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- W1988171258 abstract "AEI Aquaculture Environment Interactions Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections AEI 1:21-32 (2010) - DOI: https://doi.org/10.3354/aei0004 REVIEW Host density thresholds and disease control for fisheries and aquaculture Martin Krkošek* School of Aquatic and Fishery Sciences, University of Washington, Seattle, Washington, USA *Email: mkrkosek@u.washington.edu ABSTRACT: The outbreak, persistence, and eradication of infectious diseases often depend on the density of hosts. In coastal seas, many fisheries are fully or over-exploited; meanwhile, farmed populations are increasing rapidly with aquaculture growth. Marine aquaculture facilities are typically open to the surrounding ecosystem and, therefore, wild and farmed populations are connected by their shared parasites. At the core of epidemiological theory are host density thresholds, above which diseases can persist or invade and below which diseases can be eradicated. Host density thresholds in aquaculture–fishery interactions likely function at regional scales that encompass multiple farms, which are connected by pathogen dispersal and the movement of wild hosts. Sudden outbreaks of parasitic copepods in wild-farmed salmon systems may be linked to aquaculture growth exceeding host density thresholds. Abiotic (e.g. temperature and salinity), management (e.g. husbandry and farm siting), and biotic factors (e.g. migrations of wild hosts) likely affect threshold values. A connected wild-farmed host population can exceed a host density threshold due to an influx of wild hosts via migration, increases in aquaculture production, or environmental change such as climate warming. Coastal management and policy should heed the disease implications of climate warming, aquaculture growth, and fisheries restoration that suggest increasing host densities and decreasing threshold values. KEY WORDS: Epidemiology · Aquaculture · Fisheries · Conservation · Threshold · Disease Full text in pdf format PreviousNextCite this article as: Krkošek M (2010) Host density thresholds and disease control for fisheries and aquaculture. Aquacult Environ Interact 1:21-32. https://doi.org/10.3354/aei0004 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in AEI Vol. 1, No. 1. Online publication date: May 20, 2010 Print ISSN: 1869-215X; Online ISSN: 1869-7534 Copyright © 2010 Inter-Research." @default.
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- W1988171258 title "Host density thresholds and disease control for fisheries and aquaculture" @default.
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