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Journal of Fisheries and Aquatic Science
  Year: 2012 | Volume: 7 | Issue: 6 | Page No.: 402-411
DOI: 10.3923/jfas.2012.402.411
 
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Ingestion Rates of Brachionus sp. And Artemia sp. Nauplii by Blue Swimming Crab, Portunus pelagicus (Linnaeus, 1758) Larvae
M. Ikhwanuddin, M.N. Azra, A. Redzuari, Z.A. Aizam and A.B. Abol-Munafi

Abstract:
The experiment was conducted to determine the ingestion rate of Artemia sp. nauplii and Brachionus sp. by individual blue swimming crab, Portunus pelagicus larvae from zoea 1 until megalopa stages after 24 h. The study also to determined, if the presence of Brachionus sp. influences the ingestion of Artemia sp. nauplii by the individual P. pelagicus larvae. This involved three different feeding treatments, with Artemia sp. nauplii only (Treatment 1), Brachionus sp. only (Treatment 2) and with both Artemia sp. nauplii and Brachionus sp. (Treatment 3) in culture tank. Results indicates that ingestion rates of Artemia sp. nauplii and Brachionus sp. after 24 h by P. pelagicus larvae are 0 Artemia sp. nauplii and 35-36 Brachionus sp. for zoea 1, 1-2 Artemia sp. nauplii and 37-38 Brachionus sp. for zoea 2; 8-15 Artemia sp. nauplii and 38-40 Brachionus sp. for zoea 3; 12-18 Artemia sp. nauplii and 27-37 Brachionus sp. for zoea 4 stage; and finally 32-35 Artemia sp. nauplii and 16-30 Brachionus sp. for Megalopa stages. The individual P. pelagicus larvae ingested more Artemia sp. nauplii during the late larval stages (zoea 3, zoea 4 and megalopa stage) as compared to the initial larval stages (zoea 1 and zoea 2) but ingested more Brachionus sp. during the initial larval stages compared to the late larval stages. However, the presence of Brachionus sp. did not influence the consumption of Artemia sp. nauplii by the individual P. pelagicus larvae at each larval stage.
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How to cite this article:

M. Ikhwanuddin, M.N. Azra, A. Redzuari, Z.A. Aizam and A.B. Abol-Munafi, 2012. Ingestion Rates of Brachionus sp. And Artemia sp. Nauplii by Blue Swimming Crab, Portunus pelagicus (Linnaeus, 1758) Larvae. Journal of Fisheries and Aquatic Science, 7: 402-411.

DOI: 10.3923/jfas.2012.402.411

URL: https://scialert.net/abstract/?doi=jfas.2012.402.411

 
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