Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora)
Polyplacophoran molluscs (chitons) are phylogenetically ancient and morphologically constrained, yet multiple living species are often found co-occurring within widely overlapping ecological niches. This study used two sets of experiments to compare interspecific variation among co-occurring species...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2013
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Online Access: | https://pure.qub.ac.uk/en/publications/2a4ed3ac-ca30-4474-bf76-69d19094b458 https://doi.org/10.1017/S0025315412000653 |
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ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/2a4ed3ac-ca30-4474-bf76-69d19094b458 2024-05-19T07:45:00+00:00 Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) Carey, Nicholas Galkin, Alexander Henriksson, Patrik Richards, Jeffrey G. Sigwart, Julia D. 2013-02 https://pure.qub.ac.uk/en/publications/2a4ed3ac-ca30-4474-bf76-69d19094b458 https://doi.org/10.1017/S0025315412000653 eng eng https://pure.qub.ac.uk/en/publications/2a4ed3ac-ca30-4474-bf76-69d19094b458 info:eu-repo/semantics/closedAccess Carey , N , Galkin , A , Henriksson , P , Richards , J G & Sigwart , J D 2013 , ' Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) ' , Journal of the Marine Biological Association of the United Kingdom , vol. 93 , no. 1 , pp. 197-207 . https://doi.org/10.1017/S0025315412000653 article 2013 ftqueensubelpubl https://doi.org/10.1017/S0025315412000653 2024-05-02T00:12:28Z Polyplacophoran molluscs (chitons) are phylogenetically ancient and morphologically constrained, yet multiple living species are often found co-occurring within widely overlapping ecological niches. This study used two sets of experiments to compare interspecific variation among co-occurring species in the North Atlantic (Ireland) and separately in the North Pacific (British Columbia, Canada) chiton faunas. A complementary review of historical literature on polyplacophoran physiology provides an overview of the high level of metabolic variability in this group of 'living fossils'. Species examined in de novo experiments showed significant variation in oxygen consumption both under air-saturated water conditions (normoxia), and in response to decreasing oxygen availability (hypoxia). Some species demonstrate an ability to maintain constant oxygen uptake rates despite hypoxia (oxyregulators), while others oxyconform, with uptake rate dependent on ambient oxygen tension. These organisms are often amalgamated in studies of benthic communities, yet show obvious physiological difference that may impact their response or tolerance to environmental change. Article in Journal/Newspaper North Atlantic Queen's University Belfast Research Portal Journal of the Marine Biological Association of the United Kingdom 93 1 197 207 |
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Open Polar |
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Queen's University Belfast Research Portal |
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ftqueensubelpubl |
language |
English |
description |
Polyplacophoran molluscs (chitons) are phylogenetically ancient and morphologically constrained, yet multiple living species are often found co-occurring within widely overlapping ecological niches. This study used two sets of experiments to compare interspecific variation among co-occurring species in the North Atlantic (Ireland) and separately in the North Pacific (British Columbia, Canada) chiton faunas. A complementary review of historical literature on polyplacophoran physiology provides an overview of the high level of metabolic variability in this group of 'living fossils'. Species examined in de novo experiments showed significant variation in oxygen consumption both under air-saturated water conditions (normoxia), and in response to decreasing oxygen availability (hypoxia). Some species demonstrate an ability to maintain constant oxygen uptake rates despite hypoxia (oxyregulators), while others oxyconform, with uptake rate dependent on ambient oxygen tension. These organisms are often amalgamated in studies of benthic communities, yet show obvious physiological difference that may impact their response or tolerance to environmental change. |
format |
Article in Journal/Newspaper |
author |
Carey, Nicholas Galkin, Alexander Henriksson, Patrik Richards, Jeffrey G. Sigwart, Julia D. |
spellingShingle |
Carey, Nicholas Galkin, Alexander Henriksson, Patrik Richards, Jeffrey G. Sigwart, Julia D. Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) |
author_facet |
Carey, Nicholas Galkin, Alexander Henriksson, Patrik Richards, Jeffrey G. Sigwart, Julia D. |
author_sort |
Carey, Nicholas |
title |
Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) |
title_short |
Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) |
title_full |
Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) |
title_fullStr |
Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) |
title_full_unstemmed |
Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) |
title_sort |
variation in oxygen consumption among 'living fossils' (mollusca: polyplacophora) |
publishDate |
2013 |
url |
https://pure.qub.ac.uk/en/publications/2a4ed3ac-ca30-4474-bf76-69d19094b458 https://doi.org/10.1017/S0025315412000653 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Carey , N , Galkin , A , Henriksson , P , Richards , J G & Sigwart , J D 2013 , ' Variation in oxygen consumption among 'living fossils' (Mollusca: Polyplacophora) ' , Journal of the Marine Biological Association of the United Kingdom , vol. 93 , no. 1 , pp. 197-207 . https://doi.org/10.1017/S0025315412000653 |
op_relation |
https://pure.qub.ac.uk/en/publications/2a4ed3ac-ca30-4474-bf76-69d19094b458 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1017/S0025315412000653 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
93 |
container_issue |
1 |
container_start_page |
197 |
op_container_end_page |
207 |
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1799484911483092992 |