OTN Effects of ultraviolet radiation exposure on salmon smolt mortality - Tag Release Metadata

Latest version published by Ocean Tracking Network on Feb 20, 2019 Ocean Tracking Network

This is the OBIS extraction of the OTN Effects of ultraviolet radiation exposure on salmon smolt mortality 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: Marine survival rates of many juvenile salmon populations have declined in recent decades. Although several potential causes have been proposed, there has been little conclusive evidence for which factors are responsible or not responsible for these declines. We experimen- tally addressed the hypothesis that exposure of coho salmon Oncorhynchus kisutch or sockeye salmon O. nerka to solar ultraviolet-B radiation (UVB) during freshwater rearing of fry and parr life-history stages increases mortality at the time of smoltification and ocean entry. Juvenile coho and sockeye salmon were reared in outdoor hatchery tanks either exposed to full spectrum sun- light or shielded from UVB radiation by plastic screens for up to 9 mo prior to release. Smolts were tagged with acoustic transmitters and detected with hydrophone receivers during their downriver and early ocean migration. Survival of treatment groups was compared using Cormack-Jolly- Seber and Burnham mark-recapture models. While exposure to UVB resulted in decreased growth of juvenile coho salmon, survivorship during the early marine period was unaffected by the UVB treatment for both populations. This first attempt to experimentally address the hypo - thesis of impaired survival resulting from solar UVB radiation has shown that other factors are more likely responsible for observed declines in salmon marine survival rates. Taken directly from Melnychuk MC, Walters CJ, Christensen V, Bothwell ML, and Welch DW. 2012. Effects of solar ultraviolet radiation exposure on early ocean survival and fry-to-smolt growth of juvenile salmon. Marine Ecology Progress Series 457: 251–264. doi:10.3354/meps09426

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 636 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.

Downloads

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 636 records in English (18 KB) - Update frequency: irregular
Metadata as an EML file download in English (15 KB)
Metadata as an RTF file download in English (14 KB)

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:

Melnychuk MC, Walters CJ, Christensen V, Bothwell ML, and Welch DW. 2012. Effects of solar ultraviolet radiation exposure on early ocean survival and fry-to-smolt growth of juvenile salmon. Version # In OBIS Digital Collections. Published by OBIS, Digital http://www.obis.org/. Accessed on - INSERT DATE

Rights

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/.

GBIF Registration

This resource has not been registered with GBIF

Keywords

Occurrence; Observation

Contacts

Who created the resource:

OTN Portal Manager
OTN Portal Manager
Ocean Tracking Network 1355 Oxford St B3H 3Z1 Halifax Nova Scotia CA +1 (902) 494-4101
http://members.oceantrack.org

Who can answer questions about the resource:

OTN Portal Manager
OTN Portal Manager
Ocean Tracking Network 1355 Oxford St B3H 3Z1 Halifax Nova Scotia CA +1 (902) 494-4101
http://members.oceantrack.org

Who filled in the metadata:

OTN Portal Manager
OTN Portal Manager
Ocean Tracking Network 1355 Oxford St B3H 3Z1 Halifax Nova Scotia CA +1 (902) 494-4101
http://members.oceantrack.org

Who else was associated with the resource:

Author
Villy Christensen
University of British Columbia
http://www.ubc.ca
Author
Carl Walters
University of British Columbia
http://www.ubc.ca
Author
David Welch
Kintama Research Services
http://kintama.com
Principal Investigator
Mike Melnychuk
Author
Max Bothwell

Geographic Coverage

Cheakamus River, Tenderfoot Creek, Cultus Lake, Sweltzer Creek

Bounding Coordinates South West [49.08, -123.16], North East [49.83, -121.98]

Taxonomic Coverage

All tagged specimens were identified to species. Each steelhead trout was weighed, was measured. Average measurements for steelhead trout: Average weight:0.063 kg Average length (FORK):0.181 m Each sockeye, kokanee was measured. Average measurements for sockeye, kokanee: Average length (FORK):0.171 m Each Coho salmon was measured. Average measurements for Coho salmon: Average length (FORK):0.133 m

Species  Oncorhynchus mykiss (steelhead trout),  Oncorhynchus nerka (sockeye, kokanee),  Oncorhynchus kisutch (Coho salmon)

Temporal Coverage

Start Date / End Date 2006-05-04 / 2008-05-22

Project Data

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:

Principal Investigator
Sara Iverson

Sampling Methods

Acoustic tags released.

Study Extent Tagging program started in 2006, ending in 2008
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:

  1. 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.

Bibliographic Citations

  1. Melnychuk MC, Walters CJ, Christensen V, Bothwell ML, and Welch DW. 2012. Effects of solar ultraviolet radiation exposure on early ocean survival and fry-to-smolt growth of juvenile salmon. In: Melnychuk MC, Walters CJ, Christensen V, Bothwell ML, and Welch DW. 2012. Effects of solar ultraviolet radiation exposure on early ocean survival and fry-to-smolt growth of juvenile salmon.

Additional Metadata

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.
Alternative Identifiers https://oceantrack.org/ipt/resource?r=otnuwasheffectsofultravio