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1. Marine Fish Weighted Persistence (Fall), 1970-2006

2013. Nature Conservancy (U.S.). Weighted persistence is reported for each ten-minute square (TMS) for each of 48 target species. Weighted persistence is a calculation where each d... Northeast Ocean Data.

2. Marine Mammals Sightings Per Unit Effort, 1979-2007

1979. Nature Conservancy (U.S.). Geospatial data obtained from the United States Navy included point shapefiles of valid sightings for all marine mammal targets and pre-calculated ... Northeast Ocean Data.

3. Recreational Fishing Effort, 2000-2009

2000. Nature Conservancy (U.S.) and United States. National Marine Fisheries Service. This product was created by the Nature Conservancy based on data provided by the National Marine Fisheries Service. The number of trips information... Northeast Ocean Data.

4. Sea Turtle Sightings Per Unit Effort (Fall), Northwest Atlantic United States, 1979-2007

1979. Nature Conservancy (U.S.). This data product was created as part of the Northwest Atlantic Marine Ecoregional Assessment. The Nature Conservancy developed this science-based ... Northeast Ocean Data.

5. Sea Turtle Sightings Per Unit Effort (Spring), Northwest Atlantic United States, 1979-2007

1979. Nature Conservancy (U.S.). This data product was created as part of the Northwest Atlantic Marine Ecoregional Assessment. The Nature Conservancy developed this science-based ... Northeast Ocean Data.

6. Sea Turtle Sightings Per Unit Effort (Summer), Northwest Atlantic United States, 1979-2007

1979. Nature Conservancy (U.S.). This data product was created as part of the Northwest Atlantic Marine Ecoregional Assessment. The Nature Conservancy developed this science-based ... Northeast Ocean Data.

7. Sea Turtle Sightings Per Unit Effort (Winter), Northwest Atlantic United States, 1979-2007

1979. Nature Conservancy (U.S.). This data product was created as part of the Northwest Atlantic Marine Ecoregional Assessment. The Nature Conservancy developed this science-based ... Northeast Ocean Data.

8. Shellfish Habitats for Maine, Massachusetts, and New Hampshire, 1975-2013

1975. Nature Conservancy (U.S.). This shellfish habitat layer was derived from datasets from Maine, Massachusetts and New Hampshire state GIS resources. Shapefiles downloaded/provi... Northeast Ocean Data.