System Model (Systmod) for the Norwegian Sea and the Barents Sea

摘要: The significance of stock interactions and climate change for the ecological balance in Barents Sea was visualised mid-1980’s when an acute deficit prey species led to mass death among predators. crisis occurred after a long period overfishing stocks herring capelin, triggered by climatic favourable recruitment conditions cod. However, too small exploit possibilities, while cod became large relation its food supply. Given lack juvenile reduced capelin stock, rapidly growing grazed down all other available area, including own progeny, starved cod, seabirds seals appeared on north Norwegian coast. fishery collapsed, traditional coastal fisheries were struck most serious record. evolution 1980’s is background development “Systmod” system model Seas’ (Hamre et al. 1993). developed co-operation between Institute Marine Research (IMR) Norsk Regnesentral (Norwegian Computing Center). So far it includes herring,