Bioenergetic influence on the historical development and decline of industrial fisheries
Guiet, Jérôme (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Galbraith, Eric (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Bianchi, Daniele (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Cheung, William W. L. (University of British Columbia. Institute for the Oceans and Fisheries (Canada))

Fecha:	2020
Resumen:	The global wild capture fishery expanded rapidly over the 20th century as fishing technology improved, peaking in the 1990s as most fisheries transitioned to fully- or over-exploited status. Historical records for individual large marine ecosystems (LMEs) tend to echo this same progression, but with local variations in the timing and abruptness of catch peaks. Here, we provide objective descriptions of these catch peaks, which generally progressed from high- to low-latitude LMEs, and attribute the temporal progression to a combination of economic and ecological factors. We show that the ecological factors can be remarkably strong by using a spatially resolved, observationally-constrained, coupled macroecological-economic model to which we impose an idealized, globally homogeneous increase in catchability. The globally-uniform technology creep produces a spatial progression of fishing from high-to-low latitudes that is similar to observations, primarily due to the impact of temperature on ecosystem metabolism. In colder LMEs, low respiration rates allow the build-up of larger pristine standing stocks, so that high-latitude fisheries are profitable earlier, at lower levels of fishing technology. We suggest that these bioenergetic characteristics contributed significantly to the historical progression of this human-ecological system.
Ayudas:	European Commission 682602 Ministerio de Economía y Competitividad MDM-2015-0552
Nota:	Unidad de excelencia María de Maeztu CEX2019-000940-M
Nota:	Identificadors digitals: Digital object identifier for the 'European Research Council' (http://dx.doi.org/10.13039/501100000781) Digital object identifier for 'Horizon 2020' (http://dx.doi.org/10.13039/501100007601) - BIGSEA project
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Publicado en:	ICES Journal of Marine Science, Vol. 77, Issue 5 (September 2020) , p. 1854-1863, ISSN 1095-9289

DOI: 10.1093/icesjms/fsaa044

10 p, 1.1 MB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Institut de Ciència i Tecnologia Ambientals (ICTA) > Integrated Earth System Dynamics Laboratory (IESD)
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