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YENI HURRIYANI
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science

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ESTIMATION OF ORANGE MUD CRAB (Scylla olivacea) STOCKS AS THE CATCH YIELD OF FISHERMEN OF KUBU VILLAGE, KUBU RAYA DISTRICT, WEST BORNEO Arif Triadma; INPURWANTO WI; YENI HURRIYANI
Jurnal Sains Pertanian Equator Vol 8, No 3 (2019)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v8i3.35343

Abstract

ABSTRACKInformation about orange mud crab (Scylla olivacea) stocks in West Kalimantan is still very minimal, especially in Kubu Village, Kubu Sub-District. The purpose of this study was to estimate the stocks of Scylla olivacea from the catch yield of fishermen of Kubu Village, Kubu Sub-District, Kubu Raya District, West Borneo Province. The method used for sampling was the Census method in which the samples to be observed were all the catches of orange mud crabs in 2 (two) collectors in Kubu Village. Sampling of S. olivacea was carried out at 1-time interval in 2 weeks for 4 (four) months. This study was conducted in September-December 2018. Based on the results of the study, S. olivacea which was caught during the study were 341 crabs, in which male crabs were caught of 255 crabs and female crabs of 86 crabs. The relationship of width and weight of male S. olivacea was negative allometric, female S. olivacea was isometric and the total male and female was isometric. The asymptotic width (L∞) of male S. olivacea was 258 mm, female was 175 mm, the total was 253.3 mm, the growth coefficient (K) of male was 0.15 per year, female was 0.21 per year, the total was 0.15 per year. The mortality of S. olivacea was mostly caused by natural mortality (M) with a value of 0.2355 per year. The rate of exploitation of S. olivacea shows that the catches carried out was still below optimal with the exploitation value (E) of 0.1673.Keyword : Stock estimation, Scylla olivacea, Width and weight relationship.
Diversity of Fishermen Catches in Fishing Port of Sungai Raya Kepulauan in Bengkayang District Agus Agus; inpurwanto inpurwanto; yeni hurriyani
Jurnal Sains Pertanian Equator Vol 9, No 4 (2020)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v9i4.42235

Abstract

Sungai Raya Kepulauan Sub-district is a coastal area located on the north coast of West Kalimantan bordered by the South China Sea and Natuna Sea. This sub-district has three Fishing Port namely, TPI Sungai Keran, TPI Sungai Raya, and TPI Karimunting. This research aims to identify the diversity index, uniformity index, dominance index, and composition of fishermen catches in TPI Sungai Raya Kepulauan, Bengkayang District. It used census method for the determination of collectors. The research was conducted in October - January 2020. The research found that the catches in TPI Sungai Raya Kepulauan covered of 34 fish species consisting of 17 families, namely Aridae, Balistidae, Caesionidae, Clupeidae, Dasyatidae, Gymnuridae, Haemulidae, Lethridae, Lethridae , Lutjanidae, Mullidae, Nemipteridae, Polynemidae, Rachycentridae, Scombridae, Serranidae, and Sphyraenidae with a total of 4991 fishes. The composition of fish species in the three stations was the highest, namely mackerel fish (Rastrelliger kanagurta) 10.82%, kerisi fish (Nemipterus furcocus) 9.84% and geronggong  fish (Megalasfis cordyla) 8.76%.The diversity index (H’) covered moderate to high categories with a value of 2.947 – 3.079, while the uniformity index value ranges from 0.850 –0.886 in the high category. The last, the dominance index (C) value ranges from 0.059 – 0.069 in the low category.
Co-Authors Agus Agus Arif Triadma Inpurwanto Inpurwanto Inpurwanto Wi