sea fan


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Related to sea fan: red coral

sea fan,

colonial marine animal forming erect, flattened, branching colonies in tropical and subtropical waters. Colonies may be several feet high and are often colorful, with purples, reds, and yellows predominating. The individuals, or polyps (see polyp and medusapolyp and medusa,
names for the two body forms, one nonmotile and one typically free swimming, found in the aquatic invertebrate phylum Cnidaria (the coelenterates). Some animals of this group are always polyps, some are always medusae, and some exhibit both a polyp and a medusa
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), have eight feathery tentacles and feed on plankton organisms. Sea fans are classified in the phylum CnidariaCnidaria
or Coelenterata
, phylum of invertebrate animals comprising the sea anemones, corals, jellyfish, and hydroids. Cnidarians are radially symmetrical (see symmetry, biological).
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, class Anthozoa, order Gorgonacea.

sea fan

[′sē ‚fan]
(geology)
(invertebrate zoology)
A form of horny coral that branches like a fan.
References in periodicals archive ?
Caption: Figure 5 Fluorescein angiogram showing peripheral sea fan formations.
Noting that paratypes of Bryaninops loki were listed by Larson (1985: 82) as collected from a sea fan at Lizard Island, Great Barrier Reef, we requested a loan and determined they are B.
Paul, "Chemical and structural defenses in the sea fan Gorgonia ventalina: effects against generalist and specialist predators," Coral Reefs, vol.
Anthropogenic stressors such as elevated temperatures, high sedimentation rates, or low water quality can compromise the immune response of sea fan colonies and make them more susceptible to pathogens or invasive organisms (Bruno et al.
Diversity and distribution of cold seep fauna associated with different geological and environmental settings at mud volcanoes and pockmarks of nil deep sea fan.
How it uses venom: Unlike other poisonous creatures, the sea fan doesn't inject venom into predators.
More than 50 yellowtail snappers--powder blue sprites, yellow striped, with deeply forked yellow tails--gather around me, then vanish into the rhythmic world of purple sea fans.
Peroxidase activity and inducibilily in the sea fan coral exposed to a fungal pathogen.
To make sure these spores were actually the ones causing the sea fan disease, Smith did a DNA analysis: He compared the DNA (the material that determines the unique genetic makeup of an organism) of the spores in the dust to the DNA of the sea fan aspergillus The result: a perfect match.
If one of my good friends were flashing the cash on an item for me, I think my request would currently be a sea fan.
The Irish Sea is also home to important species such as sharks, whales, dolphins and porpoise, as well as the rare and endangered pink sea fan.
Gorgonian corals, including the common sea fan Gorgonia ventalina Linnaeus, 1758, are prevalent on reefs across the Caribbean Sea (Kinzie, 1973; Opresko, 1973; Sanchez et al.