KARAKTER MORFOMETRIK DAN MERISTIK IKAN EKOR PEDANG (Xiphophorus helleri Heckel, 1848) DI DANAU BUYAN, BULELENG, BALI
Abstract
Green swordtail is not originally from Indonesia, but from Central America. This fish was reported harmful in some freshwater ecosystem. Green swordtail was the second most caught fish in Buyan Lake. The aims of this research were to reveal morphometric and meristic characters, length-weight relationship and total length-standard length relationship on two variants of green swordtail with the different color in Buyan Lake. This research was conducted from January to April 2018 in Buyan Lake. The number of measured and weighed fish were 160 individuals. There were 12 traditional morphometric characters, 14 truss morphometric characters, and four meristic characters observed. Respectively, the total length for green swordtail variant I male and female were 43.94 - 79.47 mm and 43.81 - 115.80 mm. The b value for both of the variant I were 2.90 and 2.98. For the variant II, the total length was 45.76 - 83.91 mm for male fish and 41.43 - 88.49 for female. The b value for variant II were 2.80 and 3.07 for male and female respectively. Meristic characters for all variant and sex was D 12 - 13; A 8 - 9. The growth pattern was isometric. There is no difference in the body shape between the variant of green swordtail fish.
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DOI: http://dx.doi.org/10.15578/bawal.11.2.2019.103-111
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