Early developmental stages of two Secutor species (Family: Leiognathidae) collected from the Bak-khali river estuary of the Bay of Bengal, Bangladesh

Early developmental stages of two Secutor species, Secutor insidiator (Bloch) (11.9-36.0mm standard length, SL) and Secutor ruconius (Hamilton-Buchanan) (14.0-33.0 mm SL)collected by ichthyoplankton net from the Bak-khali river estuary of the Bay of Bengal,Cox's Bazar, Bangladesh are described and illustrated. All of the fins with supportingspines and rays were present in the smallest collected sizes of both species. With growthof the specimens, significant changes in melanophore patterns were found. S. insidiatoris similar to S. ruconius in having upward protracting mouth parts and body colouration,but can be distinguished easily by its more elongate body shape (body depth 38-47% ofSL compared with 46-52% of SL in Secutor ruconius). Both the species occurred roundthe year from August 1998 to July 1999. The surface water temperature and salinityduring the study period varied from 22.0-32) C and 10-37 ppt respectively.

Bibliographic Details

Main Authors:	Islam, M.M., Haque, M.M., Hossain, M.A.
Format:	article biblioteca
Language:	English
Published:	2002
Subjects:	Fisheries, Early ontogeny, Bay of Bengal, Secutor,
Online Access:	http://hdl.handle.net/1834/33147
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