Octocorallia - Animalia
WEBOctocorallia (also known as Alcyonaria ) is a class of Anthozoa comprising over 3,000 species of marine organisms formed of colonial polyps with 8-fold symmetry. It includes the blue coral, soft corals, sea pens, and gorgonians (sea fans and sea whips) within three orders: Alcyonacea, Helioporacea, and Pennatulacea.
WEBOctocorallia (also known as octocorals, or in earlier times “Alcyonaria”) are a subclass of the class Anthozoa, in the phylum Cnidaria. They are sessile polyp-bearing animals with a mobile larval phase that are only found in marine systems.
Evolution of bioluminescence in Anthozoa with emphasis on …
WEBWithin Octocorallia, bioluminescence is prevalent across both shallow and deep habitats and appears most abundant between depths of approximately 500–2000 m (figure 2; electronic supplementary material, figure S2). An additional deep (abundance) maximum exists around approximately 3300 m. Figure 2.
Global habitat suitability of cold-water octocorals - Wiley Online …
WEB3 feb. 2012 · Here, we present global habitat suitability models and distribution maps for seven suborders of Octocorallia: Alcyoniina, Calcaxonia, Holaxonia, Scleraxonia, Sessiliflorae, Stolonifera and Subselliflorae.
WEB22 mei 2010 · Found in all marine environments, octocorals are most diverse and conspicuous on shallow tropical reefs and in deep-sea habitats, where they are often dominant space-occupiers and important structural components of the community.
WEB29 jul. 2011 · The thin tissue of sea pens is called the coenenchyme, and as in all octocorals, is composed of three layers: the outer epidermis and an inner gastrodermis, with a mesogleal layer in the middle. The mesoglea …
WEB26 okt. 2018 · This species of octocoral, commonly called the ‘blue coral’ due to its distinctive blue fibrous aragonite skeleton, is unique among the Octocorallia because it is hermatypic.
WEBAlthough commonly called "soft corals," the Octocorallia are not close relatives of the Scleractinia , or "true corals" living today. Unlike true corals, which have hexaradial symmetry, octocorals have eightfold radial …
Diversity and Distribution of Octocorallia | SpringerLink
WEB8 sep. 2016 · Octocorals are distributed in all marine environments , but are generally conspicuous and diverse in shallow tropical reefs and in deep-sea habitats (e.g. seamounts), where they are important structural components of the community (Williams and Cairns 2013 ).
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