Institute of aquaculture Inland water, Fisheries Research Institute, Agricultural Research and Training Organization, Bandar Anzali, Iran.
Abstract
To study the density and distribution of phytoplankton, sampling was conducted in 6 stage from April till March 2016. Phytoplankton samples horizontally and vertically from different depths (0, 5, 10 and 20 m) by harvesting water with Ruthner and bring to a volume of 10 liters, homogenize and finally picked it took a liter. Samples 4% formalin fixed and in the laboratory using 5 ml containers and inverted microscope were identified and counted. Investigate totally distinguished 35 genus in 6 Phylums among of genus, Bacillariophyta, Euglenophyta. Chlorophyta, Pyrophyta, Chrysophyta and Cyanophyta had 8 genus, 1 genus, 13 genus, 3 genus, 2 genus and 5 genus respectively. In this reservoir dam the Phylum of Bacillariophyta was dominant of Phytoplankton with 73.8 % of population annually and genus Cyclotella , Navicula and Synedra were dominant samples. The Phylum of Chrysophyta has been located the second position with genus of Dinobryon and Synura and frequency 12.2 % . Other of Phytoplankton phylums were least population such as Chlorophyta with genus of Scenedesmus, Cosmariumand Tetraedronwith frequency 8.2 %. In all of the sampling months, mean of the most of Phytoplanktonic density belonged to Phylum of Bacillariophyta 69500449±11456 number in liter that in the spring with an abundance of 25044064 ± 467892 showed the highest density per liter. Phytoplankton abundance of phylum in summer, autumn and winter seasons with a lot of density 17323830, 10786088 and 16346467 per liter respectively. The maximum abundance of phytoplankton in a station 1 (crest dam) with an abundance 7,589,932, station 3 (end lake) with a frequency of 6637800 and two station (the middle section lake) with a frequency of 5,495,732 per liter respectively. According to the tropic index and according to the degree of transparency, the phosphate, nitrogen and chlorophyll a values obtained from physical and chemical data, Karde reservoir located at the level of Meso-trophic lakes.According to non-parametric analysis Kruskal-Wallis and Mann-Whitney there were statically significant difference between Phytoplanktonic frequency in different stations and months (P<0.05). The study also spring seasons showed significant differences with the other three seasons (P>0.05).
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Salavatian, M., Pourgholami mogaddam, A., Makarami, M., & khatib Hagigi, S. (2018). Identify and study the density and distribution of Phytoplankton in the Kardeh reservoir in Khorasan Razavi. Journal of Animal Environment, 10(2), 269-276.
MLA
Mohammad Salavatian; Akbar Pourgholami mogaddam; Marziyeh Makarami; sepideh khatib Hagigi. "Identify and study the density and distribution of Phytoplankton in the Kardeh reservoir in Khorasan Razavi". Journal of Animal Environment, 10, 2, 2018, 269-276.
HARVARD
Salavatian, M., Pourgholami mogaddam, A., Makarami, M., khatib Hagigi, S. (2018). 'Identify and study the density and distribution of Phytoplankton in the Kardeh reservoir in Khorasan Razavi', Journal of Animal Environment, 10(2), pp. 269-276.
VANCOUVER
Salavatian, M., Pourgholami mogaddam, A., Makarami, M., khatib Hagigi, S. Identify and study the density and distribution of Phytoplankton in the Kardeh reservoir in Khorasan Razavi. Journal of Animal Environment, 2018; 10(2): 269-276.
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