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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.16942
|2 doi
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|a pubmed25n1207.xml
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|a (NLM)37751177
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| 041 |
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|a eng
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| 100 |
1 |
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|a Clerc, Corentin
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Filter-feeding gelatinous macrozooplankton response to climate change and implications for benthic food supply and global carbon cycle
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|c 2023
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 17.10.2023
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2023 The Authors. Global Change Biology published by John Wiley & Sons Ltd.
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|a It is often suggested that gelatinous zooplankton may benefit from anthropogenic pressures of all kinds and in particular from climate change. Large pelagic tunicates, for example, are likely to be favored over other types of macrozooplankton due to their filter-feeding mode, which gives them access to small preys thought to be less affected by climate change than larger preys. In this study, we provide model-based estimate of potential community changes in macrozooplankton composition and estimate for the first time their effects on benthic food supply and on the ocean carbon cycle under two 21st-century climate-change scenarios. Forced with output from an Earth System Model climate projections, our ocean biogeochemical model simulates a large reduction in macrozooplankton biomass in response to anthropogenic climate change, but shows that gelatinous macrozooplankton are less affected than nongelatinous macrozooplankton, with global biomass declines estimated at -2.8% and -3.5%, respectively, for every 1°C of warming. The inclusion of gelatinous macrozooplankon in our ocean biogeochemical model has a limited effect on anthropogenic carbon uptake in the 21st century, but impacts the projected decline in particulate organic matter fluxes in the deep ocean. In subtropical oligotrophic gyres, where gelatinous zooplankton dominate macrozooplankton, the decline in the amount of organic matter reaching the seafloor is reduced by a factor of 2 when gelatinous macrozooplankton are considered (-17.5% vs. -29.7% when gelatinous macrozooplankton are not considered, all for 2100 under RCP8.5). The shift to gelatinous macrozooplankton in the future ocean therefore buffers the decline in deep carbon fluxes and should be taken into account when assessing potential changes in deep carbon storage and the risks that deep ecosystems may face when confronted with a decline in their food source
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| 650 |
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|a Journal Article
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| 650 |
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4 |
|a benthos
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| 650 |
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4 |
|a carbon cycle
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a gelatinous zooplankton
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| 650 |
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4 |
|a macrozooplankton
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| 650 |
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4 |
|a particulate carbon
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| 650 |
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4 |
|a pelagic tunicates
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| 700 |
1 |
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|a Aumont, Olivier
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bopp, Laurent
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 29(2023), 22 vom: 15. Nov., Seite 6383-6398
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnas
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| 773 |
1 |
8 |
|g volume:29
|g year:2023
|g number:22
|g day:15
|g month:11
|g pages:6383-6398
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.16942
|3 Volltext
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