Occurrence

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

Latest version published by OBIS-SEAMAP on 24 April 2021 OBIS-SEAMAP
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Publication date:
24 April 2021
Published by:
OBIS-SEAMAP
License:
CC-BY-NC 4.0

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 3,355 records in English (165 KB) - Update frequency: not planned
Metadata as an EML file download in English (10 KB)
Metadata as an RTF file download in English (10 KB)

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.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 3,355 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

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.

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is OBIS-SEAMAP. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 4ef9d605-b08f-4f29-8d37-0536ffd2938e.  OBIS-SEAMAP publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.

Keywords

Occurrence,Marine Animal Survey,Marine Biology,Marine mammals,Computer Vision,Unmanned Aerial Vehicals,UAV,Unmanned Aircraft Systems,UAS; Observation; Occurrence

External data

The resource data is also available in other formats

OBIS-SEAMAP Dataset Page http://seamap.env.duke.edu/dataset/1462 UTF-8 Interactive map
FGDC Metadata http://seamap.env.duke.edu/dataset/1462/xml UTF-8 XML

Contacts

Alexander Seymour
  • Owner
  • Originator
  • Point Of Contact
Primary contact
Duke University Marine Lab
OBIS-SEAMAP
  • Metadata Provider
  • Distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
27708 Durham
NC
US

Geographic Coverage

Oceans

Bounding Coordinates South West [45.814, -63.253], North East [46.025, -59.683]

Taxonomic Coverage

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

Species Halichoerus grypus (Atlantic gray seal)

Temporal Coverage

Start Date / End Date 2015-01-30 / 2015-02-02

Project Data

No Description available

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

The personnel involved in the project:

Alexander Seymour
  • Owner

Sampling Methods

NA

Study Extent NA

Method step description:

  1. NA

Collection Data

Collection Name zd_1462
Collection Identifier zd_1462
Parent Collection Identifier OBIS-SEAMAP

Additional Metadata

marine, harvested by iOBIS

Purpose These datasets were used to assess Atlantic grey seal populations and to compare and test wildlife survey methods.
Alternative Identifiers http://ipt.env.duke.edu/resource?r=zd_1462