Broodstock exposure to warming and elevated pCO2 impairs gamete quality and narrows the temperature window of fertilisation in Atlantic cod
Impacts of global warming and CO2-related ocean acidification (OA) on fish reproduction may include chronic effects on gametogenesis and gamete quality, as well as acute effects on external fertilisation. Here, temperature thresholds and OA-sensitivity of gametogenesis and fertilisation were investi...
Published in: | Journal of Fish Biology |
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2022
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ftopenagrar:oai:www.openagrar.de:openagrar_mods_00085539 2023-05-15T15:27:07+02:00 Broodstock exposure to warming and elevated pCO2 impairs gamete quality and narrows the temperature window of fertilisation in Atlantic cod Dahlke, Flemming T. Puvanendran, Velmurugu Mortensen, Atle Pörtner, Hans-Otto Storch, Daniela 2022 https://doi.org/10.1111/jfb.15140 https://www.openagrar.de/receive/openagrar_mods_00085539 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00051582/dn065813.pdf eng eng Journal of fish biology -- J Fish Biol -- 1095-8649 -- 1471958-7 https://doi.org/10.1111/jfb.15140 https://www.openagrar.de/receive/openagrar_mods_00085539 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00051582/dn065813.pdf public https://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess CC-BY-NC Text ddc:590 ddc:363.7 climate change -- fertility -- fish reproduction -- gamete quality -- gametogenesis -- ocean acidification article Text 2022 ftopenagrar https://doi.org/10.1111/jfb.15140 2023-03-06T00:08:06Z Impacts of global warming and CO2-related ocean acidification (OA) on fish reproduction may include chronic effects on gametogenesis and gamete quality, as well as acute effects on external fertilisation. Here, temperature thresholds and OA-sensitivity of gametogenesis and fertilisation were investigated in Atlantic cod, Gadus morhua. Three broodstock groups of farmed cod (FC 1–3) were exposed for 3?months to three maturation conditions (FC 1: control, 6°C/400 µatm CO2; FC 2: warming, 9.5°C/400 µatm; FC 3: warming and OA, 9.5°C/1100 µatm). In addition, a broodstock group of wild cod (WC) was kept at control conditions to compare the acute temperature window of fertilisation with that of farmed cod (FC 1). Fertilisations were conducted in a temperature-gradient table at 10 temperatures (between -1.5 and 12°C) and two CO2 levels (400/1100 µatm). In FC 1 and WC, fertilisation success was relatively high between 0.5°C and 11°C (TRange of c. 10.5°C), indicating similar gamete quality in farmed and wild broodstocks kept at control conditions. Exposure of farmed broodstocks to warming (FC 2) and the combination of warming and OA (FC 3) impaired gamete quality, causing a reduction in fertilisation success of -20% (FC 2) and?-?42% (FC 3) compared to FC 1. The acute temperature window of fertilisation narrowed from FC 1 (TRange = 10.4°C) to FC 2 (TRange = 8.8°C) and FC 3 (TRange = 5.9°C). Acute effects of CO2 on fertilisation success were not significant. This study demonstrates potential climate change impacts on gametogenesis and fertilisation in Atlantic cod, suggesting the loss of spawning habitat in the coming decades. Article in Journal/Newspaper atlantic cod Gadus morhua Ocean acidification OpenAgrar (OA) Narrows The ENVELOPE(-67.167,-67.167,-67.617,-67.617) Journal of Fish Biology 101 4 822 833 |
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Open Polar |
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OpenAgrar (OA) |
op_collection_id |
ftopenagrar |
language |
English |
topic |
Text ddc:590 ddc:363.7 climate change -- fertility -- fish reproduction -- gamete quality -- gametogenesis -- ocean acidification |
spellingShingle |
Text ddc:590 ddc:363.7 climate change -- fertility -- fish reproduction -- gamete quality -- gametogenesis -- ocean acidification Dahlke, Flemming T. Puvanendran, Velmurugu Mortensen, Atle Pörtner, Hans-Otto Storch, Daniela Broodstock exposure to warming and elevated pCO2 impairs gamete quality and narrows the temperature window of fertilisation in Atlantic cod |
topic_facet |
Text ddc:590 ddc:363.7 climate change -- fertility -- fish reproduction -- gamete quality -- gametogenesis -- ocean acidification |
description |
Impacts of global warming and CO2-related ocean acidification (OA) on fish reproduction may include chronic effects on gametogenesis and gamete quality, as well as acute effects on external fertilisation. Here, temperature thresholds and OA-sensitivity of gametogenesis and fertilisation were investigated in Atlantic cod, Gadus morhua. Three broodstock groups of farmed cod (FC 1–3) were exposed for 3?months to three maturation conditions (FC 1: control, 6°C/400 µatm CO2; FC 2: warming, 9.5°C/400 µatm; FC 3: warming and OA, 9.5°C/1100 µatm). In addition, a broodstock group of wild cod (WC) was kept at control conditions to compare the acute temperature window of fertilisation with that of farmed cod (FC 1). Fertilisations were conducted in a temperature-gradient table at 10 temperatures (between -1.5 and 12°C) and two CO2 levels (400/1100 µatm). In FC 1 and WC, fertilisation success was relatively high between 0.5°C and 11°C (TRange of c. 10.5°C), indicating similar gamete quality in farmed and wild broodstocks kept at control conditions. Exposure of farmed broodstocks to warming (FC 2) and the combination of warming and OA (FC 3) impaired gamete quality, causing a reduction in fertilisation success of -20% (FC 2) and?-?42% (FC 3) compared to FC 1. The acute temperature window of fertilisation narrowed from FC 1 (TRange = 10.4°C) to FC 2 (TRange = 8.8°C) and FC 3 (TRange = 5.9°C). Acute effects of CO2 on fertilisation success were not significant. This study demonstrates potential climate change impacts on gametogenesis and fertilisation in Atlantic cod, suggesting the loss of spawning habitat in the coming decades. |
format |
Article in Journal/Newspaper |
author |
Dahlke, Flemming T. Puvanendran, Velmurugu Mortensen, Atle Pörtner, Hans-Otto Storch, Daniela |
author_facet |
Dahlke, Flemming T. Puvanendran, Velmurugu Mortensen, Atle Pörtner, Hans-Otto Storch, Daniela |
author_sort |
Dahlke, Flemming T. |
title |
Broodstock exposure to warming and elevated pCO2 impairs gamete quality and narrows the temperature window of fertilisation in Atlantic cod |
title_short |
Broodstock exposure to warming and elevated pCO2 impairs gamete quality and narrows the temperature window of fertilisation in Atlantic cod |
title_full |
Broodstock exposure to warming and elevated pCO2 impairs gamete quality and narrows the temperature window of fertilisation in Atlantic cod |
title_fullStr |
Broodstock exposure to warming and elevated pCO2 impairs gamete quality and narrows the temperature window of fertilisation in Atlantic cod |
title_full_unstemmed |
Broodstock exposure to warming and elevated pCO2 impairs gamete quality and narrows the temperature window of fertilisation in Atlantic cod |
title_sort |
broodstock exposure to warming and elevated pco2 impairs gamete quality and narrows the temperature window of fertilisation in atlantic cod |
publishDate |
2022 |
url |
https://doi.org/10.1111/jfb.15140 https://www.openagrar.de/receive/openagrar_mods_00085539 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00051582/dn065813.pdf |
long_lat |
ENVELOPE(-67.167,-67.167,-67.617,-67.617) |
geographic |
Narrows The |
geographic_facet |
Narrows The |
genre |
atlantic cod Gadus morhua Ocean acidification |
genre_facet |
atlantic cod Gadus morhua Ocean acidification |
op_relation |
Journal of fish biology -- J Fish Biol -- 1095-8649 -- 1471958-7 https://doi.org/10.1111/jfb.15140 https://www.openagrar.de/receive/openagrar_mods_00085539 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00051582/dn065813.pdf |
op_rights |
public https://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1111/jfb.15140 |
container_title |
Journal of Fish Biology |
container_volume |
101 |
container_issue |
4 |
container_start_page |
822 |
op_container_end_page |
833 |
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1766357585448927232 |