Show simple item record

dc.contributor.authorLjungström, Anna Jeja Gabriella
dc.contributor.authorClaireaux, Marion
dc.contributor.authorFiksen, Øyvind
dc.contributor.authorJørgensen, Christian
dc.PublishedMarine Ecology Progress Series. 2020, 636 1-18.
dc.description.abstractOne of the most well-studied biogeographic patterns is increasing body size with latitude, and recent body size declines in marine and terrestrial organisms have received growing attention. Spatial and temporal variation in temperature is the generally invoked driver but food abundance and quality are also emphasized. However, the underlying mechanisms are not clear and the actual cause is likely to differ both within and among species. Here, we focused our attention on drivers of body size in planktivorous fish that forage through vision. This group of organisms plays a central role in marine ecosystems by linking the energy flow from lower to higher trophic levels. Using a model that incorporates explicit mechanisms for vision-based feeding and physiology, we investigated the influence on optimal body size of several biotic (prey size, prey energy content, and prey biomass concentration) and abiotic (temperature, latitude, and water clarity) factors known to affect foraging rates and bioenergetics. We found prey accessibility to be the most influential factor for body size, determined primarily by prey size but also by water clarity, imposing visual constraints on prey encounters and thereby limiting feeding rates. Hence, for planktivores that forage through vision, an altered composition of the prey field could have important implications for body size and for the energy available for reproduction and other fitness-related tasks. Understanding the complicated effects of climate change on zooplankton communities is thus crucial for predicting impacts on planktivorous fish, as well as consequences for energy flows and body sizes in marine systems.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleBody size adaptions under climate change: Zooplankton community more important than temperature or food abundance in model of a zooplanktivorous fishen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderCopyright 2020 The Authorsen_US
dc.source.journalMarine Ecology Progress Seriesen_US
dc.relation.projectNorges forskningsråd: 294819en_US
dc.identifier.citationMarine Ecology Progress Series. 2020, 636: 1–18en_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal