https://doi.org/10.82144/7d03b491 https://seamap.env.duke.edu/dataset/1891 https://www.gbif.org/dataset/b18cc876-e22c-446b-a91e-fc82722e0040 https://obis.org/dataset/7009678a-05ed-49fe-9033-c3d81f3bb19b Beth Josephson NOAA Fisheries Primary contact elizabeth.josephson@noaa.gov Debi Palka NOAA Northeast Fisheries Science Center Secondary contact dpalka@whsun1.wh.whoi.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu distributor Beth Josephson NOAA Fisheries Primary contact elizabeth.josephson@noaa.gov owner Debi Palka NOAA Northeast Fisheries Science Center Secondary contact dpalka@whsun1.wh.whoi.edu originator 2025-07-31 eng Original provider: NOAA Northeast Fisheries Science Center (NEFSC) Dataset credits: NOAA Northeast Fisheries Science Center (NEFSC) Abstract: During 30 July to 29 August 2007, the Northeast Fisheries Science Center conducted an abundance survey using an airplane and ship in waters from Cape Hatteras, North Carolina to the Bay of Fundy, from the coast line to beyond the 2000 m depth contour. The shipboard survey (using the R/V Henry Bigelow) was concentrated in the coastal waters in the Gulf of Maine, and the aerial survey (using the NOAA Twin Otter) covered the rest of the area. The aerial results are reported in this document; while the shipboard results are reported in a companion paper. The primary objective for the aerial survey is to determine the spatial distribution and abundance of cetaceans and sea turtles in the study region. The airplane flew at 600 feet above the water surface at about 110 knots and the circle-back (Hiby) data collection methods were used, where circles were performed on groups of cetaceans and turtles that had 5 or less animals per group. There were about 8,900 km of on-effort track lines that were conducted in Beaufort 3 or less and will be used in the abundance estimates. On these track lines, there were 15 species of identifiable cetaceans, 4 turtle species detected. There were 98 circle-backs performed on 20 species/species groups that can be used to estimate g(0) for these species. The abundance estimates using these data are underway. Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml Marine Biology Visual sighting Marine Animal Survey Marine mammals Sea turtles Visual Sighting Aircraft N/A Perpendicular distance to the animal is not publicly available. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction. https://seamap.env.duke.edu/dataset/1891 Oceans,North Atlantic -75.9 -64.58 45.49 35.26 2007-07-31 2007-08-28 Scientific names are based on the Integrated Taxonomic Information System (ITIS). species Alopias vulpinus thresher shark species Balaenoptera acutorostrata Common minke whale species Balaenoptera borealis Sei whale species Balaenoptera physalus Fin whale family Balaenopteridae Rorquals species Caretta caretta Loggerhead sea turtle order Cetacea Cetaceans species Cetorhinus maximus Basking shark species Chelonia mydas Green sea turtle superfamily Chelonioidea family Delphinidae Dolphins species Delphinus delphis Short-beaked common dolphin species Dermochelys coriacea Leatherback sea turtle subclass Elasmobranchii Cartilaginous fishes species Eubalaena glacialis North Atlantic right whale species Globicephala melas Long-finned pilot whale species Grampus griseus Risso's dolphin species Hyperoodon ampullatus Northern bottlenose whale genus Lagenorhynchus White-beaked dolphins species Lepidochelys kempii Kemp's ridley species Manta birostris Atlantic manta species Megaptera novaeangliae Humpback whale genus Mesoplodon Beaked whales species Mola mola Ocean sunfish species Phoca vitulina Harbor seal family Phocidae Earless seals species Phocoena phocoena Harbor porpoise species Physeter macrocephalus Sperm whale species Prionace glauca Blue shark species Rhinoptera bonasus Cownose ray genus Sphyrna Bonnethead sharks species Stenella coeruleoalba Striped dolphin species Tursiops truncatus Common bottlenose dolphin The primary objective is to determine the spatial distribution and abundance of cetaceans and sea turtles in the study region. The aerial survey was coordinated with a shipboard survey. Each platform covered separate regions, except for two small areas which were surveyed simultaneously by both platforms on the same day on the same track lines. notPlanned Beth Josephson NOAA Fisheries Primary contact elizabeth.josephson@noaa.gov NA NA NA Beth Josephson owner Debi Palka originator NA zd_1891 2025-07-31T17:27:28-04:00 dataset Josephson, B. and D. Palka. 2019. NEFSC North Atlantic Marine Mammal and Turtle Aerial Abundance Survey 2007. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/7d03b491. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/1891 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/1891/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/1891/eml OBIS-SEAMAP zd_1891 zd_1891