Programme Seal and Fisheries in Sweden and the future? Sven Gunnar - - PowerPoint PPT Presentation
Programme Seal and Fisheries in Sweden and the future? Sven Gunnar Lunneryd Department of Aquatic Resources , Swedish University of Agricultural Sciences The Seals and Fisheries Program : Started 1994, a council of authorities and stakeholders as
Sven Gunnar Lunneryd Department of Aquatic Resources, Swedish University of Agricultural Sciences
Grey seal
5000 7 000 10 000 15 000 22 000 33 000 49 000 Year 1994 1998 2002 2006 2010 2014 2018
The main goal of the program is to develop mitigation methods to minimize the increasing seal and fisheries conflict
The Seals and Fisheries Program : Started 1994, a council of authorities and stakeholders as fishermen
Seal grid in the entrance
Bornholm
Asumptions: Seals eat the same amount fish as the catch during a seal interaction
Swedish Water Agency for Water Management, SWAM Königson, S., Lunneryd, S-G., Stridh, H. and Sundqvist, F. (2009) Grey Seal Predation in Cod Gillnet Fisheries in the Central Baltic Sea. J. Northw. Atl. Fish. Sci., Vol. 42 Königson et al. 2019. Hidden losses in cod gillnet (in prep.)
A grey seal eat around 5 kg fish every day. Grey seal eat more or less only cod in south Baltic
Theoretical not more then 170 seals that cause the problem!
Coastal Laboratory
Pontoon traps is not the best option, as the trap need to stand at the bottom
Ystad 2015
A commercial fishery started 2017 with 3 fishermen in county Blekinge But 2019 very low catches
40 393 228 288 265 290 209
No pots
Long towing ropes extending from the wings of the net that herd the fish into the path of the net.
So far no impact of the botoom
Vendace
Flounder
To succeed in gear development we need:
Active fishermen, who invest time and effort Innovators and gear manufacturers Agencies (rules, economic support and research) Cooperation in the Baltic