Shifting invertebrate distributions in the Barents Sea since pre-1900
Permanent lenke
https://hdl.handle.net/10037/35141Dato
2024-08-23Type
Journal articleTidsskriftartikkel
Peer reviewed
Forfatter
Calvet, Nathalie; Bluhm, Bodil Annikki Ulla Barbro; Yoccoz, Nigel Gilles; Altenburger, AndreasSammendrag
Marine invertebrate habitats are experiencing warming, and oceanic carbon
dioxide levels are on the rise. These changes result in shifts in species
distributions. Monitoring and understanding these shifts provides vital
information because each species plays a unique ecological role, and the human
utilization of marine species is intrinsically linked to their geographic locations.
Here, we examine distribution shifts of marine invertebrates in the Barents Sea
since pre-1900. Using data from the Global Biodiversity Information Facility, we
analyzed species occurrences across warm, cold and mixed temperature zones,
distinguishing between benthic and pelagic taxa. Our findings indicate community
shifts in each of five separated time periods, with the most pronounced shifts
occurring after 1980 in the cold and mixed zones, and earlier in the warm zone.
The significant biogeographical changes at the community scale occurred both in
benthic and pelagic realms, yet with differing trajectories in the period past 2000,
and largely coincided with increased Atlantic Water inflow and reduced ice cover.
Several invertebrate taxa exhibited a northward movement, falling into two
categories: species migrating into the Barents Sea from the Norwegian mainland
shelf, and those relocating from the southern Barents Sea to areas with mixed and
colder temperatures. Some of these species may serve as indicator species for
monitoring ecosystem and community change. The study highlights the
importance of long-term datasets in quantifying community distribution shifts
and understanding their ecological impacts.
Forlag
Frontiers MediaSitering
Calvet, Bluhm, Yoccoz, Altenburger. Shifting invertebrate distributions in the Barents Sea since pre-1900. Frontiers in Marine Science. 2024Metadata
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