2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/24/2018 | 9:30 AM - 9:45 AM | DRIVERS OF FRESHWATER FISH BIODIVERSITY DEPEND ON LOCATION AND ISOLATION IN THE CIRCUMPOLAR ARCTIC | 420 B
DRIVERS OF FRESHWATER FISH BIODIVERSITY DEPEND ON LOCATION AND ISOLATION IN THE CIRCUMPOLAR ARCTIC
Fish are an important component of freshwater ecosystems, but remain poorly understood throughout much of the Arctic. The biodiversity of fishes maintains the structure, function, and integrity of Arctic freshwater ecosystems; however, current anthropogenic forces (e.g., climate and land-use) are initiating rapid changes in freshwater systems that threaten biodiversity. To describe the complex spatial patterns of biodiversity across the circumpolar Arctic, we examined alpha and beta diversity using data gathered for the Arctic Freshwater Biodiversity Monitoring Plan. There are c. 125 species of freshwater fish occurring across the Arctic; we have data on 44% of species. Freshwater fish incidence data showed high turnover of species across geographic regions (e.g., Fennoscandia), with few common species (< 10) occurring across regions. Detailed analysis of three regions indicated little difference in overall beta diversity. However, significant differences in diversity components resulted from variation in alpha diversity and species composition for island versus mainland fish communities. Describing patterns of diversity across large spatial scales is one of the first steps in accurately determining the status of freshwater fishes, what stressors play a role in biodiversity change, and how freshwater fish biodiversity should be monitored.
- Biodiversity
- Fish
- Landscape
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Presenters/Authors
Sarah Laske
(), US Geological Survey, Alaska Science Center, slaske@usgs.gov;
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Martin Svenning
(), Norwegian Institute for Nature Research, martin.svenning@nina.no;
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Per-Arne Amundsen
(), UiT The Arctic University of Norway, per-arne.amundsen@uit.no ;
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Kirsten Christoffersen
(), University of Copenhagen, kchristoffersen@bio.ku.dk;
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Jaakko Erkinaro
(), Natural Resources Institute Finland, jaakko.erkinaro@luke.fi;
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Guðni Guðbergsson
(), Marine and Freshwater Research Institute, Reykjavik, Iceland, gudni.gudbergsson@hafogvatn.is ;
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Brian Hayden
(), University of New Brunswick, Canadian Rivers Institute, brian.hayden@unb.ca;
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Jani Heino
(), Finnish Environment Institute, Jani.Heino@ymparisto.fi;
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Kimmo Kahilainen
(), UiT The Arctic University of Norway, kimmo.kahilainen@helsinki.fi;
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Jennifer Lento
(), Canadian Rivers Institute, Department of Biology, University of New Brunswick, jlento@gmail.com;
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Panu Orell
(), Natural Resources Institute Finland, panu.orell@luke.fi;
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Johan Östergren
(), Swedish University of Agricultural Sciences, johan.ostergren@slu.se;
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Michael Power
(), University of Waterloo, m3power@uwaterloo.ca;
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Ruslan Rafikov
(), Institute of Biology, Komi Science Center, Russian Academy of Sciences, rafikov@ib.komisc.ru;
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Atso Romakkaniemi
(), Natural Resources Institute Finland, atso.romakkaniemi@luke.fi;
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Jan-Idar Solbakken
(), Sámi University of Applied Sciences, jan-idar.solbakken@samiskhs.no;
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Heidi Swanson
(), University of Waterloo, Canada, heidi.swanson@uwaterloo.ca;
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Matthew Whitman
(), Bureau of Land Management, USA, mwhitman@blm.gov;
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Christian Zimmerman
(), U.S. Geological Survey, Alaska Science Center, czimmerman@usgs.gov;
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