The Environmental Impacts of Fish Farming
By Massimo Bedoya
Aquaculture is a burgeoning industry whose historic and projected growth has important consequences for the environment as well as for fish welfare. This paper is intended as a summary of current knowledge on the various methods used to farm finfish and some important ways these practices create environmental harms and risks. The reader should gain a foundational understanding of the various common systems used to farm fishes, the differences between high- and low-intensity systems as well as between marine and freshwater aquaculture, their implications for environmental impact, and a bit about the future of the industry and the importance of fish welfare.
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Specifically, this report will focus on:
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Use of wild caught fishes for feed
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Diseases affecting wild fish populations
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Eutrophication
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Farm escapes
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Antibiotic use
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Energy use