KERAGAMAN BIOLOGIS IKAN KERAPU SUNU (Plectropomus leopardus) DI KEPULAUAN SPERMONDE SULAWESI SELATAN
DOI:
https://doi.org/10.35911/torani.v25i3.2607Abstract
Fisheries management requires reliable estimation and can be made as a consequence of the alternatives strategy
exploitation, it requires knowledge about the biological condition of the fish stocks at a certain time, one of them is a
grouper (Plectropomus leopardus).The aims of this study is to analyze the biological diversity includes the average
total length, size structure and weight-length relationship of groupers (Plectropomus leopardus) in Spermonde
Islands. The results are expected to provide information on sustainable resource management in Spermonde
Archipelago.The study was conducted from July 2013- February 2014 in three locations of Spermonde
archipelago,namely Sarappo Island, LumulumuIsland and LangkaiIsland using primary data. Research methods
such as measurement of total length and weight of the grouper Sunufish from the catch of fishermen and traders in
each collection area. The average of the total length, the size structure and weight length relationships were
analyzed descriptively,The analysis results of the average total length of the grouper (P. leopardus) caught in
Sarappo 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 size
distribution of grouper sunu (P. leopardus) in the Sarappo island and Lumulumu island are most of the small size
which 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
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