OTN/DFO NE Newfoundland Acoustic Array and Atlantic Cod Tagging - Tag Release Metadata

OTN Portal Manager1, John Brattey2, Corey Morris3

1 Ocean Tracking Network, 1355 Oxford St, B3H 3Z1, Halifax, Canada; 2 Fisheries and Oceans Canada, ; 3 Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, 

Corresponding author(s): OTN Portal Manager (otndc@dal.ca)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Brattey, J., Morris, C. 2005. DFO NE Newfoundland Acoustic Array and Atlantic Cod Tagging. Version # In OBIS Digital Collections. Published by OBIS, Digital http://www.obis.org/. Accessed on - INSERT DATE

Abstract

This is the OBIS extraction of the OTN/DFO NE Newfoundland Acoustic Array and Atlantic Cod Tagging 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: An extensive network comprising approximately 30 arrays of acoustic receivers (Vemco VR2/VR2W) has been deployed in nearshore waters off the NE coast of Newfoundland; the receivers are in the water throughout the year to provide continuous monitoring and data are uploaded once/twice per year depending on accessibility. Several hundred cod equipped with coded V16 and V13 pingers (including some with depth/temperature sensor tags) have been released inshore and offshore over the past 5 yrs along with >35,000 conventionally (Floy) tagged cod. The primary purpose of the research is to investigate cod stock structure and movement patterns and estimate exploitation rates in support of assessments of the status of the cod stock in NAFO Divs 2J3KL. This is a SPERA project dataset.

Keywords: Occurrence, Observation

General description

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.
Additional information: 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

Project details

Project title: Ocean Tracking Network (OTN)
Personnel: Sara Iverson
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 descriptions/descriptor: 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.

Data published through GBIF: https://oceantrack.org/ipt/resource?r=otndfo-nafcdfonenewfoundl

Taxonomic coverage

General taxonomic coverage description: All tagged specimens were identified to species.
Each Atlantic cod was weighed, was measured, had age determined, had sex and life stage recorded.
Average measurements for Atlantic cod:
Average weight:3.020 kg
Average length (FORK):0.676 m
Average age: 4.000 year
Life stage:ADULT
Taxonomic ranks
Species: Gadus morhua
Common names: Atlantic cod

Spatial coverage

General spatial coverage: NAFO Divs 2J3KL
Coordinates: 50°4'48''N and 47°3'36''N Latitude; 55°36'0''W and 50°6'36''W Longitude 

Temporal coverage: May 18, 2005 - September 15, 2011

Methods

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.
Study extent description: Tagging program started in 2005 and is ongoing.
Sampling description: Acoustic receivers were deployed and acoustic tags were released.
Quality control description: 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.

Datasets

Dataset description
Object name: Darwin Core Archive OTN/DFO NE Newfoundland Acoustic Array and Atlantic Cod Tagging - Tag Release Metadata
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: https://oceantrack.org/ipt/archive.do?r=otndfo-nafcdfonenewfoundl
Publication date of data: 2019-02-20
Language: English

Metadata language: English
Date of metadata creation: 2019-02-20
Hierarchy level: Dataset

References
Brattey, J., Morris, C. 2005. DFO NE Newfoundland Acoustic Array and Atlantic Cod Tagging. In: Brattey, J., Morris, C. 2005. DFO NE Newfoundland Acoustic Array and Atlantic Cod Tagging.