title: Modeling filtration of dispersed crude oil droplets by the copepod Calanus finmarchicus.
abstract: Oil droplets may form and disperse in the water column after an accidental spill of crude oil or petroleum products at sea. Micro-sized oil droplets may be available for filter feeding organisms, such as the copepod Calanus finmarchicus, which has been shown to filter oil droplets. In the present paper, a modeling approach was used to estimate potential ingestion amounts by copepod filtration of oil droplets. The new model was implemented in the OSCAR (Oil Spill Contingency and Response) software suite, and tested for a series of oil spill scenarios and key parameters. Among these, the size of the filtered droplets was found to be the most important factor influencing the model results. Given the assumptions and simplifications of the model, filtration of dispersed crude oil by C. finmarchicus was predicted to affect the fate of 1-40% of the total released oil mass, depending on the release scenario and parameter values used, with the lower end of that range being more probable in an actual spill situation.
authors: SINTEF Materials and Chemistry, Environmental Technology, 7465 Trondheim, Norway. Electronic address: raymond.nepstad@sintef.no.
authors: Raymond
authors: R
authors: Nepstad
authors: Norwegian University of Science and Technology (NTNU), Department of Biology, Faculty of Natural Science and Technology, NTNU Sealab, Brattørkaia 17C, 7010 Trondheim, Norway.
authors: Ingvild Fladvad
authors: IF
authors: Størdal
authors: SINTEF Materials and Chemistry, Environmental Technology, 7465 Trondheim, Norway.
authors: Ute
authors: U
authors: Brönner
authors: SINTEF Materials and Chemistry, Environmental Technology, 7465 Trondheim, Norway.
authors: Trond
authors: T
authors: Nordtug
authors: SINTEF Materials and Chemistry, Environmental Technology, 7465 Trondheim, Norway.
authors: Bjørn Henrik
authors: BH
authors: Hansen
mesh_terms: D000818:Animals; D033342:Copepoda / Q000378:metabolism*; D005374:Filtration; D008954:Models, Biological; D010316:Particle Size; D010578:Petroleum / Q000378:metabolism*; D059392:Petroleum Pollution; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D010578:Petroleum; D014874:Water Pollutants, Chemical
keywords: Calanus finmarchicus; Filter feeders; Oil spill modeling; Oil spills