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The Baltic Grey Seal numbers increase by 5% annually. Still, our knowledge of their effects on coastal fish populations is relatively low.
Repercussions upon the ecosystems functionality.
Coastal fish populations are suffering from fishing, habitat-exploitation and predation by stickleback and Cormorant. Increased seal-predation could result in the numbers of species such as pike, bass and perch to reduce more.
To successfully manage the baltic grey seal, knowledge on their affect on the coastal ecosystems is important.
What do seals eat?
Today we know little about the archipelagic seals diet. An important part of our project is to gather more data. This is accomplished in part by collecting seal droppings for analyzation.
Genom att kombinera data på dietens sammansättning med sälförekomstdata kan man beräkna gråsälens uttag av kustfisk, och därmed påverkan på bestånden.
Combining the data of seal presence along with the composition of its diet numbers of coastal fish populations.
Our project in part focuses specifically on the grey seals effect on pike populations , weighed against the fact that archipelagic pike abundance has declined dramatically over a number of years.

Foundation Voice of the Ocean
Rydboholmgård, 184 94 Åkersberga Sweden

hello@voiceoftheocean.org

Ola Oskarsson
Project Manager Voto Marine Operations

ola.o@voiceoftheocean.org

Robert Westerberg
Communications & Project Manager

robert.westerberg@voiceoftheocean.org

Johan Candert
Project Manager

johan.candert@voiceoftheocean.org