Abundance and Biodiversity of Phytoplankton Community of Warm Water Fish Ponds with New Management System (Mix of Adult and Fingerling at Same Pond) at East of Golestan Province, Iran
Subject Areas : New Technologies in Aquaculture Development
Keywords: Keywords: Phytoplankton, Integrated culture of adult and fingerling fishes, Warm water fishes ponds, East of Golestan Province,
Abstract :
Abstract[1] The aim of this study was determination of abundance and biodiversity of phytoplankton community at integrated fish culture of adult and fingerling fishes with together at East of Golestan Province, at Gonbade Kavous city. Sampling were done monthly from June to November 2011. Samples preserved with 2-4% formalin and transfer to the laboratory for study with light microscope. Finally, 7 groups and 39 genus were identified. Between recorded groups, 18 genus belong to Chlorophycea, 10 genus belong to Cyanophycea, 6 genus belong to Bacillariophycea, 2 genus belong to Euglenophycea, 1 genus belongs to Dinophycaea, 1 genus belongs to Chrysophycaea and 1 genus belongs to Charophycea. Highest of total density belong to Chlorophyceae, Cyanophyceae and Bacillariophycea with 228.9, 110.9 and 79.5 (cells/ml), respectively and lowest of total density belong to Charophyceae, Chrysophyceae, Euglenophyceae and Dinophyceae with 9.6, 7.4, 2.5 and 1.8 (cells/ml), respectively observed during 3 ponds. According to the results, sum of dominance genus density of total groups equivalent 64% of total density. This study showed that density and diversity of phytoplankton community affected by physico-chemical factors. We suggest that intensive and semi-intensive warm water fish culture system with mix of adult and fingerling fish at Iran can will be done with high economic and efficiency level. * Corresponding Authors; Email: mehrdad_kamaly86@yahoo.com
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