Behavioral responses of Atlantic cod to sea temperature changes Public Deposited

http://ir.library.oregonstate.edu/concern/articles/ff365707q

This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by John Wiley & Sons Ltd. The published article can be found at:  http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292045-7758

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Understanding responses of marine species to temperature variability is essential to predict impacts of future climate change in the oceans. Most ectotherms are expected to adjust their behavior to avoid extreme temperatures and minimize acute changes in body temperature. However, measuring such behavioral plasticity in the wild is challenging. Combining 4 years of telemetry-derived behavioral data on juvenile and adult (30–80 cm) Atlantic cod (Gadus morhua), and in situ ocean temperature measurements, we found a significant effect of sea temperature on cod depth use and activity level in coastal Skagerrak. During summer, cod were found in deeper waters when sea surface temperature increased. Further, this effect of temperature was stronger on larger cod. Diel vertical migration, which consists in a nighttime rise to shallow feeding habitats, was stronger among smaller cod. As surface temperature increased beyond ~15°C, their vertical migration was limited to deeper waters. In addition to larger diel vertical migrations, smaller cod were more active and travelled larger distances compared to larger specimens. Cold temperatures during winter tended, however, to reduce the magnitude of diel vertical migrations, as well as the activity level and distance moved by those smaller individuals. Our findings suggest that future and ongoing rises in sea surface temperature may increasingly deprive cod in this region from shallow feeding areas during summer, which may be detrimental for local populations of the species.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Freitas, C., Olsen, E. M., Moland, E., Ciannelli, L., & Knutsen, H. (2015). Behavioral responses of Atlantic cod to sea temperature changes. Ecology and Evolution, 5(10), 2070-2083. doi:10.1002/ece3.1496
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-07-20T21:24:26Z No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) CiannelliLorenzoCEOASBehavioralResponseAtlantic.pdf: 1376434 bytes, checksum: 1c1af9e709c36ddca6a61bb65d308107 (MD5) CiannelliLorenzoCEOASBehavioralResponseAtlanticSupportingInfo.pdf: 172980 bytes, checksum: 40846dea4afe712d9e0a12fac843102f (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-07-20T21:25:08Z (GMT) No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) CiannelliLorenzoCEOASBehavioralResponseAtlantic.pdf: 1376434 bytes, checksum: 1c1af9e709c36ddca6a61bb65d308107 (MD5) CiannelliLorenzoCEOASBehavioralResponseAtlanticSupportingInfo.pdf: 172980 bytes, checksum: 40846dea4afe712d9e0a12fac843102f (MD5)
  • description.provenance : Made available in DSpace on 2015-07-20T21:25:08Z (GMT). No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) CiannelliLorenzoCEOASBehavioralResponseAtlantic.pdf: 1376434 bytes, checksum: 1c1af9e709c36ddca6a61bb65d308107 (MD5) CiannelliLorenzoCEOASBehavioralResponseAtlanticSupportingInfo.pdf: 172980 bytes, checksum: 40846dea4afe712d9e0a12fac843102f (MD5) Previous issue date: 2015-05

Relationships

Parents:

This work has no parents.

Last modified Default

Items