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dc.contributor.authorLarsson, Ann I.
dc.contributor.authorJärnegren, Johanna
dc.contributor.authorStrömberg, Susanna M.
dc.contributor.authorDahl, Mikael P.
dc.contributor.authorLundälv, Tomas
dc.contributor.authorBrooke, Sandra
dc.coverage.spatialNorth East Atlanticen_US
dc.identifier.citationPLoS ONE 2014, 9(7)en_US
dc.description.abstractCold-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 mm large neutral or negatively buoyant eggs, to 120–270 mm 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 s21) 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.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleEmbryogenesis and Larval Biology of the Cold-WaterCoral Lophelia pertusaen_US
dc.typePeer revieweden_US
dc.typeJournal article
dc.rights.holder© 2014 The Authorsen_US
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.relation.projectEU: EC FP 7 project HERMIONEen_US
dc.relation.projectNorges forskningsråd: 204025en_US
dc.relation.projectAndre: VISTAen_US
dc.relation.projectAndre: Statoilen_US
dc.relation.projectAndre: FORMASen_US
dc.relation.projectAndre: Oscar and Lili Lamm foundationen_US

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