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Environmental drive...
Environmental drivers of food webs in charr and trout-dominated cold-water lakes
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- Kangosjärvi, Henna (author)
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
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- Amundsen, Per-Arne (author)
- Department of Arctic and Marine Biology, UiT the Arctic University of Norway, Tromsø, Norway
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- Byström, Pär (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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- Finstad, Anders G. (author)
- Department of Natural History, University Museum, Norwegian University of Science and Technology, Trondheim, Norway
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- Power, Michael (author)
- Department of Biology, University of Waterloo, ON, Waterloo, Canada
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- Sánchez-Hernández, Javier (author)
- Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Spain; Instituto de Investigación en Cambio Global, Universidad Rey Juan Carlos, Móstoles, Spain
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- Eloranta, Antti P. (author)
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
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(creator_code:org_t)
- John Wiley & Sons, 2024
- 2024
- English.
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In: Fish and Fisheries. - : John Wiley & Sons. - 1467-2960 .- 1467-2979. ; 25:5, s. 858-875
- Related links:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Cold-water lakes situated in high latitudes and altitudes have pivotal socio-ecological importance both globally and locally. However, they are increasingly threatened by multiple anthropogenic stressors, such as climate change, hydropower and invasive species. The development of efficient management strategies is therefore urgently needed and requires a comprehensive understanding of the factors influencing the biodiversity and ecological processes of these ecosystems. We provide a holistic knowledge base for informed future research and management by addressing the interplay between local and global environmental drivers of food webs in Arctic charr (Salvelinus alpinus, Salmonidae) and brown trout (Salmo trutta, Salmonidae) dominated cold-water lakes in Fennoscandia. The trophic niche and population dynamics of these generalist top consumers provide extensive insights into the effects of natural and anthropogenic drivers on food webs in intensively studied Fennoscandian cold-water lakes, covering marked biogeographical gradients in abiotic and biotic conditions. Drawing on a synthesis of existing literature, our focus is on three pivotal drivers: (1) lake location and connectivity, (2) lake area and morphometry and (3) fish community composition. These drivers significantly influence the complexity and the origin and flow of energy in lake food webs, and ultimately the size structure of the charr and trout populations. Furthermore, we highlight ongoing environmental changes in Fennoscandian cold-water lakes caused by hydropower and invasive species. Finally, we identify crucial knowledge gaps and propose management actions for improving the future state of Fennoscandian cold-water lake ecosystems and their charr and trout populations.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Fisk- och akvakulturforskning (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Fish and Aquacultural Science (hsv//eng)
Keyword
- Arctic
- food-chain length
- population size-structure
- subarctic
- trophic ecology
- trophic niche
Publication and Content Type
- ref (subject category)
- art (subject category)
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