BOEMRE ENVIRONMENTAL STUDIES PROGRAM:  ONGOING STUDIES

BOEMRE OCS Region:

Atlantic

Planning Area:

All

Title:

Atlantic Marine Assessment Program for Protected Species (AMAPPS) (AT-10-x11)

Total Cost:  $7.6 million

Period of Performance:  FY 2010-2014

Conducting Organization:

NOAA, National Marine Fisheries Service

BOEMRE Contact:

Dr. Deborah Epperson

Description:

Background:  The primary tools for the assessment of population abundance and spatial distribution are aerial and shipboard line-transect surveys.  These surveys typically employ visual detection of animals at the surface, though more recently passive acoustic monitoring has been incorporated into these surveys to improve detection of marine mammals.  Within U.S. Atlantic waters, the NOAA Northeast and Southeast Fisheries Science Centers have jointly and independently conducted broad-scale aerial and vessel surveys to support stock assessments. Regional aerial surveys have primarily been used to assess marine mammals and turtles within waters over the continental shelf to just beyond the shelf break.  The deeper waters of the continental shelf and the inner continental slope to the U.S. Exclusive Economic Zone (EEZ) are most typically surveyed using large vessels and provide data primarily on marine mammals and sea birds.  For NOAA, both aerial surveys and vessel surveys have primarily been conducted during summer months with occasional surveys in the winter.  In general, the goals of the surveys were to provide abundance estimates over large spatial scales, and they have often focused on specific stocks of management interest.  These survey programs have provided critical information supporting stock assessment and management of protected species and form the basis for spatially explicit models used in impact assessments.  There are critical gaps in the data available for population assessments.  First, there are very limited data available outside of Summer months (June-August).  The last comprehensive, year round surveys of the Atlantic coast were conducted during the late 1970's and early 1980's in the form of surveys of the southeast and northeast Atlantic coast, respectively.  The lack of data, particularly during spring, winter, and fall, severely limits the ability to predict seasonal spatial distribution, especially for seabirds which disperse widely during the "nonbreeding" season.  There are large and important differences for seabird use of the marine environment between summer and winter.  Therefore, surveys for seabirds need to be uniformly distributed throughout the year.  Second, visual line-transect surveys suffer from known negative biases.  Historical surveys typically have not attempted to correct for these biases, limiting the ability to conduct comparative studies to evaluate trends in population size.  Most surveys conducted over the last 5-10 years have included approaches to correct for the ability of observers to see animals at the surface.  However, in the case of marine turtles, along with deep diving marine mammals, it is particularly important to account for the availability of animals at the surface.  Corrections for dive-surface intervals are a critical gap in assessments of population status.  Finally, there has been relatively limited assessment of seabird and pinniped (e.g., harbor seal, gray seal) abundance in U.S. Atlantic Ocean waters.  Both of these taxa have the potential to be impacted by offshore energy projects and require dedicated assessment efforts.

Objectives:  

  • collect broad-scale data over multiple years on the seasonal distribution and abundance of marine mammals (cetaceans and pinnipeds), marine turtles, and sea birds using direct aerial and shipboard surveys of coastal U.S. Atlantic Ocean waters;

  • collect similar data at finer scales at several sites of particular interest to NOAA

  • partners using visual and acoustic survey techniques;

  • conduct tag telemetry studies within surveyed regions of marine turtles, pinnipeds and

  • seabirds to develop corrections for availability bias in the abundance survey data and

  • collect additional data on habitat use and life-history, residence time, and frequency of use;

  • explore alternative platforms and technologies to improve population assessment studies; and

  • assess the population size of surveyed species at regional scales; and develop models and associated tools to translate these survey data into seasonal, spatially-explicit density estimates incorporating habitat characteristics.

Methods:  The AMAPPS program will update the available data for marine mammals, turtles, and seabirds, and address critical information gaps in their assessments.  The spatial scope of the program includes the U.S. western North Atlantic Ocean coast from the shoreline to the U.S, EEZ. Waters of major estuarine systems (e.g., Delaware Bay, Chesapeake Bay, and Pamlico Sound) may also be covered during aerial surveys.  Within the larger area, there are a number of locations where fine-scale visual and/or passive acoustic surveys will be completed to provide enhanced resolution of densities by season.  These data will also provide additional information for testing of the density estimation models to be developed under the 6th objective.  Fine-scale surveys will be incorporated into the surveys effort, as appropriate.  Seabird data will be collected in several ways.  Ongoing coastal aerial sea duck and seabird surveys will be expanded spatially (northward and seaward to -30 nm), and seasonally to provide detailed estimates of seabird abundance and distribution.  Seabird observers will also be deployed on NOAA survey vessels conducting marine mammal and turtle line transect surveys as well as on other NOAA fishery cruises as Platforms of Opportunity to obtain data on offshore distribution and abundance of seabirds.  For seabird surveys conducted from vessels, surveys should go to the shelf break.  Data collection will begin during summer 2010 with aerial surveys in the Northeast and Southeast Atlantic Regions.

Products:  The data collected during the shipboard/aerial surveys and tagging data will be incorporated into a comprehensive geospatial database. This will include the QA/QC'd sighting and telemetry data, survey effort, visual detections, passive acoustic detections, and ancillary habitat data collected during each survey.  This comprehensive ORACLE database will be available within NOAA firewalls to its partners.  Limited sightings information will also be made available outside the NOAA firewall to online data access systems such as OBIS-SEAMAP.  The goal of these data management systems will be to provide ready access to the collected data for both public users and government agencies in support of environmental assessments.  For seabirds, data will also be incorporated into the seabird database presently housed by U.S.G.S. at Patuxent Wildlife Research Center.  The spatial modeling efforts will also be integrated into online or distributed products.  In addition, the collected data will be incorporated into modeling efforts in an interactive manner to allow users to develop customized models for times and areas of interest.  This effort will build off the Strategic Decision Support System developed jointly by NOAA and Duke University and funded by the Navy SERDP program.  Paper products expected to be produced by the project include at a minimum: annual updates to the Atlantic Ocean and Gulf of Mexico Marine Mammal Stock Assessment Report, annual reports of survey results, and a peer reviewed journal manuscript describing the model development and results.

Importance to BOEMRE:  Exploration, usually in the form of seismic surveys, occurs in an area prior to drilling and production.  The seismic surveys provide information used by the offshore energy industry and government to evaluate the potential for offshore oil, gas, and methane hydrate resources and geologic hazards.  BOEMRE and industry need accurate data on the location, extent, and properties of hydrocarbon resources, as well as information on shallow geologic hazards and seafloor geotechnical properties in order to explore develop, produce and transport hydrocarbons safely and economically.  In addition to potential oil and gas exploration and production, there has been a global movement to develop marine-based renewable energy sources.  Wind farms, tidal and ocean wave turbine systems are in various stages of planning for U.S. Atlantic coastal and offshore waters.  Seismic surveys may be used to appropriately site structures for wind energy projects.  Pile driving to place structures has also been identified as a source of potential impacts to biological resources.  Sand and gravel operations also utilize seismic profiles to locate and identify resources.  Though the potential impact-producing activities from the production of wind, wave or tidal energy, or the development of sand and gravel resources, may differ from those presented by oil and gas exploration and development, detailed information on the affected resources will be required for appropriate analysis and mitigation of any of the activities.

Current Status:  ongoing

Final Report Due:

March 2014

Publications:

none

Affiliated WWW Sites:

http://www.wildlifetracking.org/index.shtml?project_id=537

Revised date:

April 2011

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