Embryogenesis and Larval Biology of the Cold-Water Coral Lophelia pertusa
Cold-water coral reefs form spectacular and highly diverse ecosystems in the deep sea but little is known about reproduction, and virtually nothing about the larval biology in these corals. This study is based on data from two locations of the North East Atlantic and documents the first observations...
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ftpubmed:oai:pubmedcentral.nih.gov:4100773 2023-05-15T17:08:38+02:00 Embryogenesis and Larval Biology of the Cold-Water Coral Lophelia pertusa Larsson, Ann I. Järnegren, Johanna Strömberg, Susanna M. Dahl, Mikael P. Lundälv, Tomas Brooke, Sandra 2014-07-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4100773 http://www.ncbi.nlm.nih.gov/pubmed/25028936 https://doi.org/10.1371/journal.pone.0102222 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25028936 http://dx.doi.org/10.1371/journal.pone.0102222 This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2014 ftpubmed https://doi.org/10.1371/journal.pone.0102222 2014-07-20T01:07:17Z Cold-water coral reefs form spectacular and highly diverse ecosystems in the deep sea but little is known about reproduction, and virtually nothing about the larval biology in these corals. This study is based on data from two locations of the North East Atlantic and documents the first observations of embryogenesis and larval development in Lophelia pertusa, the most common framework-building cold-water scleractinian. Embryos developed in a more or less organized radial cleavage pattern from ∼160 µm large neutral or negatively buoyant eggs, to 120–270 µm long ciliated planulae. Embryogenesis was slow with cleavage occurring at intervals of 6–8 hours up to the 64-cell stage. Genetically characterized larvae were sexually derived, with maternal and paternal alleles present. Larvae were active swimmers (0.5 mm s−1) initially residing in the upper part of the water column, with bottom probing behavior starting 3–5 weeks after fertilization. Nematocysts had developed by day 30, coinciding with peak bottom-probing behavior, and possibly an indication that larvae are fully competent to settle at this time. Planulae survived for eight weeks under laboratory conditions, and preliminary results indicate that these planulae are planktotrophic. The late onset of competency and larval longevity suggests a high dispersal potential. Understanding larval biology and behavior is of paramount importance for biophysical modeling of larval dispersal, which forms the basis for predictions of connectivity among populations. Text Lophelia pertusa North East Atlantic PubMed Central (PMC) PLoS ONE 9 7 e102222 |
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Research Article Larsson, Ann I. Järnegren, Johanna Strömberg, Susanna M. Dahl, Mikael P. Lundälv, Tomas Brooke, Sandra Embryogenesis and Larval Biology of the Cold-Water Coral Lophelia pertusa |
topic_facet |
Research Article |
description |
Cold-water coral reefs form spectacular and highly diverse ecosystems in the deep sea but little is known about reproduction, and virtually nothing about the larval biology in these corals. This study is based on data from two locations of the North East Atlantic and documents the first observations of embryogenesis and larval development in Lophelia pertusa, the most common framework-building cold-water scleractinian. Embryos developed in a more or less organized radial cleavage pattern from ∼160 µm large neutral or negatively buoyant eggs, to 120–270 µm long ciliated planulae. Embryogenesis was slow with cleavage occurring at intervals of 6–8 hours up to the 64-cell stage. Genetically characterized larvae were sexually derived, with maternal and paternal alleles present. Larvae were active swimmers (0.5 mm s−1) initially residing in the upper part of the water column, with bottom probing behavior starting 3–5 weeks after fertilization. Nematocysts had developed by day 30, coinciding with peak bottom-probing behavior, and possibly an indication that larvae are fully competent to settle at this time. Planulae survived for eight weeks under laboratory conditions, and preliminary results indicate that these planulae are planktotrophic. The late onset of competency and larval longevity suggests a high dispersal potential. Understanding larval biology and behavior is of paramount importance for biophysical modeling of larval dispersal, which forms the basis for predictions of connectivity among populations. |
format |
Text |
author |
Larsson, Ann I. Järnegren, Johanna Strömberg, Susanna M. Dahl, Mikael P. Lundälv, Tomas Brooke, Sandra |
author_facet |
Larsson, Ann I. Järnegren, Johanna Strömberg, Susanna M. Dahl, Mikael P. Lundälv, Tomas Brooke, Sandra |
author_sort |
Larsson, Ann I. |
title |
Embryogenesis and Larval Biology of the Cold-Water Coral Lophelia pertusa |
title_short |
Embryogenesis and Larval Biology of the Cold-Water Coral Lophelia pertusa |
title_full |
Embryogenesis and Larval Biology of the Cold-Water Coral Lophelia pertusa |
title_fullStr |
Embryogenesis and Larval Biology of the Cold-Water Coral Lophelia pertusa |
title_full_unstemmed |
Embryogenesis and Larval Biology of the Cold-Water Coral Lophelia pertusa |
title_sort |
embryogenesis and larval biology of the cold-water coral lophelia pertusa |
publisher |
Public Library of Science |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4100773 http://www.ncbi.nlm.nih.gov/pubmed/25028936 https://doi.org/10.1371/journal.pone.0102222 |
genre |
Lophelia pertusa North East Atlantic |
genre_facet |
Lophelia pertusa North East Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25028936 http://dx.doi.org/10.1371/journal.pone.0102222 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0102222 |
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PLoS ONE |
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9 |
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7 |
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e102222 |
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