Sea Anemone
Related Category: Zoology: Invertebrates
(nm´n´´), any of the relatively large, predominantly solitary polyps (see polyp and medusa) of the class Anthozoa, phylum Cnidaria.
Sea Anemone Range
Fast Facts
Type: Invertebrate Diet: Carnivore Size: Diameter, 0.5 in to 6 ft (1.25 cm to 1.8 m) Did you know? Some species of sea anemone can live 50 years or more. Size relative to a tea cup: ...
Attachment: The sea anemone has a foot which in most species attaches itself to rocks or anchors in the sand. Some species attach to kelp and others are free-swimming.
Corals and sea anemones are related to jellyfish. They live fixed to the seabed instead of swimming free.
Starlet sea anemone (Nematostella vectensis)
This greyish-white anemone has a bulbous central section with a contracting column that enables it to burrow into soft mud. At the top of... More 5 Images 0 videos ...
Sea anemones are brightly coloured, soft-bodied animals which are found in both shallow and deep waters. They are quite common in the intertidal zone where they live attached to rocks or shells.
and sea anemones
Habitat: Worldwide in all of earth's oceans
Learn about more animals ...
Includes jellyfish, sea anemones, & corals
QUESTIONS
Can't find the answer to your animal question here?
Send your question to the SeaWorld/Busch Gardens animal experts at shamu@seaworld.org.
Flowers of the Sea Sea anemone are invertebrates like starfish and sea urchins. There are about 1,000 species. They can be found at depths of up to 30,000 feet. They are found in all the world's oceans.
These inshore reef dwellers have developed a curious and potentially deadly relationship with the sea anemone.
Breeding ...
delicate sea anemone (Heteractis malu)
derasa clam (Tridacna derasa)
elegance coral (Catalaphyllia jardinei)
elephant ear mushroom (Rhodactis sp)
encrusting gorgonian (Cladiella sp.)
feather duster (Sabella penicillus) ...
Both anemonefish and sea anemones can survive—apparently quite well—when separated from one another.
: The green surf anemone, also called the giant green Pacific sea anemone, is not a plant, it's an active predator. It can grow up to 30 cm in diameter and its column can reach as tall as 30 cm. The color of the column is olive green.
The Phylum Cnidaria includes such diverse forms as jellyfish, hydra, sea anemones, and corals. Cnidarians are radially or biradially symmetric, a general type of symmetry believed primitive for eumetazoans.
However, there are shore crabs, hermit crabs, and sea anemones, and lots of small chitons in depressions in the sandstone rocks. I once observed a small, brightly colored fish in a tide pool at this location.
sea anemones
hydras
Cnidaria - Phylum Cnidaria.
Cnidarians (Phylum Cnidaria) are a group of aquatic animals that includes jellyfish, corals, sea anemones, and hydras.
Among the other phyla, the Ctenophora and the Cnidaria, which includes sea anemones, corals, and jellyfish, are radially symmetric and have digestive chambers with a single opening, which serves as both the mouth and the anus.
Clown fish inhabit a single sea anemone in groups that include the breeding male and female and a number of younger male clown fish. All clown fish are born male and develop female reproductive organs when needed.
Cnidarians, whose best-known representatives include jellyfish, corals, and sea anemones are characterized by one thrilling trait: they possess stinging cells called cnida (Greek for stinging nettle), from which the phylum takes its name.
Down in the narrows of the canyon floor strong tidal currents nourish lush "gardens" of burrowing sea anemones.
One of the best known is between the clownfish (a kind of damsel fish) and the sea anemone. They work together to share food and avoid predators. As juveniles, clownfish incorporate the anemone's mucus into their own by 'rubbing' its tentacles.
Marine invertebrates are a large group, including corals, sea anemones, sponges, sea fans, sea stars, sea urchins and cunjevoi, as well as many crustaceans, molluscs and worms.
More about Marine invertebrates ...
Reefs are built by vast colonies of coral polyps - tiny invertebrate animals related to sea anemones and jellyfishes. Reef-building corals secrete calcium carbonate skeletons. The calcium carbonate gradually accumulates and the reef becomes large.
Larger marine animals including octopuses, giant groupers, and some sea anemones.
Habitat
Commonly found on coral reefs in the western Atlantic ocean, they range from Brazil to northeastern United States.
However, most species feed on coral polyps (corallivores) and sea anemones; this poses a problem in most reef tanks where a delicate balance is to be maintained.
Corals are carnivorous marine organisms with stinging cells and tentacles. They are related to jellyfish and sea anemones. The term coral is also applied to their skeletons, which can be organic (soft) or composed of minerals (hard).
Marine ecosystems are homes to protozoans, marine invertebrates (echinoderms, mollusks, segmented and non-segmented worms, jellies, coral, sea anemones, hyroids) marine vertebrates (fishes, birds, mammals), and plankton (phyto and zooplankton).
Invertebrates are creatures that do not have a backbone. In Antarctic waters there are large quantities of squid, cuttlefish, octopus, marine snails, limpets, sponges, sea stars, sea squirts, sea anemones, sea urchins, jellyfish and many others.
It has numerous predators, including birds such as the American oystercatcher, ocean dwellers such as sea anemones, sea stars, sea nettles, some parasites, and humans. About seven weeks after hatching, the eastern oyster reaches sexual maturity.
The major invertebrate phyla are porifera (sponges), platyhelminthes (flatworms), nematoda (round worms), annelida (earthworms, marine worms and leeches), cnidaria (jellyfish, coral and sea anemones), mollusca (octopus, nautilus, squid, slugs, ...
 See also: Coral, Jellyfish, Shell, Snail, Sponge
|
