Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect
The stenothermal Antarctic fish that live in the coastal waters of the Terra Nova Bay (Ross Sea) are rarely exposed to temperatures above zero during the year. We tested whether a slight temperature rise of 1.5 °C affects a sensitive biomarker such as erythrocytes morphology in sections of blood pel...
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ftunitriestiris:oai:arts.units.it:11368/3007667 2023-05-15T14:13:42+02:00 Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect Rizzotti D. Manfrin C. Gerdol M. Greco S. Santovito G. Giulianini P. G. Rizzotti, D. Manfrin, C. Gerdol, M. Greco, S. Santovito, G. Giulianini, P. G. 2022 STAMPA http://hdl.handle.net/11368/3007667 https://doi.org/10.1016/j.jtherbio.2021.103139 https://www.sciencedirect.com/science/article/pii/S0306456521003077?pes=vor eng eng info:eu-repo/semantics/altIdentifier/pmid/35027197 volume:103 firstpage:"-" lastpage:"-" numberofpages:8 journal:JOURNAL OF THERMAL BIOLOGY http://hdl.handle.net/11368/3007667 doi:10.1016/j.jtherbio.2021.103139 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85121264574 https://www.sciencedirect.com/science/article/pii/S0306456521003077?pes=vor info:eu-repo/semantics/openAccess Biomarker Shape descriptor Stabling Trematomus bernacchii info:eu-repo/semantics/article 2022 ftunitriestiris https://doi.org/10.1016/j.jtherbio.2021.103139 2023-04-09T06:21:08Z The stenothermal Antarctic fish that live in the coastal waters of the Terra Nova Bay (Ross Sea) are rarely exposed to temperatures above zero during the year. We tested whether a slight temperature rise of 1.5 °C affects a sensitive biomarker such as erythrocytes morphology in sections of blood pellets of a small demersal notothen. The erythrocytes' shape descriptors showed significant or highly significant differences temporally from the capture of fish to the conclusion of the experiment. Surprisingly, the erythrocyte's morphology did not show significant differences between the two experimental conditions, returning similar results in control fish stabled at −0.9 °C and in the fish treated at +0.6 °C, although the values of the shape descriptors were often lower in the latter. This study demonstrates the critical issues of comparative physiology in the study of extremely sensitive organisms, such as the fish of the High Antarctic Zone. Moreover, the stabling effect inside the aquarium facilities appears to significantly obscure the effects of the experimental heat treatment. Article in Journal/Newspaper Antarc* Antarctic Ross Sea Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) Antarctic Ross Sea Terra Nova Bay Journal of Thermal Biology 103 103139 |
institution |
Open Polar |
collection |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
op_collection_id |
ftunitriestiris |
language |
English |
topic |
Biomarker Shape descriptor Stabling Trematomus bernacchii |
spellingShingle |
Biomarker Shape descriptor Stabling Trematomus bernacchii Rizzotti D. Manfrin C. Gerdol M. Greco S. Santovito G. Giulianini P. G. Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect |
topic_facet |
Biomarker Shape descriptor Stabling Trematomus bernacchii |
description |
The stenothermal Antarctic fish that live in the coastal waters of the Terra Nova Bay (Ross Sea) are rarely exposed to temperatures above zero during the year. We tested whether a slight temperature rise of 1.5 °C affects a sensitive biomarker such as erythrocytes morphology in sections of blood pellets of a small demersal notothen. The erythrocytes' shape descriptors showed significant or highly significant differences temporally from the capture of fish to the conclusion of the experiment. Surprisingly, the erythrocyte's morphology did not show significant differences between the two experimental conditions, returning similar results in control fish stabled at −0.9 °C and in the fish treated at +0.6 °C, although the values of the shape descriptors were often lower in the latter. This study demonstrates the critical issues of comparative physiology in the study of extremely sensitive organisms, such as the fish of the High Antarctic Zone. Moreover, the stabling effect inside the aquarium facilities appears to significantly obscure the effects of the experimental heat treatment. |
author2 |
Rizzotti, D. Manfrin, C. Gerdol, M. Greco, S. Santovito, G. Giulianini, P. G. |
format |
Article in Journal/Newspaper |
author |
Rizzotti D. Manfrin C. Gerdol M. Greco S. Santovito G. Giulianini P. G. |
author_facet |
Rizzotti D. Manfrin C. Gerdol M. Greco S. Santovito G. Giulianini P. G. |
author_sort |
Rizzotti D. |
title |
Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect |
title_short |
Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect |
title_full |
Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect |
title_fullStr |
Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect |
title_full_unstemmed |
Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect |
title_sort |
morphological analysis of erythrocytes of an antarctic teleost under heat stress: bias of the stabling effect |
publishDate |
2022 |
url |
http://hdl.handle.net/11368/3007667 https://doi.org/10.1016/j.jtherbio.2021.103139 https://www.sciencedirect.com/science/article/pii/S0306456521003077?pes=vor |
geographic |
Antarctic Ross Sea Terra Nova Bay |
geographic_facet |
Antarctic Ross Sea Terra Nova Bay |
genre |
Antarc* Antarctic Ross Sea |
genre_facet |
Antarc* Antarctic Ross Sea |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/35027197 volume:103 firstpage:"-" lastpage:"-" numberofpages:8 journal:JOURNAL OF THERMAL BIOLOGY http://hdl.handle.net/11368/3007667 doi:10.1016/j.jtherbio.2021.103139 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85121264574 https://www.sciencedirect.com/science/article/pii/S0306456521003077?pes=vor |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.jtherbio.2021.103139 |
container_title |
Journal of Thermal Biology |
container_volume |
103 |
container_start_page |
103139 |
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1766286188698664960 |