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Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans

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dc.contributor.advisor Adamowicz, Sarah
dc.contributor.advisor Abbott, Cathryn Young, Robert 2016-06-13T12:58:37Z 2016-06-13T12:58:37Z 2016-03 2016-05-09 2016-06-13
dc.description.abstract Zooplankton are a major component of the marine environment in both diversity and biomass and are a crucial source of nutrients for organisms at higher trophic levels. Unfortunately, marine zooplankton biodiversity is not well known because of difficult morphological identifications and lack of taxonomic experts for many groups. In addition, the large taxonomic diversity present in plankton and low sampling coverage pose challenges in obtaining a better understanding of true zooplankton diversity. Molecular identification tools, like DNA barcoding, have been successfully used to identify marine planktonic specimens to a species. However, the behaviour of methods for specimen identification and species delimitation remain untested for taxonomically div¬erse and widely-distributed marine zooplanktonic groups. Using Canadian marine planktonic crustacean collections, I generated a multi-gene data set including COI-5P and 18S-V4 molecular markers of morphologically-identified Copepoda and Thecostraca (Multicrustacea: Hexanauplia) species. I used this data set to assess generalities in the genetic divergence patterns and to determine if a barcode gap exists separating interspecific and intraspecific molecular divergences, which can reliably delimit specimens into species. I then used this information to evaluate the North Pacific, Arctic, and North Atlantic biogeography of marine Calanoida (Hexanauplia: Copepoda) plankton. My work provides essential information on the molecular data and analysis tools necessary to conduct rapid biodiversity surveys on marine plankton, facilitating the exploration of unknown faunas using DNA barcoding and providing baseline data against which future comparisons can be made. en_US
dc.description.sponsorship Canadian Aquatic Invasive Species Network (CAISN II),Natural Sciences and Engineering Research Council of Canada (NSERC), Genomics Research and Development Initiative (Quarantine and Invasive Species Project) en_US
dc.language.iso en en_US
dc.rights Attribution-NoDerivs 2.5 Canada *
dc.rights.uri *
dc.subject Research Subject Categories::NATURAL SCIENCES en_US
dc.subject Research Subject Categories::NATURAL SCIENCES::Biology::Terrestrial, freshwater and marine ecology::Marine ecology en_US
dc.subject Barcode en_US
dc.subject Hexanauplia en_US
dc.subject Calanoida en_US
dc.subject Thecostraca en_US
dc.subject Copepoda en_US
dc.subject Biogeography en_US
dc.title Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans en_US
dc.type Thesis en_US Integrative Biology en_US Doctor of Philosophy en_US Department of Integrative Biology en_US

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Attribution-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NoDerivs 2.5 Canada