By Craig S. Tucker, John A. Hargreaves

ISBN-10: 0813820278

ISBN-13: 9780813820279

Released in Cooperation with the us AQUACULTURE SOCIETY

The quick development of aquaculture around the world and locally has brought on issues over social and environmental affects. Environmental advocacy teams and executive regulatory corporations have referred to as for larger administration to handle in all likelihood unfavorable affects and guarantee sustainable aquaculture improvement. most sensible administration Practices (BMPs) mix sound technology, logic, economics, and site-specific administration to mitigate or hinder adversarial environmental affects.

Environmental top administration Practices for Aquaculture will supply technical assistance to enhance the environmental functionality of aquaculture. This booklet could be the basically entire advisor to BMPs for mitigation of environmental affects of aquaculture within the usa. The e-book addresses improvement and implementation of BMPs, BMPs for particular aquaculture creation platforms, and the economics of imposing top administration practices. Written by means of the world over well-known specialists in environmental administration and aquaculture from academia, govt, and non-governmental companies, this publication could be a worthwhile reference for cutting edge manufacturers, coverage makers, regulators, learn scientists, and scholars.

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Water use in ponds is functionally similar to that in recirculating systems in that water quality is maintained by mechanical and biological processes. However, in recirculating systems, treatment takes place in discrete units, such as screens, filters, or settling basins, whereas in ponds the processes are inherent parts of the ecosystem. Water use in ponds varies over a much wider range that for any other aquaculture system, depending primarily on the frequency of intentional water exchange (flushing) and pond drawdowns for harvest.

In fact, some have argued (Asgard et al. 1997; Forster 1999) that it is considerably more efficient to capture, process, and feed pelagic fish to salmon than to allow the fish to be eaten naturally by wild fish where ecological inefficiencies are on the order of tenfold for each change in trophic level. Perhaps the most important consideration is that aquaculture has not caused greater overall use of fishmeal. Global fishmeal production and use has been relatively stable since the 1980s and has been redistributed only among various users, with aquaculture using a larger proportion over time.

1994; Aquaculture and the Environment in the United States 23 Tyedmers 2000). Assuming a value of 50 ha of marine area per tonne of fishmeal, and typical feeds and production conditions used by Boyd et al. 2 ha of ocean area is needed to provide fishmeal to grow 1 tonne of channel catfish and about 18 ha of ocean is needed to grow 1 tonne of salmon. These values are indicative rather than definitive because marine areas needed for fishmeal production vary greatly depending on the type of fishmeal used, the productivity of the fishery, and feed conversion when fed to fish.

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Environmental Best Management Practices for Aquaculture by Craig S. Tucker, John A. Hargreaves

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