BIOMETRIC ANALYSIS OF THE ARTIFICIAL HYBRIDIZATION BETWEEN Pangasius djambal BLEEKER, 1846 AND Pangasianodon hypophthalmus SAUVAGE, 1878

Rudhy Gustiano

Abstract


It is really important, since the possible use of these pangasiid hybrids in aquaculture faces the problem of potential impact on wild population. Therefore, it is urgently needed to provide quick identification tools in the field. This study investigated morphological characters of Pangasius djambal and Pangasianodon hypophthalmus and their hybrids. A detailed morphological analysis using 32 morphometric measurements and five meristic counts was done on the hybridization of P. djambal and P. hypophthalmus. Morphometric analysis and meristic counts showed that the reciprocal hybrids have intermediate characters except for gill raker number in which lower than that of parental species. In general, the hybrids have tendency to be like P. hypophthalmus rather than P. djambal. The only typical character of P. djambal appeared on hybrids is teeth shape, both vomerine and palatine. It is clearly defined that the true hybrids have seven pelvic fin rays.

Keywords


Pangasius djambal; Pangasianodon hypophthalmus; hybridization; biometry

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DOI: http://dx.doi.org/10.21082/ijas.v5n2.2004.p70-74

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Indonesian Journal of Agricultural Science (IJAS) by http://ejurnal.litbang.pertanian.go.id/index.php/ijas is licenced under a http://creativecommons.org/licenses/by-sa/4.0/ 

Publisher: Indonesian Agency for Agricultural Research and Development

Editorial Office:

Indonesian Institute for Agricultural Technology Transfer

Jalan Salak No. 22 Bogor-Indonesia

ISSN:1411-982X

E-ISSN:2354-8509

   

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