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Anthozoans are exclusively marine, and include sea anemones, stony corals, soft corals, sea pens, sea fans and sea pansies. Anthozoa is the largest taxon of cnidarians; over six thousand solitary and colonial species have been described. They range in size from small individuals less than half a centimetre across to large colonies a metre or ...
Corals reproduce both sexually and asexually. An individual polyp uses both reproductive modes within its lifetime. Corals reproduce sexually by either internal or external fertilization. The reproductive cells are found on the mesenteries, membranes that radiate inward from the layer of tissue that lines the stomach cavity. Some mature adult ...
Callogorgia is a genus of deep sea corals that are ideally suited to be habitats for different organisms. They reproduce both sexually and asexually, clinging to the hard substrate of the ocean during their maturation process. Callogorgia are found at depths ranging from 750-8200 feet in the Gulf of Mexico, Pacific Ocean and the Caribbean Sea.
Many soft corals are easily collected in the wild for the reef aquarium hobby, as small cuttings are less prone to infection or damage during shipping than stony corals. Nevertheless, home-grown specimens tend to be more adaptable to aquarium life and help conserve wild reefs.
As observed in other species of corals, space for settlement on the reef is one of the most important limiting factors for new colonies of L. arboreum. [5] Similarly, physical factors—such as wave action, temperature variation, salinity and light– and biological factors– such as competition, predation, and disease– limit the success and ...
Primnoidae also lack the typical calcium carbonate skeleton that many shallow water corals possess, and many species of soft coral have no hard structural support at all. Other soft corals, such as those responsible for building seafloor habitats like Primnoa pacifica, contain a calcite and gorgonian skeletal structure, more flexible than ...
However, P. cylindrica relies primarily on asexual reproduction through fragmentation, with new corals growing and developing from pieces of coral broken off from a "parent" coral. Once settled on hard substrate, the polyps making up the broken coral grow and develop naturally and eventually mature into a coral colony that is genetically ...
Scleractinia, also called stony corals or hard corals, are marine animals in the phylum Cnidaria that build themselves a hard skeleton. The individual animals are known as polyps and have a cylindrical body crowned by an oral disc in which a mouth is fringed with tentacles. Although some species are solitary, most are colonial.