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Maturity and spawning of the anchovy, Thrissina baelama (Forskal) from the Andaman sea

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Relation http://eprints.cmfri.org.in/1575/
 
Title Maturity and spawning of the anchovy, Thrissina
baelama (Forskal) from the Andaman sea
 
Creator Marichamy, R
 
Subject Fishery biology
Anchoves
 
Description The occurrence of mature and spent specimens of Thrissina baelama in different size
groups indicated that the fish matures at an average length of 117 nun (TL). This is supported
by the results obtained from the study of ponderal index. While the immature
females showed a more or less direct relationship between 'Kn' values and feeding activity,
the mature females showed some deviations during certain months. The study of ova diameters
has shown that the species spawns twice in a year. Spawning appears to be of short
duration and the whole stock of mature ova measuring 0,57-0.84 nun in diameter are
extruded during the spawning. Two spawning seasons in a year were observed and these
coincided with the two monsoons, during July-August and late November-January.
Fecundity ranged between 1171 and 3356 ova in a fish size range of 110-127mm. Logarithmic
regressions described the relationship between fecundity and weight of fish and
fecundity and weight of ovary.
 
Publisher CMFRI/ICAR
 
Date 1970
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/1575/1/Article_22.pdf
Marichamy, R (1970) Maturity and spawning of the anchovy, Thrissina baelama (Forskal) from the Andaman sea. Indian Journal of Fisheries, 17 (1&2). pp. 179-187.