Record catch of rock perch, Epinephelus fasciatus by bottom trawling off Ratnagiri
A productive fishing ground for rock perch (Epinephelus fasciatus) was located off Ratnagiri between 17 degree 00' to 17 degree 10' N latitude and 72 degree 20' to 72 degree 30' E longitude, around a depth of 96m during November, 1983. An average catch of 2 ton/hr. was recorded. Length frequency studies of E. fasciatus indicate the probability of a nursery ground consisting of three brood stocks. Hydrographic studies of the ground revealed that the bottom water was oxygen deficient below a strong thermocline extending from 15-75 m depth with the recorded bottom temperature amounting to 20.5 degree C.
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| Main Authors: | , , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
1980
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| Subjects: | Fisheries, fishery surveys, trawling, fishery oceanography, fishing grounds, Epinephelus fasciatus, marine, Ratnagiri, Maharashtra, India, |
| Online Access: | http://hdl.handle.net/1834/31686 |
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| Summary: | A productive fishing ground for rock perch (Epinephelus fasciatus) was located off Ratnagiri between 17 degree 00' to 17 degree 10' N latitude and 72 degree 20' to 72 degree 30' E longitude, around a depth of 96m during November, 1983. An average catch of 2 ton/hr. was recorded. Length frequency studies of E. fasciatus indicate the probability of a nursery ground consisting of three brood stocks. Hydrographic studies of the ground revealed that the bottom water was oxygen deficient below a strong thermocline extending from 15-75 m depth with the recorded bottom temperature amounting to 20.5 degree C. |
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