On feeding of Pholoe minuta (Fabricus, 1780) (Polychaeta:Sigalioinidae)

Abstract

The food composition of Pholoe minuta, an infaunal polychaete, is described. Aquarium observations and analyses of gut contents and faeces show that the species is carnivorous. Most common prey organisms in the areas investigated are ‘sedentary’ polychaetes, in particular Prionospio sp., and small crustaceans. These are encountered whilst P. minuta moves through the sediment, and are attacked by eversion of the jaw-armed proboscis. The prey organisms are either swallowed whole or in part. A comparison of the food choice of two different size-classes is made. The food choice in a polluted area is also described.