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Study on the biology of Johnieops voglerl (Sleeker) Of Bombay waters

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Relation http://eprints.cmfri.org.in/517/
 
Title Study on the biology of Johnieops voglerl (Sleeker)
Of Bombay waters
 
Creator Muthiah, C
 
Subject Demersal Fisheries
 
Description Johnieops vogleri in Bombay waters attains an average size of 158 mm, 240
mm and 290 mm at the end of 1, 2 and 3 years as shown by the length-frequency
method, and 164.4, 220.6 and 276.6 mm as indicated by the scales. The time of
annulus formation in the scales was during May to September which coincides
with low intensity of feeding, spawning activities of the fish and the prevailing
monsoon. Juveniles prefer crustaceans and, as they grow, show the piscivorous
tendency. Lower intensity of feeding is noticed during the spawning season. Fifty
percent of the fish mature at 159 mm in length. The relative condition of the fish
is correlated to the spawning activities. Fecundity varied from 26,028 to 581,298
eggs. The distribution of sexes observed during different months of the year is
not significant except during October and November. Among 130-179 mm size
groups, males preponderated, whereas females were more among 220-249 mm
size groups.
 
Publisher CMFRI/ICAR
 
Date 1982
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/517/1/Article_16.pdf
Muthiah, C (1982) Study on the biology of Johnieops voglerl (Sleeker) Of Bombay waters. Indian Journal of Fisheries, 29 (1&2). pp. 118-133.