Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus
Carbon dioxide (CO2) levels projected to occur in the oceans by the end of this century cause a range of behavioural effects in fish, but whether other highly active marine organisms, such as cephalopods, are similarly affected is unknown. We tested the effects of projected future CO2 levels (626 an...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.839886 https://doi.org/10.1594/PANGAEA.839886 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.839886 2024-09-15T18:28:08+00:00 Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus Spady, Blake L Watson, Sue-Ann Chase, Tory J Munday, Philip L LATITUDE: -19.416670 * LONGITUDE: 147.366670 * DATE/TIME START: 2013-09-01T00:00:00 * DATE/TIME END: 2013-10-31T00:00:00 2014 text/tab-separated-values, 1044 data points https://doi.pangaea.de/10.1594/PANGAEA.839886 https://doi.org/10.1594/PANGAEA.839886 en eng PANGAEA Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0 [webpage]. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.839886 https://doi.org/10.1594/PANGAEA.839886 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Spady, Blake L; Watson, Sue-Ann; Chase, Tory J; Munday, Philip L (2014): Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus. Biology Open, 3(11), 1063-1070, https://doi.org/10.1242/bio.20149894 Activity description Alkalinity total standard error Animalia Aragonite saturation state Behaviour Bicarbonate ion Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cleveland_Bay Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Description EXP Experiment Figure Frequency Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Idiosepius pygmaeus Laboratory experiment Mollusca Nekton Number OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Potentiometric Potentiometric titration Salinity dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.83988610.1242/bio.20149894 2024-07-24T02:31:33Z Carbon dioxide (CO2) levels projected to occur in the oceans by the end of this century cause a range of behavioural effects in fish, but whether other highly active marine organisms, such as cephalopods, are similarly affected is unknown. We tested the effects of projected future CO2 levels (626 and 956 µatm) on the behaviour of male two-toned pygmy squid, Idiosepius pygmaeus. Exposure to elevated CO2 increased the number of active individuals by 19-25% and increased movement (number of line-crosses) by nearly 3 times compared to squid at present-day CO2. Squid vigilance and defensive behaviours were also altered by elevated CO2 with >80% of individuals choosing jet escape responses over defensive arm postures in response to a visual startle stimulus, compared with 50% choosing jet escape responses at control CO2. In addition, more escape responses were chosen over threat behaviours in body pattern displays at elevated CO2 and individuals were more than twice as likely to use ink as a defence strategy at 956 µatm CO2, compared with controls. Increased activity could lead to adverse effects on energy budgets as well as increasing visibility to predators. A tendency to respond to a stimulus with escape behaviours could increase survival, but may also be energetically costly and could potentially lead to more chases by predators compared with individuals that use defensive postures. These results demonstrate that projected future ocean acidification affects the behaviours of a tropical squid species. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(147.366670,147.366670,-19.416670,-19.416670) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Activity description Alkalinity total standard error Animalia Aragonite saturation state Behaviour Bicarbonate ion Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cleveland_Bay Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Description EXP Experiment Figure Frequency Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Idiosepius pygmaeus Laboratory experiment Mollusca Nekton Number OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Potentiometric Potentiometric titration Salinity |
spellingShingle |
Activity description Alkalinity total standard error Animalia Aragonite saturation state Behaviour Bicarbonate ion Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cleveland_Bay Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Description EXP Experiment Figure Frequency Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Idiosepius pygmaeus Laboratory experiment Mollusca Nekton Number OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Potentiometric Potentiometric titration Salinity Spady, Blake L Watson, Sue-Ann Chase, Tory J Munday, Philip L Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus |
topic_facet |
Activity description Alkalinity total standard error Animalia Aragonite saturation state Behaviour Bicarbonate ion Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cleveland_Bay Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Description EXP Experiment Figure Frequency Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Idiosepius pygmaeus Laboratory experiment Mollusca Nekton Number OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Potentiometric Potentiometric titration Salinity |
description |
Carbon dioxide (CO2) levels projected to occur in the oceans by the end of this century cause a range of behavioural effects in fish, but whether other highly active marine organisms, such as cephalopods, are similarly affected is unknown. We tested the effects of projected future CO2 levels (626 and 956 µatm) on the behaviour of male two-toned pygmy squid, Idiosepius pygmaeus. Exposure to elevated CO2 increased the number of active individuals by 19-25% and increased movement (number of line-crosses) by nearly 3 times compared to squid at present-day CO2. Squid vigilance and defensive behaviours were also altered by elevated CO2 with >80% of individuals choosing jet escape responses over defensive arm postures in response to a visual startle stimulus, compared with 50% choosing jet escape responses at control CO2. In addition, more escape responses were chosen over threat behaviours in body pattern displays at elevated CO2 and individuals were more than twice as likely to use ink as a defence strategy at 956 µatm CO2, compared with controls. Increased activity could lead to adverse effects on energy budgets as well as increasing visibility to predators. A tendency to respond to a stimulus with escape behaviours could increase survival, but may also be energetically costly and could potentially lead to more chases by predators compared with individuals that use defensive postures. These results demonstrate that projected future ocean acidification affects the behaviours of a tropical squid species. |
format |
Dataset |
author |
Spady, Blake L Watson, Sue-Ann Chase, Tory J Munday, Philip L |
author_facet |
Spady, Blake L Watson, Sue-Ann Chase, Tory J Munday, Philip L |
author_sort |
Spady, Blake L |
title |
Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus |
title_short |
Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus |
title_full |
Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus |
title_fullStr |
Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus |
title_full_unstemmed |
Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus |
title_sort |
projected near-future co2 levels increase activity and alter defensive behaviours in the tropical squid idiosepius pygmaeus |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.839886 https://doi.org/10.1594/PANGAEA.839886 |
op_coverage |
LATITUDE: -19.416670 * LONGITUDE: 147.366670 * DATE/TIME START: 2013-09-01T00:00:00 * DATE/TIME END: 2013-10-31T00:00:00 |
long_lat |
ENVELOPE(147.366670,147.366670,-19.416670,-19.416670) |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Spady, Blake L; Watson, Sue-Ann; Chase, Tory J; Munday, Philip L (2014): Projected near-future CO2 levels increase activity and alter defensive behaviours in the tropical squid Idiosepius pygmaeus. Biology Open, 3(11), 1063-1070, https://doi.org/10.1242/bio.20149894 |
op_relation |
Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0 [webpage]. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.839886 https://doi.org/10.1594/PANGAEA.839886 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.83988610.1242/bio.20149894 |
_version_ |
1810469460014792704 |