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Paraulopus nigripinnis, the cucumber fish, ‘’‘Montague whiting’’’ is a grinner of the genus Paraulopus. It is a deep water fish found around southern Australia and New Zealand on the continental shelf at depths between 65 and 600 m. [1] Their length is between 15 and 20 cm. They were first described by Günther in 1878.
Astichopus multifidus is a robust, soft-bodied species growing to a maximum length of 40 cm (16 in) and width of 10 cm (4 in). Both its dorsal and ventral surfaces are uniformly covered with hundreds of tube feet, those on the dorsal surface being extended into papillae, fleshy conical projections about 1 cm (0.4 in) long with tube feet at their tips.
This is thought to help the animals move to new feeding grounds and avoid predators. [6] The sea cucumber ranges in size from 11 to 25 centimeters (4.3 to 9.8 in). [7] Its most distinct feature is its coloring, which is dictated by size: small enypniastes are a bright pink, and larger individuals are a more reddish-brown color.
Aquaculture means the sea cucumbers are farmed in contained areas where they can be cultured in a controlled manner. In China, sea cucumbers are cultured, along with prawns and some fish species, in integrated multi-trophic systems. In these systems, the sea cucumbers feed on the waste and feces from the other species.
In a commensal arrangement, Parastichopus regalis is often host to the pearlfish Carapus acus, which enters the sea cucumber's respiratory tree via its anus. The fish lives inside the sea cucumber during the day, emerging into the open water at night to feed. Two fish may occupy a single host, and a pair have been known to breed inside their ...
It is monotypic, being represented by the single species Australostichopus mollis, [2] commonly known as the brown sea cucumber or Australasian sea cucumber. [3] This species has stimulated interest for its fishery potential in the Southern Hemisphere, [ 4 ] and for its capability to reduce waste produced by aquaculture .
Synapta maculata, the snake sea cucumber, is a species of sea cucumber in the family Synaptidae. It is found in shallow waters in the tropical Indo-Pacific Ocean. Sometimes growing as long as 3 m (10 ft), it is one of the longest sea cucumbers in the world.
Stichopus herrmanni, or Herrmann's sea cucumber, [3] is a species of holothuroidean echinoderm in the family Stichopodidae. It is found in the tropical, western Indo-Pacific Ocean, at depths down to 20 m (66 ft). [2] This and several other species are known as curryfish and are harvested commercially; it is called gama in Indonesia. [4]