GROWTH P TERS OF LEPTURACANTHUS SAVALA (CUVIER, 1829) FROM MU AI WATERS
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Authors
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V. D. Deshmukh
Mumbai Research Centre of the Central Marine Fisheries Research Institute Army
and Navy Building, 148 M. G. Road, Mumbai - 400 001
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Anees Fatma Rizvi
Mumbai Research Centre of the Central Marine Fisheries Research Institute Army
and Navy Building, 148 M. G. Road, Mumbai - 400 001
Abstract
Lepturacanthus savala (Cuvier, 1829) constitutes a minor fishery
contributing 23.3% to the total ribbonfish catch in Maharashtra. Based on
the length data obtained from shrimp trawlers and the traditionally operated
bag nets, age and growth of the species have been investigated from Mumbai
waters. Growth was studied by various computer-based methods incorporated
in FiSAT Programme. The growth parameters L. and K (on annual basis) by
Gulland-Holt plot were 683.3 mm and 0.87, respectively. As the seasonal
temperature variations in coastal waters of Mumbai are not pronounced,
the seasonally oscillating growth patterns by ELEFAN and Appledoorn's
method were not considered. Following the von Bertalanffy growth model,
the fish attains 399.8, 567.2 and 637.4 mm at the end of 1, 2 and 3 years,
respectively, and the lifespan of the fish is about 3.3 years.
Key words: Lepturacanthus savala, growth parameters, Mumbai waters
