Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801)
In the context of climate change, warming of the seas and expansion of hypoxic zones are challenges that most species of fish are, or will be subjected to. Understanding how different species cope with these changes in their environment at the individual level can shed light on how populations and e...
Published in: | Animals |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
|
Subjects: | |
Online Access: | http://hdl.handle.net/11336/233498 |
id |
ftconicet:oai:ri.conicet.gov.ar:11336/233498 |
---|---|
record_format |
openpolar |
spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/233498 2024-05-19T07:45:51+00:00 Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801) Molina, Juan Manuel Kunzmann, Andreas Pena Reis, João Guerreiro, Pedro Miguel application/pdf http://hdl.handle.net/11336/233498 eng eng Multidisciplinary Digital Publishing Institute info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-2615/13/4/632 info:eu-repo/semantics/altIdentifier/doi/10.3390/ani13040632 http://hdl.handle.net/11336/233498 Molina, Juan Manuel; Kunzmann, Andreas; Pena Reis, João; Guerreiro, Pedro Miguel; Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801); Multidisciplinary Digital Publishing Institute; Animals; 13; 4; 11-2-2023; 1 - 21 2076-2615 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ Fish Physiology Climate Change Hypoxia Tolerance Temperature Tolerance Metabolic Rate Eerobic Scope 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/10.3390/ani13040632 2024-04-25T23:38:07Z In the context of climate change, warming of the seas and expansion of hypoxic zones are challenges that most species of fish are, or will be subjected to. Understanding how different species cope with these changes in their environment at the individual level can shed light on how populations and ecosystems will be affected. We provide first-time estimates on the metabolic rates, thermal, and oxygen-related limits for Halobatrachus didactylus, a coastal sedentary fish that lives in intertidal environments of the Northeast Atlantic. Using respirometry in different experimental designs, we found that this species is highly resistant to acute thermal stress (CTmax: 34.82 ± 0.66 ◦C) and acute hypoxia (Pcrit: 0.59–1.97 mg O2 L−1). We found size-specific differences in this stress response, with smaller individuals being more sensitive. We also quantified its aerobic scope and daily activity patterns, finding this fish to be extremely sedentary, with one of the lowest standard metabolic rates found in temperate fish (SMR: 14.96 mg O2 kg−1h−1). H. didactylus activity increases at night, when its metabolic rate increases drastically (RMR: 36.01 mg O2 kg−1h−1). The maximum metabolic rate of H. didactylus was estimated to be 67.31 mg O2 kg−1h−1, producing an aerobic scope of 52.35 mg O2 kg−1h−1 (77.8% increase). The metrics obtained in this study prove that H. didactylus is remarkably resilient to acute environmental variations in temperature and oxygen content, which might enable it to adapt to the extreme abiotic conditions forecasted for the world’s oceans in the near future. Fil: Molina, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina Fil: Kunzmann, Andreas. Leibniz-Zentrum für Marine Tropenforschung; Alemania Fil: Pena Reis, João. Universidad de Algarve; Portugal Fil: Guerreiro, Pedro Miguel. Universidad de Algarve; ... Article in Journal/Newspaper Northeast Atlantic CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Animals 13 4 632 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Fish Physiology Climate Change Hypoxia Tolerance Temperature Tolerance Metabolic Rate Eerobic Scope https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
Fish Physiology Climate Change Hypoxia Tolerance Temperature Tolerance Metabolic Rate Eerobic Scope https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Molina, Juan Manuel Kunzmann, Andreas Pena Reis, João Guerreiro, Pedro Miguel Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801) |
topic_facet |
Fish Physiology Climate Change Hypoxia Tolerance Temperature Tolerance Metabolic Rate Eerobic Scope https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
In the context of climate change, warming of the seas and expansion of hypoxic zones are challenges that most species of fish are, or will be subjected to. Understanding how different species cope with these changes in their environment at the individual level can shed light on how populations and ecosystems will be affected. We provide first-time estimates on the metabolic rates, thermal, and oxygen-related limits for Halobatrachus didactylus, a coastal sedentary fish that lives in intertidal environments of the Northeast Atlantic. Using respirometry in different experimental designs, we found that this species is highly resistant to acute thermal stress (CTmax: 34.82 ± 0.66 ◦C) and acute hypoxia (Pcrit: 0.59–1.97 mg O2 L−1). We found size-specific differences in this stress response, with smaller individuals being more sensitive. We also quantified its aerobic scope and daily activity patterns, finding this fish to be extremely sedentary, with one of the lowest standard metabolic rates found in temperate fish (SMR: 14.96 mg O2 kg−1h−1). H. didactylus activity increases at night, when its metabolic rate increases drastically (RMR: 36.01 mg O2 kg−1h−1). The maximum metabolic rate of H. didactylus was estimated to be 67.31 mg O2 kg−1h−1, producing an aerobic scope of 52.35 mg O2 kg−1h−1 (77.8% increase). The metrics obtained in this study prove that H. didactylus is remarkably resilient to acute environmental variations in temperature and oxygen content, which might enable it to adapt to the extreme abiotic conditions forecasted for the world’s oceans in the near future. Fil: Molina, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina Fil: Kunzmann, Andreas. Leibniz-Zentrum für Marine Tropenforschung; Alemania Fil: Pena Reis, João. Universidad de Algarve; Portugal Fil: Guerreiro, Pedro Miguel. Universidad de Algarve; ... |
format |
Article in Journal/Newspaper |
author |
Molina, Juan Manuel Kunzmann, Andreas Pena Reis, João Guerreiro, Pedro Miguel |
author_facet |
Molina, Juan Manuel Kunzmann, Andreas Pena Reis, João Guerreiro, Pedro Miguel |
author_sort |
Molina, Juan Manuel |
title |
Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801) |
title_short |
Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801) |
title_full |
Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801) |
title_fullStr |
Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801) |
title_full_unstemmed |
Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801) |
title_sort |
metabolic responses and resilience to environmental challenges in the sedentary batrachoid halobatrachus didactylus (bloch & schneider, 1801) |
publisher |
Multidisciplinary Digital Publishing Institute |
url |
http://hdl.handle.net/11336/233498 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-2615/13/4/632 info:eu-repo/semantics/altIdentifier/doi/10.3390/ani13040632 http://hdl.handle.net/11336/233498 Molina, Juan Manuel; Kunzmann, Andreas; Pena Reis, João; Guerreiro, Pedro Miguel; Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801); Multidisciplinary Digital Publishing Institute; Animals; 13; 4; 11-2-2023; 1 - 21 2076-2615 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.3390/ani13040632 |
container_title |
Animals |
container_volume |
13 |
container_issue |
4 |
container_start_page |
632 |
_version_ |
1799485972601110528 |