期刊
JOURNAL OF CLEANER PRODUCTION
卷 17, 期 3, 页码 362-373出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2008.08.002
关键词
LCA; Alternative aquaculture technologies; Salmonid culture systems; Canadian aquaculture
This study employed life cycle assessment (LCA) to quantify and compare the potential environmental impacts of culturing salmonids in a conventional marine net-pen system with those of three reportedly environmentally-friendly alternatives; a marine floating bag system; a land-based saltwater flow-through system; and a land-based freshwater recirculating system. Results of the study indicate that while the use of these closed-containment systems may reduce the local ecological impacts typically associated with net-pen salmon farming, the increase in material and energy demands associated with their use may result in significantly increased contributions to several environmental impacts of global concern, including global warming, non-renewable resource depletion, and acidification. It is recommended that these unanticipated impacts be carefully considered in further assessments of the sustainability of closed-containment systems and in ongoing efforts to develop and employ these technologies on a larger scale. (C) 2008 Elsevier Ltd. All rights reserved.
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