| How long are diapausing copepods retained in the Gulf of Maine? | |
| Do behavior and environmental forcing influence retention and transport of diapausing copepods? | |
| What are the transport pathways of diapausing copepods in the Gulf of Maine? | |
Approach: Lagrangian particle tracking
| Simulate 3-D particle paths using flow fields from FVCOM (Chen et al. 2003) | |
| Define retention as the
percentage of particles remaining in a region for a given time - GOM or sub-regions - 1 July to 1 January |
|
| Environmental forcing - alongshore, cross-shelf winds - Scotian Shelf inflow |
|
| Behavior - passive, fixed-depth, density- seeking |
Retention is high even for early diapausers
Retention is influenced
by Scotian Shelf inflow
and alongshore winds
Basin regions have distinct retention properties and transport pathways
| Retention is high under all conditions in the deep GoM | |
| Least-understood processes
influence retention most: - behavior - Scotian Shelf inflow - Interannual variability in deep hydrography |
|
| Transport and retention patterns lead to regional variation in the origins of copepods emerging in spring | |