NEFSC North Atlantic Marine Mammal and Turtle Aerial Abundance Survey 2007

Beth Josephson; Debi Palka; Debi Palka

doi:10.15468/rap6jm

NEFSC North Atlantic Marine Mammal and Turtle Aerial Abundance Survey 2007

Citation

Josephson, B. and D. Palka. 2018. NEFSC North Atlantic Marine Mammal and Turtle Aerial Abundance Survey 2007. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1891) on yyyy-mm-dd. https://doi.org/10.15468/rap6jm accessed via GBIF.org on 2024-12-14.

Description

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. Purpose: 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. Supplemental information: Perpendicular distance to the animal is not publicly available.

Purpose

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.

Sampling Description

Study Extent

NA

Sampling

NA

Method steps

NA

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

Scientific names are based on the Integrated Taxonomic Information System (ITIS).

Cetorhinus maximus
common name: basking shark rank: species
Mesoplodon
common name: beaked whales rank: genus
Prionace glauca
common name: blue shark rank: species
Tursiops truncatus
common name: Common Bottlenose Dolphin rank: species
Delphinus delphis
common name: Short-beaked Common Dolphin rank: species
Rhinoptera bonasus
common name: cownose ray rank: species
Balaenopteridae
common name: rorquals rank: family
Balaenoptera physalus
common name: Fin Whale rank: species
Grampus griseus
common name: Risso's Dolphin rank: species
Chelonia mydas
common name: Green Sea Turtle rank: species
Phocoena phocoena
common name: Harbor Porpoise rank: species
Phoca vitulina
common name: Harbor Seal rank: species
Sphyrna
common name: bonnethead sharks rank: genus
Megaptera novaeangliae
common name: Humpback Whale rank: species
Dermochelys coriacea
common name: Leatherback Sea Turtle rank: species
Caretta caretta
common name: Loggerhead Sea Turtle rank: species
Manta birostris
common name: Atlantic manta rank: species
Balaenoptera acutorostrata
common name: Minke Whale rank: species
Hyperoodon ampullatus
common name: Northern bottlenose whale rank: species
Mola mola
common name: ocean sunfish rank: species
Globicephala melas
common name: Long-finned Pilot Whale rank: species
Lepidochelys kempii
common name: Kemp's Ridley rank: species
Eubalaena glacialis
common name: North Atlantic Right Whale rank: species
Balaenoptera borealis
common name: Sei Whale rank: species
Physeter macrocephalus
common name: Sperm Whale rank: species
Stenella coeruleoalba
common name: Striped Dolphin rank: species
Alopias vulpinus
rank: species
Delphinidae
common name: dolphins rank: family
Elasmobranchii
common name: cartilaginous fishes rank: subclass
Phocidae
common name: earless seals rank: family
Elasmobranchii
common name: cartilaginous fishes rank: subclass
Chelonioidea
rank: superfamily
Cetacea
common name: cetaceans rank: order
Lagenorhynchus
common name: white-beaked dolphins rank: genus

Geographic Coverages

North Atlantic

Bibliographic Citations

Contacts

Beth Josephson
originator
position: Primary contact
NOAA Fisheries
email: elizabeth.josephson@noaa.gov

Debi Palka
originator
position: Secondary contact
NOAA Northeast Fisheries Science Center
email: dpalka@whsun1.wh.whoi.edu

OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu

OBIS-SEAMAP
distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu

Beth Josephson
owner
position: Primary contact
NOAA Fisheries
email: elizabeth.josephson@noaa.gov

Debi Palka
originator
position: Secondary contact
NOAA Northeast Fisheries Science Center
email: dpalka@whsun1.wh.whoi.edu

Beth Josephson
administrative point of contact
position: Primary contact
NOAA Fisheries
email: elizabeth.josephson@noaa.gov