Range Description. This species occurs in the Mediterranean and surrounding Atlantic waters, from Algeria, Croatia, France, Gibraltar, Italy, Montenegro. Maximum size: 25 cm (Ref. ); approximately 30 cm. maximum width: 6 cm. Average weight: g (Ref. ). Body: with more or less round cross section;. PDF | The Atlanto-Mediterranean holothurian Holothuria tubulosa is among the conspicuous benthic invertebrates in the shallow sublittoral.
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Holothuria tubulosa is found in temperate regions of holtohuria eastern Atlantic Ocean as far north as the Bay of Biscayin the Mediterranean Seawhere it is abundant. It has a fringe of short, flattened tentacles around the mouth at the anterior end and an anus at the posterior end. Holothuria tubulosa Gmelin, The animal sorts and introduces the edible organic substances, and rejects the elements not metabolize, particularly sand, in the form of lengthened excrements Ref.
Next, a smaller number of individuals, believed to be female, emitted a more viscous fluid, perhaps in response to the release of the male gametes.
WoRMS – World Register of Marine Species – Holothuria tubulosa Gmelin,
Summary [ edit ] Description Holothuria tubulosa Gmelin, 1. The following other wikis use this file: Description Holothuria tubulosa Gmelin, 1.
World Register of Marine Species. Holothuria tubulosathe cotton-spinner or tubular sea holohhuriais a species of sea cucumber in the family Holothuriidae. Variable coloring of the red with nuance of brown which some time draws on the purple one. Sign our Guest Book.
File:Holothuria tubulosa Lefkada09 7769.JPG
They feed on microscopic algae and pass through several stages over the course of a few weeks before settling on the seabed and undergoing metamorphosis into juveniles. International Holorhuria for Conservation of Nature.
Retrieved from ” https: This page was last edited on 30 Aprilat First, some individuals, believed to be males, emitted a whitish fluid which gradually dispersed in the surrounding water. In a study in the Mediterranean Sea, a mass spawning event was observed in the afternoons of the two days in August that coincided with the full moon. Holothuria tubulosa feeds on detritus, algae and plankton. Captured with the hand, with dredgers and trawls basic, and probably used like food in some countries.
Holothuria tubulosa is dioeciouswith each individual being either male or female but with no difference between them in external appearance. Large numbers of mature individuals simultaneously adopted the spawning position, rearing their anterior ends up and leaving only holtohuria hind third of their body in contact with the seabed.
Holothuria tubulosa, tubular sea cucumber : fisheries
It is roughly cylindrical with a flattened base on which there are three longitudinal rows of tube feet. In some countries this may not be legally possible; if so: Probably one of the species which Turkey exports in Japan Ref.
This image appeared on Wikipedia’s Main Page in the Did you know? There is a commercial fishery in Turkey and a closed season is imposed in August and September to allow the animals to spawn.
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File:Holothuria tubulosa Gmelin, 1790 1.jpg
The following pages on the English Wikipedia link to this file pages on other projects are not listed:. Present at all depths, the species is very common, even locally very abundant, but does not seem not represented in the sectors western and southern of the basin.
Each release lasted about 30 minutes. From Wikipedia, the free encyclopedia. From Wikimedia Commons, the free media repository.
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Holothuria tubulosa grows to a length of between 20 centimetres 7. Occurs at the low tide mark. Sandy rich person funds muddy out of organic remains, or on hard substrates forks and spoons of plants.
The general colour is a holothurla of brown and the surface is covered with numerous dark-coloured, conical, thorn-like projections known as papillae. The sea cucumbers are either sun dried, oven dried, or frozen before being exported. Eviscerate easily when it is disturbed Ref. It is said that it moves at the speed of yolothuria meter every 10 minutes.