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Phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral
Biological rhythms are widely known in terrestrial and marine systems, where the behaviour or function of organisms may be tuned to environmental variation over periods from minutes to seasons or longer. Although well characterized in coastal environments, phenology remains poorly understood in the...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9579760/ https://www.ncbi.nlm.nih.gov/pubmed/36259212 http://dx.doi.org/10.1098/rspb.2022.1033 |
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author | Girard, Fanny Litvin, Steven Y. Sherman, Alana McGill, Paul Gannon, Amanda Lovera, Christopher DeVogelaere, Andrew Burton, Erica Graves, Dale Schnittger, Aaron Barry, Jim |
author_facet | Girard, Fanny Litvin, Steven Y. Sherman, Alana McGill, Paul Gannon, Amanda Lovera, Christopher DeVogelaere, Andrew Burton, Erica Graves, Dale Schnittger, Aaron Barry, Jim |
author_sort | Girard, Fanny |
collection | PubMed |
description | Biological rhythms are widely known in terrestrial and marine systems, where the behaviour or function of organisms may be tuned to environmental variation over periods from minutes to seasons or longer. Although well characterized in coastal environments, phenology remains poorly understood in the deep sea. Here we characterized intra-annual dynamics of feeding activity for the deep-sea octocoral Paragorgia arborea. Hourly changes in polyp activity were quantified using a time-lapse camera deployed for a year on Sur Ridge (1230 m depth; Northeast Pacific). The relationship between feeding and environmental variables, including surface primary production, temperature, acoustic backscatter, current speed and direction, was evaluated. Feeding activity was highly seasonal, with a dormancy period identified between January and early April, reflecting seasonal changes in food availability as suggested by primary production and acoustic backscatter data. Moreover, feeding varied with tides, which likely affected food delivery through cyclic oscillation in current speed and direction. This study provides the first evidence of behavioural rhythms in a coral species at depth greater than 1 km. Information on the feeding biology of this cosmopolitan deep-sea octocoral will contribute to a better understanding of how future environmental change may affect deep-sea coral communities and the ecosystem services they provide. |
format | Online Article Text |
id | pubmed-9579760 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-95797602022-10-28 Phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral Girard, Fanny Litvin, Steven Y. Sherman, Alana McGill, Paul Gannon, Amanda Lovera, Christopher DeVogelaere, Andrew Burton, Erica Graves, Dale Schnittger, Aaron Barry, Jim Proc Biol Sci Ecology Biological rhythms are widely known in terrestrial and marine systems, where the behaviour or function of organisms may be tuned to environmental variation over periods from minutes to seasons or longer. Although well characterized in coastal environments, phenology remains poorly understood in the deep sea. Here we characterized intra-annual dynamics of feeding activity for the deep-sea octocoral Paragorgia arborea. Hourly changes in polyp activity were quantified using a time-lapse camera deployed for a year on Sur Ridge (1230 m depth; Northeast Pacific). The relationship between feeding and environmental variables, including surface primary production, temperature, acoustic backscatter, current speed and direction, was evaluated. Feeding activity was highly seasonal, with a dormancy period identified between January and early April, reflecting seasonal changes in food availability as suggested by primary production and acoustic backscatter data. Moreover, feeding varied with tides, which likely affected food delivery through cyclic oscillation in current speed and direction. This study provides the first evidence of behavioural rhythms in a coral species at depth greater than 1 km. Information on the feeding biology of this cosmopolitan deep-sea octocoral will contribute to a better understanding of how future environmental change may affect deep-sea coral communities and the ecosystem services they provide. The Royal Society 2022-10-26 2022-10-19 /pmc/articles/PMC9579760/ /pubmed/36259212 http://dx.doi.org/10.1098/rspb.2022.1033 Text en © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Ecology Girard, Fanny Litvin, Steven Y. Sherman, Alana McGill, Paul Gannon, Amanda Lovera, Christopher DeVogelaere, Andrew Burton, Erica Graves, Dale Schnittger, Aaron Barry, Jim Phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral |
title | Phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral |
title_full | Phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral |
title_fullStr | Phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral |
title_full_unstemmed | Phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral |
title_short | Phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral |
title_sort | phenology in the deep sea: seasonal and tidal feeding rhythms in a keystone octocoral |
topic | Ecology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9579760/ https://www.ncbi.nlm.nih.gov/pubmed/36259212 http://dx.doi.org/10.1098/rspb.2022.1033 |
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