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Brief Summary ( anglais )

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Great spider crabs look like long-legged spider crabs but are much larger. They are fairly rare in the North Sea. Sometimes they get caught in fishing nets, which is an unusual experience for the fishermen. The crab is dependent upon a disguise since it can't run fast. Young great spider crabs cover their back with torn-off pieces of seaweed. Older animals use barnacles, seaweed or polyps. Should an enemy find the crab despite its disguise, its living disguise sometimes helps to defend the animal.
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Great spider crab ( anglais )

fourni par wikipedia EN

The great spider crab, Hyas araneus, is a species of crab found in northeast Atlantic waters and the North Sea, usually below the tidal zone.[1]

In 1986, two specimens were captured at the South Shetland Islands off the Antarctic Peninsula, apparently transported by human agency.[2] It has been feared that the species would have an adverse effect on the native fauna, but there have been no further captures from the region since the 1986 specimens.[3]

The great spider crab can moult and get rid of their outer shell/skin. This can take some time but it lets them grow to great size. After they moult they are very vulnerable to predators because of a very soft exoskeleton.

References

  1. ^ Kåre Telnes (17 November 2021). "Great spider crab". The Marine Fauna Gallery of Norway. Archived from the original on 2007-09-28.
  2. ^ Marcos Tavares & Gustavo A. D. de Melo (2004). "Discovery of the first known benthic invasive species in the Southern Ocean: the North Atlantic spider crab Hyas araneus found in the Antarctic Peninsula". Antarctic Science. 16 (2): 129–131. Bibcode:2004AntSc..16..129T. doi:10.1017/S0954102004001877. S2CID 86753556.
  3. ^ H.J. Griffiths; R.J. Whittle; S.J. Roberts; M. Belchier; K. Linse (2013). "Antarctic Crabs: Invasive or Endurance?". PLOS ONE. 8 (7): e66981. Bibcode:2013PLoSO...866981G. doi:10.1371/journal.pone.0066981. PMC 3700924. PMID 23843974.
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Great spider crab: Brief Summary ( anglais )

fourni par wikipedia EN

The great spider crab, Hyas araneus, is a species of crab found in northeast Atlantic waters and the North Sea, usually below the tidal zone.

In 1986, two specimens were captured at the South Shetland Islands off the Antarctic Peninsula, apparently transported by human agency. It has been feared that the species would have an adverse effect on the native fauna, but there have been no further captures from the region since the 1986 specimens.

The great spider crab can moult and get rid of their outer shell/skin. This can take some time but it lets them grow to great size. After they moult they are very vulnerable to predators because of a very soft exoskeleton.

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Distribution ( anglais )

fourni par World Register of Marine Species
Labrador to Rhode Island

Référence

North-West Atlantic Ocean species (NWARMS)

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Kennedy, Mary [email]

Habitat ( anglais )

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intertidal, infralittoral and circalittoral of the Gulf and estuary

Référence

North-West Atlantic Ocean species (NWARMS)

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cc-by-4.0
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WoRMS Editorial Board
contributeur
Kennedy, Mary [email]