Development of harmful algal blooms in a coastal lagoon: the influence of physicochemical processes and phytoplankton ecophysiology

Simple item page
dc.contributor.authorKobryn, Arielle Jensen
dc.contributor.supervisorVarela, Diana Esther
dc.date.accessioned2012-08-30T18:09:50Z
dc.date.available2012-08-30T18:09:50Z
dc.date.copyright2012en_US
dc.date.issued2012-08-30
dc.degree.departmentDepartment of Biology
dc.degree.levelMaster of Science M.Sc.en_US
dc.description.abstractThis study was conducted in Esquimalt lagoon, located southwest of Victoria, British Columbia, Canada. Physical characteristics of the water column, e.g. circulation and stratification, changed seasonally resulting from variations in tides, temperature, precipitation and wind. Chemical characteristics, e.g. oxygen and dissolved nutrient concentrations, also differed temporally relative to those in the lagoon’s ocean source water (Juan de Fuca Strait) because of variations in local photosynthesis and nutrient use by phytoplankton. Diatom blooms occurred in the spring, and blooms of photosynthetic flagellates (Heterosigma akashiwo (2009) and Akashiwo sanguinea (2009 and 2010)) occurred in the late summer and early fall when nitrate, ammonium, and urea were depleted. Proliferation of these flagellates led to the development of harmful algal blooms (HABs) associated with oxygen depletion in the lagoon bottom waters. Increased oxygen demand from bacterial degradation of algal biomass and exudates was the likely cause for bottom water hypoxia under reduced tidal exchange.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/4220
dc.language.isoenen_US
dc.rights.tempAvailable to the World Wide Weben_US
dc.subjectNutrient uptakeen_US
dc.subjectHABen_US
dc.subjectAkashiwo sanguineaen_US
dc.subjectHeterosigma akashiwoen_US
dc.subjectSuccessionen_US
dc.subjectEsquimalt Lagoonen_US
dc.subjectOxygen depletionen_US
dc.subjectMicroalgaeen_US
dc.titleDevelopment of harmful algal blooms in a coastal lagoon: the influence of physicochemical processes and phytoplankton ecophysiologyen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Kobryn_Arielle_MSc_2012.pdf
Size:
25.61 MB
Format:
Adobe Portable Document Format
Description:
Thesis and raw data supplements in PDF portfolio
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.