chapter  13
16 Pages

The Crustacean Nephrops norvegicus: Growth and Reproductive Behaviour

WithC.J. Smith, K.N. Papadopoulou

Nephrops is a non-migratory burrowing species with juveniles and adults living within the sediment in often complex burrow structures. Nephrops norvegicus known as Norway lobster, scampi, langoustine and Dublin Bay prawn, is a malacostracan decapod crustacean within the Family Nephropidae, which also includes clawed lobsters of the genus Homarus. Emergence is probably regulated by both endogenous activity rhythms and exogenous mechanisms such as light and availability of prey species. The Nephrops resource has a high social and economic relevance with more than 30 individual stocks regularly assessed by International Council for the Exploration of the Sea in the northeastern Atlantic. The reproduction of Nephrops has been studied throughout its geographical range using both field and experiment approaches. Multiple mating and multiple paternity in wild Nephrops stocks off the west coast of Portugal were recently shown to occur via DNA analyses.