Life history (length-weight relationship, conditional factors, reproductive aspects), stomach contents and nursery ground of stingray in the Arafura Sea

Abstract Stingrays are a resource that is vulnerable to overfishing and habitat degradation. The research was conducted obtain data information still lacking much needed for the utilization protection of stingrays, including; life history, stomach contents, nursery ground. study in October - November 2018 by exploratory, including taking stingrays trawling measuring conditions with Conductivity, Temperature, Depth. results showed total 744 individuals, weighing 2,986.6 kg 24 species. Individual have width disc range 9-134 cm weight 20-67000 g. growth pattern generally allometric, except Gymnura zonura . average value relative condition factors >1, Aetomylaeus maculatus Brevitrygon walga an unbalanced sex ratio, gonads consist 43% adolescent 57% mature, number neonates 1-6 /parent. correlation between clasper length positive, Hemitrygon longicauda Of contents all stingray species, 64 % shrimp, Himantura leoparda which various prey. area east Aru west Papua locations used as grounds most stingrays. Nursery Stingray shallow coastal areas low oxygen, eutrophic high turbidity. this expected be basis managing resources Arafura Sea further recommended carried out four different seasons.