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.
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 85 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.
Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
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
Researchers should respect the following rights statement:
The publisher and rights holder of this work is Ocean Tracking Network. This [DATA(BASE)-NAME] is made available under the Open Data Commons Attribution License: http://www.opendatacommons.org/licenses/by/1.0/.
This resource has not been registered with GBIF
Who created the resource:
Who can answer questions about the resource:
Who filled in the metadata:
|Bounding Coordinates||South West [44.15, -63.28], North East [44.31, -62.59]|
All tagged specimens were identified to species. Each blue shark was weighed, was measured, had sex and life stage recorded. Average measurements for blue shark: Average weight:20.603 kg Average length (FORK):1.456 m Life stage:JUVENILE
|Species||Prionace glauca (blue shark)|
|Start Date / End Date||2013-07-13 / 2017-08-27|
No Description available
|Title||Ocean Tracking Network (OTN)|
|Funding||OTN is a $168-million research and technology development initiative headquartered at Dalhousie University, in Halifax Nova Scotia. Starting in 2008, OTN began deploying Canadian state of the art acoustic receivers and oceanographic monitoring equipment in key ocean locations. These are being used to document the movements and survival of marine animals carrying acoustic tags and to document how both are influenced by oceanographic conditions. OTN is funded by the 'Canada Foundation for Innovation' and the 'Natural Sciences and Engineering Research Council of Canada' with additional support from 'Dalhousie University' and the 'Social Sciences and Engineering Research Council of Canada'.|
|Study Area Description||OTN is a project of the Global Ocean Observing System (GOOS) providing infrastructure to collect comprehensive data on sea animals in relation to the ocean's changing physical properties at strategic locations along the sea floor in 14 ocean regions off all seven continents. OTN data are in the process of being routinely copied to International Oceanographic Data Exchange (IODE) recognized facilities at the Department of Fisheries and Ocean Canada for long term sustainability and to the Ocean Biogeographic Information System (www.obis.org) for public accessibility.|
|Design Description||A wide range of aquatic species - salmon, tuna, whales, sharks, penguins, crabs, and seals, to name a few, are tagged with small electronic transmitters, surgically implanted or attached externally, and can operate for up to 20 years. Acoustic receivers arranged in line on the ocean floor as well as attached to buoys, gliders and large animals (e.g. grey seals) pick up the coded acoustic signals from these tags identifying each tagged sea creature that passes within half a kilometer of the receiver. Data are subsequently uploaded to a central database, resulting in current and reliable global records that can be analyzed and applied to many different environmental research efforts. Tags and receivers are also be outfitted with sensors to measure the ocean's temperature, depth, salinity, currents, chemistry, and other properties.|
The personnel involved in the project:
Acoustic receivers were deployed and acoustic tags were released.
|Study Extent||Tagging program started in 2013 and is ongoing.|
|Quality Control||OTN species names are verified using the World Register of Marine Species (WoRMS). If species names on new data cannot be verified against (a) known valid names in OTN, and/or (b) WoRMs the Data Provider will be notified so they can check they are correct. Names that cannot be placed after checking with WoRMS are, where possible, placed on the basis of other authoritative sources, such as the Fishbase or ITIS; and once completely verified a request will be sent to WoRMS for addition of the verified species name. http://members.oceantrack.org/data/discovery/byspecies.|
Method step description:
- This resource was created by OTN data management for publication at OBIS. Darwin Core (DwC) records were extracted from the core OTN database in the required IPT format.
- Whoriskey, F., Davis, B. 2013. Ocean Tracking Network Nova Scotia Blue Shark Tracking In: Whoriskey, F., Davis, B. 2013. Ocean Tracking Network Nova Scotia Blue Shark Tracking
Access Constraints: none Use Constraints: Acknowledge the use of specific records from contributing databases in the form appearing in the 'Citation' field thereof (if any); and acknowledge the use of the OBIS facility. marine, harvested by OBIS
|Purpose||These data are for display on the OBIS portal and associated mapping programs and for download to personal computers for ad-hoc end-user analysis.|