Spawning fish maintains trophic synchrony across time and space beyond thermal drivers
Abstract Increasing ocean temperature will speed up physiological rates of ectotherms. In fish, this is suggested to cause earlier spawning due to faster oocyte growth rates. Over time, this could cause spawning time to become decoupled from the timing of offspring food resources, a phenomenon refer...
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Online Access: | http://dx.doi.org/10.1002/ecy.4304 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.4304 |
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crwiley:10.1002/ecy.4304 2024-10-20T14:05:46+00:00 Spawning fish maintains trophic synchrony across time and space beyond thermal drivers Opdal, Anders Frugård Wright, Peter J. Blom, Geir Höffle, Hannes Lindemann, Christian Kjesbu, Olav Sigurd H2020 Society Norges Forskningsråd 2024 http://dx.doi.org/10.1002/ecy.4304 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.4304 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology volume 105, issue 6 ISSN 0012-9658 1939-9170 journal-article 2024 crwiley https://doi.org/10.1002/ecy.4304 2024-09-23T04:36:49Z Abstract Increasing ocean temperature will speed up physiological rates of ectotherms. In fish, this is suggested to cause earlier spawning due to faster oocyte growth rates. Over time, this could cause spawning time to become decoupled from the timing of offspring food resources, a phenomenon referred to as trophic asynchrony. We used biological data, including body length, age, and gonad developmental stages collected from >125,000 individual Northeast Arctic cod ( Gadus morhua ) sampled between 59 and 73° N in 1980–2019. Combined with experimental data on oocyte growth rates, our analyses show that cod spawned progressively earlier by about a week per decade, partly due to ocean warming. It also appears that spawning time varied by more than 40 days, depending on year and spawning location. The significant plasticity in spawning time seems to be fine‐tuned to the local phytoplankton spring bloom phenology. This ability to partly overcome thermal drivers and thus modulate spawning time could allow individuals to maximize fitness by closely tracking local environmental conditions important for offspring survival. Our finding highlights a new dimension for trophic match–mismatch and should be an important consideration in models used to predict phenology dynamics in a warmer climate. Article in Journal/Newspaper Arctic cod Arctic Gadus morhua Northeast Arctic cod Phytoplankton Wiley Online Library Arctic Ecology 105 6 |
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Wiley Online Library |
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English |
description |
Abstract Increasing ocean temperature will speed up physiological rates of ectotherms. In fish, this is suggested to cause earlier spawning due to faster oocyte growth rates. Over time, this could cause spawning time to become decoupled from the timing of offspring food resources, a phenomenon referred to as trophic asynchrony. We used biological data, including body length, age, and gonad developmental stages collected from >125,000 individual Northeast Arctic cod ( Gadus morhua ) sampled between 59 and 73° N in 1980–2019. Combined with experimental data on oocyte growth rates, our analyses show that cod spawned progressively earlier by about a week per decade, partly due to ocean warming. It also appears that spawning time varied by more than 40 days, depending on year and spawning location. The significant plasticity in spawning time seems to be fine‐tuned to the local phytoplankton spring bloom phenology. This ability to partly overcome thermal drivers and thus modulate spawning time could allow individuals to maximize fitness by closely tracking local environmental conditions important for offspring survival. Our finding highlights a new dimension for trophic match–mismatch and should be an important consideration in models used to predict phenology dynamics in a warmer climate. |
author2 |
H2020 Society Norges Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Opdal, Anders Frugård Wright, Peter J. Blom, Geir Höffle, Hannes Lindemann, Christian Kjesbu, Olav Sigurd |
spellingShingle |
Opdal, Anders Frugård Wright, Peter J. Blom, Geir Höffle, Hannes Lindemann, Christian Kjesbu, Olav Sigurd Spawning fish maintains trophic synchrony across time and space beyond thermal drivers |
author_facet |
Opdal, Anders Frugård Wright, Peter J. Blom, Geir Höffle, Hannes Lindemann, Christian Kjesbu, Olav Sigurd |
author_sort |
Opdal, Anders Frugård |
title |
Spawning fish maintains trophic synchrony across time and space beyond thermal drivers |
title_short |
Spawning fish maintains trophic synchrony across time and space beyond thermal drivers |
title_full |
Spawning fish maintains trophic synchrony across time and space beyond thermal drivers |
title_fullStr |
Spawning fish maintains trophic synchrony across time and space beyond thermal drivers |
title_full_unstemmed |
Spawning fish maintains trophic synchrony across time and space beyond thermal drivers |
title_sort |
spawning fish maintains trophic synchrony across time and space beyond thermal drivers |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1002/ecy.4304 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.4304 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic cod Arctic Gadus morhua Northeast Arctic cod Phytoplankton |
genre_facet |
Arctic cod Arctic Gadus morhua Northeast Arctic cod Phytoplankton |
op_source |
Ecology volume 105, issue 6 ISSN 0012-9658 1939-9170 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ecy.4304 |
container_title |
Ecology |
container_volume |
105 |
container_issue |
6 |
_version_ |
1813444002852110336 |