1. Some Biological Aspects of Bigeye Scad, Selar crumenophthalmus from Bangaa Faru, Maldives
- Author
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Amir Shah Ruddin Md Sah, Shaza Adeeb, and Nik Fadzly
- Subjects
Reproductive Biology ,Fish market ,biology ,Gonado-somatic Index ,Male’ Maldives ,04 agricultural and veterinary sciences ,General Medicine ,Articles ,biology.organism_classification ,Fish measurement ,Body weight ,Size at Maturity ,General Biochemistry, Genetics and Molecular Biology ,Gonadosomatic Index ,Animal science ,Reproductive biology ,040102 fisheries ,Bigeye scad ,0401 agriculture, forestry, and fisheries ,Allometry ,Selar crumenophthalmus ,General Agricultural and Biological Sciences ,Scad - Abstract
In this paper, we studied some biological aspects of big eye scad (Selar crumenophthalmus) from Maldives. The fish sample was collected from the local fish market at Bangaa Faru, Male, Maldives. The length of the samples were ranged from 7.7 cm to 24.5 cm (mean value = 16.85 ± 2.82 cm) in fork length. Body weight ranged between 8 g to 255.6 g (mean value = 87.76 ± 40.41 g). The exponent values (b slope) of lengthweight relationship of S. crumenophthalmus are 2.9838 for females and 2.7687 for males; indicating negative allometric growth pattern for both sexes. Synchronous reproductive behaviour was observed in both sexes and a pronounced peak of Gonadosomatic index was observed in females in January 2013. It is estimated that length at first maturity (L50) for females is at 19.39 cm FL and for males at 21.76 cm FL. Our result also suggest that big eye scad have a reduced swimming capability, resulting the species to be easily caught. Careful planning and management should be implemented to prevent the big eye scad from being overfished.
- Published
- 2017