Ecological indices of diversity, richness, dominance and evenness of zooplankton community at warm water fishes ponds at East of Golestan Province (Gonbade Kavous city)
Subject Areas : New Technologies in Aquaculture Development
مهرداد
Kamali Sanzighi1
1
(Young Researcher and Elite Club, Azadshahr Branch, Islamic Azad University, Azadshahr, Iran)
امیر
رحیمی
2
(باشگاه پژوهشگران جوان و نخبگان، دانشگاه آزاداسلامی، واحد آزادشهر، آزادشهر، ایران)
افشین
قلیچی
3
(گروه شیلات دانشگاه آزاداسلامی، واحد آزادشهر، آزادشهر، ایران)
Keywords: Golestan province, Zooplankton, Ecological Indices, Warm Water Fish Ponds,
Abstract :
The aim of this study was estimated the ecological indices of diversity, richness, dominance and evenness of zooplankton community of warm water fish ponds in Gonbade Kavous city at east of Golestan Province. The sampling was done during one culture period from June to November 2011. The results showed that, there is no significant differences between diversity, dominance and evenness ecological indices at 6 ponds observed (P>0.05) but there is significant differences between richness index at 6 ponds (P<0.05). Diversity, richness, dominance and evenness indices value ranged from 0.43-0.77, 0.25-0.61, 0.54-0.72 and 0.36-0.73 respectively. Although, the diversity, richness, dominance and evenness indices showed higher association in ponds 2, 1, 3 and 2 but the lower association occurred in ponds 3, 4-6 commonly, 2 and 1. The correlation analysis between zooplankton community and ponds water physico-chemical parameters showed that total density of zooplankton community had significant correlation with NO3, PO4 and P-PO4 -0.926, 0.939 and 0.952 respectively. Other ecological indices had no correlation relative with other ponds water physico-chemical parameters. The results showed that diversity, richness, dominance and evenness ecological indices of zooplankton community in fish ponds affected by ecosystem management, climate condition and grower fishes.
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