Abstract
Stingray fish is a demersal fish commodity in Indonesian waters which decreasing in catch. The purpose of this research is to know the potential of sustainable and some aspects of Stingray fish biology by using the Maximum Sustainable Yield (MSY) indicator as the fishing status in Java Sea. Data of catch and effort taken from production data of year 2006-2015 and primary data to know some aspect of biology is taken at TPI port of Cirebon and Tegal Specification data of fish catching tools Pari obtained from fisherman interview. The data of the catch in the analysis using Surplus Production Method (Schaefer) and observed aspects of stingray biology include: sex ratio and distribution of length of Stingray fish. The results showed the MSY value of Stingray fish was 894.275 tons / year and fMSY value of 34.716 ships / year. The sex ratio of male Stingray fish with female Stingray fish is still balanced, which is 1: 1.34 and the size of long frequency entered into the category of immature fish gonad and fish which first ripe gonad, which ranges between length 16-22 cm both male fish or female. Based on the research results can be concluded that Stingray fish catchment in Java sea still in sustainable condition.
Highlights
Indonesia’s potential of resource is fast, expecially its potential in fisheries
The results showed the Maximum Sustainable Yield (MSY) value of Stingray fish was 894.275 tons / year and fMSY value of 34.716 ships / year
The sex ratio of male Stingray fish with female Stingray fish is still balanced, which is 1: 1.34 and the size of long frequency entered into the category of immature fish gonad and fish which first ripe gonad, which ranges between length 16-22 cm both male fish or female
Summary
Indonesia’s potential of resource is fast, expecially its potential in fisheries. The total diversity of fish strengtened by 5,8 million km of seawater and 81.000 km coastal length [1,2].Stingray fish is Indonesian catch fisheries commodity, stingray is demersal fish that included in Chondrichthyes class [3]. Indonesia’s potential of resource is fast, expecially its potential in fisheries. The total diversity of fish strengtened by 5,8 million km of seawater and 81.000 km coastal length [1,2]. Stingray fish is Indonesian catch fisheries commodity, stingray is demersal fish that included in Chondrichthyes class [3]. Java Sea demersal fish potential is 431.000 tons/year with and exploitation value of 56%. 13% of total catch fisheries [4]. Stingray became main catch of fishermans and have high economical value. It’s meat and fin become foods and it’s skin become fashion items [5]. Because of high demand, overfishing is occuring and stingray fish stock is declining
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