The cnidome and ultrastructural morphology of late planulae in Lophelia pertusa (Linnaeus, 1758) - With implications for settling competency
The larval pre-competency period and competency window are important in delimiting the potential dispersal distance for pelagic larvae of sessile marine fauna. Here, we provide evidence for morphological changes in the late planulae of Lophelia pertusa that have implications for their dispersal pote...
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Uppsala universitet, Evolution och utvecklingsbiologi
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ftuppsalauniv:oai:DiVA.org:uu-391392 2023-05-15T17:08:38+02:00 The cnidome and ultrastructural morphology of late planulae in Lophelia pertusa (Linnaeus, 1758) - With implications for settling competency Strömberg, Susanna Östman, Carina Larsson, Ann 2019 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-391392 https://doi.org/10.1111/azo.12296 eng eng Uppsala universitet, Evolution och utvecklingsbiologi Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, Strömstad, Sweden Acta Zoologica, 0001-7272, 2019, 100:4, s. 431-450 orcid:0000-0002-2345-0309 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-391392 doi:10.1111/azo.12296 ISI:000486083300008 info:eu-repo/semantics/openAccess cnidocyst cold-water coral larvae competency window scanning electron microscopy settling Zoology Zoologi Behavioral Sciences Biology Etologi Article in journal info:eu-repo/semantics/article text 2019 ftuppsalauniv https://doi.org/10.1111/azo.12296 2023-02-23T21:59:04Z The larval pre-competency period and competency window are important in delimiting the potential dispersal distance for pelagic larvae of sessile marine fauna. Here, we provide evidence for morphological changes in the late planulae of Lophelia pertusa that have implications for their dispersal potential. Three weeks after spawning, the planulae gain functional cnidocysts, indicating that they are competent to settle at this time. Cnidae have been shown to be used for primary anchoring during settling, and before this time point, the larvae most probably do not have the ability to attach to a substrate in high flow conditions. The appearance of functional cnidae coincides with larvae gaining a flexible mouth that can be opened to the full width of the larva. The larval isorhizas differ the most from the adult polyps isorhizas, while the p- and b-mastigophores bear more resemblance to the adult homologues of similar size. The external and internal morphology of late planulae is further described with demonstration of long apical cilia and its effect on swimming agility, morphological changes of the ciliated cells in the larval mouth region and an internal nerve plexus. This study also indicates that L. pertusa planulae seek out cryptic spaces for settling. Article in Journal/Newspaper Lophelia pertusa Uppsala University: Publications (DiVA) Acta Zoologica 100 4 431 450 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
cnidocyst cold-water coral larvae competency window scanning electron microscopy settling Zoology Zoologi Behavioral Sciences Biology Etologi |
spellingShingle |
cnidocyst cold-water coral larvae competency window scanning electron microscopy settling Zoology Zoologi Behavioral Sciences Biology Etologi Strömberg, Susanna Östman, Carina Larsson, Ann The cnidome and ultrastructural morphology of late planulae in Lophelia pertusa (Linnaeus, 1758) - With implications for settling competency |
topic_facet |
cnidocyst cold-water coral larvae competency window scanning electron microscopy settling Zoology Zoologi Behavioral Sciences Biology Etologi |
description |
The larval pre-competency period and competency window are important in delimiting the potential dispersal distance for pelagic larvae of sessile marine fauna. Here, we provide evidence for morphological changes in the late planulae of Lophelia pertusa that have implications for their dispersal potential. Three weeks after spawning, the planulae gain functional cnidocysts, indicating that they are competent to settle at this time. Cnidae have been shown to be used for primary anchoring during settling, and before this time point, the larvae most probably do not have the ability to attach to a substrate in high flow conditions. The appearance of functional cnidae coincides with larvae gaining a flexible mouth that can be opened to the full width of the larva. The larval isorhizas differ the most from the adult polyps isorhizas, while the p- and b-mastigophores bear more resemblance to the adult homologues of similar size. The external and internal morphology of late planulae is further described with demonstration of long apical cilia and its effect on swimming agility, morphological changes of the ciliated cells in the larval mouth region and an internal nerve plexus. This study also indicates that L. pertusa planulae seek out cryptic spaces for settling. |
format |
Article in Journal/Newspaper |
author |
Strömberg, Susanna Östman, Carina Larsson, Ann |
author_facet |
Strömberg, Susanna Östman, Carina Larsson, Ann |
author_sort |
Strömberg, Susanna |
title |
The cnidome and ultrastructural morphology of late planulae in Lophelia pertusa (Linnaeus, 1758) - With implications for settling competency |
title_short |
The cnidome and ultrastructural morphology of late planulae in Lophelia pertusa (Linnaeus, 1758) - With implications for settling competency |
title_full |
The cnidome and ultrastructural morphology of late planulae in Lophelia pertusa (Linnaeus, 1758) - With implications for settling competency |
title_fullStr |
The cnidome and ultrastructural morphology of late planulae in Lophelia pertusa (Linnaeus, 1758) - With implications for settling competency |
title_full_unstemmed |
The cnidome and ultrastructural morphology of late planulae in Lophelia pertusa (Linnaeus, 1758) - With implications for settling competency |
title_sort |
cnidome and ultrastructural morphology of late planulae in lophelia pertusa (linnaeus, 1758) - with implications for settling competency |
publisher |
Uppsala universitet, Evolution och utvecklingsbiologi |
publishDate |
2019 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-391392 https://doi.org/10.1111/azo.12296 |
genre |
Lophelia pertusa |
genre_facet |
Lophelia pertusa |
op_relation |
Acta Zoologica, 0001-7272, 2019, 100:4, s. 431-450 orcid:0000-0002-2345-0309 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-391392 doi:10.1111/azo.12296 ISI:000486083300008 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/azo.12296 |
container_title |
Acta Zoologica |
container_volume |
100 |
container_issue |
4 |
container_start_page |
431 |
op_container_end_page |
450 |
_version_ |
1766064449998815232 |