Judul: Kajian Stok Sumber Daya Ikan Selar Kuning Selaroides leptolepis (Cuvier 1833) di Perairan Selat Sunda yang didaratkan di PPP Labuan, Banten
Abstrak: Yellowstripe Scad is one of pelagic fishes has the value of economically important fish catches and is dominant in PPP Labuan. Population of yellowstripe scade feared will decline arrest of conducted in continous. The purpose of this study was to assess the condition of yellowstripe scad in Sunda Strait that include of growth, mortality and exploitation rate. The study is done at PPP Labuan on Juny-October 2013. Fish samples observed reach a 752 with length range between 81-168 mm. Yellowstripe scad have allometric negative growth and a size of first maturity 157 mm. Parameter growth allegedly used method Ford Walford showed growth yellowstripe scade female faster than male with growth rate each of 0,42 and 0,36. The exploitation of yellowstripe scad has exceeded the optimum exploitation rate that yellowstripe scad in Sunda Strait has over exploited. Optimum efforts allegedly used Schaefer model showing of 1089 trip/year with maksimum sustainable yield (MSY) of 1977 tonnes/year and total allowable catch 1423 tonnes/year. Management that can be suggested is setting fishing effort and mesh size more than 6 cm.
Keyword: Yellowstripe scad., maksimum sustainable yield (MSY), xploitation, growth

Judul: Kajian Stok Sumber Daya Ikan Selar Kuning Caranx (Selaroides) leptolepis Cuvier dan Valenciennes yang Didaratkan di PPN Karangantu, Banten
Abstrak: Yellowstripe scad (Selaroides leptolepis) is an important economic value fish as one of target species by fishermen in PPN Karangantu. The purpose of this research is to assess the condition of yellowstipe scad stocks in the Gulf of Banten. The research was conducted in May to August 2012. Total number of fish taken during the research were 728 individuals. The results showed that the yellowstripe scad have isometric growth pattern. Size at first maturity of yellowstripe scad was 146 mm with peak spawning occurs in August. Yellowstripe scad exploitation rate has exceeded the optimum exploitation rate that yellowstripe scad in the Gulf of Banten allegedly already overfished. Management measure that can be suggested is through setting dogol mesh sizes and fishing season closure to achieve sustainable use of this resources
Keyword: 

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology