AMAPPS Southeast Aerial Cruise Fall 2017 at OBIS-SEAMAP

As part of the AMAPPS program, the Southeast Fisheries Science Center conducted aerial surveys of continental shelf and slope waters (up to the 2,000 m isobath) along the US east coast from New Jersey to South Carolina. The survey was conducted in 2017 between 18 Oct and 20 Nov aboard a NOAA Twin Otter aircraft at an altitude of 600 feet (183 m) and a speed of 110 knots. Survey tracklines were oriented perpendicular to the shoreline and latitudinally spaced 20 km apart. Fine-scale tracklines were surveyed closer to the shores of NJ, DE and VA over renewable energy leasing areas.

The survey was designed for analysis using Distance sampling and a two-team (independent observer) approach to correct for perception bias in resulting abundance estimates. Due to staffing issues on 20 Nov the survey was flown with one team with four observers (left and right bubbles, belly and a data recorder).

The goal of the survey was to conduct line-transect surveys using the Distance sampling approach to estimate the abundance and spatial distribution of cetaceans and turtles in waters over the continental shelf and slope (shoreline to 2,000 m isobath) of the eastern USA.

Dias, L. and L. Garrison. 2018. AMAPPS Southeast Aerial Cruise Fall 2017. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1858) on yyyy-mm-dd.

The funds for this project came from the Bureau of Ocean Energy Management (BOEM) and the US Navy through the respective Interagency Agreements for the AMAPPS project. Flight time and other aircraft costs were funded by NOAA Aircraft Operations Center. Staff time was provided by the NOAA Fisheries Service, Southeast Fisheries Science Center and NOAA Aircraft Operations Center. We would also like to thank the airplane’s crew and observers that were involved in collecting these data.

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Visual sightings are reviewed by lead observers and the field party chief at sea to verify species identifications and group size counts. Effort and sightings data from digital records are reviewed post-survey and compared to field notes and error logs. Corrected survey effort shapefiles are visually reviewed and verified.

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The archival process is currently under development.

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