10.14286/ayf2oh https://members.oceantrack.org/ipt/resource?r=otndfohgss HGSS Ocean Tracking Network Data Centre Ocean Tracking Network Data Manager

Dalhousie University Halifax Nova Scotia B3H 4J1 CA

+1 (902) 494-4101 otndc@dal.ca https://members.oceantrack.org Jonathan Pye Ocean Tracking Network Data Manager

CA

jonathan.pye@dal.ca Cameron Freshwater Department of Fisheries and Oceans Canada cameron.freshwater@dfo-mpo.gc.ca 0000-0002-9593-3422 principalInvestigator Justin Fleming Department of Fisheries and Oceans Canada justin.fleming@dfo-mpo.gc.ca 0000-0002-9593-3422 contentProvider David Welch Kintama Research Services david.welch@kintama.com 0000-0001-8851-5436 contentProvider Cameron Freshwater Department of Fisheries and Oceans Canada cameron.freshwater@dfo-mpo.gc.ca 0000-0002-9593-3422 contentProvider Fred Whoriskey Dalhousie University fwhoriskey@dal.ca 0000-0001-7024-3284 contentProvider Scott Hinch University of British Columbia scott.hinch@ubc.ca 0009-0004-2809-734X contentProvider 2025-11-10 eng This is the OBIS extraction of the Ocean Tracking Network and Department of Fisheries and Oceans Canada (DFO) HGSS, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals. If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.HGSS). Abstract:Fraser River sockeye salmon productivity has declined over recent decades and elevated marine mortality rates due to predation are one hypothesized driver. We are deploying acoustic tags on adult sockeye salmon near Haida Gwaii as they undergo their return migration to the Fraser River. Detections data will be used to estimate cumulative survival rates to freshwater as well as stage-specific survival during marine migrations. ACOUSTIC TAGS n/a EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH Global Change Master Directory (GCMD) Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml 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. For information purposes, email to info@obis.org the full citation of any publication made (printed or electronic) that cites OBIS or any constituent part. Recognize the limitations of data in OBIS. See https://manual.obis.org/policy.html#disclaimer for more details This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License. https://members.oceantrack.org/project?ccode=NEP.HGSS BC -133.31 -126.05 54.71 51.12 2024-04-01 2026-03-31 Species included below are tagged by this project and have left any embargo. Other individuals or species may later be appended to this dataset. species Oncorhynchus nerka sockeye salmon 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. unknown Ocean Tracking Network Data Centre Ocean Tracking Network Data Manager

Dalhousie University Halifax Nova Scotia B3H 4J1 CA

+1 (902) 494-4101 otndc@dal.ca http://members.oceantrack.org This resource was created by the Ocean Tracking Network Data Centre as a summarized representation of animal presence determined by electronic tagging efforts. Darwin Core (DwC) records were extracted from the OTN database and filtered and summarized according to international agreed-upon standards. Program started 2024-04-01 and ran until 2026-03-31 Acoustic tags released. 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 Cameron Freshwater 0000-0002-9593-3422 principalInvestigator Fraser River sockeye salmon productivity has declined over recent decades and elevated marine mortality rates due to predation are one hypothesized driver. We are deploying acoustic tags on adult sockeye salmon near Haida Gwaii as they undergo their return migration to the Fraser River. Detections data will be used to estimate cumulative survival rates to freshwater as well as stage-specific survival during marine migrations. OTN is a research and technology development initiative headquartered at Dalhousie University, in Halifax Nova Scotia. OTN is funded by the Canada Foundation for Innovation (CFI) and is grateful to have once received funding from the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Social Sciences and Engineering Research Council of Canada (SSHRC). OTN is also grateful for the continued support from Research Nova Scotia, and OTN's host institution, Dalhousie University. No study area description for this project was provided to OTN for publication. A wide range of aquatic species are tagged with small electronic transmitters, surgically implanted or attached externally, which 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 collected by these listening stations are subsequently uploaded to one of many compatible data nodes, adding to the reach of an intercompatible network of networks designed and maintained by the Ocean Tracking Network, producing current and reliable records for every part of the globe. Certain classes of electronic tags and listening equipment (receivers) may also be outfitted or co-located with sensors to measure the ocean's temperature, depth, salinity, currents, chemistry, and other properties. 2025-05-27T00:00:00.000+00:00 dataset Fleming, J., Freshwater, C. 2024. Survival of sockeye salmon migrating past Haida Gwaii. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE Fleming, J., Freshwater, C. 2024. Survival of sockeye salmon migrating past Haida Gwaii In: Ocean Tracking Network Data Centre, Halifax Canada / otndc@dal.ca Retrieved: 2025-05-27 from db.load.oceantrack.org HGSS ASCII HTM https://members.oceantrack.org/project?ccode=NEP.HGSS https://members.oceantrack.org/@@site-logo/logo.png https://members.oceantrack.org/ipt/resource?id=otndfohgss/v2.xml