Data/hora: 10/06/2024 15:25:58

Provedor de dados: | 5
País: | France
Título: | Effect of production quotas on economic and environmental values of growth rate and feed efficiency in sea cage fish farming
Autores: | Besson, Mathieu; De Boer, I. J. M.; Vandeputte, Marc; Van Arendonk, J. A. M.; Quillet, E.; Komen, H.; Aubin, J.
Data: | 2017-03
Ano: | 2017
Resumo: | In sea cage fish farming, production quotas aim to constrain the impact of fish farming on the surrounding ecosystem. It is unknown how these quotas affect economic profitability and environmental impact of genetic improvement. We combined bioeconomic modelling with life cycle assessment (LCA) to calculate the economic (EV) and environmental (ENV) values of thermal growth coefficient (TGC) and feed conversion ratio (FCR) of sea bass reared in sea cages, given four types of quota commonly used in Europe: annual production (Qprod), annual feed distributed (Qannual_ feed), standing stock (Qstock), and daily feed distributed (Qdaily_ feed). ENV were calculated for LCA impact categories climate change, eutrophication and acidification. ENV were expressed per ton of fish produced per year (ENV(fish)) and per farm per year (ENV(farm)). Results show that irrespective of quota used, EV of FCR as well as ENV(fish) and ENV(farm) were always positive, meaning that improving FCR increased profit and decreased environmental impacts. However, the EV and the ENV(fish) of TGC were positive only when quota was Qstock or Qdaily_ feed. Moreover, the ENV(farm) of TGC was negative in Qstock and Qdaily_ feed quotas, meaning that improving TGC increased the environmental impact of the farm. We conclude that Qstock quota and Qdaily_ feed quota are economically favorable to a genetic improvement of TGC, a major trait for farmers. However, improving TGC increases the environmental impact of the farm. Improving FCR represents a good opportunity to balance out this increase but more information on its genetic background is needed to develop breeding programs improving FCR.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00377/48778/49176.pdf

http://archimer.ifremer.fr/doc/00377/48778/49177.pdf

http://archimer.ifremer.fr/doc/00377/48778/49178.pdf

http://archimer.ifremer.fr/doc/00377/48778/49179.pdf

http://archimer.ifremer.fr/doc/00377/48778/49180.pdf

http://archimer.ifremer.fr/doc/00377/48778/49181.pdf

http://archimer.ifremer.fr/doc/00377/48778/49182.pdf

http://archimer.ifremer.fr/doc/00377/48778/49183.pdf

http://archimer.ifremer.fr/doc/00377/48778/49184.pdf

http://archimer.ifremer.fr/doc/00377/48778/49185.pdf

DOI:10.1371/journal.pone.0173131

http://archimer.ifremer.fr/doc/00377/48778/

Editor: | Public Library Science
Formato: | application/pdf
Fonte: | Plos One (1932-6203) (Public Library Science), 2017-03 , Vol. 12 , N. 3 , P. e0173131. (1-15)

Fonte:

2017 Besson et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

info:eu-repo/semantics/openAccess

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