Responses ofAsterias Rubensto Olfactory Stimuli

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Abstract
In 1883 Romanes first demonstrated the capacity of starfish to detect the presence of food. He claimed to be able to lead them in any direction by holding a piece of crab an inch or two from the end of one of the arms. He concluded that if the food was not more than a few inches away the starfish could smell it and move towards it. Milligan (1915 a-c) observed that Asterias rubens moved towards a dead pipefish from distances of 1½ in to 2 ft., and emphasized that the determined movement left no doubt that the starfish could smell the fish. Regnart (1928) found that A. rubens could locate food hidden in a bait chamber, moving away from the aerator in the centre of the tank.

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