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Mortality of farmed pearl oyster Pinctada fucata (Gould, 1850) due to the blooming of Noctiluca scintillans and Cochlodinium sp. at Kollam Bay, Kerala

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Relation http://eprints.cmfri.org.in/2140/
 
Title Mortality of farmed pearl oyster Pinctada fucata (Gould, 1850) due to the blooming of Noctiluca scintillans and Cochlodinium sp. at Kollam Bay, Kerala
 
Creator Mohamed, K S
Kripa, V
Jugnu, R
Radhakrishnan, P
Alloycious, P S
Jenni, B
Joseph, Mathew
Velayudhan, T S
 
Subject Pearl oyster
 
Description 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.
 
Publisher MBAI
 
Date 2007
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/2140/1/Mohammed_213-218.pdf
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.