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Marine Biodiversity, 2021
Despite being crucial for habitat provision and being able to inhabit most oceans and all depths, documentation of threats affecting antipatharian corals (known as black corals) is very limited. We provide the second report of sea anemones in the genus Nemanthus overgrowing antipatharian corals causing the death of either entire colonies or sections of
Erika Gress, Muslimin Kaimuddin
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Despite being crucial for habitat provision and being able to inhabit most oceans and all depths, documentation of threats affecting antipatharian corals (known as black corals) is very limited. We provide the second report of sea anemones in the genus Nemanthus overgrowing antipatharian corals causing the death of either entire colonies or sections of
Erika Gress, Muslimin Kaimuddin
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The Biology and Ecology of Black Corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia)
Advances in Marine Biology, 2012Antipatharians, commonly known as black corals, are treasured by many cultures for medicinal purposes and to produce jewellery. Despite their economic and cultural importance, very little is known about the basic biology and ecology of black corals because most species inhabit deeper-water environments (>50m) which are logistically challenging to study.
Daniel Wagner, Robert J Toonen
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Electrophysiology of two parallel conducting systems in the colonial Hexacorallia
Proceedings of the Royal Society of London. Series B. Biological Sciences, 1976Extracellular polythene suction electrodes have been used to record electrical activity in four species of Madreporaria -Dendrogyra cylindrus, Meandrina meandrites, Mussa angulosaandEusmilia fastigiata. A colonial conduction system, believed to be the nerve net, was found in all species. It conducted without decrement between all polyps.
I. D. McFarlane, G. A. B. Shelton
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Morphology, distribution, and evolution of apical structure of nematocysts in hexacorallia
Journal of Morphology, 2011AbstractCnidae are complex intracellular capsules made by all cnidarians. The most diverse of these capsules are nematocysts, which are made by all members of the phylum; spirocysts and ptychocysts are made only by members of some lineages, and they show less functional and structural diversity.
Marymegan Daly, Abigail J. Reft
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The reproductive biology of Parazoanthus parasiticus (Hexacorallia: Zoanthidea) in Bermuda
Hydrobiologia, 2004The zooxanthellate macrocnemic zoanthid Parazoanthus parasiticus lives at densities of 3–10 cm−2 in the chimney sponge Callyspongia vaginalis in Bermuda. It is gonochoric and oviparous. Small oocytes appear in the mesenteries in February–March, grow slowly at first, then increase volume rapidly as seawater temperature passes 27 °C in July.
DÖrte Westphalen, John S. Ryland
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Reproduction in Zoanthidea (Anthozoa: Hexacorallia)
Invertebrate Reproduction & Development, 1997Summary The state of knowledge concerning the reproductive biology of zoanthids is reviewed. Colonies in the suborder Macrocnemina, with few exceptions, are gonochoric; those in Brachycnemina are probably basically hermaphroditic but accurate sampling in colonies that fragment is difficult and exceptions by species or populations occur.
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Colonial behaviour and electrical activity in the Hexacorallia
Proceedings of the Royal Society of London. Series B. Biological Sciences, 1975The behaviour of the polyps of eight coral species in the subclass Hexacorallia is described with reference to electrical activity recorded with extracellular suction electrodes. Following repetitive mechanical or electrical stimulation, waves of polyp retraction spread over the colony from the point of stimulation. In response to a single
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L31 Transposons of Hexacorallia: Distribution, Diversity, and Evolution
Russian Journal of GeneticsTransposable elements (TE) of eukaryotes – retrotransposons and DNA transposons – are nucleotide sequences that can move from locus to locus of the genome, as well as between the genomes of different organisms. L31 DNA transposons are an ancient and diverse group belonging to the large IS630/Tc1/mariner group. L31 transposons are not widespread and are
L. V. Puzakova +2 more
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Molecular Evidence Suggesting Interspecific Hybridization in Zoanthus spp. (Anthozoa: Hexacorallia) [PDF]
Zoological Science, 2007 Interspecific hybridization has been proposed as a possible explanation for the incredible diversity seen in reef-dwelling corals, but until now little proof of such hybridization in other reef-dwelling anthozoans has been reported. Without further observation of hybridization, the question of such a phenomenon being widespread in Anthozoa remains ...
James Davis Reimer +4 more
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