THE LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF THE THREATENED SNAKEHEAD (CHANNA STRIATA) FROM SUNGAI BATANG RIVER, INDONESIA

AHMADI , AHMADI THE LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF THE THREATENED SNAKEHEAD (CHANNA STRIATA) FROM SUNGAI BATANG RIVER, INDONESIA. POLISH JOURNAL OF NATURAL SCIENCES.

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Official URL: http://www.uwm.edu.pl/polish-journal/issues/no-334...

Abstract

The snakehead (Channa striata) in Sungai Batang River, Indonesia has high commercial value and high pressure on population caused by fishing. Meanwhile, scientific information on morphometric characteristic of snakehead is still lacking. Samples of 330 fishes having size range of 75–335 mm (202.68 ± 46.56 mm) total length (TL) and 9–288 g (81.23 ± 53.95 g) weight were taken to estimate length-weight relationship and condition factors. The snakehead grew allometrically (b = 2.6927–2.9125), indicating that fish becomes slender as the length increases. Total length and weight of female were significantly higher than male (P < 0.001). The highest number of catch was found between 160 and 179 mm TL (24.44%) for male and between 260 and 279 mm TL (16.00%) for female. The heaviest catches of male (33.89%) and female (14.00%) were noted between 30 and 49 g weight class. The mean condition factor (K) value of female was considerably higher than that of male (P < 0.001). The mean K values obtained for male and female were 0.83 ± 0.09 and 0.86 ± 0.08, indicating that the fish in the river was unfavorable condition. To the best our knowledge, this study is the first reference on length-weight and condition factor for snakehead from this river.

Item Type: Article
Subjects: A General Works > AI Indexes (General)
Depositing User: Mr Arief Mirathan
Date Deposited: 11 Mar 2019 02:44
Last Modified: 11 Mar 2019 02:44
URI: http://eprints.ulm.ac.id/id/eprint/5511

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