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The Indian mackerel; V Population

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Relation http://eprints.cmfri.org.in/617/
 
Title The Indian mackerel; V Population
 
Creator Banerji, S K
 
Subject Mackerel
 
Description Pradhan (1956) examining the mackerel landings at Karwar from 1948-49 to 1952-53 concluded
that the sex composition of the commercial catches during the fishing season was roughly as 45% male
and 55% female. Similar qualitative statements regarding sex distribution of commercial landings at
various specific centres are available in the annual reports of the Central Marine Fisheries Research Institute.
In 1965-66, the sex ratio studies at Cannanore indicated that the proportion of males was slightly
higher than females (53.18:46.32) in the adult population. The predominance of males was
also seen in Juveniles (modal size 135 mm). In the medium sized fish (modal size 205 mm) which
contributed to the bulk of the catch, the sex-ratio was in the reverse order (40.7M;59.3F). In the same
year, at Cochin females dominated the catches except for April and September (Central Marine
Fisheries Research Institute Annual Report 1966). In 1966-67 season, the sex ratio during the
fishing season was found to vary though in some centres was almost equal (Cenrtal Marine Fisheries
Research Institute Annual Report 1967). In the first half of 1967-68 season, the sex-ratio of
a sample analysed at Karwar showed that females were more numerous. At Mangalore, males
were more numerous in the aggregate. Sexes were almost equally represented at Cochin and Cannanore.
At Vizhinjam males were predominant in March. In the second half of the year, at Cannanore
the females increased to more than twice that of males (Central Marine Fisheries Research Institute,
Annual Report 1968). The above excerpts will show that there is no uniformity in the sex distribution in the
commercial catches either among various centres or between various fishing seasons. In the absence of a
 
Publisher CMFRI
 
Contributor Nair, R V
 
Date 1970
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/617/1/Bulletin_24-Banerji.pdf
Banerji, S K (1970) The Indian mackerel; V Population. In: CMFRI Bulletin No.24, The Indian Mackerel. CMFRI, Mandapam Camp, pp. 41-54.