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

OTN Portal Manager1, Villy Christensen2, Carl Walters2, David Welch3, Mike Melnychuk4, Max Bothwell5

1 Ocean Tracking Network, 1355 Oxford St, B3H 3Z1, Halifax, Canada; 2 University of British Columbia, ; 3 Kintama Research Services, ; 4 University of Washington, ; 5 Fisheries and Oceans Canada, 

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

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

Abstract

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

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=otnuwasheffectsofultravio

Taxonomic coverage

General taxonomic coverage description: 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
Taxonomic ranks
Species: Oncorhynchus mykiss, Oncorhynchus nerka, Oncorhynchus kisutch
Common names: steelhead trout, sockeye, kokanee, Coho salmon

Spatial coverage

General spatial coverage: Cheakamus River, Tenderfoot Creek, Cultus Lake, Sweltzer Creek
Coordinates: 49°49'48''N and 49°4'48''N Latitude; 123°9'36''W and 121°58'48''W Longitude 

Temporal coverage: May 4, 2006 - May 22, 2008

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 2006, ending in 2008
Sampling description: Acoustic tags 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 Effects of ultraviolet radiation exposure on salmon smolt mortality - 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=otnuwasheffectsofultravio
Publication date of data: 2019-02-20
Language: English

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

References
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.