Description
This is the OBIS extraction of the Ocean Tracking Network and Dalhousie University (DAL) Frobisher Bay, Canada, 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=FRO).
Abstract:This study described the marine migration distribution, movements, diet, mortality and duration of anadromous Arctic char relative to migration temporal phase and environmental conditions (salinity, temperature and prey availability, tides) in inner Frobisher Bay (63o N 68o W), a macrotidal estuary on southeastern Baffin Island, Nunavut, Canada. Of the 33 char acoustically tracked in 2009, 15 (45%) ventured beyond 10 km of either of the Armshow or Sylvia Grinnell river mouths and 9 (27%) were detected in both rivers’ estuaries. Marine mortality was estimated at 24.2% with 62.5% of the mortalities occurring within the Sylvia Grinnell River estuary. Assuming an emigration date of June 18th in both 2008 and 2009, marine migration duration was 46 to 78 days. Mean durations were 59±6 in 2008, 65±7 in 2009 and 63±7 days combined. Tracking revealed migrant movements into the intertidal zone with the flood and ebb of the tide. Most detections were in surface waters (0 to 3 m). Inter/sub-tidal movements and consecutive repetitive dives (maximum 52.8 m) resulted in extreme body temperature shifts (-0.2 to18.1oC). Approximately half of intertidal and subtidal detections were between 9 to13oC, and 1 to 3oC, respectively. Stomach contents and deep diving suggested feeding in both inter/sub-tidal zones. We suggest that char tolerate cold water at depth to capture prey in the subtidal zone, then seek warmer water to enhance feeding/digestion physiology.
Enregistrements de données
Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 829 enregistrements.
2 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.
Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.
Versions
Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.
Comment citer
Les chercheurs doivent citer cette ressource comme suit:
Spares, A. 2008.Frobisher Bay, NU, Canada: Arctic Char tagging. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Ocean Tracking Network. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.
Enregistrement GBIF
Cette ressource n'a pas été enregistrée sur le portail GBIF
Mots-clé
ACOUSTIC TAGS; EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH; Occurrence; Observation; Samplingevent
Données externes
Les données de la ressource sont disponibles dans d'autres formats
| Frobisher Bay, Canada | https://members.oceantrack.org/project?ccode=FRO ASCII HTM |
|---|
Contacts
- Chercheur Principal
http://orcid.org/0000-0002-8499-6460
- Créateur ●
- Personne De Contact
- Fournisseur De Contenu
Couverture géographique
NT
| Enveloppe géographique | Sud Ouest [63,35, -68,92], Nord Est [63,77, -68,27] |
|---|
Couverture taxonomique
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 | Salvelinus alpinus (Arctic char) |
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Couverture temporelle
| Date de début / Date de fin | 2008-01-01 / 2009-01-31 |
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Données sur le projet
This study described the marine migration distribution, movements, diet, mortality and duration of anadromous Arctic char relative to migration temporal phase and environmental conditions (salinity, temperature and prey availability, tides) in inner Frobisher Bay (63o N 68o W), a macrotidal estuary on southeastern Baffin Island, Nunavut, Canada. Of the 33 char acoustically tracked in 2009, 15 (45%) ventured beyond 10 km of either of the Armshow or Sylvia Grinnell river mouths and 9 (27%) were detected in both rivers’ estuaries. Marine mortality was estimated at 24.2% with 62.5% of the mortalities occurring within the Sylvia Grinnell River estuary. Assuming an emigration date of June 18th in both 2008 and 2009, marine migration duration was 46 to 78 days. Mean durations were 59±6 in 2008, 65±7 in 2009 and 63±7 days combined. Tracking revealed migrant movements into the intertidal zone with the flood and ebb of the tide. Most detections were in surface waters (0 to 3 m). Inter/sub-tidal movements and consecutive repetitive dives (maximum 52.8 m) resulted in extreme body temperature shifts (-0.2 to18.1oC). Approximately half of intertidal and subtidal detections were between 9 to13oC, and 1 to 3oC, respectively. Stomach contents and deep diving suggested feeding in both inter/sub-tidal zones. We suggest that char tolerate cold water at depth to capture prey in the subtidal zone, then seek warmer water to enhance feeding/digestion physiology.
| Titre | Frobisher Bay, NU, Canada: Arctic Char tagging |
|---|---|
| Financement | 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. |
| Description du domaine d'étude / de recherche | No study area description for this project was provided to OTN for publication. |
| Description du design | 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. |
Les personnes impliquées dans le projet:
Méthodes d'échantillonnage
Acoustic tags released.
| Etendue de l'étude | Program started 2008-01-01 and ran until 2009-01-31 |
|---|---|
| Contrôle qualité | 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 |
Description des étapes de la méthode:
- 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.
Citations bibliographiques
- Spares, A. 2008.Frobisher Bay, NU, Canada: Arctic Char tagging In: Ocean Tracking Network Data Centre, Halifax Canada / otndc@dal.ca Retrieved: 2011-06-06 from db.load.oceantrack.org
Métadonnées additionnelles
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
| Objet | 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. |
|---|---|
| Identifiants alternatifs | 10.14286/6tt9qb |
| https://members.oceantrack.org/ipt/resource?r=otnacadiaufrobisherbayca |