OTN NS Blue Shark Tracking - Tag Release Metadata

OTN Portal Manager, Ocean Tracking Network

Dataset credit

OBIS and Ocean Tracking Network


Primary contact OTN Portal Manager Ocean Tracking Network


Whoriskey, F., Davis, B. 2013. Ocean Tracking Network Nova Scotia Blue Shark Tracking Version # In OBIS Digital Collections. Published by OBIS, Digital http://www.obis.org/. Accessed on - INSERT DATE
Otn portal manager. 2020. OTN NS Blue Shark Tracking - Tag Release Metadata. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/103152415) on yyyy-mm-dd and originated from OBIS (https://obis.org/dataset/4383b458-286b-42c7-884a-3135cd66452c)


This is the OBIS extraction of the OTN NS Blue Shark Tracking project, consisting only of the release tagging metadata. i.e. the locations and dates of tagged animal release. If readers are interested in the full source dataset they should refer to the OTN web site (members.oceantrack.org). Abstract: In the Northwest Atlantic, the Ocean Tracking Network (OTN), in collaboration with Dalhousie University, is using an acoustic telemetry infrastructure to monitor the habitat use, movements, and survival of juvenile blue sharks (Prionace glauca). This infrastructure includes state-of-the-art acoustic receivers and oceanographic monitoring equipment, and autonomous marine vehicles carrying oceanographic sensors and mobile acoustic receivers. Long-life acoustic tags (n=40) implanted in the experimental animals will provide long-term spatial resolution of shark movements and distribution, trans-boundary migrations, site fidelity, and the species’ response to a changing ocean. This study will facilitate interspecific comparisons, documentation of intra- and interspecific interactions, and permit long-term monitoring of this understudied predator in the Northwest Atlantic. The study will also provide basic and necessary information to better inform fisheries managers and policy makers. This is pertinent given the recent formulation of the Canadian Plan of Action for Shark Conservation.



Supplemental information

This dataset was downloaded from OBIS (https://obis.org/). The records for only marine mammals, seabirds, sea turtles and rays and sharks were extracted. Records with no longitude/latitude or no date (eventDate) were excluded.
OBIS dataset page:
Data Provider's dataset page:


Whoriskey, F., Davis, B. 2013. Ocean Tracking Network Nova Scotia Blue Shark Tracking Version # In OBIS Digital Collections. Published by OBIS, Digital http://www.obis.org/. Accessed on - INSERT DATE



This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)Description
oidInternal ID
idRecord ID
dataset_idDataset ID
scientificnameScientific name
vernacularnameVernacular name
aphiaidAphia ID
taxonranktaxononic rank
individualcountGroup size / individual count
eventdateEvent date (precision varies)
eventtimeEvent time
decimallatitudeLatitude in decimal degrees
decimallongitudeLongitude in decimal degrees
coordinateprecisionCoordinate precision
catalognumberCatalog number
collectioncodeCollection code
occurrencestatusOccurrence status
basisofrecordBasis of record (HumanObservation / MachineObservation)
modifiedDate/time the record was modified
node_idNode ID
occurrenceidOccurrence ID
occurrenceremarksOccurrence remarks
eventidEvent ID
institutioncodeInstitution code
lifestageLife stage
sexGender of the animal if known
speciesSpecies by provider
datasetidDataset ID by provider
localityLocation of ocean
waterbodyDetails of ocean
droppedFlag indicating the record was dropped (always false)
absenceFlag indicating the record represents the absence of the species (always false)
marineFlag indicating the record is for marine life (always true)
Marine mammals0
Sea turtles0
Rays and sharks85
Other species0
Non spatial0
Non species0
Date, Begin2013-07-13
Date, End2017-08-27
Temporal prec.111000
Latitude44.15 - 44.31
Longitude-63.28 - -62.59
Coord. prec.6 decimal digits
Data typeAnimal sighting
Traveled (km)0
Contr. throughiOBIS
Sharing policy CC-BY (All)
Shared with None
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics