic Invertebrates and BMWP Index
Milad
Shokri
Faculty of Agricultural Sciences and Natural Resources, Hormozgan University, P.O.Box: 3995, Bandar Abbas, Iran
author
Mohammad Reza
Ahmadi
Department of Health and Diseases, Faculty of Veterinary Medicine, Tehran University, PO Box: 1318-13145, Tehran, Iran
author
Hossein
Rahmani
Department of Fisheries, Sari Agricultural Sciences and Natural Resources University, P.O.Box: 578, Sari, Iran
author
Ehsan
Kamrani
Department of Fisheries, Hormozgan University, P.O.Box: 3995, Bandar Abbas, Iran
author
text
article
2015
per
Bioassessment of the Tajan River with using of BMWP index and population structure of macro invertebrates has been done every month in six research stations with three times in each station at a distance of about 80 km from September 2011 to August 2012. Sampling Invertebrates was done by surber sampler (with an area of 0.1 square meters and with 60µ mesh net), and macro invertebrates were indentified belonging to 32 genera, 30 families, 12 orders and 5 classes. Population structure of macro invertebrates showed that aquatic insect´s larvae dominated among identified in all stations, and sensitive taxa to pollution (EPT) was dominant in stations 1, 3, 4 and 6 respectively, that have significant increase than other stations (p≤0.05). Based on BMWP Index results, research stations are classified in 3 qualitative categories, good, moderate and poor. This index has maximum value at station1, in spring season and has minimum value at station 5, in summer season. The maximum abundance of macro invertebrates there was at station 3, in winter season that has significant increase than other stations (p≤0.05), also the minimum of this index was observed at station 5, in winter season. Population structure macro invertebrates and abundance, %EPT and BMWP indices indicated that stations 5, 6 and 2 are not in an appropriate condition qualitatively.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
221
230
http://www.aejournal.ir/article_9340_6df633032378b6f3d31db6eeb52bee28.pdf
Histological changes of gonads in the white spotted rabbit fish (Siganus sutor) under photoperiod fluctuations
Mehrdad
Shirinabadi
Department of Fisheries, Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University, P.O.Box:775-14515, Tehran, Iran
author
Abbas
Matinfar
Iranian Fisheries Research Organization (IFRO), P.O.Box: 14155-6116, Tehran, Iran
author
Abolghasem
Kamali
Department of Fisheries, Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University, P.O.Box:775-14515, Tehran, Iran
author
Homayoun
Hosseinzadeh Sahhafi
Iranian Fisheries Research Organization (IFRO), P.O.Box: 14155-6116, Tehran, Iran
author
text
article
2015
per
In this study, the effects of photoperiod alternation on the maturational progress of the white spotted rabbit fish (Siganus sutor) were investigated. A hundred adult fish (total length: 306.4 ± 2.12 mm; body weight 401.5 ± 8.45 g) were caught from Lavan Island. They were divided in 300 l tanks (n = 5) and exposed to tree different day length including 8, 12 and 16 h combined with constant 2000 lux light intensity with three replicates during prespawning season. After 60 days, the GSI mean values were 2.03± 0.34%, 5.83± 0% and 10.39± 0.80%, respectively, for females and 8.15± 0.43%, 13.91± 1.52% and 14.56± 0.41%, respectively, for males according to photoperiods. These results showed significant differences between fishes were reared under 8 h and 16 h photoperiods (P<0/05). In the case of gonad histology, the maturity stages of ovaries along with photoperiod increasing were 3, 4 and 5; whereas testes of males reared in all treatments reached to stage 5. These results clear that increasing of light duration from 8 h to 16 h in combination with 2000 lux light intensity have positive relation with the gonadal progress of white spotted rabbit fish in both sexes. Thus, rearing of fish fewer than 16 h day length obtains the highest level of sexual maturity.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
231
240
http://www.aejournal.ir/article_9341_aaaeef962b73b91da4612930dd994c48.pdf
Infection of south sisorid catfish, Glyptothorax silviae (Actinoptrygii: Sisoridae) with Anchor Worm Lernaea sp. (Lernaeidae) in Saimareh River, Ilam province
Golnaz
sayyadzadeh
Department of Biology, School of Science, Shiraz University, P.O.Box: 1585-71345, Shiraz, Iran
author
Hamid Reza
Esmaeili
Department of Biology, School of Science, Shiraz University, P.O.Box: 1585-71345, Shiraz, Iran
author
Saber
Vatandoust
Department of Fishery, Babol branch of Islamic Azad University, P.O. Box:755, Babol, Iran
author
text
article
2015
per
The south sisorid catfish, Glyptothorax silviae is an endemic species that has been described from Jarrahi River, Khuzestan province. This species is distributed in west and southwest of Iran including Tigris-Eupherat and Persian Gulf basins. During a study on morphology of 14 collected G. silviae from Saimareh River, Lernaea sp. parasites were observed in the skin at pectoral fins and gills of eight specimens. The prevalence of this ectoparasite was 57.14%. This is the first report on the infection of Glyptothorax silviae with Lernaea which is aparasitic copepod found on the skin and gills of freshwater fishes and has been widely translocated with cultured fish species throughout the various freshwater of the world. Since Glyptothorax silviae is an endemic species, this discovery may provide useful information in conservation of south sisorid catfish and prevent prevalence of this parasite.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
241
244
http://www.aejournal.ir/article_9342_10032518e791b1c3a10068f6b5a8bb52.pdf
Comparison of Nutritional value of Snapping shrimp species Alpheus lobidens with other live foods used in Aquaculture
Marzieh
Jafari Naemi
Department of Fisheries, Faculty of Agricultural Sciences and Natural Resources, Hormozgan University, P.O.Box: 3995, Bandar Abbas, Iran
author
Ehsan
Kamrani
Department of Biology, Faculty of Science, Hormozgan University, P.O.Box: 3995, Bandar Abbas, Iran
author
Ahmad
Noori
Department of Fisheries, Faculty of Agricultural Sciences and Natural Resources, Hormozgan University, P.O.Box: 3995, Bandar Abbas, Iran
author
Tahmineh
Anahid
Hormozgan Applied Science Education Center of Jahad-e-Agriculture, P.O.Box: 1886, Bandar Abbas, Iran
author
text
article
2015
per
This study was done to assess the nutritional value of snapping shrimp species Alpheus lobidensof the east coast of Hormozgan Province. Sampling was done during the winter and 50 g of living samples were transmitted to the laboratory for measuring the protein, fat, and ash indexes. Analysis of snapping shrimp body composition revealed that 81.22±0.6% protein, 11.48±0.3% fat and 7.28±0.3% ash in dry weight that it had more protein to other live foods used in aquaculture (rotifers, Artemia nauplii, adult brine shrimp , daphnia and mysid ) and was comparable to adult Artemia nauplii and mysid. Given the need for protein in shrimp, %23-57 and %40-60 of marine fish, therefore they can be a suitable live food for a period of shrimps and some of marine fish larvae and freshwater fish life.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
245
248
http://www.aejournal.ir/article_9343_08716b1d570d476a19a8b11c5ae77af1.pdf
Determination of Allowable Consumption Rate of important fish species in Anzali Wetland based on Mercury Content in muscle tissue
Javad
Amarloo
Department of Environmental science, Faculty of Natural Resources and Marine Sciences, Tarbiat Modaqres University-International Campus, P.O.Box: 356-46414, Noor, Iran
author
Abbas
Esmaili sari
Department of Environmental science, Faculty of Natural Resources and Marine Sciences, Tarbiat Modaqres University-International Campus, P.O.Box: 356-46414, Noor, Iran
author
Nader
Bahramifar
Department of Environmental science, Faculty of Natural Resources and Marine Sciences, Tarbiat Modaqres University-International Campus, P.O.Box: 356-46414, Noor, Iran
author
text
article
2015
per
Balance between benefits and risks of fish consumption, today has become one of the most important public health issue. This is partly because of concerns about dangerous compounds such as PCBs and mercury contamination of fish. Fish Allowable Consumption Rate is used as a way to balance the risk of fish consuming with health benefits which are provided by a diet containing seafood. In present study, total mercury concentration in muscle of Pike (Esox lucius), Common Carp (Cyprinus carpio) and Perch (Sander lucioperca), were measured to determined the Allowable Consumption Rate and compare mercury level with threshold level proposed by EPA, WHO, FAO and FDA. For this purpose, 20 samples of each species in different sizes were caught from Anzali wetland in February 2011. After measuring length and weight of samples, the Mercury concentration was determined using an advance mercury analyzer according to ASTM D-6722. The average of mercury concentration in Pike, Common Carp and Perch was 334.47, 208.81 and 127.28 µg kg-1 wet weights respectively. Mercury in muscle of Pike was more than EPA threshold level (300 µg kg-1). A positive significant correlation was observed between mercury concentration and weight and length of fish (p<0.05). The Allowable Consumption Rate for consumers with different body weights was obtained using EPA methodology and shown that consumption of fish species, especially Pike, is associated with limitations.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
249
255
http://www.aejournal.ir/article_9344_486799a4a69dbe8482b042ef904be418.pdf
Biogenic Activities of mudskipper in the Recent Intertidal Mud Flats along the Qeshm Island Coast, south of Iran
Mohsen
Ranjbaran
School of Geology, College of Science, University of Tehran P.O.Box:14155-6455, Tehran, Iran
author
Farzad
Sotohian
Department of Environmental Science, Faculty of Natural Resources, University of Guilan, P.O. Box: 1144, Sowme'eh Sara, Iran
author
text
article
2015
per
Behavioral activities of the mudskipper were observed in the intertidal zone around Qeshm island Coast, south of Iran. Intertidal zone is broad, and comprise of creeks, muddy flat and vegetated by mangro veudy area which are hospitable for the mudskippers. Different types of biogenic activities are observed such as crawling, pellet making, grazing and burrowing. The crawling activity is part of movement of the mudskipper from one burrow to another burrow and pellet making activity is part of burrow modification. The grazing activity is feeding on the surface mud after receding of tide and exposure of the tidal flat by left and right movement of the front part of the body. In the muddy sediments mudskipper produced circular to oval rimmed muddy lumps as surface expression around the burrows and further produced funnel shape depression and downward extended cylindrical holes, while in the runnels burrows are usually small and simple. In all, behavioral structure produced by the mudskipper marks the combined activity of dwelling, feeding and grazing.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
6
v.
4
no.
2015
257
264
http://www.aejournal.ir/article_9345_03720e1424d0c998953f600e26560c39.pdf