Hjøllo, Solfrid Sætre; Huse, Geir; Skogen, Morten; Melle, Webjørn (2014): An individual based model spatial distribution, production and biomass for Calanus finmarchicus in the Norwegian Sea [dataset]. Bjerknes Centre for Climate Research, PANGAEA, https://doi.org/10.1594/PANGAEA.834850, Supplement to: Hjøllo, SS et al. (2012): Modelling secondary production in the Norwegian Sea with a fully coupled physical/primary production/individual-based Calanus finmarchicus model system. Marine Biology Research, 8(5-6), 508-526, https://doi.org/10.1080/17451000.2011.642805
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
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.
The NetCDF file contains model grid coordinates and bottom topography.
Other version:
Project(s):
Basin Scale Analysis, Synthesis and Integration (EURO-BASIN)
Funding:
Seventh Framework Programme (FP7), grant/award no. 264933: Basin Scale Analysis, Synthesis and Integration
Coverage:
Latitude: 66.000000 * Longitude: 2.000000
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Julian day | Julian day | Hjøllo, Solfrid Sætre | |||
| 2 | Number of individuals | Ind No | # | Hjøllo, Solfrid Sætre | number of super-individuals at this time | |
| 3 | Number | No | Hjøllo, Solfrid Sætre | ID of super-individual | ||
| 4 | Stage | Stage | Hjøllo, Solfrid Sætre | |||
| 5 | Number | No | Hjøllo, Solfrid Sætre | number of individuals per grid cell | ||
| 6 | x | x | Hjøllo, Solfrid Sætre | x-position of the superindividual in the grid | ||
| 7 | y | y | Hjøllo, Solfrid Sætre | y-position of the superindividual in the grid | ||
| 8 | Carbon mass | C | mg | Hjøllo, Solfrid Sætre | Calculated | structural-weight of Calanus finmarchicus |
| 9 | Carbon mass | C | mg | Hjøllo, Solfrid Sætre | Calculated | fat-weight of Calanus finmarchicus |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1819773 data points
Download Data
View dataset as HTML (shows only first 2000 rows)