Beevi, A Raihanathu (1998) Some aspects of reproductive biology of Gerres filamentosus Cuvier. Masters thesis, Central Institute of Fisheries Education.
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Abstract
The reproductive biology o f Gerres filamentosus cuvier was investigated in cochin from the samples collected from the trawl landings. Analysis of reproductive organs, maturity condition, fecundity and sex ratio was done during March - June 1998. Oocyte diameter was measured and histological characteristics of ovary were studied, This species remains in the estuarine environment and undergo migration to nearby coastal areas for the purpose o f breeding. Final stage of maturity is attained in the sea. The spawning occurs on the sea and the young ones migrate to estuarine area. The process of maturation is a continuous process and spawning take place within a prolonged period. The observed maturity stages of females were (i) immature (ii) inactive / resting (iii) Developing (active) (iv) mature (v) ripe and running (vi) spent and of males were (I) immature (ii) maturing and (iii) spent.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Reproductive biology; Gerres filamentosus Cuvier |
| Subjects: | Dissertations |
| Divisions: | CMFRI-Kochi > Mariculture Division Subject Area > CMFRI > CMFRI-Kochi > Mariculture Division CMFRI-Kochi > Mariculture Division Subject Area > CMFRI-Kochi > Mariculture Division |
| Depositing User: | Users 17220 not found. |
| Date Deposited: | 17 Sep 2016 04:38 |
| Last Modified: | 08 Apr 2022 08:46 |
| URI: | http://eprints.cmfri.org.in/id/eprint/11110 |
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