Assessing impacts of simulated oil spills on the Northeast Arctic cod fishery.
Mar Pollut Bull
; 126: 63-73, 2018 Jan.
Article
in En
| MEDLINE
| ID: mdl-29421135
ABSTRACT
We simulate oil spills of 1500 and 4500m3/day lasting 14, 45, and 90days in the spawning grounds of the commercial fish species, Northeast Arctic cod. Modeling the life history of individual fish eggs and larvae, we predict deviations from the historical pattern of recruitment to the adult population due to toxic oil exposures. Reductions in survival for pelagic stages of cod were 0-10%, up to a maximum of 43%. These reductions resulted in a decrease in adult cod biomass of <3% for most scenarios, up to a maximum of 12%. In all simulations, the adult population remained at full reproductive potential with a sufficient number of juveniles surviving to replenish the population. The diverse age distribution helps protect the adult cod population from reductions in a single year's recruitment after a major oil spill. These results provide insights to assist in managing oil spill impacts on fisheries.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Petroleum Pollution
/
Gadiformes
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
Mar Pollut Bull
Year:
2018
Document type:
Article