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dc.contributor.authorKamin, Lisa M.
dc.date.accessioned2018-03-26T22:56:07Z
dc.date.available2018-03-26T22:56:07Z
dc.date.issued2010-05
dc.identifier.urihttp://hdl.handle.net/11122/8207
dc.descriptionThesis (M.S.) University of Alaska Fairbanks, 2010en_US
dc.description.abstractWe know little about the population structure of Gulf of Alaska (GOA) and Bering Sea rockfish, including Pacific ocean perch (POP, Sebastes alutus), and early life history information is sparse for many rockfish species. Young-of-the-year (YOY) POP were collected with surface trawls during surveys of juvenile salmon in the GOA and Bering Sea. These samples presented a unique opportunity to study POP genetics and life history. Fourteen microsatellite loci were used to characterize the genetic variation in POP collected in a total of 45 hauls over five years. The coincidence in timing and location of several collections between years allowed examination of both fine- and broad-scale geographic variation (within cohorts) as well as interannual (between cohorts) genetic variation. The geographic genetic structure of these collections was also compared to geographic structure of adult POP described in a previous study (Palof, 2008). As in the adult study, significant broad-scale geographic divergence was observed in YOY POP in the GOA. Fine-scale geographic divergence was also observed and may be the result of variable current regimes and oceanographic features at several locations. The limited amount of temporal variation observed seems to be the result of variable oceanography and fine-scale population structure rather than the influence of a sweepstakes effect. The relationship between genetic divergence and geographic separation is virtually identical in YOY and adult POP, which confirms that dispersal of POP is limited in all life stages and also demonstrates that most YOY are produced by adults that are located nearby.en_US
dc.description.tableofcontentsIntroduction -- Materials and methods -- Sample collection -- Species identification -- Microsatellite analysis -- Data analysis -- Results -- Species identification -- Microsatellite data analysis -- Discussion and conclusions -- References -- Appendix.en_US
dc.language.isoen_USen_US
dc.subjectPacific ocean perchen_US
dc.subjectAlaskaen_US
dc.subjectGeneticsen_US
dc.titleInterannual and spatial variation in the population genetic composition of young-of-the-year Pacific Ocean Perch (Sebastes alutus) in Alaskan watersen_US
dc.typeThesisen_US
dc.type.degreemsen_US
dc.identifier.departmentFisheries Divisionen_US
dc.contributor.chairGharrett, Anthony J.
dc.contributor.committeeHeifetz, Jonathan
dc.contributor.committeeTallmon, David
refterms.dateFOA2020-03-05T14:59:36Z


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