TGS Seismic Survey Visual Sightings in Chukchi Sea 2013

Troy Nelson; Megan Blees; Megan Blees

doi:10.15468/nnbse9

TGS Seismic Survey Visual Sightings in Chukchi Sea 2013

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

NA

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

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

Balaena mysticetus
common name: Bowhead rank: species
Erignathus barbatus
common name: Bearded Seal rank: species
Eschrichtius robustus
common name: Gray Whale rank: species
Phocoena phocoena
common name: Harbor Porpoise rank: species
Megaptera novaeangliae
common name: Humpback Whale rank: species
Balaenoptera acutorostrata
common name: Minke Whale rank: species
Odobenus rosmarus
common name: Walrus rank: species
Histriophoca fasciata
common name: Ribbon Seal rank: species
Pusa hispida
common name: Ringed Seal rank: species
Phoca largha
common name: Spotted Seal rank: species
Mammalia
common name: mammals rank: class
Mysticeti
common name: baleen whales rank: suborder
Caniformia
common name: pinnipeds rank: suborder
Caniformia
common name: pinnipeds rank: suborder
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