. Sulistiono
Fakultas Perikanan dan Ilmu Kelautan, IPB

Published : 25 Documents
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Journal : Jurnal Ilmu Pertanian Indonesia

Kebiasaan makanan ikan lidah (Cynoglossus lingua) di perairan ujung pangkah, gresik, jawa timur

Jurnal Ilmu Pertanian Indonesia Vol 14, No 3 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

One of an fishery commodity in Ujung Pangkah is flatfish ( Cynoglossus lingua). This study was conducted in Ujung Pangkah waters, Gresik, East Java using fish samples (N=94 males, N=108 females) collected during August 2005 to January 2006. The Study aimed to investigate food habits of the flat fish caught in the area. Research result shows that shrimps was a main food, while crab and Bivalva were complementary food both for male and female fish. Based on index of stomach contents, the index was higher during September for male, and August for female fish. Kinds and percentage of stomach contents varied according to size both for male and female. Therefore, the main food of the male and female fish was simmilar (e.g. shrimps) According to simmilariy index, food habit of the male and female fish is simmilar.

Strategi Pemanfaatan Perairan Pesisir untuk Budi Daya Kerang Hijau (Perna viridis L.) di Kuala Langsa, Provinsi Aceh

Jurnal Ilmu Pertanian Indonesia Vol 22, No 3 (2017): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Development of green mussel culture currently still requires the determination of strategies in accordance with the potential and conditions of coastal areas as well as management culture system. This research aims to formulate strategies of the utilization coastal waters for green mussel culture in coastal Kuala Langsa, Aceh Province. Data collected to identify internal factors and external, including primary and secondary data, while the determination of respondents using purposive sampling method. SWOT Analysis is used for strategy determined while prioritizing strategy using Quantitative Strategies Planning Matrix (QSPM) analysis. Based on SWOT analysis, identified 9 strength factors, 4 weakness factors, 6 opportunity factors, and 5 threat factors and 8 strategies, then the priority of strategies is determined with QSPM analysis, the sequence of the most important priority is: counseling and training to improve the management of green mussel culture for coastal communities (WO1); green mussel culture can be integrated with the involvement of coastal communities as stakeholders (WO2); optimization of coastal waters for green mussel culture is supported by ecology conditions (SO1); green mussel culture can be done with longline method with a density of 20 individuals/basket 5.30 l (SO3); site selection for culture and spat collection of green mussel should consider coastal oceanographic factors (ST1); controlling the level of waste disposal from the mainland so as not to pollute coastal areas (ST2); and to formulate practical guidance of management of green mussel culture based on the food security principle.

Biologi Reproduksi Ikan Belida (Notopterus notopterus Pallas, 1769) di Kolong-Bendungan Simpur, Pulau Bangka

Jurnal Ilmu Pertanian Indonesia Vol 21, No 1 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The knowledge of fish reproduction is the most important in freshwater management continously. The research was done from February-July 2013, was aiming to describe information on reproductive aspects of belida fishes (Notopterus notopterus),i.e. sex ratio, gonado somatic stages, gonado somatic index, first size of maturity, fecundity, and spawning type. The fish Samples was taken by gill net which had many sizes such as 2, 2.5, 3, and 4 cm. Each gill net has length 30 m and width 2 m. Belida fishes have caught during research amounted 497 ind, which consisted of: 237 male and 260 female. Sex ratio male and female fish were relatively balance. The maturity gonad of male fish is faster than female fish. Featherback do spawn every month for each observation during the research. The spawning type of Featherback is partial pattern (step by step). The first size of maturity gonad from male fish was in length 135 mm and female fish was in length 162 mm. Fecundity of Featherback was in range 1.051-6.057 eggs. Fecundity is not influenced by length or weight body. For the sake to keep Featherback population needed a regulation, such as: the mesh size regulation of gillnet have to 30 mm or equal with 1.5 inci.

Distribusi Spasial dan Temporal Kepiting Kelapa (Birgus latro Linn 1767) di Daeo Kabupaten Pulau Morotai, Maluku Utara

Jurnal Ilmu Pertanian Indonesia Vol 23, No 3 (2018): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

This study aims to describe the size distribution of coconut crabs spatially and temporally in Daeo, Morotai Island, North Maluku. The captching was carried out at three stations, namely in areas adjacent to residential areas (station I), steep terrain with varying vegetation (station II), and shallow areas with various vegetation and coconut trees (station III). The collections of samples were conducted using coconut bait and catching directly by hand. Their lengths of cephalotorax plus rostrum (Cp+r) and thorax (TL) and weight were measured. The habitat conditions of natural vegetation were also observed. Data collected in catch (spatial) were analyzed with non-parametric Mann- Whitney (α0.05) and temporal tests with Kruskal Wallis test (α0.05). The results showed that the total numbers of catched coconut crabs were 581 individuals consisted of 314 and 267 males and femalescoconut crabs). The weight ranges of male and female coconut crabs were 50-990 and 50-520 grams, respectively. The ranges of Cp+r on male and female coconut crabs were 43.98-114.72 mm and 43.98-90.67 mm, respectively. The sizes of the TL in male and female coconut crabs were 19.56-54.86 mm and 19.56-48.65 mm, respectively. Non-parametric Mann-Whitney test of the number of spatial coconut crab catched in station I was different from those in station II and stasion III (P<0.05). The numbers coconut crabs catched were not temporally different (P>0.05). The spatial environmental qualities were not different (P>0.05) and the temporal parameters were significantly different (P<0.05) except pH that was not significantly different (P>0.05). Station III had denser vegetation than stations I and II.