Localized effects of offshore aquaculture on water quality in a tropical sea.
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ArticleKAUST Department
Biological and Environmental Science and Engineering (BESE) DivisionMarine Science Program
Microbial oceanography Research Group
Red Sea Research Center (RSRC)
Date
2021-07-27Online Publication Date
2021-07-27Print Publication Date
2021-10Permanent link to this record
http://hdl.handle.net/10754/670390
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Aquaculture production has increased steadily in many tropical countries over the past few decades, although impact assessments have been frequently neglected. We investigated the impacts of an offshore barramundi fish farm on water quality in the southern-central Red Sea, a traditionally understudied tropical, oligotrophic, and semi-enclosed basin. Inorganic nutrients, particulate matter, chlorophyll-a, and heterotrophic bacteria were measured periodically over 8 months around the farm. Water down-current from the farm had, on average, more heterotrophic bacteria and chlorophyll-a than up-current (11% and 34% higher, respectively). Ratios of dissolved inorganic nitrogen:phosphorus down-current from the farm were lower than ratios up-current (mean 9.8 vs 16.0, respectively). Phosphate, inorganic nitrogen, and particulate matter showed patterns of enrichment associated with the farm after a fish feeding event. Strategies such as feed optimization and considering hydrodynamics in site selection may improve water quality for future fish farms in Saudi Arabia and other tropical countries.Citation
Dunne, A., Carvalho, S., Morán, X. A. G., Calleja, M. L., & Jones, B. (2021). Localized effects of offshore aquaculture on water quality in a tropical sea. Marine Pollution Bulletin, 171, 112732. doi:10.1016/j.marpolbul.2021.112732Publisher
Elsevier BVJournal
Marine pollution bulletinPubMed ID
34330001Additional Links
https://linkinghub.elsevier.com/retrieve/pii/S0025326X21007669ae974a485f413a2113503eed53cd6c53
10.1016/j.marpolbul.2021.112732
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Except where otherwise noted, this item's license is described as This is an open access article under the CC BY-NC-ND license.
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