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KERAGAMAN BIOLOGIS IKAN KERAPU SUNU (Plectropomus leopardus) DI KEPULAUAN SPERMONDE SULAWESI SELATAN Ernaningsih, Ernaningsih; Budimawan, Budimawan; Nessa, Natsir; Sudirman, Sudirman
Torani Journal of Fisheries and Marine Science Vol. 25 No. 2 (2015)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.153 KB) | DOI: 10.35911/torani.v25i3.2607

Abstract

 Fisheries management requires reliable estimation and can be made as a consequence of the alternatives strategyexploitation, it requires knowledge about the biological condition of the fish stocks at a certain time, one of them is agrouper (Plectropomus leopardus).The aims of this study is to analyze the biological diversity includes the averagetotal length, size structure and weight-length relationship of groupers (Plectropomus leopardus) in SpermondeIslands. The results are expected to provide information on sustainable resource management in SpermondeArchipelago.The study was conducted from July 2013- February 2014 in three locations of Spermondearchipelago,namely Sarappo Island, LumulumuIsland and LangkaiIsland using primary data. Research methodssuch as measurement of total length and weight of the grouper Sunufish from the catch of fishermen and traders ineach collection area. The average of the total length, the size structure and weight length relationships wereanalyzed descriptively,The analysis results of the average total length of the grouper (P. leopardus) caught inSarappo Island, Lumulumu Island and Langkai Island respectively 29.84 ± 8.6 cm (N = 624), 31.93 ± 8.03 cm ( N =291), 34.64 ± 7.41 cm (N = 214) where the nearer them to the mainland,the smaller averagetotal length is. The sizedistribution of grouper sunu (P. leopardus) in the Sarappo island and Lumulumu island are most of the small sizewhich is 22.5 cm by 35.63% and 22.68%, and on the Langkai island the most caught fishes size are 37.5 cm by 31,77%. Weight-length relationship on the three islands are minor allometric,Keywords: total length, structure size, weight length relationship, grouper Spermonde Archipelago
PETA SEBARAN IKAN CAKALANG (Katsuwonus pelamis) BERDASARKAN BEBERAPA PARAMETER LINGKUNGAN DI TELUK BONE DAN LAUT FLORES Jamal, Muhammad; Ernaningsih, Ernaningsih; Hasrun, Hasrun; Selamat, M. Banda
Torani Journal of Fisheries and Marine Science Vol. 26 No. 1 (2016)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.153 KB) | DOI: 10.35911/torani.v26i1.2618

Abstract

Bone Strait and Flores sea are Indonesian waters which has a high fish resources, especially Katsuwonuspelagicus. Those waters are also affected by climate change. Aims of study were to examined distribution map ofKatsuwonus fish based on environemental condition at Bone Strait and Flores Sea. Study was conducted for fourmonths (May – August 2015). Environment parameters (Sea level temperature, Chl a, salnity and pH) wasmeasured in situ at fishing area and fish weight data was measured through measuring fish that caught from poleand line fishermen. Results showed that Katsuwonus from Bone Strait (1 – 2 kg and 3.5 – 5 kg) tended to distributeat temperature, Chl a, salinity and pH account for 29.3oC – 30oC, 0.8 – 1.5 mg/m3 and 28 – 30 o/oo, 7.95 – 8.37respectively. meanwhile fish with 2 – 2.5 kg was distributed at 30oC – 30.3oC, 0.6 – 0.7 mg/m3, 28 – 29 o/oo and8.32 – 8.5 for temperature, Chl a, salinity and pH, respectively. At Flores Sea, Katsuwonus with 1.2 – 1.5 kgtended to distribut at 29.5oC – 30oC, 0.12 – 0.16 mg/m3, 28 – 30 o/oo and 7.95 – 8.57 for temperature, chl a, salinityand pH, respectively. Fish with weight 1.5 – 2.2 kg was spread at 28.5oC – 29oC for temperature, 0.1 – 0.13mg/m3 chl a, 28 – 30o/oo for salinity and 8.38 – 8.5 for pH.Keywords : Distribution map, Katsuwonus fish, environmental factor, Bone Strait and Flores Sea.