Blooms of Trichodesmwm thiebautii and their effect on Experimental pearl culture at Veppalodai

Chellam, A and Alagarswami, K (1978) Blooms of Trichodesmwm thiebautii and their effect on Experimental pearl culture at Veppalodai. Indian Journal of Fisheries, 25 (1&2). pp. 237-239.

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Abstract

Blooms of the blue-green alga, Tricltodesmiiim thiebautii, were observed at the pearl culture farm off Veppalodai in the Gulf of Mannar in March-April and September, 1973. Although the alga occurred in high concentration, it did not cause any unusual mortality of pearl oysters in the open-sea farm. However, a few hu.ndreds of experimental oysters kept in bloom-laden water in the laboratory died due to the death and decay of t'he algal filaments. It is pointed out that in a widespread bloom situation, as in the present instance, work on pearl culture is hampered as it is not possible to draw clear, bloom-free water for "seeding" operations.

Item Type:Article
Uncontrolled Keywords:Blooms; Trichodesmwm thiebautii; pearl culture; Veppalodai
Subjects:Molluscan Fisheries > Pearl oyster
Divisions:CMFRI-Cochin > Marine Capture > Molluscan Fisheries
ID Code:767
Deposited By:Dr. V Mohan
Deposited On:01 Jun 2010 16:22
Last Modified:01 Jun 2010 16:22

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