Spares, Aaron D; Stokesbury, Michael J W; O'Dor, Ronald K; Dick, Terry A (2012): Water chemistry, and body temperature, swimming depth and stomach contents of Arctic char (Salvelinus alpinus) in inner Frobisher Bay, Canada [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.837365, Supplement to: Spares, AD et al. (2012): Temperature, salinity and prey availability shape the marine migration of Arctic char, Salvelinus alpinus, in a macrotidal estuary. Marine Biology, 159(8), 1633-1646, https://doi.org/10.1007/s00227-012-1949-y
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Abstract:
The influence of salinity, temperature and prey availability on the marine migration of anadromous fishes was determined by describing the movements, habitat use and feeding behaviours of Arctic char (Salvelinus alpinus). The objectives were to determine whether char are restricted to the upper water column of the inter-/subtidal zones due to warmer temperatures. Twenty-seven char were tracked with acoustic temperature/pressure (depth) transmitters from June to September, 2008/2009, in inner Frobisher Bay, Canada. Most detections were in surface waters (0-3 m). Inter-/subtidal movements and consecutive repetitive dives (maximum 52.8 m) resulted in extreme body temperature shifts (-0.2-18.1 °C). Approximately half of intertidal and subtidal detections were between 9-13 °C and 1-3 °C, respectively. Stomach contents and deep diving suggested feeding in both inter-/subtidal 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.
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Latitude: 63.505000 * Longitude: -68.313000
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Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
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Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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3 datasets
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Datasets listed in this publication series
- Spares, AD; Stokesbury, MJW; O'Dor, RK et al. (2012): (Table 1) Body temperature and swimming depth of individual Arctic char (Salvelinus alpinus) tracked in intertidal and subtidal zones of inner Frobisher Bay, Canada (July-September 2008/2009). https://doi.org/10.1594/PANGAEA.837362
- Spares, AD; Stokesbury, MJW; O'Dor, RK et al. (2012): (Table 2) Stomach content of anadromous Arctic char (Salvelinus alpinus) sampled in inner Frobisher Bay, Canada. https://doi.org/10.1594/PANGAEA.837363
- Spares, AD; Stokesbury, MJW; O'Dor, RK et al. (2014): (Table 3) Water temperature, salinity, pH and oxygen concentration in inner Frobisher Bay, Canada (July-September 2008/2009). https://doi.org/10.1594/PANGAEA.837364