Ronny Kreuzberg, Spanien (Tauchen auf den Kanaren)
Info
Holothuria (Roweothuria) arguinensis is one of the "vacuum cleaners of the seas° , tirelessly taking in sand and extracting anything digestible from it, including detritus and also sea grasses such as Cymodosa nodosa and Zostera noltii.
The sea cucumber was formerly known as Holothuria (Roweothuria) arguinensis.
Sea cucumbers of the genus Holothuria can, under extreme stress conditions and at the moment of death, emit the toxin holothurin and Holotoxin, which can kill the entire fish population of an aquarium within a very short time.
The predators include various crustaceans, starfish and mollusks as well as humans, so Holothuria (Roweothuria) arguinensis is also heavily fished.
Synonym: Holothuria arguinensis Koehler & Vaney, 1906
Sea cucumbers of the family Holothuriidae possess, exceptions confirm the rule, so-called Cuvier's tubes (named after the French naturalist Georges Cuvier, * August 23, 1769 † May 13, 1832).
These are long, thin tubes that are located on the rectum of the echinoderms and are flung towards potential predators for defense.
These released tubes form a sticky, tough and stretchy network in which fish, crustaceans or other prey predators can become entangled.
The adhesives may also contain toxins (holothurin).
Sea cucumbers are the vacuum cleaners of the oceans, continuously cleaning the sea floors, so it may be useful for aquarists to keep one or more sea cucumbers in the aquarium to avoid detritus rich zones.
Problem:
Many sea cucumbers of the family Holothuriidae can release their venom into the aquarium water when they are in danger or dying, corals are mostly not harmed by the venom, but fish usually die.
Holothurins can cause severe, burning pain when in contact with the skin and irritation and even blindness when in contact with the eyes. When ingested systemically, the toxins can cause paralysis, muscle spasms, and discomfort in the digestive system, and in larger quantities, death by respiratory paralysis.
Since sea cucumbers are considered a delicacy in many Asian countries, the Cuvier's tubes containing the toxins must be removed before preparation or consumption.
The sea cucumber was formerly known as Holothuria (Roweothuria) arguinensis.
Sea cucumbers of the genus Holothuria can, under extreme stress conditions and at the moment of death, emit the toxin holothurin and Holotoxin, which can kill the entire fish population of an aquarium within a very short time.
The predators include various crustaceans, starfish and mollusks as well as humans, so Holothuria (Roweothuria) arguinensis is also heavily fished.
Synonym: Holothuria arguinensis Koehler & Vaney, 1906
Sea cucumbers of the family Holothuriidae possess, exceptions confirm the rule, so-called Cuvier's tubes (named after the French naturalist Georges Cuvier, * August 23, 1769 † May 13, 1832).
These are long, thin tubes that are located on the rectum of the echinoderms and are flung towards potential predators for defense.
These released tubes form a sticky, tough and stretchy network in which fish, crustaceans or other prey predators can become entangled.
The adhesives may also contain toxins (holothurin).
Sea cucumbers are the vacuum cleaners of the oceans, continuously cleaning the sea floors, so it may be useful for aquarists to keep one or more sea cucumbers in the aquarium to avoid detritus rich zones.
Problem:
Many sea cucumbers of the family Holothuriidae can release their venom into the aquarium water when they are in danger or dying, corals are mostly not harmed by the venom, but fish usually die.
Holothurins can cause severe, burning pain when in contact with the skin and irritation and even blindness when in contact with the eyes. When ingested systemically, the toxins can cause paralysis, muscle spasms, and discomfort in the digestive system, and in larger quantities, death by respiratory paralysis.
Since sea cucumbers are considered a delicacy in many Asian countries, the Cuvier's tubes containing the toxins must be removed before preparation or consumption.
