Judul: Analisis Hubungan Jumlah Kunjungan Kapal, Produksi, dan Harga Ikan di Pelabuhan Perikanan Nusantara Brondong
Abstrak: As one of the factors that influence the dynamics of capture fisheries, the influence of market activities conditions to the dynamics of fishing is still rarely studied. Based on this reason, this study will be conducted to analyze the influence of market activities particularly price fluctuations to the dynamics of capture fisheries and vise versa. To answer these objectives the study was conducted in Brondong Fishing Port. The data was collected by purposive sampling. The result of this study show that the fish distribution between producer and consumer was very simple. Fish landing actually didn’t affect to all fish price significantly. For red snapper and big eye, the number of fish landing negativelly affect to fish price, it mean if fish landing increase the fish price will decrease and vise versa. On the other hand the fish landing of scads, false travelly and yellowtail didn’t affect to fish price significantly. The other result of this study also show that fish price generally didn’t affect to fishing trip.
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Judul: Analisis Bioekonomi Ikan Kurisi (Nemipterus Bathybus Snyder, 1911) Yang Didaratkan Di Ppn Brondong, Lamongan
Abstrak: Pelabuhan Perikanan Nusantara (PPN) Brondong merupakan tempat pendaratan ikan yang berada di Lamongan, Jawa Timur. Tujuan penelitian ini adalah untuk mengkaji kondisi sumber daya ikan kurisi yang didaratkan di PPN Brondong berdasarkan aspek bioekonomi. Pada penelitian ini digunakan model surplus produksi dan metode Ford Walford. Hasil menunjukkan bahwa laju eksploitasi ikan kurisi 80,58% per tahun. Hasil analisis bioekonomi menunjukkan bahwa tingkat produksi optimal untuk sumber daya ikan kurisi adalah 104,86 ton/tahun; tingkat upaya optimal untuk pemanfaatan sumberdaya ikan kurisi 24 trip/tahun; dan rente ekonomi optimal untuk pemanfaatan sumber daya ikan kurisi mencapai Rp 3.407.057.824/tahun. Saat ini sumber daya ikan kurisi diindikasikan telah mengalami biological overfishing. Pengelolaan yang dapat disarankan adalah mengurangi hasil tangkapan dengan menerapkan pajak terhadap hasil tangkapan dan selektivitas alat tangkap.
Keyword: bioekonomi, ikan kurisi (Nemipterus japonicus), laju eksploitasi, PPN Brondong

Judul: Katalis Eterifikasi Gliserol Berbasis Poli–(asam stirena sulfonat) dari Limbah Styrofoam.
Abstrak: Styrofoam waste can be converted to poly–(sulfonate styrene acid) (PSSA) that can be used as catalyst. The objective of this research is to get PSSA that can catalyze the etherification of glycerol and benzyl alcohol. The styrofoam waste was converted to PSSA by reacting with H2SO4 98% (as sulfonation agent) and P2O5 (as sulfonation catalyst) at 40 °C for 6 hours. Characterizations of PSSA included functional groups, sulfonation levels, water swelling, and thermal stability. The yield of PSSA was 40-55%. The success of sulfonated polystyrene was shown by –SO3H group absorption at 1157.29 cm-1. Etherification of glycerol and benzyl alcohol using PSSA catalyst was conducted at 110 °C for 12 hours. The conversion in producing mono–benzyl ether glycerol was 8.10%, 1,3–dibenzyletherglycerol 2.60%, and dibenzyl ether 9.80%. Therefore, the PSSA can be used as etherification catalyst.
Keyword: benzyl alcohol, etherification, glycerol, polystyrene, PSSA