Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus.
Atlantic herring (Clupea harengus) is a benthic spawner, therefore its eggs are prone to encounter different water conditions during embryonic development, with bottom waters often depleted of oxygen and enriched in CO2. Some Atlantic herring spawning grounds are predicted to be highly affected by o...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.884125 2023-05-15T17:49:57+02:00 Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. Leo, Elettra Dahlke, Flemming Storch, Daniela Pörtner, Hans-Otto Mark, Felix Christopher 2018-01-22 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.884125 https://doi.org/10.1594/PANGAEA.884125 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.884125 https://doi.org/10.1594/PANGAEA.884125 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven Supplement to: Leo, Elettra; Dahlke, Flemming; Storch, Daniela; Pörtner, Hans-Otto; Mark, Felix Christopher (2018): Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. Conservation Physiology, 6(1), https://doi.org/10.1093/conphys/coy050 BIOACID Biological Impacts of Ocean Acidification Dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.884125 https://doi.org/10.1093/conphys/coy050 2023-01-20T07:34:05Z Atlantic herring (Clupea harengus) is a benthic spawner, therefore its eggs are prone to encounter different water conditions during embryonic development, with bottom waters often depleted of oxygen and enriched in CO2. Some Atlantic herring spawning grounds are predicted to be highly affected by ongoing Ocean Acidification and Warming with water temperature increasing by up to +3°C and CO2 levels reaching ca. 1000 μatm (RCP 8.5). Although many studies investigated the effects of high levels of CO2 on the embryonic development of Atlantic herring, little is known about the combination of temperature and ecologically relevant levels of CO2. In this study, we investigated the effects of Ocean Acidification and Warming on embryonic metabolic and developmental performance such as mitochondrial function, respiration, hatching success (HS) and growth in Atlantic herring from the Oslo Fjord, one of the spawning grounds predicted to be greatly affected by climate change. Fertilized eggs were incubated under combinations of two PCO2 conditions (400 μatm and 1100 μatm) and three temperatures (6, 10 and 14°C), which correspond to current and end-of-the-century conditions. We analysed HS, oxygen consumption (MO2) and mitochondrial function of embryos as well as larval length at hatch. The capacity of the electron transport system (ETS) increased with temperature, reaching a plateau at 14°C, where the contribution of Complex I to the ETS declined in favour of Complex II. This relative shift was coupled with a dramatic increase in MO2 at 14°C. HS was high under ambient spawning conditions (6–10°C), but decreased at 14°C and hatched larvae at this temperature were smaller. Elevated PCO2 increased larval malformations, indicating sub-lethal effects. These results indicate that energetic limitations due to thermally affected mitochondria and higher energy demand for maintenance occur at the expense of embryonic development and growth. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
BIOACID Biological Impacts of Ocean Acidification |
spellingShingle |
BIOACID Biological Impacts of Ocean Acidification Leo, Elettra Dahlke, Flemming Storch, Daniela Pörtner, Hans-Otto Mark, Felix Christopher Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. |
topic_facet |
BIOACID Biological Impacts of Ocean Acidification |
description |
Atlantic herring (Clupea harengus) is a benthic spawner, therefore its eggs are prone to encounter different water conditions during embryonic development, with bottom waters often depleted of oxygen and enriched in CO2. Some Atlantic herring spawning grounds are predicted to be highly affected by ongoing Ocean Acidification and Warming with water temperature increasing by up to +3°C and CO2 levels reaching ca. 1000 μatm (RCP 8.5). Although many studies investigated the effects of high levels of CO2 on the embryonic development of Atlantic herring, little is known about the combination of temperature and ecologically relevant levels of CO2. In this study, we investigated the effects of Ocean Acidification and Warming on embryonic metabolic and developmental performance such as mitochondrial function, respiration, hatching success (HS) and growth in Atlantic herring from the Oslo Fjord, one of the spawning grounds predicted to be greatly affected by climate change. Fertilized eggs were incubated under combinations of two PCO2 conditions (400 μatm and 1100 μatm) and three temperatures (6, 10 and 14°C), which correspond to current and end-of-the-century conditions. We analysed HS, oxygen consumption (MO2) and mitochondrial function of embryos as well as larval length at hatch. The capacity of the electron transport system (ETS) increased with temperature, reaching a plateau at 14°C, where the contribution of Complex I to the ETS declined in favour of Complex II. This relative shift was coupled with a dramatic increase in MO2 at 14°C. HS was high under ambient spawning conditions (6–10°C), but decreased at 14°C and hatched larvae at this temperature were smaller. Elevated PCO2 increased larval malformations, indicating sub-lethal effects. These results indicate that energetic limitations due to thermally affected mitochondria and higher energy demand for maintenance occur at the expense of embryonic development and growth. |
format |
Dataset |
author |
Leo, Elettra Dahlke, Flemming Storch, Daniela Pörtner, Hans-Otto Mark, Felix Christopher |
author_facet |
Leo, Elettra Dahlke, Flemming Storch, Daniela Pörtner, Hans-Otto Mark, Felix Christopher |
author_sort |
Leo, Elettra |
title |
Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. |
title_short |
Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. |
title_full |
Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. |
title_fullStr |
Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. |
title_full_unstemmed |
Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. |
title_sort |
impact of ocean acidification and warming on the bioenergetics of developing eggs of atlantic herring clupea harengus. |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.884125 https://doi.org/10.1594/PANGAEA.884125 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven Supplement to: Leo, Elettra; Dahlke, Flemming; Storch, Daniela; Pörtner, Hans-Otto; Mark, Felix Christopher (2018): Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. Conservation Physiology, 6(1), https://doi.org/10.1093/conphys/coy050 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.884125 https://doi.org/10.1594/PANGAEA.884125 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.884125 https://doi.org/10.1093/conphys/coy050 |
_version_ |
1766156488070397952 |