Population connectivity of Atlantic sturgeon

Depleted Atlantic sturgeon populations are of great conservation concern because juveniles and sub-adults are caught incidentally in fisheries targeting other species. Along with researchers from Stony Brook University in a project headed by Mike Frisk, I am involved in research on the movements, survival, population genetics, and connectivity of Atlantic sturgeon among aggregation sites off the US east coast.

We used multi-state mark-recapture models to quantify the movements of Atlantic sturgeon tagged with acoustic transmitters among spatial strata along coastal areas of the New York Bight. We found that weekly mortality rates were particularly high during late spring, coinciding with known times and locations of sturgeon being caught as by-catch in fisheries targeting other species. This paper is published here. Other papers from Mike Frisk’s group are listed here.