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Jurnal Airaha
Published by Politeknik Kelautan dan Perikanan Sorong
ISSN : 21307163     EISSN : 26219638     DOI : https://doi.org/10.15578/ja.
Core Subject : Humanities, Science, Education, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemistry Education Engineering Social Sciences
Jurnal Airaha is published 2 (two) times a year (June, and December) with ISSN Number 2301-7163 and E-ISSN Number 2621-9638. Jurnal Airaha contains articles from original research and peeling (review) Journal of Research Related to The Disciplines of Fishing Technology, Fishery Machinery, Aquaculture, Coastal Resource Management and Fishery Processing, Marine Tourism, Processing and Storage of Catches. By submitting the manuscript to Jurnal Airaha, the author automatically agrees that the manuscript sent to Jurnal Airaha is a manuscript that has not been and will not be published in other similar media, unless the manuscript has been declared unable to be published in Jurnal Airaha.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 4 No 2: Desember 2015" : 5 Documents clear
Heat Transfer Effect of Reheater Tube Materials Steam Power Plant M Prihajatno
Jurnal Airaha Vol 4 No 2: Desember 2015
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

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Abstract

Reheater tube is an installation for steam reheating output of turbine to work encouraging. Therefore need be heated again of steam to increase pressure and temperature so be used for drive turbine blades. Reheater tube last work for 54,000 hours. The method used of study to mechanical test and visual and microstructure observations. It is also used iterative method for temperature loads calculation occur in reheater tube. The result of iterative calculation obtained wall tube temperature T1 = 608.43 °C, T2 = 618.18 °C, T3 = 655.74 °C and convection coefficient = 3.604,37 W/m2.oC. Based on mechanical strength of materials tube is 481.85 MPa, this is still above the minimum standards of material SA-213 T22 so that decrease was not significant. Visual observation accour oxidation corrosion and visible cavity in micro structure. Some spheroidized and decarburizing phenomena are also seen in microstructure materials. The phenomenon is due to high temperature and pressure at the long term.
Analisis Konsentrasi DNA dan Prediksi Protein Coral Hamid Hamid; Iman Supriatna; Endang Gunaisah; Muhsuryono Muhsuryono; Ismail Ismail; Abdul Gofir
Jurnal Airaha Vol 4 No 2: Desember 2015
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

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Abstract

This study aimed to determine the concentration of DNA and proteins Coral predictions based on data from GenBank. DNA isolation technique Pocillopora sp. using tissue and blood DNeasy Kit (Qiagen). DNA concentrations were analyzed using a spectrophotometer and Corl protein prediction by comparing the primers used by the data GenBank (NCBI). DNA concentration of each sample varies between 5.0 ng/µl-20.8 ng/µl in the first purification and between 3.0 ng/µl - 8 ng/µl, where the highest concentration of DNA present in the sample HC2. DNA concentration and purity of samples obtained at HC2 and HC3. Prediction of protein based on data GeneBank is homologous with a NADH dehydrogenase in Coralliumkonojoi
Komposisi Hasil Tangkapan Ikan dan Tingkat Keramahan Lingkungan Alat Tangkap Sero di Desa Tapulaga, Sulawesi Tenggara Rita Bubun; Fajriah Fajriah; Nelly Marlisa
Jurnal Airaha Vol 4 No 2: Desember 2015
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

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Abstract

The principle development fishing in substance lead to the use of resources to optimal and rational for fishermen society welfare, without causing damage resources, environmental and sustaineble fisheries. The cath that fesiable to get on operation "sero" and analyzed levels of sustainable on a get "sero" in the Tapulaga Soropia Subdistrict Southeast Sulawesi. Research method is using the method survey. analysis data is descriptive kuantitatif to determine a measure of lenght fish and the level sustainable of "sero". the research result show that (1) tehe composition of the catch based on type consisting of 17 spesies. Domination species is Loligo spp in 24%. The composition of lenght fish in 52%, dominated by lenght fish of 10 - 19 cm; (2) the level of sustainable by "sero" is the value of 25. Basedon the values then "sero" be categorized as a sustainable fishing gear.
Distribusi Frekuensi Ukuran Lebar Karapas dan Berat Kepiting Bakau (Scylla serrataforskal) dengan Alat Tangkap Bubu Lipat di Perairan Kabupaten Teluk Bintuni, Papua Barat Franklyn Hoek; Abudarda Razak; Misbah Sururi; Maximus Yampapi
Jurnal Airaha Vol 4 No 2: Desember 2015
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

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Abstract

The aim of research was to analyze the distribution of width-weight carapaces relationship, and growth pattern mud crab (Scylla serrata) are expected for the management. The object are mud crab in Distrik Bintuni West-Papua waters during three month. Analysis with SPSS programme version 19th. Relationship of width-weight carapace used by regression statistic. The result shown frequency distribution width-weight relationship of males and females were not significant. The confidence limit of frequency distribution union width-carapace males and females were 12.5 to 12.3 cm, while the weight male crab 496.7 to 520.1 g, and weight of female crab 366,2 to 381 g. Males crab have allometriks positive growth pattern (b > 3), and female crabs have allometriks negative ( b <3). The female mud crab (Scylla serrata) for three month (July, August, September) was indicated growning of the maturity process.
Analisa Kelayakan Parameter Kualitas Kimia Air di Perairan Pantai Sorong Ahmad Yani
Jurnal Airaha Vol 4 No 2: Desember 2015
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

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Abstract

Sorong coastal waters with diverse human activities is changes water quality. The environmental quality of coastal waters in Sorong is measurement of chemical water quality parameters. This study aims to determine the chemical water quality coastal waters in worthiness standards for fisheries activity. The measurement was November 2013 to January 2014 in located of coastal waters Sorong-West Papua. Analysis by descriptive and tabular form at each observation station Based on the measurements obtained at station. The measurements has be levels of dissolved Oxygen (02), free Carbon-dioksid, (pH), Ammonia, Nitrate, Orthophosphate, Biological Oxygen Demand (BOD5), and Dissolved Organic Matter (BOT) in coastal waters Sorong in reasonable range for fisheries and be tolerated by aquatic organisms.

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