Leadership & Staff Shannon Johnson Research Specialist [javascript protected email address] Shannon joined MBARI in February, 2003 as a research technician in the Molecular Ecology lab for Bob Vrijenhoek. She is now working in the Zooplankton Biodiversity lab for Steve Haddock. After working on population genetics and phylogenetics of benthic animals from hydrothermal vents, hydrocarbon seeps, and whale falls, she is moving up into the water column. Her aim now is to understand how gelatinous animal (especially ctenophore) populations are connected. She is especially interested in applying statistics to better understand complex datasets. She also especially enjoys blue water diving to collect ctenophores, jellies, and siphonophores. Educational Background BS in Biology, UCLA (Bruins RULE!) – 1999 MS in Marine Science, Moss Landing Marine Laboratories, 2003
Chen, C., H. K. Watanabe, K. Gena, and S.B. Johnson. 2023. Anatomical shifts linked with unusual diets in deep‐sea snails. Ecology, 104(1). https://doi.org/10.1002/ecy.3847
Berman, G.H., S.B. Johnson, C.A. Seid, R.C. Vrijenhoek, and G.W. Rouse. 2023. Range extensions of Pacific bone-eating worms (Annelida, Siboglinidae, Osedax). Biodiversity Data Journal 11(e102803): 1–18. https://doi.org/10.3897/BDJ.11.e102803
Matsumoto, G.I., L.M. Christianson, B.H. Robison, S.H.D. Haddock, and S.B. Johnson. 2022. Atolla reynoldsi sp. nov. (Cnidaria, Scyphozoa, Coronatae, Atollidae): A new species of coronate Scyphozoan found in the Eastern North Pacific Ocean. Animals, 12: 1–21. https://doi.org/10.3390/ani12060742
Johnson, S.B., J.R. Winnikoff, D.T. Schultz, L.M. Christianson, W.L. Patry, C.E. Mills, and S.H.D. Haddock. 2022. Speciation of pelagic zooplankton: Invisible boundaries can drive isolation of oceanic ctenophores. Frontiers in Genetics, 13(970314): 1–17. https://doi.org/10.3389/fgene.2022.970314
Christianson, L.M., S.B. Johnson, D.T. Schultz, and S.H.D. Haddock. 2021. Hidden diversity of Ctenophora revealed by new mitochondrial COI primers and sequences. Molecular Ecology Resources, 22: 283–294. https://doi.org/10.1111/1755-0998.13459
Breusing, C., S.B. Johnson, V. Tunnicliffe, D.A. Clague, R.C. Vrijenhoek, and R.A. Beinart. 2020. Allopatric and sympatric drivers of speciation in alviniconcha hydrothermal vent snails. Molecular Biology and Evolution, 37(12): 3469–3484. https://doi.org/10.1093/molbev/msaa177
Pitz, K.J., J. Guo, S.B. Johnson, T.L. Campbell, H. Zhang, R.C. Vrijenhoek, F.P. Chavez, and J. Geller. 2020. Zooplankton biogeographic boundaries in the California Current System as determined from metabarcoding. PloS ONE, 15(6): 1–20. https://doi.org/10.1371/journal.pone.0235159
Breusing, C., S.B. Johnson, R.C. Vrijenhoek, and C.R. Young. 2019. Host hybridization as a potential mechanism of lateral symbiont transfer in deep‐sea vesicomyid clams. Molecular Ecology, 28(21): 4697–4708. https://doi.org/10.1111/mec.15224
Gwiazda, R.H., C.K. Paull, D. Caress, C.M. Preston, S.B. Johnson, E. Lundsten, and K. Anderson. 2019. The extent of fault-associated modern authigenic barite deposits offshore Northern Baja California revealed by high resolution mapping. Frontiers in Marine Science, 6: 1–13. https://doi.org/10.3389/fmars.2019.00460
Rouse, Greg W., S.K. Goffredi, S.B. Johnson, and R.C. Vrijenhoek. 2018. An inordinate fondness for Osedax (Siboglinidae: Annelida): Fourteen new species of bone worms from California. Zootaxa, 4377: 451. http://doi.org/10.11646/zootaxa.4377.4.1
Harvey, J.B.J., S.B. Johnson, J.L. Fisher, W.T. Peterson, and R.C. Vrijenhoek. 2017. Comparison of morphological and next generation DNA sequencing methods for assessing zooplankton assemblages. Journal of Experimental Marine Biology and Ecology, 487: 113–126. http://dx.doi.org/10.1016/j.jembe.2016.12.002
Goffredi, S.K., S.B. Johnson, V. Tunnicliffe, D. Caress, D. Clague, E. Escobar, L. Lundsten, J.B. Paduan, G. Rouse, D.L. Salcedo, L.A. Soto, R. Spelz-Madero, R. Zierenberg, and R. Vrijenhoek. 2017. Hydrothermal vent fields discovered in the southern Gulf of California clarify role of habitat in augmenting regional diversity. Proceedings of the Royal Society B, 284: 1–10. http://dx.doi.org/10.1098/rspb.2017.0817
Johnson, S.B., E.M. Krylova, A. Audzijonyte, H. Sahling, and R.C. Vrijenhoek. 2016. Phylogeny and origins of chemosynthetic vesicomyid clams. Systematics and Biodiversity, 15(4): 346–360. http://dx.doi.org/10.1080/14772000.2016.1252438
Jang, S.J., E. Park, W.K. Lee, S.B. Johnson, R.C. Vrijenhoek, and Y.J. Won. 2016. Population subdivision of hydrothermal vent polychaete Alvinella pompejana across equatorial and Easter Microplate boundaries. BMC Evolutionary Biology, 16: 235. http://dx.doi.org/10.1186/s12862-016-0807-9
Jeon, Y.S., S.B. Johnson, Y.J. Won, and R.C. Vrijenhoek. 2016. Complete mitochondrial genome of the headwater livebearer, Poeciliopsis monacha: the mother of clones. Mitochondrial DNA Part B, 1: 793–794. http://dx.doi.org/10.1080/23802359.2016.1197066
Zhang, H., S.B. Johnson, V.R. Flores, and R.C. Vrijenhoek. 2015. Intergradation between discrete lineages of Tevnia jerichonana, a deep-sea hydrothermal vent tubeworm. Deep-Sea Research Part II: Topical Studies in Oceanography, 121: 53–61. http://dx.doi.org/10.1016/j.dsr2.2015.04.028
Breusing, C., S.B. Johnson, V. Tunnicliffe, and R.C. Vrijenhoek. 2015. Population structure and connectivity in Indo-Pacific deep-sea mussels of the Bathymodiolus septemdierum complex. Conservation Genetics, 16: 1415–1430. https://doi.org/10.1007/s10592-015-0750-0
Johnson, S.B., A. Warén, V. Tunnicliffe, C. Van Dover, C.G. Wheat, T.F. Schultz, and R.C. Vrijenhoek. 2014. Molecular taxonomy and naming of five cryptic species of Alviniconcha snails (Gastropoda: Abyssochrysoidea) from hydrothermal vents. Systematics and Biodiversity, 13: 278–295. http://dx.doi.org/10.1080/14772000.2014.970673
Arellano, S.M., A.L. Van Gaest, S.B. Johnson, R.C. Vrijenhoek, and C.M. Young. 2014. Larvae from deep-sea methane seeps disperse in surface waters. Proceedings of the Royal Society B, 281: 20133276. http://dx.doi.org/10.1098/rspb.2013.3276
Johnson, S.B., Y.J. Won, J.B.J. Harvey, and R.C. Vrijenhoek. 2013. A hybrid zone between Bathymodiolus mussel lineages from eastern Pacific hydrothermal vents. BMC Evolutionary Biology, 13: 21. http://dx.doi.org/10.1186/1471-2148-13-21
Lundsten, L., S.B. Johnson, G.M. Calliet, A.P. DeVogelaere, and D.A. Clague. 2012. Morphological, molecular, and in situ behavioral observations of the rare deep-sea anglerfish Chaunacops coloratus (Garman, 1899), order Lophiiformes, in the eastern North Pacific. Deep Sea Research I, 68: 46–53. http://dx.doi.org/10.1016/j.dsr.2012.05.012
Rouse, G.W., S.K. Goffredi, S.B. Johnson, and R.C. Vrijenhoek. 2011. Not whale-fall specialists, Osedax worms also consume fishbones. Biology Letters, 7: 736–739. http://dx.doi.org/10.1098/rsbl.2011.0202
Coykendall, D.K., S.B. Johnson, S.A. Karl, R.A. Lutz, and R.C. Vrijenhoek. 2011. Genetic diversity and demographic instability in Riftia pachyptila tubeworms from eastern Pacific hydrothermal vents. BMC Evolutionary Biology, 11: 96. http://dx.doi.org/10.1186/1471-2148-11-96
McGann, M., R.C. Vrijenhoek, S. Johnson, J. Harvey, C.K. Paull, W. Ussler III, and L. Lundsten. 2010. Foraminiferal response to whale falls in the northeastern Pacific ocean. Proceedings of the International Symposium on Foraminifera, Bonn, Germany, 5–10 September 2010.
Ryan, J.P., S.B. Johnson, A.D. Sherman, K. Rajan, F. Py, H. Thomas, J.B.J. Harvey, L. Bird, J.D. Paduan, and R.C. Vrijenhoek. 2010. Mobile autonomous process sampling within coastal ocean observing systems. Limnology and Oceanography: Methods, 8: 394–402. http://dx.doi.org/10.4319/lom.2010.8.394
Hilário, A., S.B. Johnson, M.R. Cunha, and R.C. Vrijenhoek. 2010. High diversity of frenulates (Polychaeta: Siboglinidae) in the Gulf of Cadiz mud volcanoes: A DNA taxonomy analysis. Deep-Sea Research Part I, 57: 143–150.
Rouse, G.W., N.G. Wilson, S.K. Goffredi, S.B. Johnson, T. Smart, C. Widmer, C.M. Young, and R.C. Vrijenhoek. 2009. Spawning and development in Osedax boneworms (Siboglinidae, Annelida). Marine Biology, 156: 395–405. http://dx.doi.org/10.1007/s00227-008-1091-z
Vrijenhoek, R.C., S.B. Johnson, and G.W. Rouse. 2009. A remarkable diversity of bone-eating worms (Osedax; Siboglinidae; Annelida). BMC Biology, 7: 74. http://dx.doi.org/10.1186/1741-7007-7-74
Vrijenhoek, R.C., S.B. Johnson, and G.W. Rouse. 2008. Bone-eating Osedax females and their "harems" of dwarf males are recruited from a common larval pool. Molecular Ecology, 17: 4535–4544. http://dx.doi.org/10.1111/j.1365-294X.2008.03937.x
Rouse, G.W., K. Worsaae, S.B. Johnson, W.J. Jones, and R.C. Vrijenhoek. 2008. Acquisition of dwarf male "harems" by recently settled females of Osedax roseus n. sp. (Siboglinidae; Annelida). Biological Bulletin, 214: 67–82. http://dx.doi.org/10.2307/25066661
Johnson, S.B., A. Warén, and R.C. Vrijenhoek. 2008. DNA barcoding of Lepetodrilus limpets reveals cryptic species. Journal of Shellfish Research, 27: 43–51. http://dx.doi.org/10.2983/0730-8000(2008)27[43:Dbollr]2.0.Co;2
Jones, W.J., S.B. Johnson, G.W. Rouse, and R.C. Vrijenhoek. 2008. Marine worms (genus Osedax) colonize cow bones. Proceedings of the Royal Society B, 275: 387–391. http://dx.doi.org/10.1098/rspb.2007.1437
Génio, L., S.B. Johnson, R.C. Vrijenhoek, M.R. Cunha, P.A. Tyler, S. Kiel, and C.T.S. Little. 2008. New record of “Bathymodiolus” mauritanicus Cosel 2002 from the Gulf of Cadiz (NE Atlantic) mud volcanoes. Journal of Shellfish Research, 27: 53–61.
Goffredi, S.K., S.B. Johnson, and R.C. Vrijenhoek. 2007. Genetic and potential function of microbial symbionts associated with newly discovered species of Osedax polychaete worms. Applied and Environmental Microbiology, 73: 2314–2323. http://dx.doi.org/10.1128/AEM.01986-06
Braby, C.E., G.W. Rouse, S.B. Johnson, W.J. Jones, and R.C. Vrijenhoek. 2007. Bathymetric and temporal variation among Osedax boneworms and associated megafauna on whale-falls in Monterey Bay, California. Deep-Sea Research Part I, 54: 1773–1791. http://dx.doi.org/10.1016/j.dsr.2007.05.014
Foster, M.S., L.M. McConnico, L. Lundsten, T. Wadsworth, T. Kimball, L.B. Brooks, M. Medina-Lopez, R. Riosmena-Rodriguez, G. Hernandez-Carmona, R.M. Vasquez-Elizondo, S. Johnson, and D.L. Steller. 2007. Diversity and natural history of a Lithothamnion muelleri-Sargassum horridum community in the Gulf of California. Ciencias Marinas, 33: 367–384.
Johnson, S.B, and J.B. Geller. 2006. Larval settlement can explain the adult distribution of Mytilus californianus Conrad but not of M. galloprovincialis Lamarck or M. trossulus Gould in Moss Landing, central California: Evidence from genetic identification of spat. Journal of Experimental Marine Biology and Ecology, 328: 136–145. http://dx.doi.org/10.1016/j.jembe.2005.07.007
Johnson, S.B, C.R. Young, W.J. Jones, A. Warén, and R.C. Vrijenhoek. 2006. Migration, isolation, and speciation of hydrothermal vent limpets (Gastropoda; Lepetodrilidae) across the Blanco Transform Fault. Biological Bulletin, 210: 140–157. http://dx.doi.org/10.2307/4134603