Biological Productivity in the Northeast Pacific: Comparing an in-situ method with incubation based methods

Simple item page
dc.contributor.authorGiesbrecht, Karina
dc.contributor.supervisorHamme, Roberta Claire
dc.date.accessioned2013-10-29T21:12:05Z
dc.date.available2013-10-29T21:12:05Z
dc.date.copyright2010en_US
dc.date.issued2013-10-29
dc.degree.departmentSchool of Earth and Ocean Sciences
dc.degree.levelMaster of Science M.Sc.en_US
dc.description.abstractIn-situ net community production (NCP) was measured on nine cruises along Line P in the subarctic Northeast Pacific during 2007-2009 and incubation based new, regenerated and carbon production on four cruises starting in August 2008. In-situ NCP, determined using the O2/Ar gas ratio in the mixed layer, averaged 18.4±5.1 mmol O2 m-2 d-1 for stations west of 130°W in June and August. In-situ NCP was nearly equivalent to 24-h 15NO3 - based euphotic zone integrated new production (New-P) with an average NCP: New-P ratio of 1.3±0.4 that was consistent over a range of environmental conditions. The relationship between NCP and 24-h 13C integrated production (C-PP) was variable, but with a consistent mean NCP:C-PP ratio of 0.42±0.27 even when historical measurements were included in the comparison. Two offshore high productivity events were observed in the HNLC region of Line P, one centered between 134°W and 139°W and the other west of 130°W. Only one high productivity event shows conclusive evidence of being caused by iron deposition.en_US
dc.description.proquestcode0416en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/5014
dc.languageEnglisheng
dc.language.isoenen_US
dc.rights.tempAvailable to the World Wide Weben_US
dc.subjectNCPen_US
dc.subjectsubarcticen_US
dc.subjecteuphotic zoneen_US
dc.titleBiological Productivity in the Northeast Pacific: Comparing an in-situ method with incubation based methodsen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Giesbrecht_Karina_MSc_2010.pdf
Size:
2.75 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.74 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Electronic Theses and Dissertations (ETD)
 
University of Victoria Libraries

We acknowledge and respect the Lək̓ʷəŋən (Songhees and Esquimalt) Peoples on whose territory the university stands, and the Lək̓ʷəŋən and W̱SÁNEĆ Peoples whose historical relationships with the land continue to this day.