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Combining acoustic and trawl data for estimating fish abundance

Objective

The principle objective of this project is to develop and apply appropriate combination methodologies for the use of both acoustic and trawl data from bottom trawl surveys. Bottom trawl surveys are the most important, fisheries independent, data source used in stock assessment of commercial ground-fish in European waters.

The inclusion of-simultaneously collected acoustic survey data, with its more resolved sampling structure, could potentially improve the precision and accuracy of these surveys at little extra cost.

Within this overall aim, the project has four main objectives:
To determine the relationships between the acoustic and trawl data.
To develop mathematical models, to calculate combined stock abundance indices.
To test the performance of these new indices within the stock assessment process.
To provide and test improved survey designs, which allow optimum collection of both types of data.

The project is based on the analysis of selected data sets of combined acoustic and bottom trawl surveys.

Coordinator

École Nationale Supérieure des Mines de Paris
Address
35 Rue Saint-honoré
77305 Fontainebleau
France

Participants (5)

FISHERIES RESEARCH SERVICES
United Kingdom
Address
Victoria Road, 375
Aberdeen
IFREMER
France
Address
150, Quai Gambetta
Boulogne-sur-mer
INSTITUTE OF MARINE RESEARCH
Norway
Address
Nordnesgaten 33
Bergen
THE CENTRE FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE
United Kingdom
Address
Pakefield Road
Lowestoft, Suffolk
THE QUEEN'S UNIVERSITY OF BELFAST
United Kingdom
Address
Newforge Lane
Belfast