Karen Erica Selph


Department of Oceanography                                                 2436 Lamaku Place

University of Hawaii at Manoa                                                Honolulu, HI  96816

Honolulu, HI  96822

808 956-7941 (office)                                                     email:

808 956-9516 (fax)                             facility website:


Date of Birth:  22 July 1960


Professional Preparation

San Francisco State University            Biology, emphasis in Marine Biology    B.S. 1985

University of Hawaii at Manoa            Oceanography                     M.S. 1992, PhD. 1999

University of Hawaii at Manoa            Oceanography       Post-doctoral Appt. 1998-2002



Associate Specialist and Graduate Faculty, Department of Oceanography, University of Hawaii at Manoa, August 2007 to present.

Cooperating Graduate Faculty, Marine Biology, March 2013 to present.

Assistant Specialist, Department of Oceanography, University of Hawaii at Manoa, December 2002 to July 2007.

Director of SOEST Flow Cytometry Facility, University of Hawaii at Manoa, December 2002 to present.

Associate Graduate Faculty member, Department of Oceanography, University of Hawaii at Manoa, November 2004 to present.

Instructor, Department of Oceanography, University of Hawaii at Manoa, Fall 2000, 2003/2004 Academic Years to present.  Co-teach biological oceanography graduate core courses (OCN 621 & 626), as well as oceanography methods course (OCN 633).  Note: did not teach in OCN 626 Fall 2010, but did teach in OCN 621 in Spring 2011.

Technical Manager, SOEST Flow Cytometry Facility, University of Hawaii at Manoa,

July 1998 to December 2002.

Post-doctoral Associate, Department of Oceanography, University of Hawaii at Manoa, August 2001 to December 2002. M. R. Landry, P.I.

Research Assistant, Department of Oceanography, University of Hawaii at Manoa, Sept. 1987  - March 1998.  P.I.Õs: M.R. Landry and F.C. Dobbs.

Research Assistant, School of Oceanography, University of Washington, Seattle, WA.  Sept. 1986 – Aug. 1987.  M.R. Landry, P.I.



Accepted, 2010-2015:

1.  Buck, K., KE Selph, K Barbeau.  2010.  Iron-binding ligand production and copper speciation in an incubation experiment of Antarctic Peninsula shelf waters from the Bransfield Strait, Southern Ocean.  Marine Chemistry,122,148-159.

2.  Krause, JW, MA Brzezinski, MR Landry, SB Baines, DM Nelson, KE Selph, AG Taylor, BS Twining.  2010.  The impact of biogenic silica detritus and large diatoms on Si-cycling in the euphotic zone of the eastern equatorial Pacific.  Limnol. Oceanogr. 55(6), 2608-2622.

3.  Brzezinski, M, S Baines, F Chai, WM Balch, RC Dugdale, JW Krause, MR Landry, A Marchi, CI Measures, DM Nelson, A Parker, KE Selph, P Strutton, AG Taylor, BS Twining and C Beucher.  2011.  Co-limitation of diatoms by iron and silicic acid in the equatorial Pacific.  Deep-Sea Res. II, 58, 493-492.

4.  Kaupp, LJ, CI Measures, KE Selph, FT Mackenzie.  2011.  The distribution of dissolved Fe and Al in the upper waters of the eastern equatorial Pacific.  Deep-Sea Res. II, 58, 296-310.

5.  Landry, MR, KE Selph, AG Taylor, MR Decima, WM Balch, RR Bidigare.  2011.  Phytoplankton growth, grazing and production balances in the HNLC equatorial Pacific.  Deep-Sea Res. II, 58, 524-535.

6.  Landry, MR, KE Selph, EJ Yang.  2011.  Decoupled phytoplankton growth and microzooplankton grazing in the deep euphotic zone of the HNLC equatorial Pacific.  Marine Ecol. Prog. Ser., 421, 13-24.

 7.  Selph, KE, MR Landry, AG Taylor, EJ Yang, CI Measures, J Yang, MR Stukel, S Christensen, RR Bidigare.  2011.  Spatially-resolved taxon-specific phytoplankton production and grazing dynamics in relation to iron distributions in the Equatorial Pacific between 110 and 140¡W.  Deep-Sea Res. II, 58, 358-377.

8.  Stukel, M, MR Landry, KE Selph.  2011.  Nanoplankton mixotrophy in the eastern equatorial Pacific. Deep-Sea Res. II, 58, 378-386.

9.  Taylor, AG, MR Landry, KE Selph and EJ Yang.  2011. Spatial patterns in    microplankton community structure in the eastern equatorial Pacific.  Deep-Sea Res. II, 58, 342-357.

10. Sevadjian, JC, MA McManus, KJ Benoit-Bird, KE Selph.  2012.  Shoreward advection of phytoplankton and vertical re-distribution of zooplankton by episodic near-bottom water pulses on an insular shelf: Oahu, Hawaii.  Continental Shelf Research. 50-51:1-15

11. Taylor, A.G., R. Goericke, M.R. Landry, KE Selph, D.A. Wick, M. J. Roadman.   2012.  Sharp gradients in phytoplankton community structure across a frontal zone in the California Current Ecosystem.  Journal of Plankton Research, 34(9), 778-789.

12. Hatta, M, CI Measures, KE Selph, M Zhou, JJ Yang, WT Hiscock.  2013.  Iron fluxes from the shelf regions near the South Shetland Islands in the Drake Passage during the austral-winter 2006.  Deep-Sea Research II, 90, 89-101, doi: 10.1016/j.dsr2.2012.11.003

13. Measures, CI, MT Brown, KE Selph, A Apprill, M Zhou.  2013.  The influence of shelf processes in delivering dissolved iron to the HNLC waters of the Drake Passage, Antarctica.  Deep-Sea Research II, 90, 77-88, doi: 10.1016/j.dsr2.2012.11.004

14. Selph, KE, A. Apprill, C.I. Measures, M. Hatta, W.T. Hiscock, M.T. Brown.  2013.  Phytoplankton distributions in the Shackleton Fracture Zone/Elephant Island region of the Drake Passage in February-March 2004.  Deep-Sea Research II, 90, 55-67, 10.1016/j.dsr2.2013.01.030

15. Jiang, M, KA Barbeau, KE Selph, CI Measures, K Buck, F Azam, BG Mitchell, M Zhou.  2013.  The role of organic ligands in the iron cycling and primary productivity in the Antarctic Peninsula: A modeling study.  Deep-Sea Research II, 90, 112-133, 10.1016/j.dsr2.2013.01.029.

16.  Stukel, MR, M Decima, KE Selph, DAA Taniguchi, MR Landry.  2013.  The role of Synechococcus in vertical flux in the Costa Rica upwelling dome.  Progress in Oceanography, 112-113:49-59.

17.  Gutierrez-Rodriguez, A, G Slack, E Daniels, KE Selph, B Palenik, MR Landry. 2014.  Fine spatial structure of genetically distinct picocyanobacterial populations across environmental gradients in the Costa Rica Dome.  Limnology and Oceanography, 59(3):705-723.

18. Taniguchi, DAA, MR Landry, PJS Franks, KE Selph.  2014.  Size-specific growth and grazing rates for picophytoplankton in coastal and oceanic regions of the eastern Pacific.  Marine Ecology Progress Series 509:87-101.

19. Taylor, AG, MR Landry, KE Selph, JJ Wokuluk.  2015.  Temporal and spatial patterns of microbial community biomass and composition in the southern California Current Ecosystem.  Deep-Sea Research II.  112:117-128, doi: 10.1016/j.dsr2.2014.02.006.


2008 and earlier:

Landry, MR, SL Brown, Y Rii, KE Selph, RR Bidigare, EJ Yang, MP Simmons.  2008.  Depth-stratified phytoplankton dynamics in Cyclone Opal, a subtropical mesoscale eddy.  Deep-Sea Research II, 55:1348-1359.

Brown, SL, MR Landry, KE Selph, EJ Yang, YM Rii, RR Bidigare.  2008.  Diatoms in the desert.  Deep-Sea Research II, 55:1321-1333.

Benitez-Nelson, CR and 22 others (inc. KE Selph).  2007.  Mesoscale eddies drive increased silica export in the subtropical Pacific Ocean,  Science 316(5827):1017-1021.

Hopkinson, BM, BG Mitchell, RA Reynolds, H Wang, KE Selph, CI Measures, CD Hewes, O Holm-Hansen, KA Barbeau.  2007.  Iron limitation across chlorophyll gradients in the southern Drake Passage: phytoplankton responses to iron addition and photosynthetic indicators of iron stress.  Limnol. Oceanogr., 52(6):2540-2554.

Selph, KE, J Shacat, and MR Landry.  2005.  Microbial community composition and growth rates in the NW Pacific during spring 2002.  Geochem. Geophys. Geosyst., 6, Q12M05, doi:10.1029/2005GC000983.

Coale, KH and 48 others (including KE Selph).  2004.  Southern Ocean Iron Enrichment Experiment: Carbon Cycling in High- and Low-Si Waters.  Science 304(5669):408-414.

Selph, KE, MR Landry, EA Laws.  2003.  Heterotrophic nanoflagellate enhancement of bacterial growth through nutrient remineralization in chemostat culture.  Aq. Microb. Ecol., 32, 23-37.

Landry, MR, KE Selph, SL Brown, MR Abbott, CI Measures, SM Vink, CB Allen, A Calbet, S Christensen, H Nolla. 2002. Seasonal dynamics of phytoplankton in the Antarctic Polar Front region at 170¡W.  Deep-Sea Res. II, 49, 1843-1865.

Selph, KE, MR Landry, CB Allen, A Calbet, S Christensen, RR Bidigare.  2001.  Microbial community composition and growth dynamics in the Antarctic Polar Front and seasonal ice zone during late spring 1997.  Deep-Sea Res. II, 48, 4059-4080.

Landry, MR, KE Selph, SL Brown, MR Abbott, RM Letelier, S Christensen, RR Bidigare, K Casciotti.  2001.  Initiation of the spring phytoplankton increase in the Antarctic Polar Front Zone at 170¡W.  J. Geophys. Res., 106, 13903-13915.

Landry, MR, H Al-Mutairi, KE Selph, S Christensen, S Nunnery.  2001.  Seasonal patterns of mesozooplankton abundance and biomass at Station ALOHA.  Deep-Sea Res. II, 48, 2037-2061.

Selph, KE.  1999.  Application of Two-Stage Chemostats and Flow Cytometry to Study Marine Nanoflagellate Grazing and Digestion.  Dissertation Abstracts International Part B: Science and Engineering [Diss. Abst. Int. Pt. B - Sci. & Eng.]. Vol. 60, no. 5, p. 2019. Nov.

Dobbs, FC, KE Selph.  1997.  Thermophilic bacterial activity in a deep-sea sediment from the Pacific Ocean.  Aq. Microb. Ecol., 13, 209-212.

Selph, KE, DM Karl, MR Landry.  1993.  Quantification of chemiluminescent DNA probes using the liquid scintillation counter.  Anal. Biochem., 210, 394-401.

Landry, MR, BC Monger, KE Selph.  1993.  Time-dependency of microzooplankton grazing and phytoplankton growth in the subarctic Pacific.  Prog. Oceanog., 32, 205-222.

Landry, MR, J Lehner-Fournier, J Sundstrom, V Fagerness, K Selph.  1991.  Discrimination between living and heat-killed prey by a marine zooflagellate, Paraphysomonas vestita (Stokes).  J. Exp. Mar. Biol. Ecol., 146, 139-151.


Synergystic Activities

High school science fair judge, 1995, 1997, 2001, 2006, 2007, 2009, 2010, 2012, 2014.  Judge of junior and senior poster and research displays.  In 2006, judged senior research display from the private high schools.

School of Ocean, Earth, Sciences and Technology Open House 2002 and 2003, University of Hawaii at Manoa, coordinator for the Oceanography Department exhibits.  This event is geared towards K-12 school children and is open to the general public.  Also participated in this event in 2005, 2007, 2009, 2011, 2013.

Pacific Science Symposium, East-West Center, Honolulu, HI, 2002, 2009, 2010, 2011 (Moderator), 2006, 2007, 2014 (Judge).  This symposium consists of talks given by Pacific Island high school students regarding science projects and/or research they have completed.

Undergraduate Research and Creative Projects Symposium, May 2004, April 2007.  Judge.  This symposium consists of talks and posters given by University of Hawaii undergraduate students as part of their honorÕs thesis requirement.

Aloha Bowl, February 2005, 2006 (Grader), 2008 (Science Judge), 2012 (Moderator).  Teams from high schools compete in answering questions regarding science, particularly topics related to oceanography and geology.  The winning team competes at the national level.

2010 GovernorÕs Awards: Employee of the Year, Manager of the Year, and Team of the Year.  Member of selection committee.

Member, General Education Writing Intensive Focus Board, Fall 2013-2016.



Collaborators & Other Affiliations (last 48 mos.):

Collaborators: A Apprill (WHOI), SB Baines (Stony Brook), WM Balch (Bigelow), K Barbeau (UCSD), CR Benitez-Nelson (U So. Carolina), KJ Benoit-Bird (OSU), MA Brzezinski (UCSB), K Buck (Bermuda BIOS), F Chai (UMaine), RC Dugdale (SFSU), O Holm-Hansen (SIO), BM Hopkinson (Princeton), JW Krause (UCSB), G. Mitchell (UCSD), D. Nelson (OSU), A Parker (SFSU), RA Reynolds (NOAA), P Strutton (U Tasmania), M Stukel (Horn Point), BS Twining (Bigelow), H Wang (Xiamen Univ., China), EJ Yang (KORDI, S. Korea), M Zhou (UMass Boston)

Graduate Advisor/Post-doctoral Sponsor: Michael R. Landry, SIO

Thesis Advisor (member of committee): L. Kaupp, A. Timmerman, M. Jungbluth, M. Chaplin, D. Lingenfelser

Undergraduate Advisor: C. Berger, G. Kolker


Major Program Participation

            SUPER (SUb-arctic Pacific Ecosystem Research), 2 x 30 day cruises,

May and Aug. 1988.

            US JGOFS (Joint Global Ocean Flux Study) Programs:

                        EQPAC (Equatorial Pacific), Benthic leg, 43 day cruise

                        HOT (Hawaii Ocean Time-series), >18 week-long cruises

during the years 1995 to present

                        AESOPS (Antarctic Environment-Southern Ocean Process Study), 2 – 40

day cruises, Nov. – Dec. 1997, Feb. – March 1998.

            JOIS (Joint Ocean-Ice Studies), Arctic Ocean, 16 day cruise, Aug. 1997

            SOFeX (Southern Ocean Iron Fertilization Experiment), Southern Ocean, 45 day

cruise, Jan. – Feb. 2002

            IOC (Intergovernmental Oceanographic Commission), Osaka, Japan to Honolulu,

Hawaii, 35 day cruise, May 2002.


Drake Passage, Punta Arenas, Chile to Palmer Station, Antarctica, ~40 days, Feb-

March 2004 and ~44 days July-August 2006.

EB04 & EB05 (Biocomplexity, Eastern Equatorial Pacific), December 2004, 30 day cruise & September 2005, 30 day cruise, studying Fe and Si dynamics in equatorial phytoplankton populations.

Western Pacific Warm Pool (WP2), January – February 2007, 40 day cruise, studying Prochlorococcus growth, genetics, and population control by grazing.

FLUxes and ZInc Experiments (FLUZIE), Costa Rica Dome, June – July 2010, 35 day cruise from Puntarenas, Costa Rica and return, Chief Scientist: Michael Landry

Ross Sea Expedition, Antarctica, Jan-Feb 2011, 30 day cruise from McMurdo Station, Antarctica and return, Chief Scientists: Josh Kohut and Adam Kustka.