What is the common name of Asterias?
Common starfish
Common starfish (Asterias rubens)
What eats Asterias rubens?
Asterias rubens preys upon a wide range of living organisms and carrion that include molluscs, polychaete worms and other echinoderms. Occasionally, small crustaceans are caught on the suction discs of the tube feet.
Where do white finger starfish live?
Distribution. The common starfish is native to the northeastern Atlantic Ocean and its range extends from Norway and Sweden, through the North Sea, round the coasts of Britain, France, Spain and Portugal and southwards along the coasts of Africa to Senegal. It is largely absent from the Mediterranean Sea.
Is Asterias a starfish?
Asterias is a genus of the Asteriidae family of sea stars. It includes several of the best-known species of sea stars, including the (Atlantic) common starfish, Asterias rubens, and the northern Pacific seastar, Asterias amurensis….
| Asterias | |
|---|---|
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Asteroidea |
| Order: | Forcipulatida |
Where do Asterias live?
Asterias forbesi are commonly found in intertidal areas and shallow waters of the Atlantic Ocean on the North American Coast from the Gulf of Maine to the Gulf of Mexico (Dale, 2000; Pfeffer, 1989).
What is the class of Asterias rubens?
StarfishCommon starfish / Class
What is main respiratory organ of Asterias?
The respiratory organs of Asterias are gills or papulae and tube feet. The papulae are the chief respiratory organs. They are simple, contractile, transparent, hollow outgrowths of body wall on the aboral surface having ciliated epithelium at outer and inner surfaces.
What is the main excretory matter of Asterias?
The main nitrogenous waste product is ammonia. Starfish have no distinct excretory organs; waste ammonia is removed by diffusion through the tube feet and papulae. The body fluid contains phagocytic cells called coelomocytes, which are also found within the hemal and water vascular systems.