Objective
Current fish stock assessment is based primarily on fisheries data (catches/landings) and models of population demography (cohort analysis). Collapse of important fish stocks in the past (e.g. cod in Canada) have revealed that fisheries based demographic indices suffer from a number of limitations. Probably the most serious limitation is that the indication of population collapse is only perceived very late with such indices, in comparison with other biological indices.
The purpose of this project is to develop fish stock assessment tools based on survey data only and evaluate how these perform in producing advice within defined management procedures. The project spans several disciplines (i.e. population biology, survey methods, stock assessment, management), with the objectives of (1) producing a comprehensive diagnostic of population status using survey-based population demography and biological indices and (2) evaluate its performance in a management context.
A variety of methods is proposed to obtain direct estimates (and associated errors) of population abundance, mortality, spatial occupation and maturity at age. Direct demographic estimates feed assessment population models to deliver model-based estimates of abundance, survey catchability, natural and fishing mortality. Different categories of population assessment models are developed for to different biological situations. The simplest models track the dynamics in total abundance while others are age or length structured. The assessment procedure is evaluated by simulation testing using a framework containing a population dynamics model, an observation model, an assessment model and an harvest rule model. The ability of the assessment procedure to capture changes in population biology and survey catchability is evaluated. The sensitivity of the assessment procedure to uncertainties in survey estimates is also tested, so that alternative survey designs can be explored...
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- agricultural sciences agriculture, forestry, and fisheries fisheries
- natural sciences computer and information sciences software
- social sciences sociology demography mortality
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2002-SSP-1
See other projects for this call
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
ISSY-LES-MOULINEAUX
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.