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Laju Eksploitasi Sumberdaya Ikan Layang (Decapterus macrosoma) yang didaratkan di Pangkalan Pendaratan Ikan (PPI) Kota Sorong-Papua Barat

Jurnal Airaha Vol 6 No 1: Juni 2017
Publisher : Politeknik Kelautan dan Perikanan Sorong

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Abstract

The study related to the size and the exploitation rate of Shortfin scad are important in order to see the development condition of resource, especially on stock availibility for the management of its sustainability. This study was conducted in April - September 2013 at The Fish Landing Base (PPI) of Sorong, West Papua. This study aims to analyze the biology aspects of Shortfin scad based on itss length frequency, length-weight relationship, growth rate, mortality rate and exploitation rate of the catch.The primary data was acquired by the measurement of length and weight of Shortfin scad landed by purse seiner and from interview with the fishermen. The number Shortfin scad measured during reseach was 1.504 individuals which classified by the size of class interval, the data then analyzed to see the length-weight relationship and growth rate parameter analysis (LÂ¥and K) by using the program of FAO-ICLARM stock of the assessment tools II (FiSAT II). The results showed that the frequency and normal distribution of total length, midlength is dominated by class interval of 16,0 - 16,5 cm. The correlation between weight and length of the individual is not significantly differ with the value of b = 3,57 (positive allometriks). The length (Loo) and weight asymptotic (Loo) are 21,83 mm and 105,4 grams respectively, this is allegedly estimated that the age of Shortfin scad is approximately of 40 months or 3.3 years. The result of exploitation rate acquired from the comparison between the mortality rate of catch and total mortality (E = F / Z) is 0,35. This indicating that the exploitation rate of Shortfin scad (Decapterus macrosoma) in purse seine fisheries  at the time of research is still small due to smaller value compared to the optimal value when F = M or E = 0,5.

Kajian Sumberdaya Lobster yang didaratkan di Kota Sorong, Papua Barat

Jurnal Airaha Vol 5 No 1: Juni 2016
Publisher : Politeknik Kelautan dan Perikanan Sorong

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Abstract

This paper describes the state of lobster resource which landed in Sorong, including species, fishing season, and the analysis of weight-length relationship. The measurements were carried out by using randomized sampling in three (3) lobster shelter in Sorong from September - November 2015. Total of 1.316 lobster were observed during this research. The data observed were species, carapace length (mm), weight (g) and gender. The aspects of fishing technique, season, marketing and lobster types were analyzed by using descriptive analysis, whereas the measurement data was analyzed by using  linear allometrik model to see the weight-length relationship with the equation of W = a Lb . The result showed that there are six types of lobster which landed in Sorong namely are; Panulirus ornatus, P. versicolor, P. longipes, P homarus, P penicillatus, and Thenus orientalis. Fishing season was carried the whole year which consists of the peak season (June, November, December), middle season (March-July, September-October) and bad season (August, January, February). The whole lobster observed in this research have negative allometric growth pattern which indicates that the lobster are in growth stage.

Distribusi Frekuensi Ukuran Lebar Karapas dan Berat Kepiting Bakau (Scylla serrataforskal) dengan Alat Tangkap Bubu Lipat di Perairan Kabupaten Teluk Bintuni, Papua Barat

Jurnal Airaha Vol 4 No 2: Desember 2015
Publisher : Politeknik Kelautan dan Perikanan Sorong

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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.

Penangkapan Udang Penaeid Pasca Moratorium dan Pelarangan Kapal Trawl di Kabupaten Kaimana Propinsi Papau Barat

Jurnal Airaha Vol 6 No 2: Desember 2017
Publisher : Politeknik Kelautan dan Perikanan Sorong

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Abstract

Penelitian ini mendiskripsikan penangkapan udang penaeid di Kabupaten Kaimana setelah moratorium dan Pelarangan Penangkapan ikan dengan Pukat Hela/Pukat Tarik untuk memberi gambaran dalam perencanaan pengelolaan perikanan udang yang berkelanjutan.  Metode yang digunakan dalam pengumpulan data penelitian adalah metode survei lapangan dengan mengikuti langsung kegiatan operasi penangkapan oleh nelayan, pengukuran alat tangkap dan wawancara yang dilakukan mulai bulan September – November 2017 kemudian diolah dan di bahas secara deskriptif.  Penangkapan udang penaeid di Kabupaten Kaimana setelah moratorium dan Pelarangan Penangkapan ikan dengan Pukat Hela/Pukat Tarik dilakukan oleh nelayan skala kecil yang berasal dari daerah Arguni dan Nelayan Kaimana  menggunakan trammel net dan jaring udang monofilament dengan menggunakan perahu katinting dan longboat motor tempel. Penangkapan udang dengan jaring udang PA monofilament dilakukan pada perairan pesisir pantai pada kedalamanan 1 – 5 meter dan penangkapan udang dengan trammel net dilakukan pada perairan pesisir pantai pada kedalamanan 5 – 20 m. Umumnya dasar perairan lumpur berpasir dengan warna perairan keruh abu-abu, dan sepanjang pantai terdapat hutan mangrove dengan hasil tangkapan didominasi udang banana. Musim penangkapan  terjadi pada bulan November – April untuk Perairan Arguni, dan Juni – Oktober di Perairan Teluk Kaimana.