2013. I.M. Systems Group. This polygon shapefile represents maintained navigation channels in the North Atlantic United States. The condition of navigation channels is repor... United States. National Oceanic and Atmospheric Administration.
Search Results
2012. I.M. Systems Group. This polygon shapefile represents the geographic location and identity of designated areas used to manage vessel traffic in the northeast United St... United States. National Oceanic and Atmospheric Administration.
1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, and 2013. 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.
2013. Applied Science Associates. This polygon shapefile represents marine mammal management areas in the Northeastern United States. The Code of Federal Regulations designates area... Northeast Ocean Data.
2010. United States. National Ocean Service, United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, and Coastal Services Center (U.S.). This polygon shapefile represents NMFS designated critical habitats for the northern right whale (Eubalaena glacialis). The designated habitat incl... Coastal Services Center (U.S.).