Record Details

Maturity and spawning in Otolithus ruber (Schn.) and Johnius dussumieri (C.& V.)

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Relation http://eprints.cmfri.org.in/1618/
 
Title Maturity and spawning in
Otolithus ruber (Schn.) and Johnius dussumieri (C.& V.)
 
Creator Devadoss, P
 
Subject Sciaenids
 
Description From the ova diameter measurements, it has been observed that O.ruber spawns
only once a year during July to October, and J. dussumieri spawns twice a year, first
between January and February and again between June and September. Indication of
sexual maturity is observed in the 170 mm size group in O. rafier and a majority (62.86%)
is mature at 200 mm. In J. dussumieri sexual maturity is manifest in the 140 mm
size group and a majority offish (51.85%) is mature at 160 mm. Fecundity in the size
range of 180-290 mm varies between 44,621 and 179,659 mature eggs in O. ruber, and in
J. dussumieri of size range 195-235 mm the number of mature eggs varies between 142,005
and 225,988.
 
Publisher CMFRI/ICAR
 
Date 1969
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/1618/1/Article_13.pdf
Devadoss, P (1969) Maturity and spawning in Otolithus ruber (Schn.) and Johnius dussumieri (C.& V.). Indian Journal of Fisheries, 16 (1&2). pp. 117-128.