Abstrak Gillnet Selectivity to Hamapala Barb Fish Hamapala Macrolepidota Kuhl and Van Hasselt, 1823 in Lake Kerinci, Jambi
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,Samuel,Ni Komang Suryati,
The use or suitable mesh size in the gill net fishery is important as it creates ,1 possibility of protecting the fish, which has nor reached the minimum legal or commercial length. For lhis reason, study on the gill net selectivity of mesh size of Hmnpala barb cntch in Lake Kcrinci was carried out Irorn April to October 2013. The length dnll.1 of fish snmplcs were obtnincd from fishermen using various mesh sizes gill nets or 1.0 lo 4.5 inches. Gillnet selectivity was analysed based on estimation of optimum length (Lm) and selection factor (SF) conducted by using two gillnets with different mesh size (Mi and Mi+l). The results reveal that selection factor value (SF) wa.s 10.75 and a standard deviation value (S) was J.29. The optimum length offish in each mesh size or 1.0 inches, 1.5 inches, 1.75 inches, 2.0 inches. 2.5 inches, 3.0 inches, 3.5 inches. 4.0 inches and 4.5 inches were: I 0.75 cm, 16.13 cm. 18.81 cm, 21.5 cm. 26.88 cm. 32.25 cm. 37.63 cm. 43.0 cm nnd 48.38 cm respectively. Based on the selection factor value, it was found that gill nets with n mesh size of2.0-2.5 inches \VI.IS efficient gill nets to fish the Hampala barb in Lake Kcrinci. For fisheries management of Hampala barb (Hampala macrolcpidota) in Lake Kcrinci. the utilization of gill nets with rnesh sizes less than 2.0 inches should be limited.
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