Seasonal trends and weighted persistence for 3 target species:
Blueback herring, American shad, and Atlantic mackerel
The Trend in Abundance Metric was developed to address the following question concerning the distribution of specific fish species relative to places in the North Atlantic Marine Ecoregion:
Where in the ecoregion has the abundance been increasing or decreasing? (trends)
The Weighted Persistence metric was developed to address the following questions concerning the distribution of specific fish species relative to places in the North Atlantic Marine Ecoregion:
Where in the ecoregion has the species been consistently found over time? (persistence)
Where in the ecoregion is the species consistently found in high abundances? (persistence weighted by abundance).
