Surveying the density and distribution of Plankton and their role on Aquaculture in the Hassanloo reservoir dam
Author(s):
Article Type:
Research/Original Article (بدون رتبه معتبر)
Abstract:
In the studies of the comprehensive fishery project of the Hassanloo lake, planktonic studies were considered as basic studies to increase the production of fish in this lake.These studies were carried out during three phases of sampling from 2001 to 2005 to this lake in the West Azerbaijan. Plankton sampels were collected with (P.V.C) tube (lenth, 2m), in Phytoplankton 1 liter water samples (without filtering )and in Zooplankton 30 liter water sample were filtered with a (30 µm) Zooplankton net , Finally sampels were fixed with % 4 formaldehyde. in laboratory sampels after preparetion were identified and counted under a invert Microscope. In phytoplankton research, there were 5 phyla and 52 genera and in zooplankton 3 Phyla and 34 genera were identified in this lake.The production indicate seasonally which the peak of phytoplankton density occured in Summer and the Phylum of Bacillariophyta were abundant and among Phytoplankton genera Synedra, Diatoma, Nitzschia and Navicula showed dominate in water-body. In general the yearly average of Bacillariophyta numbers calculated 2494127 / lit. It had %38 population during year. In Zooplankton study results showed that Rotatoria had maximum density in Spring and among Zooplankton genera Synchaeta , Keratella , Lepadella and Brachionus showed dominate in water-body. In general the yearly average of Rotatoria numbers calculated 1298 / lit and it had %66.3 Zooplankton population during year. Comparison of planktonic observations and physical and chemical data of water, showed that Hassanloo lake have talents and suitable planktonic species for feeding and rearing their fish. Thus, Natural reserves of this source can be used to increase the value of fishery fish.
Keywords:
Language:
Persian
Published:
Advanced Aquaculture Science Journal, Volume:2 Issue: 1, 2018
Pages:
83 to 98
https://magiran.com/p2366389
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