Judul: Biologi Reproduksi Ikan Selar Kuning (Selaroides leptolepis Cuvier, 1833) di Blanakan Subang
Abstrak: Ikan selar kuning (Selaroides leptolepis) adalah salah satu jenis ikan pelagis yang berada di perairan pada kawasan berlumpur dan juga dapat ditemukan di daerah karang. Tujuan penelitian ini adalah untuk mendeskripsikan aspek reproduksi ikan selar kuning (Selaroides leptolepis) yang meliputi pola pemijahan, faktor kondisi, nisbah kelamin, tingkat kematangan gonad, indeks kematangan gonad, dan diameter telur berdasarkan data yang didaratkan di TPI Blanakan Subang. Penelitian ini dilakukan pada bulan November 2016 sampai dengan Februari 2017. Metode pengambilan contoh di lapang menggunakan metode penarikan contoh acak berlapis. Jumlah keseluruhan ikan selar kuning yang diamati 548 ekor (322 jantan dan 226 betina). Berdasarkan uji chi-square, rasio kelamin ikan selar kuning di perairan Blanakan Subang 1:0,7. Kisaran nilai faktor kondisi ikan jantan 1,0026-1,0093 dan betina 1,0020-1,0158. Tipe pemijahan ikan selar kuning adalah total spawner. Fekunditas ikan selar kuning berkisar antara 3 184-12 994 butir yang menunjukkan potensi reproduksi ikan selar kuning dalam keadaan sedang. Pembatasan penangkapan saat musim pemijahan pada bulan Desember-Februari untuk menjaga ketersediaan stok.
Keyword: Blanakan Subang, ikan selar kuning, reproduksi

Judul: Biologi Reproduksi Ikan Selar Kuning (Selaroides leptolepis Cuvier, 1833) di Perairan Selat Sunda.
Abstrak: Permintaan ikan selar kuning yang sangat tinggi mengakibatkan terjadinya kegiatan penangkapan yang berlebihan. Setiap tahunnya ikan selar kuning mengalami penurunan ukuran bobot dan panjang. Perlu dilakukan strategi pengelolaan untuk mencegah permasalahan tersebut dengan mendapatkan informasi dari biologi reproduksi ikan selar kuning. Penelitian ini dilakukan di PPP Labuan pada bulan April-Agustus 2015. Pengambilan contoh di lapang dengan menggunakan metode penarikan contoh acak berlapis. Jumlah keseluruhan ikan selar kuning yang diamati 840 ekor dengan jumlah jantan 518 ekor dan betina 322 ekor. Berdasarkan uji Chi-square, rasio kelamin ikan selar kuning di perairan Selat Sunda tidak seimbang. Ukuran pertama kali matang gonad ikan selar kuning jantan 167 mm dan betina 147 mm. Kisaran nilai faktor kondisi ikan jantan 1,0073-1,1786 dan betina 1,0052-1,2130. Musim pemijahan ikan selar kuning terjadi pada bulan Mei. Tipe pemijahan ikan selar kuning adalah partial spawning. Fekunditas ikan selar kuning berkisar antara 2 930-24 907 butir.
Keyword: Ikan selar kuning (Selaroides leptolepis), reproduksi, Selat Sunda

Judul: Product developmentof cassava and corn hominy based biodegradable foam
Abstrak: Starch based foam is a packaging material made from renewable resources which are very prospective to substitute synthetic polystyrene foam. Tapioca is one of potential materials for starch based foam production due to availability and cheap price compared to other starch. Unfortunately, the foam produced only with starch is brittle, poor mechanical properties and highly sensitive to moisture. Fiber reinforcement and blending with synthetic polymer and hydrophobic materials are the way to improve foam’s properties. Corn hominy, a by product of corn dry milling industry, is a potential source to be used as fiber reinforcement due to its composition that still contained high fiber, starch, protein and fat that needed for producing starch-based foam. The objective of this research wasto develop biodegradable foam made from tapioca and corn hominy. Four steps formulation was conducted to get the best characteristics of biodegradable foam. Starch, corn hominy, modified starch, PVOH and other dry materials were mixed with various concentration. Water, plasticizer and other liquid materials were added to get total solid 50-60% and then baked with thermopressing machine at 150-1700C for 2-3 minutes. The results showed that, addition of corn hominy increased hydrophobicity and biodegradability of biofoam. On the other hand, increasing corn hominy proportion also decreased mechanical properties and brightness of biofoam and increased density. Addition of PVOHincreasedhydrophobicity and mechanical properties of biofoam but decrease biodegradability and increased density. Addition of hydrophobic starch did not make satisfying improvement on hydrophobicity or mechanical properties of biofoam, but decreased biodegradability of biofoam. Starch acetate and sizing agentaddition could increase hydrophobicity, marked by increasing of contact angle value. Meanwhile, addition of plasticizer not only improved viscoelasticity of biofoam but also increased biofoam’s hydrophobicity. Utilization of tapioca and corn hominy as biodegradable materials could increase value added of tapioca by 14,33% meanwhile for corn hominy almost71,44%.
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