Effects of common carp Cyprinus carpio (L.) and feed addition in rohu Labeo rohita (Hamilton) ponds on nutrient partitioning among fish, plankton and benthos

Rahman, Mohammad Mustafizur and Verdegem, Marc and Nagelkerke, Leo and Wahab, Md Abdul and Milstein, Ana and Verreth, Johan (2008) Effects of common carp Cyprinus carpio (L.) and feed addition in rohu Labeo rohita (Hamilton) ponds on nutrient partitioning among fish, plankton and benthos. Aquaculture Research, 39 (1). pp. 85-95. ISSN 1365-2109

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Abstract

The effects of introducing common carp (CC) and of adding artificial feed to fertilized rohu ponds on water quality and nutrient accumulation efficiency were studied. All ponds were stocked with 15000 rohu ha-1. Treatments included ponds with rohu alone, rohu plus 5000 common carp ha-1 and rohu plus 10000CC ha-1. Acomparisonwas alsomade between supplementally fed and non-fed ponds. The overall highest nitrogen (N) and phosphorus (P) concentrations were observed in ponds with 5000 CC ha-1, followed by ponds with 10000 and 0 CC ha-1. The largest fractions of Nand Pinputs accumulating in fish, phytoplankton and zooplankton were observed in ponds with 5000 CC ha-1, followed by ponds with 10000CC ha-1 and subsequently ponds without CC. Relatively more nutrients accumulated in benthic organisms in ponds without than in ponds with CC. A smaller fraction of the nutrient input was retained in fish, plankton and benthic organisms in pondswithout CC compared with ponds with CC. Compared with 5000 CC ha-1, stocking10000 CC ha-1 canbe considered as overstocking, because this leads to lower ¢sh production and relatively less nutrients retained in plankton and benthic organisms.

Item Type:	Article (Journal)
Additional Information:	6647/3236
Uncontrolled Keywords:	water quality, nutrient accumulation, pond, rohu, common carp
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Institute of Oceanography and Maritime Studies
Depositing User:	Dr. Mohammad Mustafizur Rahman
Date Deposited:	09 May 2012 15:52
Last Modified:	09 May 2012 15:52
URI:	http://irep.iium.edu.my/id/eprint/3236

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