Comparative biometry and isotopy of three dominant pennatulacean corals in the Northwest Atlantic
Abstract Spatial and temporal shifts in biometric features were examined in three common deep‐water pennatulacean corals (sea pens) from the Northwest Atlantic: Anthoptilum grandiflorum , Halipteris finmarchica and Pennatula aculeata . These three species show different morphological characters and...
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crwiley:10.1111/azo.12141 2024-06-23T07:55:40+00:00 Comparative biometry and isotopy of three dominant pennatulacean corals in the Northwest Atlantic Baillon, Sandrine English, Matthew Hamel, Jean‐François Mercier, Annie Natural Sciences and Engineering Research Council of Canada 2015 http://dx.doi.org/10.1111/azo.12141 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fazo.12141 https://onlinelibrary.wiley.com/doi/pdf/10.1111/azo.12141 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Acta Zoologica volume 97, issue 4, page 475-493 ISSN 0001-7272 1463-6395 journal-article 2015 crwiley https://doi.org/10.1111/azo.12141 2024-06-06T04:23:06Z Abstract Spatial and temporal shifts in biometric features were examined in three common deep‐water pennatulacean corals (sea pens) from the Northwest Atlantic: Anthoptilum grandiflorum , Halipteris finmarchica and Pennatula aculeata . These three species show different morphological characters and adaptations to their environment. Analyses of colony length, ratio of peduncle to colony length, weight/length ratio, polyp size and density as well as sclerite shape, location and abundance indicate that their phenotype is modulated by environmental factors (e.g. food availability, currents and sediment type) and antipredator strategies. Moreover, the three species had different carbon and nitrogen stable isotope signatures that could be explain primarily by their different polyp diameters and colony shapes, suggesting that they rely on slightly different food sources (varying proportions of phytodetritus and zooplankton). Finally, sclerites were found only in H. finmarchica and P. aculeata and are not known to occur in A. grandiflorum , except for minute oval bodies inside the peduncle. The Mg/Ca ratio of sclerites differed between the two species and, for P. aculeata , among types of sclerites, evoking different biomineralization pathways related to their functional roles (structural support or defence). Overall, this study provides new information on the ecology of poorly known species, which are ubiquitous and suspected to play an important ecological role in deep‐water ecosystems. Article in Journal/Newspaper Northwest Atlantic Wiley Online Library Acta Zoologica 97 4 475 493 |
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Wiley Online Library |
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English |
description |
Abstract Spatial and temporal shifts in biometric features were examined in three common deep‐water pennatulacean corals (sea pens) from the Northwest Atlantic: Anthoptilum grandiflorum , Halipteris finmarchica and Pennatula aculeata . These three species show different morphological characters and adaptations to their environment. Analyses of colony length, ratio of peduncle to colony length, weight/length ratio, polyp size and density as well as sclerite shape, location and abundance indicate that their phenotype is modulated by environmental factors (e.g. food availability, currents and sediment type) and antipredator strategies. Moreover, the three species had different carbon and nitrogen stable isotope signatures that could be explain primarily by their different polyp diameters and colony shapes, suggesting that they rely on slightly different food sources (varying proportions of phytodetritus and zooplankton). Finally, sclerites were found only in H. finmarchica and P. aculeata and are not known to occur in A. grandiflorum , except for minute oval bodies inside the peduncle. The Mg/Ca ratio of sclerites differed between the two species and, for P. aculeata , among types of sclerites, evoking different biomineralization pathways related to their functional roles (structural support or defence). Overall, this study provides new information on the ecology of poorly known species, which are ubiquitous and suspected to play an important ecological role in deep‐water ecosystems. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Baillon, Sandrine English, Matthew Hamel, Jean‐François Mercier, Annie |
spellingShingle |
Baillon, Sandrine English, Matthew Hamel, Jean‐François Mercier, Annie Comparative biometry and isotopy of three dominant pennatulacean corals in the Northwest Atlantic |
author_facet |
Baillon, Sandrine English, Matthew Hamel, Jean‐François Mercier, Annie |
author_sort |
Baillon, Sandrine |
title |
Comparative biometry and isotopy of three dominant pennatulacean corals in the Northwest Atlantic |
title_short |
Comparative biometry and isotopy of three dominant pennatulacean corals in the Northwest Atlantic |
title_full |
Comparative biometry and isotopy of three dominant pennatulacean corals in the Northwest Atlantic |
title_fullStr |
Comparative biometry and isotopy of three dominant pennatulacean corals in the Northwest Atlantic |
title_full_unstemmed |
Comparative biometry and isotopy of three dominant pennatulacean corals in the Northwest Atlantic |
title_sort |
comparative biometry and isotopy of three dominant pennatulacean corals in the northwest atlantic |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/azo.12141 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fazo.12141 https://onlinelibrary.wiley.com/doi/pdf/10.1111/azo.12141 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Acta Zoologica volume 97, issue 4, page 475-493 ISSN 0001-7272 1463-6395 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/azo.12141 |
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Acta Zoologica |
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97 |
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4 |
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475 |
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493 |
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1802648333854965760 |