Pengaruh Pencemaran DAS Way Seputih di Lampung Tengah terhadap Sumber Daya Perikanan (suatu Kasus Pentingnya Pengelolaan secara Terpadu)

Seputih river basin located at Center of Lampung is not only utilized by fisheries sector, but also by other sectors such as industry and water irrigation, Industrial pollution has significantly affected on the degradation of the fisheries resources and a mass mortality of cultured fish in floating cages. To cope the ecological damage caused by the pollution need am in integrated management of the river basin. Causes and effects of the pollution on the fisheries resources and their ecologies, and the importance of an integrated management of the river basin based on the community management were discussed

MAKANAN IKAN JAPUH, Dussumieria Acuta Valenciennes, 1847 (FAMILI: CLUPEIDAE) DI PERAIRAN TELUK KENDARI [Food Habit of Rainbow Sardine, Dussumieria Acuta Valenciennes, 1847 (Family: Clupeidae) in Kendari Bay]

Research on ontogenetic dietary variation rainbow sardine relating to body size of fish with time was carried out from August 2009 to January 2010 in Kendari Bay, Southeast Sulawesi. This research aims to describe ecological role of rainbow sardine in Kendari Bay. Fish collection was done using experimental gillnets (with different mesh sizes %, 1, 1%, and 1% inch) and scopednet (0 1 meter and mesh size 0.04 inch). A total of 136 individual fish were caught with range from 0.6 to 15.7 cm in length. Food analysis was determined by using Index of Preponderance. Result of the analysis indicates rainbow sardine is planktivora, which important diet is Bacillariophyceae. The male and females of fish did not have ontogenetic dietary (main food) shift and was not ontogenetic dietary shift relating to body size of fish. The diet of the fish every months was dominated by Bacillariophyceae

Keanekaragaman Ikan Di Perairan Teluk Kendari Sulawesi Tenggara [Fish Diversity in Kendari Bay, Southeast Sulawesi]

Research on fish diversity was carried out from August to October 2009 with three times of sampling in three stations in Kendari Bay, Southeast Sulawesi. Fish collection using experimental gillnets (with different mesh sizes %, 1, 1%, 1%, 2, 3, and 4 inch) and seser (0 1 meter and mesh size 0.04 inch). During research, 45 species of 30 families were collected. Based on individual quantities, at the first sampling, Sardinella fimbriata was dominant species on Station I and II, S. longiceps on Station III; in the second sampling, S. fimbriata was dominant species on Station I, S. longiceps on Station II, Plotosus canius on S3; in the third sampling, Ambassis sp. was dominant species on Station I, S.longiceps on Station II, Upeneus suphureus and Stolephorus commersonii on S3. Diversity index (H\u27) was range between 0.512.25, dominance index (C) was range between 0.16-0.83 and evenness index (E) was range between 0.19-0.75

Komposisi Jenis dan Ukuran Ikan Petek (Famili Leiognathidae) di Perairan Teluk Kendari, Sulawesi Tenggara [Species Composition And Size Of Pony Fishes, Family Leiognathidae In Kendari Bay, Southeast Sulawesi]

Penelitian tentang komposisi jenis dan ukuran ikan petek dilakukan sejak Agustus 2009 sampai Juni 2010 pada tiga zona di perairan Teluk Kendari. Koleksi ikan dilakukan dengan jaring insang percobaan (dengan ukuran mata jaring ber-beda %, 1, 1 %, 1 %, dan 2 inci) dan alat seser (0 1 meter dan ukuran mata jaring 0,04 inci). Pada penelitian ini berhasil diinventarisasi 10 jenis Famili Leiognathidae dari enam genera yaitu Gazza (1 jenis), Leiognathus (4 jenis), Nuchequula (1 jenis), Photopectoralis (1 jenis), Eubleekeria (1 jenis), dan Secutor (2 jenis). Berdasarkan jumlah individu ternyata Nuchequula blochii (39,72%) dan E. splendens (33,95%) merupakan jenis dominan pada Zona I, Secutor indicius pada Zona II (38,75%), dan N. blochii (20,50%) dan E. splendens (25,10%) pada Zona III. Frekuensi kehadiran famili Leiognathidae selama penelitian bervariasi, E. splendens merupakan penghuni tetap perairan Teluk Kendari (100%) sedang-kan Photopectoralis bindus dan L. dussumieri merupakan jenis yang jarang ditemukan (18,18%). Sebaran ukuran dan frekuensi kehadiran mengindikasikan bahwa ikan petek menggunakan perairan Teluk Kendari sebagai daerah asuhan dan pembesaran