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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the author automatically agrees that the manuscript sent to Jurnal Airaha is a manuscript that has not been and will not be published in other similar media, unless the manuscript has been declared unable to be published in Jurnal Airaha.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
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Search results for , issue "Vol 5 No 2: Desember 2016" : 5 Documents clear
Pemodelan Solidifikasi untuk Proses Pembekuan Air dengan Geometri Cetakan Es Bujur Sangkar dan Persegi Panjang Andreas Pujianto; Prabowo Prabowo; Sigit Deddy P. Sidhi
Jurnal Airaha Vol 5 No 2: Desember 2016
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (468.252 KB) | DOI: 10.15578/ja.v5i2.28

Abstract

Numerical study is presented concerning transient solidification for water freezing process. The ice can produces 25 kg of ice block product is used as model in this study. 2D-simpllified geometry of ice can is modeled with square and rectangular shape which have different aspect ratio (H/L) 1 and 0.62 respectively. Both of shapes is compared one to another based on heat transfer and duration of solidification. Boundary conditions use isothermal temperature walls. Three walls (top, bottom, and right) have the same temperature values are -8℃ and the left wall temperature value is 0℃. Second order implicit URANS equations were solved with laminar model in numerical calculation. Most of internal heat energy (latent and sensible) from the water released to the walls which have lower temperature than other wall for 15 hours cooling process. This condition makes temperature of the liquid water decrease and phase change occured. The rectangular shape perform better than the square shape in heat transfer of internal heat energy from the water to the walls shape. The top and bottom wall from rectangular shape have greater value of heat transfer because their area are larger than other walls. Solidification process of the water in the rectangular shape faster 7,03% than square which showed by growth of water solid fraction in time of 15 hours cooling process.
Pengujian Kualitas Air di Perairan Pantai Negeri Morella sebagai Habitat Kima (Tridacna sp.) Ferliana Widyasari; Santoso Budi Widiarto; Gulam Arafat; Didik Setiadi; M. Nasrul Latulanit,; Arif Reza Fahlevi
Jurnal Airaha Vol 5 No 2: Desember 2016
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (817.33 KB) | DOI: 10.15578/ja.v5i2.29

Abstract

The aims of this study is to determine the water quality of Negeri Morella as one of Kima's habitat in Indonesia. Data analysis was done in laboratory and then paired with map according to coordinate sampling with Geographical Projection System using Datum WGS 1984. Based on the result of water quality test obtained, temperature value ranged from 26,9 to 27,4 0C, pH value ranged between 7,88 - 8.12, salinity values ranged from 33.06 to 33.54 ppt. The value of uniformity index (E) of phytoplankton obtained in Morella waters 0.6. The values obtained showed a moderate to high level of uniformity. Value Index dominance (D) phytoplankton obtained 0.233. This value indicates that the structure of the community found there are species that extreme dominate other species (close to 0). The abundance of zooplankton obtained 2,255 individuals / L. The type of zooplankton found in Negeri Morella is Candacia, Acartia sp, Euchaeta sp, Euchalanus sp, Corycaeus sp, macrosetella sp, Euterpina sp, Euchonchecia sp, Tortanus sp, Acrocalanus sp, Oitohona sp, Sagita sp, Ouklopleura, Larva Peneidae, Cirripedia, Echinodermata, Gastropoda dan Bivalvia.
Analisis Karakteristik Bakteri Probiotik Iman Supriatna; Intannurfemi B. Hismayasari; I Gusti Ayu Bidiadnyani; Moh. Sayuti; Ahmad Yani
Jurnal Airaha Vol 5 No 2: Desember 2016
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.916 KB) | DOI: 10.15578/ja.v5i2.30

Abstract

This study aimed to identify and analyze the characterictics of probiotic bacteria. The method used was descriptive method to perform biochemical analyze on the type of probiotic bacteria derived from banana tree. Biochemical analyazed include Gram stain, catalase, oxidation, OF paraffin, OF non paraffin, citrate, ornithin, lysine, urea, MEVP, TSIA oblique, TSIA upright, lactose and sucrose. Results of laboratory analysis showed that the bacteria isolated in blood agar have the morphological characteristic of rod-shaped (bacil), gram-positive, can produce the enzym catalase, but it can not oxidize, it can not produce the enzyme citrate, ornithine, urease, These bacteria are acidic nature, able to ferment lactose and sucrose, and capable of produced acetone from glucose fermentation.
Studi Eksperimen Pengaruh Penggunaan LPG sebagai Bahan Bakar pada Motor Bensin Pembakaran dalam 5,5 HP M. Zaki Latif A; Djoko Prasetyo; Akhmad Nurfauzi; Yasser Arafat; Muhfizar Muhfizar; Rohyadi Rohyadi; Anasri Anasri
Jurnal Airaha Vol 5 No 2: Desember 2016
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (447.816 KB) | DOI: 10.15578/ja.v5i2.31

Abstract

Cadangan Bahan Bakar Minyak (BBM) khususnya bensin semakin berkurang dan tidak dapat diperbarui lagi sementara kebutuhan semakin bertambah dan akan berdampak pada krisis energi. Penelitian ini mengkaji penggunaan Liquefied Petroleum Gas (LPG) sebagai bahan bakar alternatif pengganti BBM jenis bensin untuk mengoperasikan motor bensin siklus empat langkah. Penelitian ini dilakukan dengan memodifikasi pada bagian karburator menjadi saluran masuk untuk gas LPG. Percobaan yang dilakukan meliputi uji operasional, uji ketahanan operasi yang dilakukan hingga 100 jam operasi dengan memberikan variasi jumlah bahan bakar yang diberikan sebesar 3 Psi dan 4 Psi. Hasil penelitian ini menunjukkan bahwa LPG jenis campuran dapat digunakan sebagai bahan bakar alternatif pengganti BBM jenis bensin 4 tak.
Evaluasi Kesesuaian Lahan pada Kawasan Tambak Marjinal di Kecamatan Suppa Kabupaten Pinrang Ahmad Fahrizal
Jurnal Airaha Vol 5 No 2: Desember 2016
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (453.299 KB) | DOI: 10.15578/ja.v5i2.32

Abstract

This research aims to: Evaluate the suitabililty of land on which there are actual farms in marginal fishpond area at Wiringtasi, Tasiwalie, and Lotangsalo Villages, Suppa district, and Pinrang regency. Determining land suitability evaluation results based on the level of technology in the traditional cultivation, semi-intensive and intensive in marginal areas at the Wiringtasi, Tasiwalie, and Lotangsalo Villages, Suppa district, and Pinrang regency. This study uses primary and secondary data. Data collection is conducted by determining the research station randomized in the study site, water quality testing, both in-situ and laboratory testing. Methode of analysis using the analysis of Geoghrapich Information System (GIS). Land suitability classes are divided into classes S1 (Very appropriate), Class S2 (As appropriate), class S3 (Corresponding marginal) and the class N (Not applicable). The results of this study indicates that evaluation of the location of marginal fishpond land suitability study on approximately 46% of the rainy season leads to land suitability classes S3 and worth implementing technology-intensive cultivation, 44% of fishponds are int the S2 class by applying a semi-intensive aquaculture technologies, as weel as approximately 10% marginal fishponds in the S1 class with traditional aquaculture technologies. In dry season about 60% marginal fishponds research sites leads to the S3 or intensive classes, 35% of fishponds are in the class S2 or semi-intensive, and only about 5% of farms are in the class of S1 or traditional.

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