|Mean Density||Confidence Interval||CV|
|Mean Abundance||Confidence Interval||CV|
AMAPPS Marine Mammal Model Viewer
The Atlantic Marine Assessment Program for Protected Species (AMAPPS) is a comprehensive multi-agency research program in the US Atlantic Ocean, from Maine to the Florida Keys. Its aims are to assess the abundance, distribution, ecology, and behavior of marine mammals, sea turtles, and seabirds throughout the US Atlantic and to place them in an ecosystem context. The AMAPPS Marine Mammal Habitat Model Viewer provides spatially-explicit information in a format that can be used when making marine resource management decisions to and will provide enhanced data to managers by addressing data gaps that are essential to support conservation initiatives mandated under the Marine Mammal Protection Act (MMPA), Endangered Species Act (ESA), and National Environmental Policy Act (NEPA) (NMFS 2016).
These seasonal spatially-explicit density distribution maps were developed under phase I of the AMAPPS project using animal distribution data collected during shipboard and aerial line transect surveys during 2010-2014, dive time data derived from tagged, and satellite and model-based static and dynamic environmental information (Palka et al. 2017).
To display the distribution of animal density (animals/km²) of a North Atlantic cetacean species within the spatial cells of the study area:
To select a specific region, click on the Select Data button. Note: This button will be grayed out until a selection has been submitted.
Press and hold down the left or right mouse button to start the area selection and release the button to finish the selection. A new pop-up window will display a summary of the area selected with the mean density/or number of animals, confidence interval, and coefficient of variation. In addition the pop-up window will display the details for each of the cells selected.
There are two different ways to download the species specific data displayed on the maps. The downloaded data are in CSV format and includes the following fields:
Distribution and abundance of wildlife is largely driven by physical and biological environmental factors, including climate, habitat characteristics and prey distribution (Ainley et al. 2005). To account for this, these spatially- and temporally-explicit density maps were based on animal density - environmental generalized additive statistical models that were fit to visual shipboard and aerial survey line-transect data, associated survey conditions, animal group characteristics, spatially- and temporally-explicit static and dynamic environmental data, and species-specific availability bias correction factors. For a more completed description see Palka et al. 2017.
Visual line transect data from ships and planes may result in incorrect density estimates when visibility biases are not accounted for (McLaren 1961). There are two types of visibility bias:
AMAPPS is a comprehensive multi-agency research program on the US Atlantic Outer Continental Shelf. The main agencies involved are the National Marine Fisheries Service (NMFS), US Fish and Wildlife Service (USFWS), Bureau of Ocean Energy Management Environmental Studies Program (BOEM), and the US Navy. Collaborations have also been built with numerous other national and international organizations.
These agencies require information on protected species (marine mammals, sea turtles, and seabirds) to implement and support compliance with the Marine Mammal Protection Act (MMPA; NMFS OPR 2017a), Endangered Species Act (ESA; NMFS OPR 2017b), National Environmental Policy Act (NMFS OSF 2017), Migratory Bird Treaty Act, and Executive Order 13186: Responsibilities of Federal Agencies to Protect Migratory Birds (USFWS 2017). In addition, spatial planning, public outreach and education is enhanced by collecting up-to-date information on protected species.
The objectives of the phase I of the AMAPPS program were to investigate both fine and broad scale patterns. Specifically the objectives were:
This work represents the efforts of many individuals and funders. Users of these map products are encouraged to use the following citation when the data or maps are included in reports or publications:
Palka, D.L., S. Chavez-Rosales, E. Josephson, D. Cholewiak, H.L. Haas, L. Garrison, M. Jones, D. Sigourney, G. Waring (retired), M. Jech, E. Broughton, M. Soldevilla, G. Davis, A. DeAngelis, C.R. Sasso, M.V.Winton, R.J. Smolowitz, G. Fay, E. LaBrecque, J.B. Leiness, Dettloff, M. Warden, K. Murray, and C. Orphanides. 2017. Atlantic Marine Assessment Program for Protected Species: 2010- 2014. US Dept. of the Interior, Bureau of Ocean Energy Management, Atlantic OCS Region, Washington, DC. OCS Study BOEM 2017-071. 211 pp.
Questions concerning the data and/or methodology should be directed to Debra Palka.
This study was funded, in part, by the US Department of the Interior, Bureau of Ocean Energy Management, Environmental Studies Program, Washington, DC, through Inter-Agency Agreement Number M10PG00075 with the U.S. Department of Commerce, National Oceanic and Atmospheric Administration. This report has been technically reviewed by BOEM and it has been approved for publication. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the US Government, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. These maps represent estimates of seasonal average densities and abundances. Thus, it is not expected the exact numbers will be present on any particular day.
NOAA Northeast Fisheries Science Center