Show simple item record

dc.contributor.authorStrand, E
dc.contributor.authorBagøien, E
dc.contributor.authorEdwards, M
dc.contributor.authorBroms, C
dc.contributor.authorKlevjer, T
dc.date.accessioned2022-01-21T13:41:37Z
dc.date.available2022-01-21T13:41:37Z
dc.date.issued2020-06
dc.identifier.issn0079-6611
dc.identifier.other102344
dc.identifier.urihttp://hdl.handle.net/10026.1/18606
dc.description.abstract

This paper analyses spatial and seasonal patterns for near-surface abundances of four Calanus species in the Northeast Atlantic based on monthly Continuous Plankton Recorder (CPR) Survey data collected during 2008–2016. C. finmarchicus, C. helgolandicus, C. hyperboreus and C. glacialis represent different ecosystems, and water masses with differing oceanographic properties and origins. Hence, these are considered as indicator species in climate change studies. A southern transect between Norway and the United Kingdom represented the northern North Sea, a central transect crossed the Norwegian and Iceland Seas, while a northern transect between Norway and Svalbard crossed the entrance to the Barents Sea. C. finmarchicus was prevalent everywhere, while C. helgolandicus was mainly confined to the northern North Sea though also documented downstream in the Norwegian Sea as far north as the entrance to the Barents Sea. The ratio of C. helgolandicus to C. finmarchicus abundances is expected to increase in the northern North Sea and southern Norwegian Sea given continued increases in seawater temperature. C. hyperboreus and C. glacialis were mainly associated with regions influenced by Arctic waters in the Iceland and Norwegian Seas, and south of Svalbard, respectively. Within Atlantic water masses in the central Norwegian Sea, a distinct second generation of C. finmarchicus with surprisingly high late-autumn concentrations of older stages were found. In Coastal water, two or more generations of C. finmarchicus occurred, while only one generation was evident in Arctic waters. Young C. finmarchicus of the first annual generation showed an earlier timing in Coastal than Atlantic and Arctic waters. The upper range of the temperature niche for both C. hyperboreus and C. glacialis was found to be around 7 °C. However, the peak occurrence within the study area was in 1–2 °C in Arctic water in the Iceland Sea in April for C. hyperboreus, while around 5 °C in Barents Sea Arctic water in July for C. glacialis. C. finmarchicus was present in all water masses with a peak occurrence in June at around 6 °C. C. finmarchicus generally dominated the Calanus-biomass, but C. hyperboreus in Arctic water in the Iceland and Norwegian Seas in spring, and C. helgolandicus in the northern North Sea, could match or exceed the biomass of C. finmarchicus.

dc.format.extent102344-102344
dc.languageen
dc.language.isoen
dc.publisherElsevier
dc.subjectCalanus species
dc.subjectContinuous Plankton Recorder
dc.subjectSpatial patterns
dc.subjectSeasonality
dc.subjectClimate change
dc.subjectNortheast Atlantic
dc.subjectNorwegian Sea
dc.titleSpatial distributions and seasonality of four Calanus species in the Northeast Atlantic
dc.typejournal-article
dc.typeArticle
plymouth.volume185
plymouth.publication-statusPublished
plymouth.journalProgress in Oceanography
dc.identifier.doi10.1016/j.pocean.2020.102344
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
dcterms.dateAccepted2020-05-04
dc.rights.embargodate2022-1-22
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1016/j.pocean.2020.102344
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2020-06
rioxxterms.typeJournal Article/Review


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record


All items in PEARL are protected by copyright law.
Author manuscripts deposited to comply with open access mandates are made available in accordance with publisher policies. Please cite only the published version using the details provided on the item record or document. In the absence of an open licence (e.g. Creative Commons), permissions for further reuse of content should be sought from the publisher or author.
Theme by 
Atmire NV