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Some gorgonians contain algae, or zooxanthellae. This symbiotic relationship assists in giving the gorgonian nutrition by photosynthesis. Gorgonians possessing zooxanthellae are usually characterized by brownish polyps. Gorgonians are found primarily in shallow waters, though some have been found at depths of several thousand feet.
Red sea fingers is similar in shape to Alcyonium digitatum but is usually blood red or rust coloured. The finger-shaped lobes are slender and can be up to thirty centimetres long. The polyps are white and each one has eight pinnate tentacles which give the colony a feathery appearance when they are extended. [2]
There are around 400,000 grey seals worldwide, with about 120,000 living off the coast of Britain. ‘Seal finger’ warning over infection if bitten by sea mammal Skip to main content
Seal finger, also known as sealer's finger and spekkfinger (from the Norwegian for "blubber"), [2] is an infection that afflicts the fingers of seal hunters and other people who handle seals, as a result of bites or contact with exposed seal bones; [citation needed] it has also been contracted by exposure to untreated seal pelts.
The wide-mesh sea fan (Gorgonia mariae) is also similar in appearance, but at only 30 centimetres (11.8 in), is smaller, and many of the branchlets do not interconnect. [4] The Venus sea fan is white, yellowish, or pale lavender. The fan is often found oriented perpendicular to the incoming waves and can grow to a height of 1.5 m (4 ft 11 in).
Briareum asbestinum, commonly known as the corky sea finger, is a species of a soft coral in the family Briareidae. [1] It inhabits coral reefs and rocky bottoms in the Caribbean, Bahamas, and Florida, often growing to 30 cm at depths of one to 40 metres.
Leptogorgia virgulata is a colonial coral averaging about 20 cm (8 in) in height, usually between 15 and 60 cm as an adult, but sometimes reaching 1 metre (3.3 ft). It does not have the rigid calcium carbonate skeleton possessed by the true corals but its stalks have an internal, axial skeleton which is stiffened by sclerites and covered by an outer layer, the coenenchyme.
The dugong (/ ˈ d (j) uː ɡ ɒ ŋ /; Dugong dugon) is a marine mammal.It is one of four living species of the order Sirenia, which also includes three species of manatees.It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century.