Discard reduction and unwanted species in trawling analysed
2017-08-31 18:11:00   copyfrom:    hits:

Oceanographic research vessel Miguel Oliver (Photo: Magrama)SPAINThursday, August 31, 2017,02:30 (GMT + 9)The oceano

Oceanographic research vessel Miguel Oliver. (Photo: Magrama)


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Thursday, August 31, 2017, 02:30 (GMT + 9)


The oceanographic research vessel Miguel Oliver has started a survey to study strategies to reduce discards and unwanted species, selectivity and survival in trawling in the Cantabrian-Northwest fishing zone, from the coast to a depth of 500 metres.

Specifically, with this survey -Descarsel 2017- an analysis on fishing selectivity will be carried out: parameters and selection curves for the target species, a study on the survival of discarded species and study on behavior of fish species.

Size sampling, size-weight relation and the automatic characterization of discarded species will also be carried out using new technology, such as iOBSERVER and RedBox for the study of the types of discards as well as the identification of problems related to their management.

With this research, the Ministry of Agriculture and Fisheries, Food and the Environment (MAGRAMA) hopes to obtain technical information on selectivity, using different net configurations and fishing strategies in certain areas of the national Cantabrian-Northwest fishing ground.

In this sense, underwater video images will provide graphical information on the selective fishing gear operation and the behaviour of species. In addition, the full monitoring and control of fishing operations with oceanographic vessel sensor systems will allow complete information and work under controlled conditions and more suitable to the objectives than on a commercial vessel.

This survey is part of Descarsel project, launched for the updated analysis of fishing selectivity in trawl gear with boards, in the Northwest Cantabrian fishery, through the use and technological development of more selective gadgets or fishing gear in the fishery . It is a question of offering proper compliance with the landing obligation, of the Common Fisheries Policy in the next years.

The results of this project will serve to broaden the knowledge of the fishing selectivity of the devices tested in Descarsel 2016 project and to introduce improvements and modifications of the devices that allow advancement in the discard reduction strategies in the fisheries under study.


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