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Journal of Fisheries and Aquatic Science
  Year: 2016 | Volume: 11 | Issue: 6 | Page No.: 418-424
DOI: 10.3923/jfas.2016.418.424
 
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Preliminary Study on the Morphology and Biology of Coexist Nemipterus furcosus and Nemipterus tambuloides from Terengganu Waters, Peninsular Malaysia
Ying Giat Seah, Muhammad Nabilsyafiq and Abd Ghaffar Mazlan

Abstract:
Background and Objective: Ichthyological study in Malaysia are still lacking and generally bycatch are received little attention. The study describes the differences between two coexist commercially important dominant species Nemipterus furcosus and Nemipterus tambuloides for morphological characteristics, length-weight relationship and some biological aspects. Materials and Methods: The specimen were collected from Pulau Kambing fish landing port, Terengganu during October, 2013. Fishes were examined for their systematic account differences. Length-weight relationships were calculated using the allometric regression analysis (W = aLb). Trophic levels were assessed by relative length of gut (RLG) and reproductive information obtained by gonadosomatic index (GSI) and hepatosomatic index (HSI). Results: Nemipterus furcosus and N. tambuloides were easily distinguished in fresh condition, but displayed almost similar appearances in faint or preservation condition. Through detailed examination on morphological parameters both species had high similarities in meristic counts and morphometric measurements. There were however, three parameters, that significantly differentiated the two species: length of dorsal fin base, predorsal length and length of pectoral fin. In similar unit of standard length, N. furcosus had greater body weight compare to N. tambuloides. The population growth pattern indicated both N. furcosus (2.71±0.17) and N. tambuloides (2.54±0.16) experience negative allometric growth, i.e., both species became more slender as their lengths increased. The estimated mean RLG for N. furcosus and N. tambuloides were >1 (1.28±0.18 and 1.17±0.09, respectively), which indicated that both species were omnivorous fish. However, a negative relationship between RLG and total length was also found suggesting that both species tended towards a carnivorous diet as they grew bigger, especially for N. tambuloides. The gut lengths and RLG values for N. furcosus were greater than N. tambuloides. Gonad and liver weights for both species increased with body weight and the rate of increase in gonad weight was greater than liver weight. However, the GSI and HSI values almost remain constant for both species, revealing all samples were in the same state of gonad maturation in present study. Conclusion: The N. furcosus having shorter predorsal and pectoral fin length but longer dorsal fin base compare to N. tambuloides. Both species have newly discovered as omnivorous fish but tended towards a carnivorous diet during growth. These coexist species share similar pattern on population growth and reproductive biology.
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How to cite this article:

Ying Giat Seah, Muhammad Nabilsyafiq and Abd Ghaffar Mazlan, 2016. Preliminary Study on the Morphology and Biology of Coexist Nemipterus furcosus and Nemipterus tambuloides from Terengganu Waters, Peninsular Malaysia. Journal of Fisheries and Aquatic Science, 11: 418-424.

DOI: 10.3923/jfas.2016.418.424

URL: https://scialert.net/abstract/?doi=jfas.2016.418.424

COMMENTS
05 February, 2019
mohamed wagih:
Dear sir i will be glad to receive pdf copy of your article about Nemipterus spp. because I am working on Nemiterus japonicus in Mediterranean water best wishes & I will send you my article after I finish it thanks a lot & Best wisahes.
 
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