Study on phytoplankton density in Tiab shrimp culture ponds during culture period
2004
Rohani Ghadikolaei, K., Ecology Dep., Persian Gulf and Oman Sea Ecological Research Institute, Bandar Abbass, Iran | Salehi, A. A., Aquaculture Dep. Ecology Dep., Persian Gulf and Oman Sea, Ecological Research Institute, Bandar Abbass, Iran | Tamadoni, S., Genetic Dep., Persian Gulf and Oman Sea Ecological Research Institute, Bandar Abbass, Iran
Shrimp larvae in early stages of life are dependent on primary products of ponds (phytoplankton) and need time to adopted to dietary regims. This study was designed to investigate diversity and density fluctuations of phytoplankton in hrimp ponds during culture priod. Three shrimp culture farms namedy Zarabzy, Kar office and Mahkish were involved in this investigation. Total sampling duration was from June to November 1999 and sampling period was 10-14 days. During this study 14 genera of phytoplankton related to diatoms, dinoflagellates and blue-green algae were identified. Diatoms represent 8 genera, followed by 4 genera of dinoflagellata and only 2 genera of blue-green algae. Maximum and minimum phytoplankton density were recorded in Kar office and Mahkish farms, and maximum minimum species diversity were found in Mahkish and Zarabzy farms respectively. The statical analysis indicated that there is significant difference between density of blue-green algae and diatoms during shrimp culture period (p0.05). Key words: Phytoplankton, Diatoms, Blue-green algae, Dinoflagelata, Shrimp culture ponds, Penaeus indicus, Tiab area of Hormozgan province
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