Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America
The Notothenioidei are a typical example of stenothermal fishes since most species have evolved and lived in Antarctic waters, where the water temperature is low and stable. This fact enabled them to evolve physiological characteristics related to cold. Nevertheless, some species came out of Antarct...
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ftconicet:oai:ri.conicet.gov.ar:11336/149209 2023-10-09T21:46:23+02:00 Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America Giménez, Eloísa Mariana Barrantes, María Eugenia Fernandez, Daniel Alfredo Lattuca, María Eugenia application/pdf http://hdl.handle.net/11336/149209 eng eng Springer info:eu-repo/semantics/altIdentifier/doi/10.1007/S00300-021-02852-1 info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-021-02852-1 http://hdl.handle.net/11336/149209 Giménez, Eloísa Mariana; Barrantes, María Eugenia; Fernandez, Daniel Alfredo; Lattuca, María Eugenia; Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America; Springer; Polar Biology; 44; 6; 4-2021; 1055-1067 0722-4060 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ACUTE THERMAL PREFERENDA CLIMATE CHANGE HARPAGIFERIDAE NOTOTHENIIDAE PATAGONIA THERMAL TOLERANCE POLYGONS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/S00300-021-02852-1 2023-09-24T20:07:48Z The Notothenioidei are a typical example of stenothermal fishes since most species have evolved and lived in Antarctic waters, where the water temperature is low and stable. This fact enabled them to evolve physiological characteristics related to cold. Nevertheless, some species came out of Antarctic waters a few million years ago and coped with more variable thermal regimes. This work aims to determine the thermal tolerance and preference of two sub-Antarctic notothenioid species found in Southern South America, Patagonotothen tessellata and Harpagifer bispinis, adding valuable information about thermal adaptation mechanisms. Experiments were conducted after exposing their juveniles for three weeks at 4, 7, 10 and 12 °C. Their thermal tolerance limits were established using the Critical Thermal Methodology and their acute thermal preferenda, employing a horizontal thermal gradient tank. Fishes acclimated to different exposure temperatures had small to intermediate thermal tolerance polygons (P. tessellata: 593.85°C2, H. bispinis: 475.40 °C2) and positive relationships between preferred and acclimation temperatures. The Final Temperature Preferenda were estimated to be 14.25 °C for P. tessellata and 13.05 °C for H. bispinis, allowing to characterize them as cold eurythermal species, with P. tessellata more tolerant to heat and H. bispinis more tolerant to cold. Their different thermal sensitivities are in agreement with their different thermal histories and distributions. In a climate change context, the increase of sea surface temperatures is likely to reduce the northern boundaries of their distributions. Conversely, it can potentially enhance both species’ performances at their southernmost distribution limits since those environments are cooler than their maximum thermal tolerances. Fil: Giménez, Eloísa Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Barrantes, María Eugenia. Consejo Nacional de Investigaciones ... Article in Journal/Newspaper Antarc* Antarctic Polar Biology CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Austral Patagonia Argentina Polar Biology 44 6 1055 1067 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ACUTE THERMAL PREFERENDA CLIMATE CHANGE HARPAGIFERIDAE NOTOTHENIIDAE PATAGONIA THERMAL TOLERANCE POLYGONS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ACUTE THERMAL PREFERENDA CLIMATE CHANGE HARPAGIFERIDAE NOTOTHENIIDAE PATAGONIA THERMAL TOLERANCE POLYGONS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Giménez, Eloísa Mariana Barrantes, María Eugenia Fernandez, Daniel Alfredo Lattuca, María Eugenia Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America |
topic_facet |
ACUTE THERMAL PREFERENDA CLIMATE CHANGE HARPAGIFERIDAE NOTOTHENIIDAE PATAGONIA THERMAL TOLERANCE POLYGONS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
The Notothenioidei are a typical example of stenothermal fishes since most species have evolved and lived in Antarctic waters, where the water temperature is low and stable. This fact enabled them to evolve physiological characteristics related to cold. Nevertheless, some species came out of Antarctic waters a few million years ago and coped with more variable thermal regimes. This work aims to determine the thermal tolerance and preference of two sub-Antarctic notothenioid species found in Southern South America, Patagonotothen tessellata and Harpagifer bispinis, adding valuable information about thermal adaptation mechanisms. Experiments were conducted after exposing their juveniles for three weeks at 4, 7, 10 and 12 °C. Their thermal tolerance limits were established using the Critical Thermal Methodology and their acute thermal preferenda, employing a horizontal thermal gradient tank. Fishes acclimated to different exposure temperatures had small to intermediate thermal tolerance polygons (P. tessellata: 593.85°C2, H. bispinis: 475.40 °C2) and positive relationships between preferred and acclimation temperatures. The Final Temperature Preferenda were estimated to be 14.25 °C for P. tessellata and 13.05 °C for H. bispinis, allowing to characterize them as cold eurythermal species, with P. tessellata more tolerant to heat and H. bispinis more tolerant to cold. Their different thermal sensitivities are in agreement with their different thermal histories and distributions. In a climate change context, the increase of sea surface temperatures is likely to reduce the northern boundaries of their distributions. Conversely, it can potentially enhance both species’ performances at their southernmost distribution limits since those environments are cooler than their maximum thermal tolerances. Fil: Giménez, Eloísa Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Barrantes, María Eugenia. Consejo Nacional de Investigaciones ... |
format |
Article in Journal/Newspaper |
author |
Giménez, Eloísa Mariana Barrantes, María Eugenia Fernandez, Daniel Alfredo Lattuca, María Eugenia |
author_facet |
Giménez, Eloísa Mariana Barrantes, María Eugenia Fernandez, Daniel Alfredo Lattuca, María Eugenia |
author_sort |
Giménez, Eloísa Mariana |
title |
Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America |
title_short |
Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America |
title_full |
Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America |
title_fullStr |
Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America |
title_full_unstemmed |
Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America |
title_sort |
thermal responses of two sub-antarctic notothenioid fishes, the black southern cod patagonotothen tessellata (richardson, 1845) and the magellan plunderfish harpagifer bispinis (forster, 1801), from southern south america |
publisher |
Springer |
url |
http://hdl.handle.net/11336/149209 |
geographic |
Antarctic Austral Patagonia Argentina |
geographic_facet |
Antarctic Austral Patagonia Argentina |
genre |
Antarc* Antarctic Polar Biology |
genre_facet |
Antarc* Antarctic Polar Biology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/S00300-021-02852-1 info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-021-02852-1 http://hdl.handle.net/11336/149209 Giménez, Eloísa Mariana; Barrantes, María Eugenia; Fernandez, Daniel Alfredo; Lattuca, María Eugenia; Thermal responses of two sub-Antarctic notothenioid fishes, the black southern cod Patagonotothen tessellata (Richardson, 1845) and the Magellan plunderfish Harpagifer bispinis (Forster, 1801), from southern South America; Springer; Polar Biology; 44; 6; 4-2021; 1055-1067 0722-4060 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/S00300-021-02852-1 |
container_title |
Polar Biology |
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44 |
container_issue |
6 |
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1055 |
op_container_end_page |
1067 |
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1779322079899811840 |