Great spider crab
| Great spider crab | |
|---|---|
 | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Infraorder: | Brachyura |
| Family: | Oregoniidae |
| Genus: | Hyas |
| Species: | H. araneus |
| Binomial name | |
| Hyas araneus (Linnaeus, 1758) | |
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. The spider crab will pull is self of its outer layer. 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
- ↑ Kåre Telnes. "Great spider crab". The Marine Fauna Gallery of Norway. Retrieved 2007-06-28.
- ↑ 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. doi:10.1017/S0954102004001877.
- ↑ H.J. Griffiths; R.J. Whittle; S.J. Roberts; M. Belchier; K. Linse (2013). "Antarctic Crabs: Invasive or Endurance?". PLOS ONE. doi:10.1371/journal.pone.0066981.
This article is issued from Wikipedia - version of the 7/2/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.