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Effects of selective harvesting and claw ablation of all-male freshwater prawn ( Macrobrachium rosenbergii ) on water quality, production and economics in polyculture ponds

2010; Wiley; Linguagem: Inglês

10.1111/j.1365-2109.2009.02472.x

1365-2109

Sheikh Md. Shamsur Rahman, Md. Abdul Wahab, Md. Ashraful Islam, Mrityunjoy Kunda, Md. Ekram Azim,

Aquatic life and conservation

Aquaculture ResearchVolume 41, Issue 10 p. e404-e417 Effects of selective harvesting and claw ablation of all-male freshwater prawn (Macrobrachium rosenbergii ) on water quality, production and economics in polyculture ponds Sheikh Md. Shamsur Rahman, Sheikh Md. Shamsur Rahman Department of Fisheries Management, Bangladesh Agricultural University (BAU), Mymensingh, BangladeshSearch for more papers by this authorMd. Abdul Wahab, Md. Abdul Wahab Department of Fisheries Management, Bangladesh Agricultural University (BAU), Mymensingh, BangladeshSearch for more papers by this authorMd. Ashraful Islam, Md. Ashraful Islam Department of Fisheries Management, Bangladesh Agricultural University (BAU), Mymensingh, BangladeshSearch for more papers by this authorMrityunjoy Kunda, Mrityunjoy Kunda Department of Fisheries Management, Bangladesh Agricultural University (BAU), Mymensingh, BangladeshSearch for more papers by this authorMd. Ekram Azim, Md. Ekram Azim Department of Physical and Environmental Sciences, University of Toronto, Toronto, ON, CanadaSearch for more papers by this author Sheikh Md. Shamsur Rahman, Sheikh Md. Shamsur Rahman Department of Fisheries Management, Bangladesh Agricultural University (BAU), Mymensingh, BangladeshSearch for more papers by this authorMd. Abdul Wahab, Md. Abdul Wahab Department of Fisheries Management, Bangladesh Agricultural University (BAU), Mymensingh, BangladeshSearch for more papers by this authorMd. Ashraful Islam, Md. Ashraful Islam Department of Fisheries Management, Bangladesh Agricultural University (BAU), Mymensingh, BangladeshSearch for more papers by this authorMrityunjoy Kunda, Mrityunjoy Kunda Department of Fisheries Management, Bangladesh Agricultural University (BAU), Mymensingh, BangladeshSearch for more papers by this authorMd. Ekram Azim, Md. Ekram Azim Department of Physical and Environmental Sciences, University of Toronto, Toronto, ON, CanadaSearch for more papers by this author First published: 16 March 2010 https://doi.org/10.1111/j.1365-2109.2009.02472.xCitations: 4 Correspondence: S M Shamsur Rahman, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh. E-mail: smsrahman_bau@yahoo.com Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract The effects of selective harvesting (SH) and claw ablation (CA) of blue-clawed (BC) prawns on an all-male freshwater prawn–finfish polyculture system were compared with control (Co) in quadruplicate. Ponds were stocked with all-male freshwater prawn Macrobrachium rosenbergii, silver carp Hypophthalmichthys molitrix, catla Catla catla and mola Amblypharyngodon mola at 12 000, 2000, 500 and 20 000 ha−1 respectively. Prawns were fed with pelleted feed. Ponds were fertilized regularly with urea, triple super phosphate and cow-dung. SH of BC prawns in treatment SH and CA in treatment CA started on the 60th day during a 137-day culture and continued at 15-day intervals until the final harvest. Water quality parameters and plankton abundance did not vary significantly (P>0.05) among the treatments. Treatment SH resulted in a higher (P<0.05) net production of freshwater prawn (437 kg ha−1), with better survival and mean weight, followed by CA (354 kg ha−1) and Co (322 kg ha−1). The combined net production of prawn plus finfish was also higher in SH (1244 kg ha−1) as compared with CA (1161 kg ha−1) and Co (1137 kg ha−1), although the finfish production did not differ significantly. The periodic SH of BC prawns showed a better economic return with a BCR of 1.71. Citing Literature Volume41, Issue10September 2010Pages e404-e417 RelatedInformation