POPULATION DYNAMICS OF LUTJANUS LINEOLATUS (FAMILY: LUTJANIDAE) FROM THE BITTER LAKES, SUEZ CANAL, EGYPT | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 5, Volume 10, Issue 2, April 2006, Page 79-92 PDF (985.63 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.2006.1850 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Amal Amin | ||||
| National Institute of Oceanography and Fisheries, Suez, Egypt | ||||
| Abstract | ||||
| Atotal of 837 Lutjanus limolatits was collected monthly from Bitter Lakes during October 2002 through October 2003 to study age and growth, mortality, relative yield per recruit and relative biomass per recruit Age was determined from otolith's reading and the results showed that the maximum life span of L. iineolaius is 3 years. The growth parameters were estimated as K = 0.60 year-1, Loo = 22.92 cm TL and to = -0.27 yr. The annual rates of total, natural, fishing mortality and exploitation rate were calculated as 2,5, 0.6, 1.9 and 0.76 year-1 respectively. The high level of both fishing mortality and exploitation rate indicated the high level of exploitation of this species. The length at first capture Lc was 31.1 cm TL.The relative yield per recruit analysis showed that the stock of L. lineolatus is over-fished. To maintain this valuable fish resource, the present fishing effort | ||||
| Keywords | ||||
| Suez Canal; Bitter Lakes; Lutjanus Imeoiatus^ age and growth; mortality and exploitation rates; relative yield per recruit; relative biomass per recruit | ||||
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