Seychelles tuna bulletin : fourth quarter 1988
The number of purse seiners active in the Western Indian Ocean during the fourth quarter of 1988 increased gradually from 45 in October to 48 in December. This represents an increase over the same period last year, when 41 vessels were present. There was also a considerable improvement in the performance of the fishing fleet compared to the two previous years. Catch rates for 1988 were estimated at 29 MT/day compared to 18 MT/day in 1987 and 15 MT/day in 1986. The proportion of yellow fin in the catch moreover increased from 38% in 1987 to 47% in 1988 with a corresponding decline in the percentage of skipjack, from 61 to 52 percent. The fishing pattern during 1988 however followed an almost similar trend as previous years with yellow fin catch rates improving from January to March followed by a decline in April. This year however, unlike previous ones, there was an unexpected increase in yellow fin catch rates in June due to vessels moving north from Mozambique Channel early. From June the proportion of yellow fin decreased slightly until November when it recovered again. As in the preceding years. As determined from seiner logbooks received by the 31st of December 1988 the cumulative catch by purse seiners in the Western Indian Ocean for 1988, now stands at 216,227 tones. The estimated total catch for 1988 should be around 230,000 tones compared to 160,000 tones in 1987.
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| Format: | Other biblioteca |
| Language: | English |
| Published: |
1988
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| Subjects: | Purse seiners, Tuna fisheries, |
| Online Access: | http://hdl.handle.net/1834/5198 |
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