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dc.contributor.authorBakke, Snorre
dc.contributor.authorSiikavuopio, Sten Ivar
dc.contributor.authorChristiansen, Jørgen Schou
dc.date.accessioned2019-06-04T15:25:28Z
dc.date.available2019-06-04T15:25:28Z
dc.date.issued2019-02-26
dc.description.abstractOcean warming drives latitudinal shifts in the distribution of ectotherm species. The rate and magnitude of such shifts are constrained by physiology and behavioural thermoregulation. Here, we investigated the thermal preference and lower critical temperature (CTmin) in female edible crab <i>Cancer pagurus</i>, a decapod crustacean with an ongoing northward dispersal along the Norwegian coast. The temperature selected by individual crabs from a northern (latitude ~69°N) and southern (latitude ~62°N) location was examined in a horizontal gradient (5.5-14.5°C) under a simulated day and night light regime. Irrespective of origin, crabs showed pronounced responses to the light cycle – during the day crabs stayed inactive in the warm end of the gradient but during night they actively explored the entire gradient. A preferred temperature of ~13 °C (measured as mode of loggings) was identified for crabs at both locations. Righting reflex experiments of crabs exposed to a rapid temperature drop (7 - 1 °C at -0.1 °C/min) identified a CTmin of ~1.3 °C (i.e., the temperature at which 50% of crabs failed to right from an up-side-down position), and with no significant difference between locations (p > 0.05). Our results provide important information about the functional characteristics of edible crab, and are discussed in context of the biology and ongoing northward dispersal of the species.en_US
dc.description.sponsorshipMøreforsking ASen_US
dc.descriptionSource at <a href=https://doi.org/10.5324/fn.v39i0.2738>https://doi.org/10.5324/fn.v39i0.2738</a>.en_US
dc.identifier.citationBakke, S., Siikavuopio, S.I. & Christiansen, J.S. (2019). Thermal behaviour of edible crab <i>Cancer pagurus</i> Linnaeus, 1758 in coastal Norway. <i>Fauna Norvegica, 39</i>, 1-11. https://doi.org/10.5324/fn.v39i0.2738en_US
dc.identifier.cristinIDFRIDAID 1682002
dc.identifier.doi10.5324/fn.v39i0.2738
dc.identifier.issn1502-4873
dc.identifier.issn1891-5396
dc.identifier.urihttps://hdl.handle.net/10037/15430
dc.language.isoengen_US
dc.publisherNTNU Open Access Journalsen_US
dc.relation.journalFauna Norvegica
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Zoophysiology and comparative physiology: 483en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Zoofysiologi og komparativ fysiologi: 483en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Zoogeography: 486en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Zoogeografi: 486en_US
dc.subjectCancer pagurusen_US
dc.subjectNorwayen_US
dc.subjectLatitudeen_US
dc.subjectthermal behaviouren_US
dc.subjectlower critical temperatureen_US
dc.titleThermal behaviour of edible crab Cancer pagurus Linnaeus, 1758 in coastal Norwayen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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