Director

Secretariat

Wencke Griemsmann
Institute of Sea Fisheries

Herwigstraße 31
27572 Bremerhaven
Phone: +49 471 94460 101
Fax: +49 471 94460 199
wencke.griemsmann@thuenen.de


Analyses of fishery effort in German fishing fleets

Project

Fischkutter mit Netz (c) Thünen-Institut/Sakis Kroupis
Ein Fischkutter mit Schleppnetz (© Thünen-Institut/Sakis Kroupis)

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

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


Involved Thünen-Partners


Duration

1.2008 - 12.2020

More Information

Projekt type:
Project status: ongoing

Publikationen

hits: 6

  1. 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
  2. Holmes SJ, Carlshamre S, Cole H, Davie S, Demaneche S, Dolder PJ, Gil Herrera J, Kempf A, Kovsars M, Ligas A, O’Hea 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
  3. 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
  4. 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
  5. 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
  6. 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