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INDONESIA
Buletin PSP
Published by Institut Pertanian Bogor
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Buletin PSP merupakan jurnal ilmiah dengan jadwal penerbitan 3 kali dalam satu tahun. Jurnal ini menyebarkan informasi ilmiah kepada para peneliti, akademisi, praktisi dan pemerhati mengenai pemanfaatan sumberdaya perikanan di Indonesia yang meliputi berbagai aspek seperti teknologi eksploitasi dan eksplorasi, perkapalan dan navigasi, pelabuhan perikanan, tingkah laku ikan, peraturan dan perundangan serta kebijakan dan pengelolaan sumberdaya perikanan secara umum. Naskah yang dimuat dalam buletin ini berasal dari penelitian atau ulasan staf pengajar/akademisi dari berbagai universitas di Indonesia, lembaga pemerintahan dan pemerhati permasalahan pengelolaan sumberdaya perikanan tangkap di Indonesia
Arjuna Subject : -
Articles 2 Documents
 1 
Search results for , issue "Vol. 15 No. 3 (2006): Buletin PSP" : 2 Documents clear
FORMASI VORTEX CURRENT PADA MODEL TERUMBU BUATAN Emil Reppie; Daniel R. Monintja; M. Fedi A. Sondita; Indra Jaya; Victor P.H. Nikijuluw
Buletin PSP Vol. 15 No. 3 (2006): Buletin PSP
Publisher : Institut Pertanian Bogor

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Abstract

The present of an artificial reef on sea floor may lead to the creation of a vortex current or wake zone, and eddies on the downstream side of the reef. This wake zone could attract fish by providing shelter; turbulence at the edge of wake zone would attract pelagic species; and upwelled current and sediments or nutrients might also benefit certain pelagic species. However, there presently are insufficient data to suggest a universally valid relationship between habitat enhancement and the flow-reef-sediment interaction. The creation of vortex current on the sea bottom is difficult to observe, so it is usually conducted in a scaled-down experiment. This study was to determine the vortex current formation on the reef model and observed the response of fish samples at the different current velocities. A cubic reef type (12.5 cm) was placed in a water circulating tank. The measurement was made by running black colored particles; and the boundaries of downstream flow were determine by tracking the movement of each particle. Vortex current was clearly observed behind the reef model at the current velocity of about 34.75 cm/sec; and the fish tend to concentrate at the center or behind the reef model; but current weakens or vortex current disappear, fish were scattered.
PERHITUNGAN BEBAN PANAS PADA PALKA KAPAL PURSE SEINE KM. DUTA MULIA DI PEKALONGAN Vita Rumanti K.; Budhi Hascaryo Iskandar
Buletin PSP Vol. 15 No. 3 (2006): Buletin PSP
Publisher : Institut Pertanian Bogor

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Abstract

The Indonesian fishermen usually use ice and salt as refrigerants to keep of catch before it is landed. The amount of refrigerants bringing in a trip usually only based on the prior experienced of senior fishermen without any exact estimation.This paper tries to analyze the amout of ice in a trip of a fishing vessel (KM. Duta Mulia) in Pekalongan by calculating heat receiving in fish holds. By this approximation, the minimum amout of ice that needed in a trip can be obtained. the fishermen usually bring 20.000 kg ice in a trip (40 day).One of the result shows the minimu amout of ice that needed for refrigerating 17.460 kg catch within 40 day is 13.180.692 kg. Based of this result, the fisherman might reduce the amout of ice that they usually bring in a trip.Keywords: fish hold capacity, insulations, and heat load

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