Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab

Oxygen availability, together with water temperature, greatly varies in coastal habitats, especially in those characterized by elevated primary production. In this study, we investigate the combined role of dissolved oxygen and temperature on the thermal physiological response of the mud crab Thalam...

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Autores principales:	Marco Fusi, Daniele Daffonchio, Jenny Booth, Folco Giomi
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	coastal habitats mangrove seagrasses oxygen saturation temperature-independent metabolism Thalamita crenata Science Q General. Including nature conservation, geographical distribution QH1-199.5
Acceso en línea:	https://doaj.org/article/d2949250cc344f07a91940258a712e20
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spelling	oai:doaj.org-article:d2949250cc344f07a91940258a712e202021-12-01T07:54:00ZDissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab2296-774510.3389/fmars.2021.767471https://doaj.org/article/d2949250cc344f07a91940258a712e202021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmars.2021.767471/fullhttps://doaj.org/toc/2296-7745Oxygen availability, together with water temperature, greatly varies in coastal habitats, especially in those characterized by elevated primary production. In this study, we investigate the combined role of dissolved oxygen and temperature on the thermal physiological response of the mud crab Thalamita crenata living in an equatorial system of coastal habitats. We sampled temperature, oxygen and salinity in T. crenata habitats, mangrove creeks and fringes and seagrass meadows, at Gazi Bay (Kenya). We found that seagrass meadows exhibited higher temperature and oxygen saturation than the mangrove habitats during the day, creating conditions of oxygen supersaturation. By investigating the effect of different levels of oxygen saturation on the thermal response of T. crenata, we demonstrated that the respiratory physiology of this ectotherm has a pronounced resistance to heat, directly influenced by the amount of dissolved oxygen in the water. Under low oxygen saturation levels, the mud crab significantly reduced its metabolism, becoming temperature-independent. This result shows that aquatic species can modulate their thermal response in a stringent dependency with water oxygen saturation, corroborating previous findings on the thermal response of T. crenata under supersaturation. This contribution provides further support for the need to adopt an ecologically-relevant approach to forecast the effect of climate change on marine ectothermal species.Marco FusiMarco FusiDaniele DaffonchioJenny BoothFolco GiomiFrontiers Media S.A.articlecoastal habitatsmangroveseagrassesoxygen saturationtemperature-independent metabolismThalamita crenataScienceQGeneral. Including nature conservation, geographical distributionQH1-199.5ENFrontiers in Marine Science, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coastal habitats mangrove seagrasses oxygen saturation temperature-independent metabolism Thalamita crenata Science Q General. Including nature conservation, geographical distribution QH1-199.5
spellingShingle	coastal habitats mangrove seagrasses oxygen saturation temperature-independent metabolism Thalamita crenata Science Q General. Including nature conservation, geographical distribution QH1-199.5 Marco Fusi Marco Fusi Daniele Daffonchio Jenny Booth Folco Giomi Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab
description	Oxygen availability, together with water temperature, greatly varies in coastal habitats, especially in those characterized by elevated primary production. In this study, we investigate the combined role of dissolved oxygen and temperature on the thermal physiological response of the mud crab Thalamita crenata living in an equatorial system of coastal habitats. We sampled temperature, oxygen and salinity in T. crenata habitats, mangrove creeks and fringes and seagrass meadows, at Gazi Bay (Kenya). We found that seagrass meadows exhibited higher temperature and oxygen saturation than the mangrove habitats during the day, creating conditions of oxygen supersaturation. By investigating the effect of different levels of oxygen saturation on the thermal response of T. crenata, we demonstrated that the respiratory physiology of this ectotherm has a pronounced resistance to heat, directly influenced by the amount of dissolved oxygen in the water. Under low oxygen saturation levels, the mud crab significantly reduced its metabolism, becoming temperature-independent. This result shows that aquatic species can modulate their thermal response in a stringent dependency with water oxygen saturation, corroborating previous findings on the thermal response of T. crenata under supersaturation. This contribution provides further support for the need to adopt an ecologically-relevant approach to forecast the effect of climate change on marine ectothermal species.
format	article
author	Marco Fusi Marco Fusi Daniele Daffonchio Jenny Booth Folco Giomi
author_facet	Marco Fusi Marco Fusi Daniele Daffonchio Jenny Booth Folco Giomi
author_sort	Marco Fusi
title	Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab
title_short	Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab
title_full	Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab
title_fullStr	Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab
title_full_unstemmed	Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab
title_sort	dissolved oxygen in heterogeneous environments dictates the metabolic rate and thermal sensitivity of a tropical aquatic crab
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/d2949250cc344f07a91940258a712e20
work_keys_str_mv	AT marcofusi dissolvedoxygeninheterogeneousenvironmentsdictatesthemetabolicrateandthermalsensitivityofatropicalaquaticcrab AT marcofusi dissolvedoxygeninheterogeneousenvironmentsdictatesthemetabolicrateandthermalsensitivityofatropicalaquaticcrab AT danieledaffonchio dissolvedoxygeninheterogeneousenvironmentsdictatesthemetabolicrateandthermalsensitivityofatropicalaquaticcrab AT jennybooth dissolvedoxygeninheterogeneousenvironmentsdictatesthemetabolicrateandthermalsensitivityofatropicalaquaticcrab AT folcogiomi dissolvedoxygeninheterogeneousenvironmentsdictatesthemetabolicrateandthermalsensitivityofatropicalaquaticcrab
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Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab

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