Changing fish distributions challenge the effective management of European fisheries

Alan Ronan Baudron* (Corresponding Author), Thomas Brunel, Marie-Anne Blanchet, Manuel Hidalgo, Guillem Chust, Elliot Brown, Kristin M. Kleisner, Colin Millar, Brian R MacKenzie, Nikolaos Nikolioudakis, Jose Fernandes, Paul G. Fernandes

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Changes in fish distribution are being observed across the globe. In Europe’s Common Fisheries Policy, the share of the catch of each fish stock is split among management areas using a fixed allocation key known as ‘Relative Stability’: in each management area, member states get the same proportion of the total catch each year. That proportion is largely based on catches made by those member states in the 1970s. Changes in distribution can, therefore, result in a mismatch between quota shares and regional abundances within management areas, with potential repercussions for the status of fish stocks and the fisheries that depend on them. Assessing distribution changes is crucial to ensure adequate management and sustainable exploitation of our fish resources. We analysed scientific survey data using a three-tiered analytical approach to provide, for the first time, an overview of changes in distribution for 19 northeast Atlantic fish species encompassing 73 commercial stocks over 30 years. All species have experienced changes in distribution, five of which did so across management areas. A cross-species analysis suggested that shifts in areas of suitable thermal habitat, and density-dependent use of these areas, are at least partly responsible for the observed changes. These findings challenge the current use of Relative Stability to allocate quotas.
Original languageEnglish
Number of pages12
JournalEcography
Early online date23 Jan 2020
DOIs
Publication statusE-pub ahead of print - 23 Jan 2020

Fingerprint

fishery
fisheries
fish
Common Fisheries Policy
distribution
heat
habitat
resource
habitats
fish stock

Keywords

  • fish distribution
  • fisheries management
  • relative stability
  • northeast Atlantic
  • suitable habitat
  • warming seas
  • density-dependence
  • RECRUITMENT
  • GOVERNANCE
  • CLIMATE-CHANGE
  • SHIFTS
  • SEA
  • ABUNDANCE
  • PREDATOR
  • NORTHEAST ATLANTIC MACKEREL
  • EXPANSION
  • IMPACTS

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Changing fish distributions challenge the effective management of European fisheries. / Baudron, Alan Ronan (Corresponding Author); Brunel, Thomas; Blanchet, Marie-Anne; Hidalgo, Manuel; Chust, Guillem; Brown, Elliot; Kleisner, Kristin M.; Millar, Colin; MacKenzie, Brian R; Nikolioudakis, Nikolaos; Fernandes, Jose; Fernandes, Paul G.

In: Ecography, 23.01.2020.

Research output: Contribution to journalArticle

Baudron, AR, Brunel, T, Blanchet, M-A, Hidalgo, M, Chust, G, Brown, E, Kleisner, KM, Millar, C, MacKenzie, BR, Nikolioudakis, N, Fernandes, J & Fernandes, PG 2020, 'Changing fish distributions challenge the effective management of European fisheries', Ecography. https://doi.org/10.1111/ecog.04864
Baudron AR, Brunel T, Blanchet M-A, Hidalgo M, Chust G, Brown E et al. Changing fish distributions challenge the effective management of European fisheries. Ecography. 2020 Jan 23. https://doi.org/10.1111/ecog.04864
Baudron, Alan Ronan ; Brunel, Thomas ; Blanchet, Marie-Anne ; Hidalgo, Manuel ; Chust, Guillem ; Brown, Elliot ; Kleisner, Kristin M. ; Millar, Colin ; MacKenzie, Brian R ; Nikolioudakis, Nikolaos ; Fernandes, Jose ; Fernandes, Paul G. / Changing fish distributions challenge the effective management of European fisheries. In: Ecography. 2020.
@article{3e300c262f8a44579f78277ccaa302df,
title = "Changing fish distributions challenge the effective management of European fisheries",
abstract = "Changes in fish distribution are being observed across the globe. In Europe’s Common Fisheries Policy, the share of the catch of each fish stock is split among management areas using a fixed allocation key known as ‘Relative Stability’: in each management area, member states get the same proportion of the total catch each year. That proportion is largely based on catches made by those member states in the 1970s. Changes in distribution can, therefore, result in a mismatch between quota shares and regional abundances within management areas, with potential repercussions for the status of fish stocks and the fisheries that depend on them. Assessing distribution changes is crucial to ensure adequate management and sustainable exploitation of our fish resources. We analysed scientific survey data using a three-tiered analytical approach to provide, for the first time, an overview of changes in distribution for 19 northeast Atlantic fish species encompassing 73 commercial stocks over 30 years. All species have experienced changes in distribution, five of which did so across management areas. A cross-species analysis suggested that shifts in areas of suitable thermal habitat, and density-dependent use of these areas, are at least partly responsible for the observed changes. These findings challenge the current use of Relative Stability to allocate quotas.",
keywords = "fish distribution, fisheries management, relative stability, northeast Atlantic, suitable habitat, warming seas, density-dependence, RECRUITMENT, GOVERNANCE, CLIMATE-CHANGE, SHIFTS, SEA, ABUNDANCE, PREDATOR, NORTHEAST ATLANTIC MACKEREL, EXPANSION, IMPACTS",
author = "Baudron, {Alan Ronan} and Thomas Brunel and Marie-Anne Blanchet and Manuel Hidalgo and Guillem Chust and Elliot Brown and Kleisner, {Kristin M.} and Colin Millar and MacKenzie, {Brian R} and Nikolaos Nikolioudakis and Jose Fernandes and Fernandes, {Paul G.}",
note = "The authors wish to thank the participants of the ICES workshop “Report of the Working Group on Fish Distribution (WKFISHDISH)” (http://www.ices.dk/news-and-events/newsarchive/news/Pages/Substantial-changes-in-fish-distribution-identified-by-ICES.aspx). This work was supported by the Horizon 2020 European research projects ClimeFish (grant No. 677039) and CERES (grant No. 678193). The authors also would like to acknowledge the following funding sources: the Danish Recreational Fishers Fund - Marine Fiskepleje; the Research Council of Norway (EcoNorSe, grant No. 243895); the Gipuzkoa Talent Fellowships programme - Gipuzkoa Provincial Council, Spain.",
year = "2020",
month = "1",
day = "23",
doi = "10.1111/ecog.04864",
language = "English",
journal = "Ecography",
issn = "0906-7590",
publisher = "Wiley",

}

TY - JOUR

T1 - Changing fish distributions challenge the effective management of European fisheries

AU - Baudron, Alan Ronan

AU - Brunel, Thomas

AU - Blanchet, Marie-Anne

AU - Hidalgo, Manuel

AU - Chust, Guillem

AU - Brown, Elliot

AU - Kleisner, Kristin M.

AU - Millar, Colin

AU - MacKenzie, Brian R

AU - Nikolioudakis, Nikolaos

AU - Fernandes, Jose

AU - Fernandes, Paul G.

N1 - The authors wish to thank the participants of the ICES workshop “Report of the Working Group on Fish Distribution (WKFISHDISH)” (http://www.ices.dk/news-and-events/newsarchive/news/Pages/Substantial-changes-in-fish-distribution-identified-by-ICES.aspx). This work was supported by the Horizon 2020 European research projects ClimeFish (grant No. 677039) and CERES (grant No. 678193). The authors also would like to acknowledge the following funding sources: the Danish Recreational Fishers Fund - Marine Fiskepleje; the Research Council of Norway (EcoNorSe, grant No. 243895); the Gipuzkoa Talent Fellowships programme - Gipuzkoa Provincial Council, Spain.

PY - 2020/1/23

Y1 - 2020/1/23

N2 - Changes in fish distribution are being observed across the globe. In Europe’s Common Fisheries Policy, the share of the catch of each fish stock is split among management areas using a fixed allocation key known as ‘Relative Stability’: in each management area, member states get the same proportion of the total catch each year. That proportion is largely based on catches made by those member states in the 1970s. Changes in distribution can, therefore, result in a mismatch between quota shares and regional abundances within management areas, with potential repercussions for the status of fish stocks and the fisheries that depend on them. Assessing distribution changes is crucial to ensure adequate management and sustainable exploitation of our fish resources. We analysed scientific survey data using a three-tiered analytical approach to provide, for the first time, an overview of changes in distribution for 19 northeast Atlantic fish species encompassing 73 commercial stocks over 30 years. All species have experienced changes in distribution, five of which did so across management areas. A cross-species analysis suggested that shifts in areas of suitable thermal habitat, and density-dependent use of these areas, are at least partly responsible for the observed changes. These findings challenge the current use of Relative Stability to allocate quotas.

AB - Changes in fish distribution are being observed across the globe. In Europe’s Common Fisheries Policy, the share of the catch of each fish stock is split among management areas using a fixed allocation key known as ‘Relative Stability’: in each management area, member states get the same proportion of the total catch each year. That proportion is largely based on catches made by those member states in the 1970s. Changes in distribution can, therefore, result in a mismatch between quota shares and regional abundances within management areas, with potential repercussions for the status of fish stocks and the fisheries that depend on them. Assessing distribution changes is crucial to ensure adequate management and sustainable exploitation of our fish resources. We analysed scientific survey data using a three-tiered analytical approach to provide, for the first time, an overview of changes in distribution for 19 northeast Atlantic fish species encompassing 73 commercial stocks over 30 years. All species have experienced changes in distribution, five of which did so across management areas. A cross-species analysis suggested that shifts in areas of suitable thermal habitat, and density-dependent use of these areas, are at least partly responsible for the observed changes. These findings challenge the current use of Relative Stability to allocate quotas.

KW - fish distribution

KW - fisheries management

KW - relative stability

KW - northeast Atlantic

KW - suitable habitat

KW - warming seas

KW - density-dependence

KW - RECRUITMENT

KW - GOVERNANCE

KW - CLIMATE-CHANGE

KW - SHIFTS

KW - SEA

KW - ABUNDANCE

KW - PREDATOR

KW - NORTHEAST ATLANTIC MACKEREL

KW - EXPANSION

KW - IMPACTS

UR - http://www.scopus.com/inward/record.url?scp=85078680304&partnerID=8YFLogxK

U2 - 10.1111/ecog.04864

DO - 10.1111/ecog.04864

M3 - Article

JO - Ecography

JF - Ecography

SN - 0906-7590

ER -