Population structure, habitat preferences, feeding strategies, and diet of the brittle star Ophiopholis aculeata in nearshore and offshore habitats of the northwest Atlantic
Abstract Ophiopholis aculeata is a ubiquitous brittle star (Echinodermata: Ophiuroidea) known to occur from the upper subtidal to the bathyal zone. Individuals from shallow inshore habitats (rhodolith beds and rock fields) and deeper offshore locations in eastern Canada were studied to assess the po...
Published in: | Invertebrate Biology |
---|---|
Main Authors: | , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/ivb.12346 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ivb.12346 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ivb.12346 |
id |
crwiley:10.1111/ivb.12346 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/ivb.12346 2024-09-15T18:26:21+00:00 Population structure, habitat preferences, feeding strategies, and diet of the brittle star Ophiopholis aculeata in nearshore and offshore habitats of the northwest Atlantic Volage, Fanny Hamel, Jean‐François Mercier, Annie Canada Foundation for Innovation Natural Sciences and Engineering Research Council of Canada 2021 http://dx.doi.org/10.1111/ivb.12346 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ivb.12346 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ivb.12346 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Invertebrate Biology volume 140, issue 3 ISSN 1077-8306 1744-7410 journal-article 2021 crwiley https://doi.org/10.1111/ivb.12346 2024-09-05T05:09:50Z Abstract Ophiopholis aculeata is a ubiquitous brittle star (Echinodermata: Ophiuroidea) known to occur from the upper subtidal to the bathyal zone. Individuals from shallow inshore habitats (rhodolith beds and rock fields) and deeper offshore locations in eastern Canada were studied to assess the population structure, habitat selection, diet, and feeding strategies of this species through use of stable isotope analyses, gut contents, and laboratory experiments. Potential drivers of habitat selection such as depth, light conditions, body size, sex, intraspecific competition, and presence of predators were examined. This study highlighted variable population size structures and abundances as well as diversified food sources and feeding strategies (i.e., suspension and deposit feeding, scavenging, predation on live organisms, and even cannibalism) as a function of native depth and habitat. It also revealed that studies on the feeding biology of brittle stars must carefully consider sex and life stage as driving factors. Article in Journal/Newspaper Northwest Atlantic Wiley Online Library Invertebrate Biology 140 3 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Ophiopholis aculeata is a ubiquitous brittle star (Echinodermata: Ophiuroidea) known to occur from the upper subtidal to the bathyal zone. Individuals from shallow inshore habitats (rhodolith beds and rock fields) and deeper offshore locations in eastern Canada were studied to assess the population structure, habitat selection, diet, and feeding strategies of this species through use of stable isotope analyses, gut contents, and laboratory experiments. Potential drivers of habitat selection such as depth, light conditions, body size, sex, intraspecific competition, and presence of predators were examined. This study highlighted variable population size structures and abundances as well as diversified food sources and feeding strategies (i.e., suspension and deposit feeding, scavenging, predation on live organisms, and even cannibalism) as a function of native depth and habitat. It also revealed that studies on the feeding biology of brittle stars must carefully consider sex and life stage as driving factors. |
author2 |
Canada Foundation for Innovation Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Volage, Fanny Hamel, Jean‐François Mercier, Annie |
spellingShingle |
Volage, Fanny Hamel, Jean‐François Mercier, Annie Population structure, habitat preferences, feeding strategies, and diet of the brittle star Ophiopholis aculeata in nearshore and offshore habitats of the northwest Atlantic |
author_facet |
Volage, Fanny Hamel, Jean‐François Mercier, Annie |
author_sort |
Volage, Fanny |
title |
Population structure, habitat preferences, feeding strategies, and diet of the brittle star Ophiopholis aculeata in nearshore and offshore habitats of the northwest Atlantic |
title_short |
Population structure, habitat preferences, feeding strategies, and diet of the brittle star Ophiopholis aculeata in nearshore and offshore habitats of the northwest Atlantic |
title_full |
Population structure, habitat preferences, feeding strategies, and diet of the brittle star Ophiopholis aculeata in nearshore and offshore habitats of the northwest Atlantic |
title_fullStr |
Population structure, habitat preferences, feeding strategies, and diet of the brittle star Ophiopholis aculeata in nearshore and offshore habitats of the northwest Atlantic |
title_full_unstemmed |
Population structure, habitat preferences, feeding strategies, and diet of the brittle star Ophiopholis aculeata in nearshore and offshore habitats of the northwest Atlantic |
title_sort |
population structure, habitat preferences, feeding strategies, and diet of the brittle star ophiopholis aculeata in nearshore and offshore habitats of the northwest atlantic |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/ivb.12346 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ivb.12346 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ivb.12346 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Invertebrate Biology volume 140, issue 3 ISSN 1077-8306 1744-7410 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/ivb.12346 |
container_title |
Invertebrate Biology |
container_volume |
140 |
container_issue |
3 |
_version_ |
1810466836882391040 |