Judul: Food Habit dan Reproductive Biology of Yellowstripe Scad (Selaroides leptolepis) and Round Scad (Decapterus russelli) in the Waters of the Sunda Strait
Abstrak: Ikan selar kuning (Selaroides leptolepis) dan ikan layang (Decapterus russelli) merupakan hasil penting dari sumberdaya perikanan pelagis kecil di Laut Jawa. Ikan ini mempunyai nilai ekonomis penting sehingga banyak ditangkap oleh nelayan. Tujuan dari penelitian ini adalah menganalisis kebiasaan makanan dan reproduksi yang mencakup jenis makanan, nisbah kelamin, tingkat kematangan gonad (TKG), ukuran pertama kali matang gonad, indeks kematangan gonad (IKG). fekunditas, dan sebaran diameter telur ikan selar kuning dan ikan layang. Metode penelitian yang dilakukan adalah metode survei lapang. Ikan contoh dikumpulkan dengan metode penarikan contoh acak berlapis (PCAB) yang dilakukan di Pelabuhan Perikanan Pantai (PPP) Labuan Banten pada bulan April-Agustus 2015 dengan interval waktu 30 hari., Yellowstripe scad (Selaroides leptolepis) and round scad (Decapterus russelli) are important product of small pelagic fishery resources in Java Sea. This fishes also have high economic value and mostly captured by fisherman. Objective of this study is to examine food habit and reproductive biology of the yellowstripe sead and round scad covered sex ratio, gonad maturity stage (GMS). length at first maturity. gonado somatic index (GSI), fecundity and egg diameter distribution. The research method was survey method. Fishes were collected using by stratified random sampling method conducted in PPP Labuan Banten from April to August 2015.
Keyword: food habit, reproductive biology, Selaroides leptolepis, Decapterus russelli

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: Synthesis and Characterization of Hydroxy-apatite with Controlled Pore
Abstrak: implant materials. Porosity hydroxyapatite can be formed using porogen hydrogen peroxide (H2O2), polyvinyl alcohol (PVA), ethylene glycol (EG), or polyethylene glycol (PEG). The pore size can be controlled by setting the concentration of porogen. The results of the characterization using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) showed that the addition of porogen phase does not change the structure of hydroxyapatite, but changing the crystallite size and crystal strain. Increasing the concentration of porogen to 25% can increase the strain, crystallite size, and pore size. The degree of crystallinity of hydroxyapatite formation 0.75-0.83. Hydroxyapatite formed from 0.3 to 1.2 μm pore size, the largest pore is formed on the addition of polyethylene glycol porogen. Hydroxyapatite synthesized by addition and without addition of porogen does not contain heavy metals lead, cadmium, mercury, and arsenic
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