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Workshop on economic implications of changes in the structure of fisheries landings at regional and fleet levels

Location: Paris (France)
Event Type: Workshop
Event Date: 2008-05-27    
End Date: 2008-05-28

Event Description:
The workshop is organised as part of the French funded research program “CHALOUPE” (, which contributes to the MarBEF Responsive Mode Project “Causes and consequences of changing marine biodiversity, a fish and fisheries perspective”.

Recent work in the domain of fisheries ecology has shown that major changes are occurring in the structure of fisheries landings at various scales, in terms of catch composition. Selective fishing pressure on more highly valued components of fish communities / stocks are amongst the key factors proposed to explain these changes. Under de facto open access conditions, it is suggested that sequential over-harvesting of higher valued fish and/or fish species leads to modifications in the structure of both fish communities / populations, and fisheries landings. An important research issue is the identification of the economic drivers of sequential harvesting processes, and their implication in terms of the observed and potential total value of landings from a given fish community. A general schematic of the dynamics which need to be considered is provided in the figure below.

The workshop will be centred on the analysis of (i) the determinants of short- and medium-term differences and changes in the prices of fish landed ; and (ii) implications of these differences and changes for the long-term evolution of the value of fisheries production. Key questions which will be considered include:

- What data on the long-term evolution of landings in value and associated fishing fleet characteristics is available?
- Based on this data, what trends can be detected in the species structure of landings and in the relative prices of species landed, with which consequences on the total value of fisheries production?
- What assumptions can be made concerning the relative value of commercial species and fish, depending on their intrinsic characteristics and on the markets they are destined to, and its evolution over time?
- How is this influenced by factors independent of fishing (e.g. international trade)?
- Can the comparison of these evolutions with those measured concerning the structure of fish communities improve our understanding of the relative role of environmental versus fishing drivers of change?

Contact email:

Event programme:
Structure: selection in advance of 8 to 10 presentations maximum on the basis of which discussions will be organised.
Due to the participation of francophone colleagues, working language for the workshop is planned to be mainly French, although presentations/discussions may take place in English depending on participation.

Collaborators and organisers:
Olivier Thébaud (Ifremer, Brest, France) –
Pascal Le Floc’h (University of Western Brittany, Quimper, France) –

Website url: 

Registration form: 

Registration fee: 

Relevant costs that should be taken by MARBEF:  

Possibility for day-care centres (facilities for children): No

MarBEF supported event: No

Event within Framework of MARBEF: (none)

Maximum number of participants: 20

External participants (non MARBEF) allowed: Yes

Posted by wardappeltans on 2008-05-05 and approved by webmaster