Larval fish body growth responses to simultaneous browning and warming

Abstract Organisms are facing global climate change and other anthropogenic pressures, but most research on responses to such changes only considers effects of single drivers. Observational studies and physiological experiments suggest temperature increases will lead to faster growth of small fish....

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Autores principales:	Magnus Huss, Renee M. van Dorst, Anna Gårdmark
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Baltic Sea climate change perch temperature water color zooplankton Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/3110b958dae640b499ba547d3462f602
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spelling	oai:doaj.org-article:3110b958dae640b499ba547d3462f6022021-11-08T17:10:41ZLarval fish body growth responses to simultaneous browning and warming2045-775810.1002/ece3.8194https://doaj.org/article/3110b958dae640b499ba547d3462f6022021-11-01T00:00:00Zhttps://doi.org/10.1002/ece3.8194https://doaj.org/toc/2045-7758Abstract Organisms are facing global climate change and other anthropogenic pressures, but most research on responses to such changes only considers effects of single drivers. Observational studies and physiological experiments suggest temperature increases will lead to faster growth of small fish. Whether this effect of warming holds in more natural food web settings with concurrent changes in other drivers, such as darkening water color (“browning”) is, however, unknown. Here, we set up a pelagic mesocosm experiment with large bags in the Baltic Sea archipelago, inoculated with larval Eurasian perch (Perca fluviatilis) and zooplankton prey and varying in temperature and color, to answer the question how simultaneous warming and browning of coastal food webs impact body growth and survival of larval perch. We found that browning decreased body growth and survival of larval perch, whereas warming increased body growth but had no effect on survival. Based on daily fish body growth estimates based on otolith microstructure analysis, and size composition and abundance of available prey, we explain how these results may come about through a combination of physiological responses to warming and lower foraging efficiency in brown waters. We conclude that larval fish responses to climate change thus may depend on the relative rate and extent of both warming and browning, as they may even cancel each other out.Magnus HussRenee M. van DorstAnna GårdmarkWileyarticleBaltic Seaclimate changeperchtemperaturewater colorzooplanktonEcologyQH540-549.5ENEcology and Evolution, Vol 11, Iss 21, Pp 15132-15140 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Baltic Sea climate change perch temperature water color zooplankton Ecology QH540-549.5
spellingShingle	Baltic Sea climate change perch temperature water color zooplankton Ecology QH540-549.5 Magnus Huss Renee M. van Dorst Anna Gårdmark Larval fish body growth responses to simultaneous browning and warming
description	Abstract Organisms are facing global climate change and other anthropogenic pressures, but most research on responses to such changes only considers effects of single drivers. Observational studies and physiological experiments suggest temperature increases will lead to faster growth of small fish. Whether this effect of warming holds in more natural food web settings with concurrent changes in other drivers, such as darkening water color (“browning”) is, however, unknown. Here, we set up a pelagic mesocosm experiment with large bags in the Baltic Sea archipelago, inoculated with larval Eurasian perch (Perca fluviatilis) and zooplankton prey and varying in temperature and color, to answer the question how simultaneous warming and browning of coastal food webs impact body growth and survival of larval perch. We found that browning decreased body growth and survival of larval perch, whereas warming increased body growth but had no effect on survival. Based on daily fish body growth estimates based on otolith microstructure analysis, and size composition and abundance of available prey, we explain how these results may come about through a combination of physiological responses to warming and lower foraging efficiency in brown waters. We conclude that larval fish responses to climate change thus may depend on the relative rate and extent of both warming and browning, as they may even cancel each other out.
format	article
author	Magnus Huss Renee M. van Dorst Anna Gårdmark
author_facet	Magnus Huss Renee M. van Dorst Anna Gårdmark
author_sort	Magnus Huss
title	Larval fish body growth responses to simultaneous browning and warming
title_short	Larval fish body growth responses to simultaneous browning and warming
title_full	Larval fish body growth responses to simultaneous browning and warming
title_fullStr	Larval fish body growth responses to simultaneous browning and warming
title_full_unstemmed	Larval fish body growth responses to simultaneous browning and warming
title_sort	larval fish body growth responses to simultaneous browning and warming
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/3110b958dae640b499ba547d3462f602
work_keys_str_mv	AT magnushuss larvalfishbodygrowthresponsestosimultaneousbrowningandwarming AT reneemvandorst larvalfishbodygrowthresponsestosimultaneousbrowningandwarming AT annagardmark larvalfishbodygrowthresponsestosimultaneousbrowningandwarming
_version_	1718441458748358656

Larval fish body growth responses to simultaneous browning and warming

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