Margaret Docker

Name: Margaret Docker

Position Title: Professor

Office Phone Number: (204) 474-8831

Email: Margaret.Docker@umanitoba.ca

Website: https://mdockerlab.com/

Research and Teaching Interests

Biodiversity, Ecology and Environment, evolutionary biology, molecular systematics and phylogeography, population genetics, conservation genetics of fish (particularly lampreys and salmonids), genetic basis of parallel phenotypic evolution, life history diversity and evolution (particularly in lampreys), environmental DNA (eDNA) for monitoring of secretive aquatic organisms

Publications:

• Anderson, J.E., Cunha, A., and Docker, M.F. (in press) Novel “omega fibers” in superficial body-wall myotomes during metamorphosis in the northernbrook lamprey, Ichthyomyzon fossor. Canadian Journal of Zoology (in press).
• Docker, M.F., Beamish, F.W.H., Yasmin, T., Bryan, M.B., and Khan, A. 2019. The lamprey gonad. In Docker, M.F. (ed.), Lampreys: Biology, Conservation and Control, Vol. 2. Springer, Dordrecht, Netherlands. pp. 1–186.
• Docker, M.F. and Potter, I.C. 2019. Life history evolution in lampreys: alternative migratory and feeding types. In Docker, M.F. (ed.), Lampreys: Biology, Conservation and Control, Vol. 2. Springer, Dordrecht, Netherlands. pp. 287–409.
• Docker, M.F. and Hume, J.B. 2019. There and back again: lampreys in the 21st century and beyond. In Docker, M.F. (ed.), Lampreys: Biology, Conservation and Control, Vol. 2. Springer, Dordrecht, Netherlands. pp. 527–570.
• Spice, E.K., Whitesel, T.A., Silver, G.S., and M.F. Docker. 2019. Contemporary and historical river connectivity influence population structure in western brook lamprey in the Columbia River Basin. Conservation Genetics 20: 299–314.
• Neave, F.B., Steeves, T.B., Pratt, T.C., McLaughlin, R.L., Adams, J.V., and Docker, M.F. (2019) Stream characteristics associated with feeding type in silver (Ichthyomyzon unicuspis) and northern brook (I. fossor) lampreys and tests for phenotypic plasticity. Environmental Biology of Fishes 102: 615–627.
• Yusishen, M.E., Eichorn, F.C., Anderson, W.G., and Docker, M.F. 2018. Development of quantitative PCR assays for the detection and quantification of lake sturgeon (Acipenser fulvescens) environmental DNA. Conservation Genetics Resources https://doi.org/10.1007/s12686-018-1054-8.
• Evans, T.M., Janvier, P. and Docker, M.F. 2018. The evolution of lamprey (Petromyzontida) life history and the origin of metamorphosis. Reviews in Fish Biology and Fisheries 28: 825–838.
• Schloesser, N.A., Merkes, C.M., Rees, C.B., Amberg, J.J., Steeves, T.B., and Docker, M.F. 2018. Correlating sea lamprey density with environmental DNA detections in the lab. Management of Biological Invasions 9: 483–495.
• Aman, J.T., Docker, M.F. and Wilson Grimes, K. (2017). New England range extension of American Brook Lamprey (Lethenteron appendix), as confirmed by genetic analysis.Northeastern Naturalist 24, 536–543.
• Bartels, H., Wrede, C., Przybylski, M., Potter, I.C., and Docker, M.F. (2017).Implications of absence of seawater-type mitochondria-rich cells and results of molecular analyses for derivation of the non-parasitic Ukrainian brook lamprey Eudontomyzon mariae. Environmental Biology of Fishes 100, 509–518.
• Clemens, B.J., Beamish, R.J., Coates, K.C., Docker, M.F., Dunham, J.B., Gray, A.E., Hess, J.E., Jolley, J.C., Lampman, R.T., et al. (2017). Conservation challenges and research needs for Pacific Lamprey in the Columbia River Basin. Fisheries 42, 268-280.
• Clemens, B.J., Wyss, L., McCoun, R., Courter, I., Schwabe, L., Peery, C., Schreck, C.B., Spice, E.K., and Docker, M.F. (2017). Temporal genetic population structure and interannual variation in migration behavior of Pacific Lamprey Entosphenus tridentatus.Hydrobiologia 794, 223–240.
• Gingera, T.D., Bajno, R., Docker, M.F., and Reist, J.D. (2017). Environmental DNA as a detection tool for zebra mussels Dreissena polymorpha (Pallas, 1771) at the forefront of an invasion event in Lake Winnipeg, Manitoba, Canada. Management of Biological Invasions 8, 287–300.
• Kissinger, B.C., Harris, L.N., Swainson, D., Anderson, W.G., Docker, M.F., and Reist, J.D. (2017). Fine-scale population structure in lake trout (Salvelinus namaycush) influenced by life history variation in the Husky Lakes drainage basin, NT Canada.Canadian Journal of Fisheries and Aquatic Sciences. (in press)
• Mochnacz, N.J., Kissinger, B.C., Deslauriers, D., Guzzo, M.M., Enders, E.C., Anderson, W.G., Docker, M.F., Isaak, D.J., and Treberg, J.R. (2017). Development and testing of a simple field-based intermittent-flow respirometry system for riverine fishes.Conservation Physiology 5, cox048;doi:10.1093/conphys/cox048.

• Docker, M. (2016). Preface to “Jawless Fishes of the World”, pp. ix–xvi. Cambridge Scholars Publishing.
• Docker, M.F., Silver, G.S., Jolley, J.C., and Spice. E.K. (2016). Simple genetic assay distinguishes lamprey genera Entosphenus and Lampetra: comparison with existing genetic and morphological identification methods. North American Journal of Fisheries Management 36, 780–787.
• Gingera, T.D., Steeves, T.B., Boguski, D.A., Whyard, S., Li,. W., and Docker, M.F. (2016). Detection and identification of lampreys in Great Lakes streams using environmental DNA. Journal of Great Lakes Research 42, 649–659.
• Jolley, J.C., Kovalchuk, G., and Docker, M.F. (2016). River Lamprey (Lampetra ayresii) outmigrant upstream of the John Day Dam in the Mid-Columbia River. Northwestern Naturalist 97, 48–52.
• Rohlfing, K., Stuhlmann, F., Docker, M.F., and Burmester, T. (2016). Convergent evolution of hemoglobin switching in jawed and jawless vertebrates. BMC Evolutionary Biology 16, 30.
• Bartels, H., Docker M.F., Krappe M., White M.M., Wrede, C., and Potter, I.C. (2015).Variations in the presence of chloride cells in the gills of lampreys (Petromyzontiformes) and their evolutionary implications. Journal of Fish Biology 86, 1421–1428.
• Blanchfield, P.J., Kidd, K.A., Docker, M.F., Palace, V.P., Park, B.J., and Postma, L.D. (2015). Recovery of a wild fish population from whole-lake additions of a synthetic estrogen. Environmental Science and Technology 49, 3136–3144.
• Docker, M.F.; Hume, J.B. and Clemens, B.J. (2015). Introduction: a surfeit of lampreys. In Docker, M.F., Lampreys: Biology, Conservation and Control, Vol. 1 pp. 1–34. Springer, Dordrecht,
• Hess, J.E.; Campbell, N.R.; Docker, M.F.; Baker, C.; Jackson, A.; Lampman, R.; McIlraith, B.; Moser, M.L.; Statler, D.P.; Young, W.P.; Wildbill, A.J. and Narum, S.R. (2015). Use of genotyping-by-sequencing data to develop a high-throughput and multi-functional SNP panel for conservation applications in Pacific lamprey. Molecular Ecology Resources 15, 187–202.
• Maitland, P.S.; Renaud, C.B.; Quintella, B.R.; Close, D.A. and Docker, M.F. (2015).Conservation of native lampreys. In Docker, M.F., Lampreys: Biology, Conservation and Control, Vol. 1 pp. 375–428. Springer, Dordrecht,
• McCauley, D.W., M.F. Docker, S. Whyard, and W. Li (2015). Lampreys as diverse model organisms in the genomics era. BioScience 65, 1046–1056.
• Heath, G.; Childs, D.; Docker, M.F.; McCauley, D.W. and Whyard, S. (2014). RNA interference technology to control pest sea lampreys – a proof-of-concept. PLoS ONE 9(2), e88387.
• Penton, P.M.; McFarlane, C.T.; Spice, E.K.; Docker, M.F. and Davoren, G.K. (2014).Lack of genetic divergence in capelin (Mallotus villosus) spawning at beach versus subtidal habitats in coastal embayments of Newfoundland. Canadian Journal of Zoology 92, 377–382.
• Spice, E.K. and Docker, M.F. (2014). Reduced fecundity in non-parasitic lampreys may not be due to heterochronic shift in ovarian differentiation. Journal of Zoology 294, 50–58.
• Spice, E.K.; Whyard, S. and Docker, M.F. (2014). Gene expression during ovarian differentiation in parasitic and non-parasitic lampreys: implications for fecundity and life history types. General and Comparative Endocrinology 208, 116–125.
• Dunmall, K.M.; Reist, J.D.; Carmack, E.C.; Babaluk, J.A.; Heide-Jørgensen, M.P. and Docker, M.F. (2013). Pacific salmon in the Arctic: harbingers of change. In Mueter, F.J. and Dickson, D.M.S. and Huntington, H.P. and Irvine, J.R. and Logerwell, E.A. and MacLean, S.A. and Quakenbush, L.T. and Rosa, C., Responses of Arctic Marine Ecosystems to Climate Change. Alaska Sea Grant, University of Alaska Fairbanks,
• Hess, J.E.; Campbell, N.R.; Close, D.A.; Docker, M.F. and Narum, S.R. (2013).Population genomics of Pacific lamprey: adaptive variation in a highly dispersive species. Molecular Ecology 22, 2898–2916.
• Backhouse-James, S.M. and M.F. Docker (2012). Microsatellite and mitochondrial DNA markers show no evidence of population structure in walleye (Sander vitreus) in Lake Winnipeg. Journal of Great Lakes Research 38, 47–57.
• Bartels, H.; M.F. Docker; U. Fazekas, and I.C. Potter (2012). Functional and evolutionary implications of the cellular composition of the gill epithelium of feeding adults of a freshwater parasitic species of lamprey, Ichthyomyzon unicuspis. Canadian Journal of Zoology 90, 1278–1283.
• Boguski, D.A.; S.B. Reid; D.H. Goodman, D.H. and M.F. Docker (2012). Genetic diversity, endemism, and phylogeny of lampreys within the genus Lampetra sensu stricto (Petromyzontiformes: Petromyzontidae) in western North America. Journal of Fish Biology 81, 1891–1914.
• Docker, M.F.; N.E. Mandrak and D.D. Heath (2012). Contemporary gene flow between “paired” silver (Ichthyomyzon unicuspis) and northern brook (I. fossor) lampreys: implications for conservation. Conservation Genetics 13, 823–835.
• Spice, E.K.; D.H. Goodman; S.B. Reid and M.F. Docker (2012). Neither philopatric nor panmictic: microsatellite and mtDNA evidence suggest lack of natal homing but limits to dispersal in Pacific lamprey. Molecular Ecology 21, 2916–2930.
• Taylor, E.B.; L.N. Harris; E.K. Spice and M.F. Docker (2012). Microsatellite DNA analysis of parapatric lamprey (Entosphenus spp.) populations: implications for evolution, taxonomy and conservation of a Canadian endemic. Canadian Journal of Zoology 90, 291–303.
• Reid, S.B.; D.A. Boguski; D.H. Goodman and M.F. Docker (2011). Validity of Lampetra pacifica (Petromyzontiformes: Petromyzontidae), a brook lamprey described from the lower Columbia River Basin. Zootaxa 3091, 42–50.
• Spice, E.K.; T.A. Whitesel; C.T. McFarlane and M.F. Docker (2011). Characterization of twelve microsatellite loci for the Pacific lamprey (Entosphenus tridentatus) and cross amplification in five other lamprey species. Genetics and Molecular Research 10, 3246–3250.
• Clemens, B.J.; T.R. Binder; M.F. Docker; M.L. Moser and S.A. Sower (2010).Similarities, differences, and unknowns in biology and management of three parasitic lampreys of North America. Fisheries 35, 580–594.
• Luzier, C.W.; M.F. Docker and T.A. Whitesel (2010). Characterization of ten microsatellite loci for western brook lamprey Lampetra richardsoni. Conservation Genetics Resources 2, 71–74.
• Docker, M.F. (2009). A review of the evolution of nonparasitism in lampreys and an update of the paired species concept. American Fisheries Society 72, 71–114. InBiology, Management, and Conservation of Lampreys in North America (editors L.R. Brown, S.D. Chase, P.B. Moyle, R.J. Beamish, and M.G. Mesa).
• Goodman, D.H.; A.P. Kinziger; S.B. Reid and M.F. Docker (2009). Morphological diagnosis of Entosphenus and Lampetra ammocoetes (Petromyzontidae) in Washington, Oregon, and California. American Fisheries Society 72, 223–232. InBiology, Management, and Conservation of Lampreys in North America (editors L.R. Brown, S.D. Chase, P.B. Moyle, R.J. Beamish, and M.G. Mesa).
• McFarlane, C.T. and M.F. Docker (2009). Characterization of 14 microsatellite loci in the paired lamprey species Ichthyomyzon unicuspis and I. fossor and cross amplification in four other Ichthyomyzon species. Conservation Genetics Resources 1, 377–380.
• Renaud, C.B.; M.F. Docker and N.E. Mandrak (2009). Taxonomy, distribution, and conservation of lampreys in Canada. American Fisheries Society 72, 293–309. InBiology, Management, and Conservation of Lampreys in North America (editors L.R. Brown, S.D. Chase, P.B. Moyle, R.J. Beamish, and M.G. Mesa).
• Docker, M.F. (2008). Book critique: Hardisty shares his final thoughts on lampreys.Environmental Biology of Fishes 82, 11–15.
• Goodman, D.H.; S.B. Reid; M.F. Docker; G.R. Haas and A.P. Kinziger (2008).Mitochondrial DNA evidence for high levels of gene flow among populations of a widely distributed anadromous lamprey Entosphenus tridentatus (Petromyzontidae). Journal of Fish Biology 72, 400–417.
• Heath, D.D.; S. Jamieson; I. Stasiak; C.M. Bettles and M.F. Docker (2008). Genetic differentiation among sympatric migratory and resident life-history forms of Oncorhynchus mykiss in British Columbia. Transactions of the American Fisheries Society 137, 1268–1277.
• Docker, M.F.; G.R. Haas; D.H. Goodman; S.B. Reid and D.D. Heath (2007). PCR-RFLP markers detect 29 mitochondrial haplotypes in Pacific lamprey (Entosphenus tridentatus). Molecular Ecology Notes 7, 350–353.
• Neave, F.B.; N.E. Mandrak; M.F. Docker and D.L. Noakes (2007). An attempt to differentiate sympatric Ichthyomyzon ammocoetes using meristic, morphological, pigmentation and gonad analyses. Canadian Journal of Zoology 85, 549–560.
• Roy, D.; M.F. Docker; G.D. Haffner and D.D. Heath (2007). Body shape vs. colour associated initial divergence in the Telmatherina radiation in Lake Matano, Sulawesi, Indonesia. Journal of Evolutionary Biology 20, 1126–1137.
• Docker, M.F. (2006). Bill Beamish’s contributions to lamprey research and recent advances in the field. Guelph Ichthyology Reviews 7, 1–52.
• Heath, D.D.; J.M. Shrimpton; R.I. Hepburn; S.K. Jamieson; S.K. Brode and M.F. Docker (2006). Population structure and divergence using microsatellite and gene locus markers in Chinook salmon (Oncorhynchus tshawytscha) populations. Canadian Journal of Fisheries and Aquatic Sciences 63, 1370–1383.
• Neave, F.B.; N.E. Mandrak; M.F. Docker and D.L. Noakes (2006). Effects of preservation on pigmentation and length measurements in larval lampreys. Journal of Fish Biology 68, 991–1001.
• Bettles, C.M.; M.F. Docker; B. Dufour and D.D. Heath (2005). Hybridization dynamics between sympatric species of trout: loss of reproductive isolation. Journal of Evolutionary Biology 18, 1220–1233.
• Therriault, T.W.; M.I. Orlova; M.F. Docker; H.J. MacIsaac and D.D. Heath (2005).Invasion genetics of a freshwater mussel (Dreissena rostriformis bugensis)) in Eastern Europe: high gene flow and multiple introductions. Heredity 95, 16–23.
• Maeva, E.; I. Bruno; B.S. Zielinski; M.F. Docker; F.M. Severin and R.G. Maev (2004).The use of pulse-echo acoustic microscopy to non-invasively determine sex of living larval sea lamprey, Petromyzon marinus. Journal of Fish Biology 65, 148–156.
• Roy, D.; M.F. Docker; P. Hehanussa; D.D. Heath and G.D. Haffner (2004). Genetic and morphological data supporting the hypothesis of adaptive radiation in the endemic fish of Lake Matano. Journal of Evolutionary Biology 17, 1268–1276.
• Therriault, T.W.; M.F. Docker; M.I. Orlova; D.D. Heath and H.J. MacIsaac (2004).Molecular resolution of Dreissenidae (Mollusca: Bivalvia) including the first report of Mytilopsis leucophaeata in the Black Sea basin. Molecular Phylogenetics and Evolution 30, 479–489.
• Docker, M.F.; A. Dale and D.D. Heath (2003). Erosion of interspecific reproductive barriers resulting from hatchery supplementation of rainbow trout sympatric with cutthroat trout. Molecular Ecology 12, 3515–3521.
• Docker, M.F. and D.D. Heath (2003). Genetic comparison between anadromous steelhead and freshwater-resident rainbow trout in British Columbia, Canada.Conservation Genetics 4, 227–231.
• Docker, M.F.; S.A. Sower; J.H. Youson and F.W.H. Beamish (2003). Future sea lamprey control through regulation of metamorphosis and reproduction: A report from the SLIS II New Science and Control workgroup. Journal of Great Lakes Research 29(Supplement 1), 801–809.
• Docker, M.F. and D.D. Heath (2002). PCR-based markers detect genetic variation at growth and immune function-related loci in chinook salmon (Oncorhynchus tshawytscha). Molecular Ecology Notes 2, 606–609.
• Lorion, C.M.; D.F. Markle; S.B. Reid and M.F. Docker (2000). Re-description of the presumed-extinct Miller Lake lamprey, Lampetra minima. Copeia 2000, 1019–1028.
• Docker, M.F.; J.H. Youson; R.J. Beamish and R.H. Devlin (1999). Phylogeny of the lamprey genus Lampetra inferred from mitochondrial cytochrome b and ND3 gene sequences. Canadian Journal of Fisheries and Aquatic Sciences 56, 2340–2349.
• Kent, M.L.; M. Docker; J. Khattra; C.R. Vossbrinck; D.J. Speare and R.H. Devlin (1999).A new Microsporidium sp. (Microsporidia) from the musculature of the mountain whitefish Prosopium williamsoni from British Columbia: Morphology and phylogeny.Journal of Parasitology 85, 1114–1119.
• Docker, M.F.; M.L. Kent; D.M.L. Hervio; J.S. Khattra; L.M. Weiss; A. Cali and R.H. Devlin (1997). Ribosomal DNA sequence of Nucleospora salmonis Hedrick, Groff and Baxa, 1991 (Microsporea: Enterocytozooidae): Implications for phylogeny and nomenclature. Journal of Eukaryotic Microbiology 44, 55–60.
• Docker, M.F.; R.H. Devlin; J. Richard and M.L. Kent (1997). Sensitive and specific polymerase chain reaction assay for detection of Loma salmonae (Microsporea).Diseases of Aquatic Organisms 29, 41–48.
• Shaw, R.W.; M.L. Kent; M.F. Docker; A.M.V. Brown; R.H. Devlin and M.L. Adamson (1997). A new species of Loma (Microsporea) in shiner perch (Cymatogaster aggregata). Journal of Parasitology 83, 296–301.
• Docker, M.F. and F.W.H. Beamish (1994). Age, growth, and sex ratio among populations of least brook lamprey, Lampetra aepyptera, larvae: an argument for environmental sex determination. Environmental Biology of Fishes 41, 191–204.
• Docker, M.F. (1992). Labile sex determination in lampreys: The effect of larval density and sex steroids on gonadal differentiation. University of Guelph.
• Murdoch, S.P.; M.F. Docker and F.W.H. Beamish (1992). Effect of density and individual variation on growth in sea lamprey (Petromyzon marinus) larvae in the laboratory.Canadian Journal of Zoology 70, 184–188.
• Docker, M.F. and F.W.H. Beamish (1991). Growth, fecundity, and egg size of least brook lamprey, Lampetra aepyptera. Environmental Biology of Fishes 31, 219–227.
• Murdoch, S.P.; F.W.H. Beamish and M.F. Docker (1991). Laboratory study of growth and interspecific competition in larval lampreys. Transactions of the American Fisheries Society 120, 653–656.

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