Migration strategies in fishes comprise a rich, ecologically important, and socioeconomically
valuable example of biological diversity. The variation and flexibility in migration is evident …

Coastal environments, in particular heavily populated semi-enclosed marginal seas and
coasts like the Baltic Sea region, are strongly affected by human activities. A multitude of …

Population genetic studies reveal biodiversity patterns and inform about drivers of
evolutionary differentiation and adaptation, including gene flow, drift and selection. This can …

Regime shifts in ecosystem structure and processes are typically studied from a temporal
perspective. Yet, theory predicts that in large ecosystems with environmental gradients …

Abstract In the Baltic Sea, the large predatory fish northern pike (Esox lucius L.) is important
for both recreational fisheries and ecosystem functioning. As existing fishery-independent …

Under rapid environmental change, opportunistic species may exhibit dramatic increases in
response to the altered conditions, and can in turn have large impacts on the ecosystem …

Marine protected areas (MPAs) have become a key component of conservation and
fisheries management to alleviate anthropogenic pressures. For MPA networks to efficiently …

The three-spined stickleback (Gasterosteus aculeatus L., hereafter 'stickleback') is a
common mesopredatory fish in marine, coastal and freshwater areas. In large parts of the …

The northern pike (Esox lucius) is an iconic predatory fish species of significant recreational
value and ecological role in the Baltic Sea. Some earlier studies indicate local declines of …

Coastal predatory fish are of key importance for the provisioning of ecosystem services in
the Baltic Sea. Worldwide, however, there has been a general and sharp decline in …