Gonado-somatic index and fecundity studies in two species of ribbon fishes, Trichiurus lepturus (Linnaeus, 1758) and Lepturacanthus savala (Cuvier, 1829) off Visakhapatnam, east coast of India

作者：Chakravarty Myla S^*; Pavani B; Ganesh P R C

来源：Indian Journal of Fisheries, 2013, 60(2): 163-165.

• Fecundity
• Gonado-somatic index
• Lepturacanthus savala
• Ribbon fishes
• Trichiurus lepturus
• Visakhapatnam coast

The gonado-somatic index (GSI) and fecundity of two species of ribbon fishes viz., Trichiurus lepturus and Lepturacanthus savala from Visakhapatnam coast were studied during June 2006 - May 2007. The GSI of males of T. lepturus was high in December 2006 (2.06 +/- 0.22) and low in May 2007 (0.05 +/- 0.09) whereas in females, it was high in February 2007 (1.54 +/- 3.68) and low in May 2007 (0.03 +/- 0.05). In L. savala, high GSI values in males and females were observed in July 2006 (1.94 +/- 0.07) and March 2007 (2.73 +/- 0.17) respectively, and low in September 2006 (0.03 +/- 0.02 in males and 0.07 +/- 0.05 in females). The fecundity varied from 10,395 to 3,20,712 in T lepturus and from 9,566 to 7,20,862 in L. savala. The relationship between fecundity to total length, body weight and ovary weight was linear and a similar trend was observed in the relationship of ovary length - total length and ovary weight - body weight.

• 出版日期2013-6