Effect of different salinity levels on the fertilization and hatching of Heterobranchus bidorsalis

Orji, R.C.A. and Nnadi, C.N. and Onyike, G. and Ogbona, J. (1997) Effect of different salinity levels on the fertilization and hatching of Heterobranchus bidorsalis. Naga, the ICLARM Quarterly, 20(2), pp. 21-22.

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Abstract

The success of induced spawning for the production of fish seed depends on many factors which affect hatchery conditions. This paper discusses the results of an investigation on the effects of six different levels of salinity on the fertilization and hatching of Heterobranchus bidorsalis eggs. The results indicate that spermatozoa of H. bidorsalis can survive under a wide range of saline concentrations, with survival increasing with an increase in salinity from 0 to 0.4% and then decreasing as the level of salinity increases. Survival was optimum of 0.4% saline concentration.

Item Type: Article
Title: Effect of different salinity levels on the fertilization and hatching of Heterobranchus bidorsalis
Personal Creator/Author:
CreatorsEmail
Orji, R.C.A.
Nnadi, C.N.
Onyike, G.
Ogbona, J.
Journal or Publication Title: Naga, the ICLARM Quarterly
Volume: 20
Number: 2
Page Range: pp. 21-22
Date: 1997
ISSN: 0116-290X
Issuing Agency: WorldFish Center
Uncontrolled Keywords: Induced breeding; Biological fertilization; Hatching; Seed production; Salinity effects; Fish culture; Heterobranchus bidorsalis
Subjects: Aquaculture
Item ID: 9405
Depositing User: Mr William Ko
Date Deposited: 10 Oct 2012 07:26
Last Modified: 10 Oct 2012 07:26
URI: http://aquaticcommons.org/id/eprint/9405

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