Descripción
This is the OBIS extraction of the Ocean Tracking Network and Kintama Research Services (KRS) Residence Time and Survival of Fraser River (Chilko) Chinook Salmon in the Strait of Georgia, 2016, 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.CCS).
Abstract:Marine survival of Fraser River Chinook salmon stocks has decreased to <1% in recent years and lack of information on downstream and early marine survival hampers their effective management. We conducted a small acoustic telemetry pilot study on 100 Chilko River Chinook that were reared at Chehalis Hatchery B.C. and then transported and released into the Chilko River. The project goals were to estimate freshwater survival, investigate residence timing in the Strait of Georgia, and begin to investigate early marine survival. Because marine acoustic receiver arrays capable of detecting smolts implanted with small 180 kHz acoustic tags only monitor the northern exit from the Strait of Georgia, residence time and early marine survival could only be potentially estimated if smolts migrated north before tag batteries expired five months after ocean entry. Freshwater survival of acoustic-tagged Chinook to the Fraser River mouth (49%) was comparable to other populations or species which migrate the same distance downstream; however, their downstream migration rate 18 km/day) was dramatically slower than that of wild Chilko Lake sockeye, which migrate rapidly to the ocean after exit from Chilko Lake (100-170 km/day). It is unknown whether this behavioural difference is the result of their hatchery origin and transport to Chilko Lake. Only one fish was detected in the Strait of Georgia and none were detected exiting. Combined with the results from trawl surveys, the complete lack of detections in the Discovery Islands and Johnstone Strait suggest that Chilko Chinook do not migrate directly north after river exit. Instead, they likely remain in the Strait of Georgia for at least several months. It is unclear if smolts eventually exited the Strait via the southern route, died during their summer residence, or simply ceased migration to take up residence. An animation of the movements of the Chilko Lake Chinook smolts released in 2016 is available on our website (http://kintama.com/visualizations/).
Registros
Los datos en este recurso de evento de muestreo han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 332 registros.
también existen 2 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.
- Event (core)
- ExtendedMeasurementOrFact
- Occurrence
Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.
Descargas
Descargue la última versión de los datos como un Archivo Darwin Core (DwC-A) o los metadatos como EML o RTF:
Versiones
La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.
¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
Welch, D., Rechisky, E., Porter, A., Winchell, P. 2016. Residence Time and Survival of Fraser River (Chilko) Chinook Salmon in the Strait of Georgia, 2016. Kintama Research Services.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es Ocean Tracking Network. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.
Registro GBIF
Este recurso no ha sido registrado en GBIF
Palabras clave
ACOUSTIC TAGS; EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH; Occurrence; Observation; Samplingevent
Datos externos
Los datos del recurso también están disponibles en otros formatos
Residence Time and Survival of Fraser River (Chilko) Chinook Salmon in the Strait of Georgia, 2016 | https://members.oceantrack.org/project?ccode=NEP.CCS ASCII HTM |
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Contactos
¿Quién creó el recurso?:
¿Quién puede resolver dudas acerca del recurso?:
¿Quién documentó los metadatos?:
¿Quién más está asociado con el recurso?:
Cobertura geográfica
BC
Coordenadas límite | Latitud Mínima Longitud Mínima [51,71, -124,11], Latitud Máxima Longitud Máxima [51,72, -124,1] |
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Cobertura taxonómica
Species included below are tagged by this project and have left any embargo. Other individuals or species may later be appended to this dataset.
Especie | Oncorhynchus tshawytscha (Chinook salmon) |
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Cobertura temporal
Fecha Inicial / Fecha Final | 2016-01-01 / 2016-12-31 |
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Datos del proyecto
Marine survival of Fraser River Chinook salmon stocks has decreased to <1% in recent years and lack of information on downstream and early marine survival hampers their effective management. We conducted a small acoustic telemetry pilot study on 100 Chilko River Chinook that were reared at Chehalis Hatchery B.C. and then transported and released into the Chilko River. The project goals were to estimate freshwater survival, investigate residence timing in the Strait of Georgia, and begin to investigate early marine survival. Because marine acoustic receiver arrays capable of detecting smolts implanted with small 180 kHz acoustic tags only monitor the northern exit from the Strait of Georgia, residence time and early marine survival could only be potentially estimated if smolts migrated north before tag batteries expired five months after ocean entry. Freshwater survival of acoustic-tagged Chinook to the Fraser River mouth (49%) was comparable to other populations or species which migrate the same distance downstream; however, their downstream migration rate 18 km/day) was dramatically slower than that of wild Chilko Lake sockeye, which migrate rapidly to the ocean after exit from Chilko Lake (100-170 km/day). It is unknown whether this behavioural difference is the result of their hatchery origin and transport to Chilko Lake. Only one fish was detected in the Strait of Georgia and none were detected exiting. Combined with the results from trawl surveys, the complete lack of detections in the Discovery Islands and Johnstone Strait suggest that Chilko Chinook do not migrate directly north after river exit. Instead, they likely remain in the Strait of Georgia for at least several months. It is unclear if smolts eventually exited the Strait via the southern route, died during their summer residence, or simply ceased migration to take up residence. An animation of the movements of the Chilko Lake Chinook smolts released in 2016 is available on our website (http://kintama.com/visualizations/).
Título | Residence Time and Survival of Fraser River (Chilko) Chinook Salmon in the Strait of Georgia, 2016 |
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Identificador | OTN Canada |
Fuentes de Financiación | 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. |
Descripción del área de estudio | No study area description for this project was provided to OTN for publication. |
Descripción del diseño | 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. |
Personas asociadas al proyecto:
Métodos de muestreo
Acoustic tags released.
Área de Estudio | Program started 2016-01-01 and ran until 2016-12-31 |
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Control de Calidad | 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 |
Descripción de la metodología paso a paso:
- 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.
Referencias bibliográficas
- Welch, D., Rechisky, E., Porter, A., Winchell, P. 2016. Residence Time and Survival of Fraser River (Chilko) Chinook Salmon in the Strait of Georgia, 2016. Kintama Research Services. In: Ocean Tracking Network Data Centre, Halifax Canada / otndc@dal.ca Retrieved: 2018-02-14 from db.load.oceantrack.org
Metadatos adicionales
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
Propósito | 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. |
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Identificadores alternativos | 10.14286/ea3dmj |
https://members.oceantrack.org/ipt/resource?r=otnkrsresidencetimeandsur |