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Tubastraea are considered one of the easier non photosynthetic corals to keep in captivity. Their polyps will take relatively large foods such as fish flakes and frozen mysis shrimp; feeding all the polyps once every other day is sufficient for survival, though faster growth is obtained if they are fed daily.
Tubastraea faulkneri is an encrusting coral that can become massive and strongly convex. The corallites of this species are covered with a porous tissue ( coenosteum ) with a vermicular appearance. The calices have a diameter of 8–10 mm (0.31–0.39 in) and a depth of 5–8 mm (0.20–0.31 in).
Coral Growth in Cabbage Tree Bay, NSW. Corals might evade ocean warming by migrating into what had been cooler waters. [2] The planktonic larvae of the corals could colonise suitable new areas, but for corals in places like the Great Barrier Reef; the required migration rate is about 15 km per year, which is much faster than corals can grow. [2]
Dendrophyllia is a genus of stony cup corals in the family Dendrophylliidae. Members of this genus are found at depths down to about 900 metres (3,000 ft). They are azooxanthellate corals, meaning that they do not contain symbiotic photosynthetic dinoflagellates as do many species of coral. [1]
The classification of corals has been discussed for millennia, owing to having similarities to both plants and animals. Aristotle's pupil Theophrastus described the red coral, korallion, in his book on stones, implying it was a mineral, but he described it as a deep-sea plant in his Enquiries on Plants, where he also mentions large stony plants that reveal bright flowers when under water in ...
Non-reef-forming or ahermatypic corals, which mostly do not contain zooxanthellae; In reef-forming corals, the endodermal cells are usually replete with symbiotic unicellular dinoflagellates known as zooxanthellae. There are sometimes as many as five million cells of these per 1 square centimetre (0.16 sq in) of coral tissue.
Research suggests that while surface-dwelling coral use color to help block sunlight, their deep-sea cousins may actually use color differently. Scientists may finally know why these magnificent ...
Unlike stony corals, most soft corals thrive in nutrient-rich waters with less intense light. Almost all use symbiotic photosynthetic zooxanthella as a major energy source. However, most readily eat any free-floating food, such as zooplankton, out of the water column.
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