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Effect of fishing-induced alterations in population structure and life history traits on the response of worldwide fisheries to climate

Workshop (Foresight)
EUR-OCEANS organisation / funding

Leading scientists and organizations

  • Tristan ROUYER
  • Manuel HIDALGO
    Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biology, University of Oslo.
    P.O. Box 1066 Blindern - NO-0316 Oslo -Norway

in cooperation with

  • Chih-Hao HSIEH, Institute of Oceanography National Taiwan University, Taipei, Taiwan
  • Juan-Carlos MOLINERO,  Leibniz-Institute of Marine Sciences, Kiel, Germany


International Scientists
Local Scientists
(CEES, University of Oslo)
Chen-Yi Tu
National Taïwan University, Taïwan
Alexander Sadykov
Chih-Hao Hsieh
National Taïwan University, Taïwan
Dag Hjerman
Jean-Marc Fromentin
Ifremer, France
Geir Ottersen
Jan Geert Hiddink
University Of Wales, Bangor, UK
Jan Ohlberger
Manuel Hidalgo
CEES, Norway
Joel Durant
Michele Casini
Swedish University of Agricultural Sciences
Lauren Rogers
Paul Venturelli
University of Minnesota, USA
Leif Chr. Stige
Tristan Rouyer
CEES, Norway
Nils Chr. Stenseth
Wen-Bin Huang
National Dong Hwa University, Taiwan
Yongjun Tian
Japan Sea National Fisheries Research Institute

Topic and Objectives

The scientific focus of the workshop is on the ecological implications of the selective exploitation by fisheries, which is typically a size-selective process that preferentially removes larger and older individuals. Fishing-induced alterations may change the response of a population to its physical environment,which may in turn affect population dynamics, community structures and ecosystem functioning. Understanding how exploitation affects the stability and the sustainability of fish resources is crucial for designing scenarios for marine ecosystems under anthropogenic change.

The WS aims at providing a forum to exchange knowledge, ideas and to define collaborative approaches to use a recently assembled large dataset.

The potential outputs are as follows:

  • Original research approaches towards a common scientific question promoted by the diversity of the attending scientists. The workshop intends to be a forum where concrete analyses will be presented and designed.
  • It therefore should lead to the production of high-profile scientific publications
  • A synthesis of the outcomes of the workshop is intended to be submitted to an appropriate peer-reviewed journal.
  • The workshop will be a key step to cement and develop collaborative work at the worldwide scale, by providing a platform to define a roadmap identifying the concrete steps towards future common scientific objectives.

The workshop will link-up and add value to the ongoing project “Investigating fishing effects on age structures of exploited fishes for the world fisheries” (2009-2011) led by Prof. Chih-Hao Hsieh from the Institute of Oceanography at the National Taïwan University, funded by the Taïwanese Government and the National Science Fundation of the United States of America. While this project allowed for building an extensive data-set, the present workshop will provide the basis to identify gaps in the knowledge, define particular scientific questions, approaches and collaborations.

Report and other outputs

(last updated: Nov. 2011)

A WS report is available below in the attachments section of this page.

In brief (extract from report): "The workshop provided a forum where questions relating to the demographic changes in worldwide fisheries have been discussed. It also provided the opportunity to present studies from different perspectives and to design an analysis where the effort of the whole group will be put to address a common scientific question. The workshop fostered discussions between members and lead to develop collaborations among them. In terms of publication, at least one analysis presented during the workshop and using the database is at its final stages and could be submitted before the end of the year. This analysis will be the first product of the group. However, the group renounced to immediately publish a synthesis of the outcomes of the workshop. The work considered is too preliminary and too broad to provide a focused contribution on the advances in the field. Furthermore, the common analysis drafted during the workshop will present a more concrete contribution to the field."


Activity leader(s): 
Tristan Rouyer and Manuel HIDALGO, Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biology, University of Oslo
Center for Ecological and Evolutionary Synthesis (CEES), Oslo, Norway
Financial support: 
10 k€ from EO
Start date: 
End date: 

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