Mohamed, K S and Kripa, V and Jugnu, R and Radhakrishnan, P and Alloycious, P S and Jenni, B and Joseph, Mathew and Velayudhan, T S (2007) Mortality of farmed pearl oyster Pinctada fucata (Gould, 1850) due to the blooming of Noctiluca scintillans and Cochlodinium sp. at Kollam Bay, Kerala. Journal of the Marine Biological Association of India, 49 (2). pp. 213-218.
Blooming of the dinoflagellates Noctiluca scintillans was observed at Kollam Bay, Kerala during September 2003 (bloom-1) and Cochlodinium sp. in September 2004 (bloom-2) with cell densities of 9.8 x 104 and 1.4 x 105 cells l-1 respectively. These caused 27% and 100% mortality of the farmed pearl oyster Pinctada fucata in the raft farms of Central Marine Fisheries Research Institute moored in the Bay. The mortality of the pearl oysters can be attributed to the high dissolved ammonia 14.9 μmol l-1 during bloom-1 and high dissolved ammonia (14.7 μmol l-1) and total suspended solids (154.8 mg l-1) during bloom-2. These instances of harmful algal blooms (HAB) indicate that precautionary management protocols should be developed to relocate the farm stock to overcome such natural causes to prevent economic loss to farmers.
|Uncontrolled Keywords:||Noctiluca scintillans; Cochlodinium sp.; harmful algal blooms (HAB); farmed pearl oysters|
|Subjects:||Molluscan Fisheries > Pearl oyster|
|Divisions:||CMFRI-Kochi > Marine Capture > Molluscan Fisheries
Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Molluscan Fisheries
CMFRI-Kochi > Marine Capture > Molluscan Fisheries
Subject Area > CMFRI-Kochi > Marine Capture > Molluscan Fisheries
|Depositing User:||Dr. V Mohan|
|Date Deposited:||09 Aug 2010 11:09|
|Last Modified:||09 Sep 2015 15:15|
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