Atlantic grey seal breeding colonies in Hay and Saddle Islands, Nova Scotia

Alexander Seymour

doi:10.15468/y9x8ts

Atlantic grey seal breeding colonies in Hay and Saddle Islands, Nova Scotia

Citation

Seymour, A., Dale, J., Hammill, M., Halpin, P and Johnston, D. 2017. Automated detection and enumeration of marine wildlife using unmanned aircraft systems (UAS) and thermal imagery. Scientific Reports. 7: 45127. https://doi.org/10.15468/y9x8ts accessed via GBIF.org on 2023-06-08.

Description

Original provider: Duke Marine Robotics and Remote Sensing Lab Dataset credits: Duke Marine Robotics and Remote Sensing Lab Abstract: These RGB mosaics and thermal indices of Atlantic grey seal colonies at Hay and Saddle Island, Nova Scotia, were collected by small unmanned aircraft systems (UAS). The mosaics and thermal indices were assessed by human analysts, who counted the seals in the mosaic and classified individuals as 'young of the year' or 'adult'. Concurrently, an automated detection and classification model was applied to the datasets and compared to human counts. Purpose: These datasets were used to assess Atlantic grey seal populations and to compare and test wildlife survey methods. Supplemental information: The downloadable shapefile includes TIFF images of RGB mosaics and thermal indices. The size of the zipped file is 1GB and may take a long time to download. Within the dowloaded file, the 'Analysis Materials' folders contain point shapefiles of the seals counted and classified by human analysts. In addition, the folders contain the landscape masks that were applied to the thermal indices before running the automated detection models.

Purpose

These datasets were used to assess Atlantic grey seal populations and to compare and test wildlife survey methods.

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).

Halichoerus grypus
common name: Atlantic gray seal rank: species

Geographic Coverages

Oceans

Bibliographic Citations

Contacts

Alexander Seymour
originator
position: Primary contact
Duke University Marine Lab
email: alexander.c.seymour@duke.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

Alexander Seymour
owner
position: Primary contact
Duke University Marine Lab
email: alexander.c.seymour@duke.edu

Alexander Seymour
administrative point of contact
position: Primary contact
Duke University Marine Lab
email: alexander.c.seymour@duke.edu