Analyses of fishery effort in German fishing fleets

Project

Analyses of fishery effort (log-book data and VMS) and its relationship with fishing mortality and population dynamics of fish stocks

The project aims at a better understanding of the relationship between fisheries and population dynamics of fish stocks in order to better predict and justify the necessity of fleet capacity adjustment measures.

Background and Objective

Fischeries are currently regulated via total allowable catches (TACs) and effort managment. It is hoped that effort managment can help to protect fish stocks from overfishing and illegal fishing. Another aim of this project is to evaluate whether there is a balance between sustainable fishing opportunities and the capacity of the German fishing fleets.

Target Group

Policy, Science, Public

Approach

Each year, relevant information is extracted from German logbook data to conduct analyses on the effort management in European waters. The data are provided to international working groups. Data are also used to address specific questions from the German Ministry of Food and Agriculture regarding fishing activities of the German fleets.

Our Research Questions

How much effort is utilised by the German fleets in various areas and which gears have been mainly used?
Does the current effort level lead to overfishing of stocks in mixed fisheries under the assumption of constant catchability?

Preliminary Results

Advice to BMEL and EU with regard to fishing effort
Reports of STECF sub-groups on effort management
ICES mixed fisheries advice

Links and Downloads

<ul> <li><a href="http://www.ices.dk" target="_blank">ICES</a></li> <li><a href="http://stecf.jrc.ec.europa.eu" target="_blank">STECF</a></li> </ul>

Thünen-Contact

Kempf, Alexander Institute of Sea Fisheries

Involved Thünen-Partners

Duration

1.2008 - 12.2020

More Information

Projekt type:
Project status: ongoing

Publikationen

Holmes SJ, Carlshamre S, Davie S, Demaneche S, Dolder PJ, Gil Herrera J, Kempf A, Abella JA, Andersen J, Döring R, Stransky C, et al (2014) Evaluation of fishing effort regimes in European waters - part 1 (STECF-14-12). Luxembourg: Publications Office of the European Union, 480 p, JRC Sci Pol Rep, doi:10.2788/12238
Holmes SJ, Carlshamre S, Cole H, Davie S, Demaneche S, Dolder PJ, Gil Herrera J, Kempf A, Kovsars M, Ligas A, OHea B, Ozernaja O, Raid T, Ribeiro C, Silva C, van der Kamp P, Vanhee W, Vermard Y, Döring R, Stransky C, et al (2014) Evaluation of fishing effort regimes in European waters - part 2 (STECF-14-20). Luxembourg: Publications Office of the European Union, 844 p, JRC Sci Pol Rep, doi:10.2788/951989
Rätz H-J, Kempf A, Döring R, Stransky C, et al (2013) Evaluation of fishing effort regimes in European waters - part 1 (STECF-13-13). Luxembourg: Publications Office of the European Union, 691 p, doi:10.2788/95715
Kraak SBM, Bailey N, Cardinale M, Darby C, De Oliveira JA, Eero M, Graham N, Holmes SJ, Jakobsen T, Kempf A, Kirkegaard E, Powell J, Scott RD, Simmonds EJ, Ulrich C, Vanhee W, Vinther M (2013) Lessons for fisheries management from the EU cod recovery plan. Mar Policy 37:200-213, DOI:10.1016/j.marpol.2012.05.002
Rätz H-J, Mitrakis N, Casey J, Abella JA, Andersen J, Bailey N, Bertignac M, Cardinale M, Curtis H, Daskalov G, Delaney A, Döring R, Garcia Rodriguez M, Gascuel D, Graham N, Gustavsson T, Jennings S, Stransky C, Kempf A, Rätz H-J (2012) Evaluation of fishing effort regimes in European waters - part 1 (STECF-12-09). Luxembourg: Publications Office of the European Union, 379 p, EUR Sci Techn Res Ser
Casey J, Abella JA, Andersen JL, Bailey N, Bertignac M, Cardinale M, Curtis H, Daskalov G, Delaney A, Döring R, Garcia Rodriguez M, Gascuel D, Graham N, Gustavsson T, Jennings S, Kenny A, Kirkegaard E, Kraak SBM, Kempf A, Stransky C, et al (2011) Evaluation of fishing effort regimes in the Baltic Sea (STECF-11-11). Luxembourg: Publications Office of the European Union, 110 p, JRC Sci Techn Rep

Director

Deputy

Secretariat