Identified and abundance indicated of fresh water fishes in Markazi province
Siamak
Yousefi Siahkalroodi
Faculty member/ Islamic Azad University of Varamin-Pishva bransh
author
Mona
Izadian
Master of Science in Marin Biology, Shil Amayesh Consultants Engineering Co. Tehran, Iran
author
text
article
2009
per
Identification, species diversity and abundance of fishes in Markazi province, were studied during years 2004-2006. Nineteen stations were selected that included aquatic resources such as springs, rivers and dam's lakes. Fishes were caught and transferred to the lab on monthly basis. The fish were then identified using reliable references. Results indicated that 13 genus and 18 species belonged to the Osteichthyes class. Species of Alburnoides bipunctatus with 26.7% was the most abundant and Gambosia holbrooki with 0.98% was the least abundant in 19 stations. Also 3 of the exotic fishes (Grass carp, Silver carp & Gambosia) were noticed in this survey.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
1
v.
1
no.
2009
1
8
http://www.aejournal.ir/article_103127_6e187df67644864a73767ea61f26c4f1.pdf
Survey of physico-chemical characteristics of Gahar Roud River
Kamran
Mazhari Tabrezei
Master of Science in Natural Resource, Shil Amayesh Consultants Engineering Co. Tehran, Iran
author
Negein
Shafiee
Master of Science Environmental Engineer, Islamic Azad University, North Tehran Branch, Tehran, Iran
author
text
article
2009
per
In order to measure physic-chemical characteristics of Gahar Roud River a total of 7 stations were selected in a 17km of river rout. 252 samples of water collected from the stations and were studied for their characteristics. This part of the experiment was carried out from January 2004 to January 2005. In this study, factors such as temperature, total hardness, calcium, magnesium, electrical conductivity, pH, phosphate, chlorine, BOD5, DO, TDS, TSS, SS, NTU and choliforms of samples were surveyed and analyzed. Due to the meaningful difference in the test results at the levels of 1 to 5, it can be concluded that ecological criteria of the river is in content change in its rout.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
1
v.
1
no.
2009
9
15
http://www.aejournal.ir/article_103128_016f119b88e9a7d878ddfb8082054b44.pdf
Study on identification and abundance of phytoplankton in coastal waters of Golshahr coast, Bandar Abbas (Persian Gulf)
Hanieh
Saeedi
Department of Biology, Faculty of Biological Sciences, Shahid Beheshti University, Tehran, Iran
author
Arya
Ashja Ardalan
Department of Marine Biology, Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch
author
text
article
2009
per
This study carried out during April 2007 to March 2008, for identification and determination of abundance of phytoplankton in Park-e-Dolat coastal waters of Bandar Abbas, Persian Gulf. During one year of study and monthly sampling, 19 genera consist of 11 genera of diatoms, 6 genera of dinofelagellata, 1 genus of blue-green algae Oscillatoria and one genus of green algae Zygnema were identified. The maximum and minimum diversity of phytoplankton were in January (13 genera) and in March (3 genera), respectively. The maximum and minimum abundance of phytoplankton were in June (208171666cell/m3 and 47.37%) and in March (212748cell/m3 and 0.04%), respectively. Oscilatoria sp. was the most abundant phytoplankton during one year in coastal waters of Bandar Abbas (209995585.3cell/m3). Environmental parameters including sea surface temperature, salinity, dissolved oxygen and pH were studied monthly during the study period and were 27.08±8.60°C, 39.20±1.16ppt, 5.91±0.22mg/l and 8.30±0.31, respectively. There was not a significant relationship between environmental parameters and diversity, abundance and frequency of phytoplankton during one year (Pearson coefficient, P>0.05), but only, there was a negative significant relationship between salinity and diversity of phytoplankton (r2= -0.77, P<0.05).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
1
v.
1
no.
2009
17
25
http://www.aejournal.ir/article_103129_cd028cb2d792abfad14d16f31537c760.pdf
Salinity and water temperature optimization for HUFA enrichment of Artemia urmiana nauplii with emulsion ICES30/4
Mahmood
Hafezieh
National Institute of Fisheries Research, Tehran, Iran
author
Naser
Agh
Artemia and Aquatic Animal Research Center, Urmia University, Urmia, Iran
author
Mansour
Sharifian
National Institute of Fisheries Research, Tehran, Iran
author
Homeira
Hosseipour
Main Office of Education and Teaching of area̋, Tehran, Iran
author
text
article
2009
per
Enrichment of live food with HUFA, specially EPA and DHA for marine fish's larviculture is necessary for increasing survival and growth rates. During this research, Artemia urmiana nauplii were enriched with ICES30/4 for 24h. The variables used in this experiment were different salinities of 12, 23 and 33ppt. and temperatures of 22, 25 and 28°C in three replications. The fatty acid contents of Artemia samples from each experiment were measured with GC. Statistic design used was completely randomized design with Dunkan's Test. Results showed rather high increase of fatty acids of EPA and DHA, this increase was from 3.1 in control to 9.18 percent for EPA at 25°C and salinity of 23ppt. (P<0.0098) and for DHA from 0 to 0.8 percent at 22°C and 33ppt. salinity. The best condition for DHA:EPA ratio is 33ppt and 28°C (P<0.11).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
1
v.
1
no.
2009
25
32
http://www.aejournal.ir/article_103130_b1fd6183c09c34ca3fc3317e902a67c6.pdf
Survey of impacts of the Emarat fish rearing farm on the water quality of Emarat or Gahar River
Roxana
Fallahi
Shil Amayesh Consultants Engineering Co. Tehran, Iran
author
Behrouz
Abbaszadeh
Shil Amayesh Consultants Engineering Co. Tehran, Iran
author
text
article
2009
per
Enrichment of live food with HUFA, specially EPA and DHA for marine fish's larviculture is necessary for increasing survival and growth rates. During this research, Artemia urmiana nauplii were enriched with ICES30/4 for 24h. The variables used in this experiment were different salinities of 12, 23 and 33ppt. and temperatures of 22, 25 and 28°C in three replications. The fatty acid contents of Artemia samples from each experiment were measured with GC. Statistic design used was completely randomized design with Dunkan's Test. Results showed rather high increase of fatty acids of EPA and DHA, this increase was from 3.1 in control to 9.18 percent for EPA at 25°C and salinity of 23ppt. (P<0.0098) and for DHA from 0 to 0.8 percent at 22°C and 33ppt. salinity. The best condition for DHA:EPA ratio is 33ppt and 28°C (P<0.11).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
1
v.
1
no.
2009
33
39
http://www.aejournal.ir/article_103131_6d9c814b9231a6f2c880fc8fa633dd8c.pdf
Optimization of Persian sturgeon larval feeding method from active feeding to 5 grams weight
Mahmood
Hafezieh
National Institute of Fisheries Research, Tehran, Iran
author
Naser
Agh
Artemia and Aquatic Animal Research Center, Urmia University, Urmia, Iran
author
Homeira
Hosseipour
Main Office of Education and Teaching of area̋, Tehran, Iran
author
text
article
2009
per
In order to improve the feeding method in economical Persian sturgeon (Acipenser persicus) from active feeding to 5 g weight, alternative nutritional such as un-enriched and enriched artemia nauplii with vitamin C, daphnia, formulated diet and their combinations were used. Fish larvae in active feeding with initial length and weight of 17.8 mm and 28.2 mg, respectively moved from Rajaii Complex Propagation, Sari to Artemia Research Center of Urmia University and after 5 days feeding with artemia nauplii, the length and weight reached to 21.4 mm and 50.5 mg, respectively. Hatching artemia cysts and daphnia production were done with standard method. Second stage of experimental feeding was started with 300 larval densities in each tank with length and weight of 21.4 mm and 50.5 mg, respectively with artemia nauplii (treatment 1), 50% artemia nauplii and 50% formulated diet (treatment 2), artemia nauplii enriched with vitamin C (treatment 3) and 50% artemia nauplii enriched with vitamin C and 50% formulated diet (treatment 4). During 15 days (end of the second stage) feeding was done 5 times frequency per day with 30% and 10% of body weight from live food and formulated diet. The results showed that weight of the first treatment's larvae was significantly higher than the other treatments (P<0.05). The length of the forth treatment fish larvae was significantly lower than the others (P<0.05) but there were not differences between larval length in treatment 2 and 3 (P>0.05). In the third stage all the previous treatments were fed with three feeding trials, combinations of 50 and 25% of live food and the rest with formulated diet for ten days and at the end of this study, 45th days, all fish larvae were fed only with formulated diet. The results showed that all fish larvae of the second stage which had been fed artemia and formulated diet, had good and regular growth rate which there were not significantly differences between them (P>0.05) but at the end of experimental period, only treatment 1 of the second stage (100 artemia nauplii) which had been fed 50% artemia and formulated diet and 25% artemia and formulated diet selected as the best feeding model for reaching to 5g weight of fish fingerlings. Also, these treatments showed that the highest SGR, the lowest FCR and the highest survival rate after 72h exposed in 12 and 16 ppt salinity which had significant difference with the other treatment (P<0.05).
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
1
v.
1
no.
2009
41
50
http://www.aejournal.ir/article_103132_46e450b5ec99e29be81e4352d72bc09b.pdf
Study of consuming earthworm (Eisenia foetida) in rainbow trout (Oncorhynchus mykiss) nutrition (as base of protein source)
Ali
Mahmoud Aghdam
Department of Animal Sciences, Faculty of Agriculture, Islamic Azad University, Varamin Pishva Branch, Iran
author
Siamak
Yousefi Siahkalroodi
Department of Animal Sciences, Faculty of Agriculture, Islamic Azad University, Varamin Pishva Branch, Iran
author
text
article
2009
per
Eisenia foetida the species of earthworm is a part of important commercial species that its culture has been considered all over the world in previous years. Also some activities have been carried out in this field during these years. This inquiry has been done because of applying earthworm in rainbow trout fish (Oncorhynchus mykiss) feeding.In this examination the effect of various levels of earthworm in rainbow trout growth in (GFT2) stage was done. At the beginning, the weight of fishes was 140g. Each treatment was consist of 20 number of Rainbow trout fish. The required water for culturing was provided from a spring which was close to the farm with 14 mean temperatures. Four experimental diets on the basic of 38 percent of protein, 3300Kcal amount of energy and 13 percent of fat were containing of 10, 20 and 30 percent of earthworm. And another diet without earthworm was used as a control diet for feeding during a six weeks cultural period. In this examination, the parameters such as weight increasing percentage, total length increasing by the attention of the applied foods were measured. The diets that were consist of diverse levels of earthworm had significant differences (a = 0.5%) on weight increasing, total length increasing, standard length increasing and conversion factor. In comparing between different treatment, the diets which had 20 percent of earthworm had signification differences in the statically sight in weight, conversion factor, FER, total and standard length regarding the other diets and also had the best condition.
Journal of Animal Environment
Shil Amayesh Consulting Engineering Company
2717-1388
1
v.
1
no.
2009
51
56
http://www.aejournal.ir/article_103133_864bcba334ace0b54d6c5333ba8f2f24.pdf