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.
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Abstract
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.
Item Type: | Article |
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Uncontrolled Keywords: | Maturity and spawning; Otolithus ruber; Johnlos dussumierl |
Subjects: | Demersal Fishes > Sciaenids |
Divisions: | CMFRI-Kochi > Marine Capture > Demersal Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Demersal Fisheries Division CMFRI-Kochi > Marine Capture > Demersal Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Demersal Fisheries Division |
Depositing User: | Dr. V Mohan |
Date Deposited: | 27 Jul 2010 08:56 |
Last Modified: | 17 Jan 2023 04:33 |
URI: | http://eprints.cmfri.org.in/id/eprint/1618 |
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