Judul: Studi Tentang Perikanan Pancing Ranggung di Tanjung Pasir, Kabupaten Tanggerang
Abstrak: Penelitian ini telah dilakukan di Tanjung Pasir, Kabupaten Tangerang pada bulan Mei hingga Juli 1991. Tujuan penelitian adalah untuk mengetahui keadaan perikanan pancing ranggung di Tanjung Pasir, Kabupaten Tangerang. Selain itu juga untuk membandingkan hasil tangkapan pancing ranggung yang menggunakan dua mata pancing dengan yang menggunakan empat mata pancing. Metode penelitian ini menggunakan eksperimental fishing dengan mengikuti trip penangkapan. Pengamatan dilakukan untuk masing-masing unit pancing ranggung yang menggunakan dua mata pancing dan yang menggunakan empat mata pancing. Data diperoleh dengan jalan mengoperasikan kedua jenis pancing tersebut secara bersama-sama. Data yang terkumpul kemudian dianalisis dengan uji kenormalan Lilliefors. Analisis selanjutnya dengan metode statistik parametrik yaitu menggunakan rancangan acak lengkap. Hasil analisis menunjukkan bahwa hasil tangkapan pancing ranggung yang menggunakan empat mata pancing tidak berbeda nyata dengan pancing ranggung yang menggunakan dua mata pancing. Hal tersebut diduga akibat pancing ranggung yang menggunakan empat mata pancing sering terbelit antar tali cabangnya....
Keyword: 

Judul: Kelayakan Usaha Pancing Rawai di Pangkalan Pendaratan Ikan Tanjung Pasir Kabupaten Tangerang
Abstrak: The development of small scale fisheries in Indonesia is not quite grow because of difficult to getting loan. PPI Tanjung Pasir is dominated by small scale long line fisheries. The objective of this research are to describe the fishing unit, productivity and financial feasibility. This research used descriptive method. The result showed that long liner was 3-4 GT wood boat, with lenght: 7.5-10 m, width: 2-3 m, and draft 1-2 m. There were 3 fishermen in one fishing unit. The lenght of long line is 3 000-4 000 m, aproximately the number of hook were 600-1 000. Composition of long line catches were dominated by white snapper (Lates carcarifer). Productivity per trip was 28.09 kg/trip/year, boat productivity was 1.899 ton/GT/year, gear productivity (hook rate) was 0.05 fish/trip/boat, and fisherman productivity was 9.36 kg/man/trip. Based on investment analysis, R/C ratio was 1.11, payback period was 2.36 year, ROI was 42%, NPV Rp30 253 594, IRR 51.30% and Net B/C ratio was 2.01. Refers to productivity and financial analysis, Tanjung Pasir long line business is feasible to be continued and expanded.
Keyword: Bogor Agricultural University (IPB), Tanjung Pasir, productivity, long line, feasibility business

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
Keyword: