. Sulistiono
Fakultas Perikanan dan Ilmu Kelautan, IPB

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Journal : Jurnal Ilmu dan Teknologi Kelautan Tropis

ZOOPLANKTON COMMUNITY STRUCTURE AT MAJAKERTA ESTUARY AND ITS SURROUNDING WATERS, INDRAMAYU REGENCY, WEST JAVA PROVINCE

Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 9, No 1 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Bogor Agricultural University

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Abstract

Majakerta estuary and its surrounding waters have a high potential fishery resource which is commonly utilized by the community around the area. Fluctuation of physical and chemical parameters of the waters and fishery activities around the estuary can influence the existence of  zooplankton. This study was conducted from December 2014 to May 2015. Samples of the zooplankton were collected monthly at four stations (consisted of sea, river and estuary areas). Based on the study, zooplankton in the  Majakerta estuary and its surrounding waters consisted of six classes; i.e. Protozoa (11 genera), Crustaceae (4 genera, 1 nauplius stadia), and Rotifera (4 genera). A higher abundance was found at the sea (29025 ind./m3), while a lower  abundance was at the river and estuary (7147 ind./m3 dan 7582 ind./m3).  Based on the zooplankton diversity index, it can be inferred that the value was relatively low. There were two habitat groups, namely Station Group 1 (Station 1 and  2; river and estuary) and Station Group 2 (Station  3 and 4; sea) with influencing parameters such as  transparency, pH, and salinity.  Keywords: estuary, Majakerta, zooplankton, community structure

LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF YELLOWSTRIPE SCADS Selaroides leptolepis IN SUNDA STRAIT

Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 9, No 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Bogor Agricultural University

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Abstract

Yellowstripe scad Selaroides leptolepis is important product of small pelagic fishery resources in Java Sea. This fish also has high economic value and mostly captured by fisherman. The purpose of this study was to determine length weight relationship and condition factor of yellowstripe scads Selaroides leptolepis in Sunda Strait. Sampling was conducted from April to August 2015 with stratified random sampling method from catch landed at Pelabuhan Perikanan Pantai (PPP) Labuan, Banten. The results showed that 757 fish captured consists of 337 females and 420 males. The length weight relationship was W= 0.00004L2.7176 for female and W= 0.00003L2.7871 for male. The results indicated that the length weight relationship was highly correlated (r > 95%). the relative condition factors of fish varied from 1.0061-1.1926, of which females were generally in better condition than the males. Keywords: condition factor, length-weight relationship, yellowstripe scads, Sunda Strait