气候变化领域集成服务门户(CCPortal): An individual based model spatial distribution, production and biomass for Calanus finmarchicus in the Norwegian Sea

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.834850
	An individual based model spatial distribution, production and biomass for Calanus finmarchicus in the Norwegian Sea
	Hjøllo; Solfrid Sætre; Huse; Geir; Skogen; Morten; Melle; Webjørn
发布日期	2014-08-12
数据集类型	dataset
英文简介	The copepod Calanus finmarchicus is the dominant species of the meso-zooplankton in the Norwegian Sea, and constitutes an important link between the phytoplankton and the higher trophic levels in the Norwegian Sea food chain. An individualbased model for C. finmarchicus, based on super-individuals and evolving traits for behaviour, stages, etc., is two-way coupled to the NORWegian ECOlogical Model system (NORWECOM). One year of modelled C. finmarchicus spatial distribution, production and biomass are found to represent observations reasonably well. High C. finmarchicus abundance is found along the Norwegian shelf-break in the early summer, while the overwintering population is found along the slope and in the deeper Norwegian Sea basins. The timing of the spring bloom is generally later than in the observations. Annual Norwegian Sea production is found to be 29 million tonnes of carbon and a production to biomass (P/B) ratio of 4.3 emerges. Sensitivity tests show that the modelling system is robust to initial values of behavioural traits and with regards to the number of super-individuals simulated given that this is above about 50,000 individuals. Experiments with the model system indicate that it provides a valuable tool for studies of ecosystem responses to causative forces such as prey density or overwintering population size. For example, introducing C. finmarchicus food limitations reduces the stock dramatically, but on the other hand, a reduced stock may rebuild in one year under normal conditions.
空间范围	Latitude: 66.000000 * Longitude: 2.000000
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/217364
推荐引用方式 GB/T 7714	Hjøllo,Solfrid Sætre,Huse,et al. An individual based model spatial distribution, production and biomass for Calanus finmarchicus in the Norwegian Sea.2014-08-12.https://doi.org/10.1594/PANGAEA.834850.