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Bothid larvae (Pleuronectiformes-Pisces) of the Indian Ocean

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Title Bothid larvae (Pleuronectiformes-Pisces) of the Indian Ocean
 
Creator Devi, C B Lalithambika
 
Description 198-210
The larvae
of bothids were found to be sparsely distributed in the Indian
Ocean, being only 7.6% in IIOE collections (1960-65) and 13.5% in FOR
V Sagar Sampada (1986-90) samples. They were confined mostly to the coastal
waters. Their density was high in Bay of Bengal, with maximum number in Malacca Strait. Bay of Bengal may be considered
as the cradle for larval both ids holding 45.9% while only 38.4% occurred in
the Arabian Sea. They were more during
northeast monsoon period. There is no direct relationship between abundance of
zooplankton biomass and the number of bothid larvae. The present report
includes 23 species belonging to 9 genera from the Indian
Ocean, their regional, seasonal as well as diurnal variation s. Engyprosopon
grandisquamis dominated contributing to 23.2% of the total larvae.
Numerically the incidence of bothid .larvae suggested a uniform pattern of
distribution during the two monsoons. Yet certain species in the Arabian Sea like Arnoglossus tapeinosoma, Engyprosopon
multisquama, E. latifrons, E. grandisquamis and A. aspilos

aspilos showed
a preference to north east monsoon while E. cocosensis, Bothus myriaster, B.
pantherinus, Arnoglossus intermedius and Crossorhombus valde-rostratus showed
preference to south west monsoon. In Bay of Bengal

Engyprosopon grandisquamis was dominant during both the
seasons with a preference for S.W. monsoon and larvae of Engyprosopon
cocosensis, E. latifrons, Arnoglossus tapeinosoma and Bothus pantherinus
dominated during N.E. monsoon. In the Arabian Sea, eleven species were
dominant in the night samples whereas in the Bay of Bengal
only nine species showed affinity towards darkness. The study has enabled
delineation of the spawning grounds, incidence and relative abundance thus
providing data for the stock assessment and management of the economically
important bothid fishery resources of the Indian Ocean.
 
Date 2014-01-15T09:13:09Z
2014-01-15T09:13:09Z
1999-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25699
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.28(2) [June 1999]