Reproductive Biology of Mahseer (Tor tambroides) from Atu Suasah and Lawe Melang Rivers in Aceh Province to Support Sustainable Fisheries Management
Reproductive Biology of Mahseer (Tor tambroides) from Atu Suasah and Lawe Melang Rivers in Aceh Province to Support Sustainable Fisheries Management
Teuku Fadlon Haser1*, Muh. Saleh Nurdin2, Eddy Supriyono3, Deni Radona4, Fauziah Azmi1 , Kukuh Nirmala3, Widanarni3, Tri Heru Prihadi4, Tatag Budiardi3 and Riris Yuli Valentine5
ABSTRACT
Information on reproductive biology is crucial in formulating policy to manage and conserve mahseer in Atu Suasah and Lawe Melang Rivers, Aceh, Indonesia. This research aimed to analyse and compare of mahseer biology including sex ratio, length and weight relationship, Fulton and relative condition factor and fecundity to estimate the reproductive potential of mahseer in these two rivers. The study was conducted from July to December 2019. Mahseer samples were obtained from fishermen who captured the fish using gillnet with mesh size 1.5-2.0 inch. The specimens collected were placed in a coolbox and transported to the Aquatic Resources Management Department of IPB University in Bogor for further analysis. Regression, chi-square, Mann Whitney test and t-test were applied to analyze reproductive biology parameters. There was no significant between-site difference in the reproductive parameters of mahseer from Atu Suasah and Lawe Melang Rivers. The sex ratio was balanced. The growth pattern was allometric negative and the Fulton condition remained stable over the six month study period. Mahseer in the 610-710 mm length class made the largest contribution to total egg production. Management and conservation of this fish should include the designation of a reservation area to mantain larval production as the source of recruits.
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April 2022
Vol. 54, Iss. 2, Pages 503-1000
