Ontogenetic development of the crinoid Poliometra prolixain the Arctic deep sea
Abstract Poliometra prolixa is a common species of comatulid crinoid in the Arctic deep sea. In this study, we characterize the ontogenetic development through the cystidean and pentacrinoid stages, using specimens from the LTER (Long‐Term Ecological Research) observatory HAUSGARTEN in the Fram Stra...
Published in: | Invertebrate Biology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/ivb.12331 |
id |
crwiley:10.1111/ivb.12331 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/ivb.12331 2024-06-02T08:01:21+00:00 Ontogenetic development of the crinoid Poliometra prolixain the Arctic deep sea Meyer‐Kaiser, Kirstin Smith, Amelia Soltwedel, Thomas 2021 http://dx.doi.org/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/ivb.12331 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Invertebrate Biology volume 140, issue 2 ISSN 1077-8306 1744-7410 journal-article 2021 crwiley https://doi.org/10.1111/ivb.12331 2024-05-03T10:39:42Z Abstract Poliometra prolixa is a common species of comatulid crinoid in the Arctic deep sea. In this study, we characterize the ontogenetic development through the cystidean and pentacrinoid stages, using specimens from the LTER (Long‐Term Ecological Research) observatory HAUSGARTEN in the Fram Strait, Arctic Ocean. While embryos and early larval stages (e.g., the doliolaria) were not observed, both post‐settlement stages and adults of P. prolixa were observed on the same moored experimental platform at 2,500 m water depth, suggesting that larvae of P. prolixa do not disperse far from their mothers. This indicates that doliolariae may have an abbreviated pelagic duration period or may be brooded in this species. The cystidean has a short, translucent stalk with a star‐shaped attachment disc and a diamond‐shaped translucent head. Metamorphosis from the cystidean to the pentacrinoid is characterized by the formation of brachial ossicles from oral ossicles and by fusion of the basal and radial ossicles to form the calyx. The pentacrinoid stalk is opaque and first develops synarthrial joints at the distal end. Late pentacrinoids have a xenomorphic stalk, bifurcated arms with pinnules, and cirri. We discuss the reproductive and ecological niche of P. prolixa and also consider the question of whether cystidean and pentacrinoid stages undergo metamorphosis. Article in Journal/Newspaper Arctic Arctic Ocean Fram Strait Wiley Online Library Arctic Arctic Ocean Invertebrate Biology 140 2 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Poliometra prolixa is a common species of comatulid crinoid in the Arctic deep sea. In this study, we characterize the ontogenetic development through the cystidean and pentacrinoid stages, using specimens from the LTER (Long‐Term Ecological Research) observatory HAUSGARTEN in the Fram Strait, Arctic Ocean. While embryos and early larval stages (e.g., the doliolaria) were not observed, both post‐settlement stages and adults of P. prolixa were observed on the same moored experimental platform at 2,500 m water depth, suggesting that larvae of P. prolixa do not disperse far from their mothers. This indicates that doliolariae may have an abbreviated pelagic duration period or may be brooded in this species. The cystidean has a short, translucent stalk with a star‐shaped attachment disc and a diamond‐shaped translucent head. Metamorphosis from the cystidean to the pentacrinoid is characterized by the formation of brachial ossicles from oral ossicles and by fusion of the basal and radial ossicles to form the calyx. The pentacrinoid stalk is opaque and first develops synarthrial joints at the distal end. Late pentacrinoids have a xenomorphic stalk, bifurcated arms with pinnules, and cirri. We discuss the reproductive and ecological niche of P. prolixa and also consider the question of whether cystidean and pentacrinoid stages undergo metamorphosis. |
format |
Article in Journal/Newspaper |
author |
Meyer‐Kaiser, Kirstin Smith, Amelia Soltwedel, Thomas |
spellingShingle |
Meyer‐Kaiser, Kirstin Smith, Amelia Soltwedel, Thomas Ontogenetic development of the crinoid Poliometra prolixain the Arctic deep sea |
author_facet |
Meyer‐Kaiser, Kirstin Smith, Amelia Soltwedel, Thomas |
author_sort |
Meyer‐Kaiser, Kirstin |
title |
Ontogenetic development of the crinoid Poliometra prolixain the Arctic deep sea |
title_short |
Ontogenetic development of the crinoid Poliometra prolixain the Arctic deep sea |
title_full |
Ontogenetic development of the crinoid Poliometra prolixain the Arctic deep sea |
title_fullStr |
Ontogenetic development of the crinoid Poliometra prolixain the Arctic deep sea |
title_full_unstemmed |
Ontogenetic development of the crinoid Poliometra prolixain the Arctic deep sea |
title_sort |
ontogenetic development of the crinoid poliometra prolixain the arctic deep sea |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ivb.12331 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/ivb.12331 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Fram Strait |
genre_facet |
Arctic Arctic Ocean Fram Strait |
op_source |
Invertebrate Biology volume 140, issue 2 ISSN 1077-8306 1744-7410 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/ivb.12331 |
container_title |
Invertebrate Biology |
container_volume |
140 |
container_issue |
2 |
_version_ |
1800745677449330688 |