Date and Time: Thursday 11 October 2018 from 15:00 to 18:30 followed by a dinner reception.
Location: EUfishmeal, Axeltorv 3, 1609 Copenhagen V
Objectives: The conference will present and discuss recent findings of changes in fish stock productivity and food webs from an ecosystem and management perspective.
Forage fish populations support large scale fisheries and are key components of marine ecosystems, linking secondary production to higher trophic levels. A recent study from the North Sea shows that the abundances of short-lived pelagic species are highly dynamic and respond rapidly to changes in food availability. Preliminary model predictions of the impact of increasing temperatures in the North East Atlantic till 2050 show: Substantial increase in biomass of key species Mackerel and Blue Whiting, moderate reduction in biomass of Herring and major increase in the biomass of the plankton species Calanus finmarchicus.
The increasing marine mammal populations in the North Atlantic Seas may impact the potential fisheries yields.
It is crucial that shifts in ecosystem productivity and food webs are thoroughly documented and made apparent to managers and stakeholders.
15:00-15:10 Welcome and introduction
15:10-16:25 Session on Forage Fish
15:10 “Optimal fisheries yields in an ecosystem perspective” (Villy Christensen, UBC)
15:35 “Shifts in North Sea forage fish productivity and potential fisheries yield” (Mikael van Deurs, DTU Aqua)
16:00 “The North East Atlantic pelagic fisheries case study in ClimeFish” (Kjell Rong Utne, IMR)
16:25-16:45 coffee break
16:45-17:50 Session on Marine Mammals
16:45 “How much fish is eaten by marine mammals in the Barents Sea?” (Mette Skern-Mauritzen, IMR)
17:10 ”The potential direct and indirect effects of grey seal on Baltic cod” (Jane Behrens, DTU Aqua)
17:35 “Are the growing marine mammal populations in West Greenland reducing the potential fisheries yields?” (Jens Stubkjær, AMP)
17:50-18:30 Panel discussion
“How to optimize fisheries yields from changing ecosystems?”
Moderator: Villy Christensen (tbc)
Participants: Mikael van Deurs, Kjell Rong Utne, Mette Skern-Mauritzen, Jane Behrens, Jens Stubkjær, Henrik Sparholt (the Fmsy project), Mark Dickey-Collas (tbc) (ICES), WWF (tbc)
Kl. 19:00 Dinner reception
To participate in the Conference register at: EventBrite-ECO-Conference