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TGS Seismic Survey Visual Sightings in Chukchi Sea 2013

Dataset homepage

Citation

Nelson T, Blees M, OBIS-SEAMAP (2021). TGS Seismic Survey Visual Sightings in Chukchi Sea 2013. OBIS-SEAMAP. Occurrence dataset https://doi.org/10.15468/nnbse9 accessed via GBIF.org on 2023-06-02.

Description

Original provider: TGS Dataset credits: ASRC Energy Services, Inc. TGS-NOPEC Geophysical Company Abstract: TGS-NOPEC Geophysical Company (TGS) conducted a 2D marine seismic survey along predetermined lines in U.S. Federal and international waters of the Chukchi Sea during the open-water season from 25 August to 30 October 2013. Two vessels were involved including 1) a seismic vessel (Geo Arctic) towing a 3,280 cu.in. seismic array and 8,100 m long solid streamer cable and 2) a marine mammal monitoring vessel (Norseman) which operated in advance of the seismic vessel. Both vessels had teams of visual protected species observers (PSOs) trained to monitor and implement seismic mitigation according to regulatory permits from U.S. Agencies. A combined-vessel total of 480 visual sightings occurred over 30,798 km of combined-vessel observer effort (both on and off effort). In addition to visual observers, the monitoring vessel also employed a towed passive acoustic monitoring (PAM) system. This dataset includes visual sighting data and acoustic data is presented separately. Supplemental information: In numeric or date/time fields, original data may contain 'X' which was replaced with Null.

Purpose

Not available

Sampling Description

Study Extent

NA

Sampling

NA

Method steps

  1. NA

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

Scientific names are based on the Integrated Taxonomic Information System (ITIS).
  1. Balaena mysticetus
    common name: Bowhead rank: species
  2. Erignathus barbatus
    common name: Bearded Seal rank: species
  3. Eschrichtius robustus
    common name: Gray Whale rank: species
  4. Phocoena phocoena
    common name: Harbor Porpoise rank: species
  5. Megaptera novaeangliae
    common name: Humpback Whale rank: species
  6. Balaenoptera acutorostrata
    common name: Minke Whale rank: species
  7. Odobenus rosmarus
    common name: Walrus rank: species
  8. Histriophoca fasciata
    common name: Ribbon Seal rank: species
  9. Pusa hispida
    common name: Ringed Seal rank: species
  10. Phoca largha
    common name: Spotted Seal rank: species
  11. Mammalia
    common name: mammals rank: class
  12. Mysticeti
    common name: baleen whales rank: suborder
  13. Caniformia
    common name: pinnipeds rank: suborder
  14. Caniformia
    common name: pinnipeds rank: suborder
  15. Cetacea
    common name: cetaceans rank: order

Geographic Coverages

North Pacific Ocean,Arctic Ocean,Chukchi Sea

Bibliographic Citations

Contacts

Troy Nelson
originator
position: Primary contact
TGS-NOPEC Geophysical Company
email: Tnelson@arcis.com
Megan Blees
originator
position: Secondary contact
ASRC Energy Services, Inc.
email: Megan.Blees@asrcenergy.com
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
Troy Nelson
owner
position: Primary contact
TGS-NOPEC Geophysical Company
email: Tnelson@arcis.com
Megan Blees
originator
position: Secondary contact
ASRC Energy Services, Inc.
email: Megan.Blees@asrcenergy.com
Troy Nelson
administrative point of contact
position: Primary contact
TGS-NOPEC Geophysical Company
email: Tnelson@arcis.com
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