Natunewicz, C. C. University of Delaware, cecilyn@udel.edu
Epifanio, C. C. University of Delaware, epi@udel.edu

 
TWO-DIMENSIONAL SCALE OF LARVAL PATCHES IN A BUOYANCY-DRIVEN COASTAL CURRENT
 
The influence of physical and biological processes on the advection and diffusion of zooplankton patches depends on the scales of both the processes and the patches. This study examined the scale of patches of crab larvae in the Delaware Coastal Current. To characterize larval patch size in two dimensions, perpendicular transects (alongshelf and across-shelf) were sampled simultaneously via series of continuous plankton tows. Tows were accompanied by salinity, temperature, and flowmeter measurements. In the lab, larvae were identified to species and stage and larval densities were calculated. Larval patches along and across the shelf occurred on scales of one to several kilometers. The oceanic processes forming patches on these spatial scales are discussed, as are implications of this scale for larval recruitment.
 
Day: Thursday, Feb. 4
Time: 11:00 - 11:15am
Location: Eldorado Hotel
 
Code: SS26TH1100E