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Morphological Changes with growth in Liza cCarinata (Valenciennes) egg, larva and juvenile as distinguished from those of Liza Haematocheila (ScWegel)


Citation

Hassan, Anuar and Takita, Toru (1993) Morphological Changes with growth in Liza cCarinata (Valenciennes) egg, larva and juvenile as distinguished from those of Liza Haematocheila (ScWegel). Pertanika Journal of Tropical Agricultural Science, 16 (3). pp. 187-192. ISSN 0126-6128

Abstract / Synopsis

The morphological changes in the egg, larval and juvenile stages of Liza carinata with growth were investigated in reared and wild specimens. L. carinata could be distinguished from L. haematocheila which is likely to spawn concurrently in time and space in the egg, larva, and juvenile stages. The eggs hatch within 45-102 h after fertilization in water of15-21 °C, corresponding to the temperature in the spawning ground. A newly-hatched larva averages 2.1 mm in total length. The anlage of the caudal fin appears in the larva of around 3.4 mm and the juvenile stage is attained at a length of 8.9 mm. L. haematocheila is distinguished fly its larger size in the egg and larval stages. The melanophores located on the top of the head and the rear end of the tail in L. carinata may also serve as distinguishing marks in the larval stages. The longer extension of the mid-lateral melanophore row in L. carinata distinguishes them in the juvenile stage. The characteristic dorsal ridge in L. carinata (which does not occur in L. haematocheila) appears after a total length of 30mm is reached.


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Additional Metadata

Item Type: Article
Divisions: Universiti Pertanian Malaysia
Publisher: Universiti Putra Malaysia Press
Keywords: Morphological change; Egg; Larva; Juvenile; Melanophore; spawn; Distinguishing mark.
Depositing User: Nasirah Abu Samah
Date Deposited: 24 Nov 2009 03:31
Last Modified: 01 Sep 2015 08:28
URI: http://psasir.upm.edu.my/id/eprint/3152
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