Pia H. Moisander


2002 Ph.D. University of North Carolina at Chapel Hill

1994 M.S. University of Helsinki, Finland



Associate Professor

Department of Biology

Department of Estuarine and Ocean Sciences

University of Massachusetts Dartmouth
285 Old Westport Road

North Dartmouth, MA 02747-2222

phone: 508-999-8222 

Lab and office: VRAD 209

email: pmoisander at umassd dot edu


In Review:

Meiler S, Britten GL, Dutkiewicz, Jahn O, Gradoville MR, Moisander PH, Follows MJ. Evaluating marine diazotroph biomass distributions using nifH gene abundance observations.

Kamensky KM, Hellum AM, Mukherjee R, Naik AT, Moisander PH. Underwater shear-based grooming of marine biofouling using a non-contact Bernoulli Pad device.

Published or In Press:

57. Palter JB, Ames EJ, Benavides M, Gonçalves A, Granger J, Moisander PH, Watkins-Brandt KS, White AE. In Press. High N2 fixation in and near the Gulf Stream consistent with a circulation control on diazotrophy. Geophysical Research Letters

56. Shoemaker KM, McCliment E, Moisander PH. 2020. Copepod-associated gammaproteobacterial alkaline phosphatases in the North Atlantic Subtropical Gyre. Frontiers in Microbiology DOI: 10.3389/fmicb.2020.01033

55. Nuttall RA, Sharma G, Moisander PH. 2020. Draft genome sequence of Marinobacter hydrocarbonoclasticus NCT7M, obtained from the microbiome of a marine copepod. Microbiology Resource Announcements. 9: e01459-19. https://doi.org/10.1128/MRA01459-19. Genome: https://www.ncbi.nlm.nih.gov/nuccore/WBMP00000000.1/

54. Benavides M, Duhamel S, Van Wambeke F, Shoemaker KM, Moisander PH, Salomon E, Riemann L, Bonnet S. 2020. Dissolved organic matter stimulates N2 fixation and nifH expression of Trichodesmium. FEMS Microbiology Letters DOI: doi.org/10.1093/femsle/fnaa034

53. White AE, Granger J, Selden C, Gradoville MR, Potts L, Bourbonnais A, Fulweiler RW, Knapp

AN, Mohr W, Moisander PH, Tobias CR, Caffin, M, Wilson ST, Benavides M, Bonnet S, Mulholland M, and Chang BX. 2020. A critical review of the 15N2 tracer method to measure diazotrophic production in pelagic ecosystems. Limnology and Oceanography: Methods

DOI: dx.doi.org/10.1002/lom3.10353

52. Moisander PH, Ochiai M. 2020. Draft genome sequence of the non-microcystin-producing Microcystis aeruginosa KLA2, isolated from a freshwater reservoir in Northern California, USA. Microbiology Resource Announcements 9:e01086-19. https://doi.org/10.1128/MRA.01086-19. Genome: https://www.ncbi.nlm.nih.gov/nuccore/VTRR00000000

51. Nuttall RA, Sharma G, Moisander PH. 2019. Draft genome sequence of Vibrio cyclitrophicus NCT10V, cultivated from the microbiome of a marine copepod. Microbiology Resource Announcements 8:e01208-19. Genome: https://www.ncbi.nlm.nih.gov/nuccore/VUKB00000000

50. Shoemaker KM, Duhamel S, Moisander PH. 2019. Copepods promote bacterial community changes in surrounding seawater through farming and nutrient enrichment. Environmental Microbiology 21:3737-3750.  doi: 10.1111/EMI.14723

49. Moisander PH, Shoemaker KM, Daley M, McCliment E, Larkum J, Altabet MA. 2018.     Copepod-associated Gammaproteobacteria respire nitrate in the open ocean surface layers. Frontiers in Microbiology 9:2390 doi: 10.3389/fmicb.2018.02390

48. Benavides M, Shoemaker KM, Moisander PH, Dittmar T, Duhamel S, Van Wambeke F,  Grosso O, Bonnet S. 2018. Aphotic N2 fixation along an oligotrophic to ultraoligotrophic transect in the Western Tropical South Pacific Ocean. Biogeosciences DOI: 10.5194/bg-15-3107-2018

47. Moisander PH, Benavides M, Berman-Frank I, Bonnet S, White A, Riemann L. 2017. Chasing after non-cyanobacterial nitrogen fixation in marine pelagic environments. Frontiers in Microbiology 8:1736 DOI: 10.3389/fmicb.2017.01736

46. Berthelot H, Benavides M, Moisander PH, Grosso O, Bonnet S. 2017. High nitrogen fixation rates in the particulate and dissolved pools in the Western Tropical Pacific. Geophysical Research Letters 44: 8414-8423

45. Shoemaker KM, Moisander PH. 2017. Seasonal variation in the copepod gut microbiome in the subtropical North Atlantic Ocean. Environmental Microbiology 19: 3087-3097

44. Daley MC, Urban-Rich J, Moisander PH. 2016. Bacterial associations with the hydromedusa Nemopsis bachei and scyphomedusa Aurelia aurita from the North Atlantic Ocean. Marine Biology Research 12:1088-1100. DOI 10.1080/17451000.2016.1228974

43. Benavides M, Moisander PH, Daley MC, Bode A, Aristegui J. 2016. Longitudinal variability of diazotrophs in the subtropical North Atlantic Ocean. Journal of Plankton Research 38:662-672

42. Benavides M, Moisander PH, Berthelot H, Dittmar T, Grosso O, Bonnet S. 2015. Mesopelagic heterotrophic N2 fixation related to organic matter composition in the Solomon and Bismarck Seas (Southwest Pacific). PLoS ONE 10(12): e0143775.

41. Moisander PH, Sexton AD, Daley MC. 2015. Stable associations masked by temporal variability in the marine copepod microbiome. PLoS ONE 10(9): e0138967

40. Severin I, Bentzon-Tilia M, Moisander PH, Riemann L. 2015. Nitrogenase expression in estuarine bacterioplankton influenced by organic carbon and availability of oxygen. FEMS Microbiology Letters 326(14): fnv105 

39. Shoemaker KM, Moisander PH. 2015. Microbial diversity in association of copepods in the North Atlantic subtropical gyre. FEMS Microbiology Ecology 91(7): fiv064

38. Scavotto R, Dziallas C, Benzon-Tilia M, Riemann L, Moisander PH. 2015. Microbial community composition in association of copepods in the North Atlantic coastal waters. Environmental Microbiology 17(10): 3754-3765

37. Dabundo R, Lehmann MF, Treibergs L, Tobias CR, Altabet MA, Moisander PH, Granger J. 2014. Contamination of commercial 15N2 gas stocks with 15N-labeled nitrate and ammonium and consequences for N2 fixation measurements. PLoS ONE 9(10): e110335.

36. Moisander PH, Serros T, Paerl RW, Beinart RA, Zehr JP. 2014. Gammaproteobacterial diazotrophs and nifH expression in surface waters of the South Pacific Ocean. The ISME Journal 8: 1962-1973

35. Luo Y-W, Doney SC, Anderson LA, Benavides M, Bode A, Bonnet S, Bostrom K, Bottjer D, Capone DG, Carpenter EJ, Chen YL, Church MJ, Dore JE, Falcon LI, Fernandez A, Foster RA, Furuya K, Kitajima S, Langlois RJ, LaRoche J, Letelier RM, Maranon E, McGillicuddy DJ, Moisander PH, Moore MC, Mourino-Carballido B, Mulholland MR, Needoba JA, Orcutt KM, Poulton AJ, Raimbault P, Rees AP, Riemann L, Shiozaki T, Subramaniam A, Tyrrell T, Turk-Kubo, KA, Varela M, Villareal TA, Webb EA, White AE, Wu J, Zehr JP. 2012. Database of diazotrophs in global ocean: Abundances, biomass and nitrogen fixation rates. Earth System Science Data 4:47-73

34. Mulholland MR, Filippino KC, Bernhardt PW, Blanco J, Mondragon E, Turk K, Moisander PH, Zehr JP. 2012. Rates of dinitrogen fixation and the abundance of diazotrophs in North Atlantic coastal waters between Cape Hatteras and Georges Bank. Limnol Oceanogr 57:1067-1083

33. Moisander PH, Cheshire LA, Braddy J, Calandrino L, Hoffman M, Piehler MF, Paerl HW.2012. Facultative diazotrophy increases competitive strength of Cylindrospermopsis raciborskii under fluctuating nitrogen availability. FEMS Microbiol Ecol 79:800-811

32. Moisander PH, Zhang RF, Boyle EA, Hewson I, Montoya JP, Zehr JP. 2012. Analogous nutrient limitations in unicellular diazotrophs and Prochlorococcus in the South Pacific Ocean. The ISME Journal 6:733-744

31. Bombar D, Moisander PH, Dippner JW, Foster RA, Voss M, Karfield B, Zehr JP. 2011. Distribution of diazotrophic micro-organisms and nifH gene expression in the Mekong River plume during intermonsoon. Mar Ecol Prog Ser 424:39-U55.

30. Moisander PH, Beinart RA, Hewson I, White A, Johnson K, Carlson C, Montoya JM, Zehr JP. 2010. Unicellular cyanobacterial distributions broaden the oceanic N2 fixation domain. Science 327:1512-1514.

29. Moisander PH, Lehman PW, Ochiai M, Corum S. 2009. Diversity of Microcystis aeruginosa in the Klamath River and San Francisco Bay delta, California. Aquat Micr Ecol 57:19-31.

28. Moisander PH, Ochiai M, Lincoff A. 2009. Nutrient limitation of Microcystis aeruginosa in northern California Klamath River reservoirs.  Harmful Algae 8:889-897.

27. Hewson I, Poretsky R, Beinart RA, White A, Shi T, Bench SR, Moisander PH, Paerl RW,Tripp HJ, Montoya JP,, Moran MA and JP Zehr. 2009. In situ transcriptomic analysis of the globally important keystone N2-fixing taxon Crocosphaera watsonii in the Southwest Pacific Ocean. The ISME Journal 3:618-631.

26. Zehr JP, Hewson I, Moisander PH. 2009. Molecular biology techniques and applications for ocean sensing. Ocean Science 5:101-113.

25. Moisander PH, Paerl HW, Zehr JP. 2008. Effects of inorganic nitrogen on taxa-specific cyanobacterial growth and nifH expression in a subtropical estuary. Limnol Oceanogr 53:2519-2432.

24. Piehler MF, Dyble J, Moisander PH, Chapman AD, Hendrickson J, and Paerl HW. 2009. Interactions between nitrogen dynamics and the phytoplankton community in Lake George, Florida, USA. Lake and Reservoir Management 25:1-14.

23. Moisander PH, Beinart RA, Voss M, Zehr JP. 2008. Diversity and abundance of diazotrophs in the South China Sea during intermonsoon.  The ISME Journal 2:954-967.

22. Moisander PH, Paerl HW, Dyble J, Sivonen K. 2007. Phosphorus limitation and diel control in nitrogen-fixing cyanobacteria in the Baltic Sea. Mar Ecol Prog Ser 345:41-50.

21. Hewson I, Moisander PH, Morrison AE, Zehr JP. 2007. Diazotrophic bacterioplankton in a coral reef lagoon: Phylogeny, diel expression, and response to phosphate enrichment.  The ISME Journal 1:78-91.

20. Moisander PH, Morrison AE, Ward BB, Jenkins BD, Zehr JP. 2007. Spatial-temporal variability in diazotroph assemblages in Chesapeake Bay using an oligonucleotide nifH microarray. Environ Microbiol 9:1823-1835.

19. Hewson I, Moisander PH, Achilles, KA, Carlson, CA, Jenkins BD, Mondragon EA, Morrison AE, Zehr JP. 2007. Characteristics of diazotrophs in epi-to abyssopelagic waters of the Sargasso Sea. Aquat Micr Ecol 46:15-30.

18. Sivonen K, Halinen K, Sihvonen L, Koskenniemi K, Sinkko H, Rantasärkkä K, Moisander PH and Lyra C. 2007. Microbiological diversity and function in the Baltic Sea with emphasis on cyanobacteria. Ambio 36 (2-3):180-185.

17. Moisander PH, Shiue L, Steward G, Jenkins BD, Bebout BM, Zehr JP. 2006. Application of a nifH oligonucleotide microarray for profiling diversity of N2-fixing microorganisms in marine microbial mats. Environ Microbiol 8:1721-1735.

16. Moisander PH, Piehler MF, Paerl HW. 2005. Diversity and activity of epiphytic nitrogen-fixers on standing dead stems of the salt marsh grass Spartina alterniflora. Aquat Micr Ecol 39: 271-279.

15. Paerl, HW, Piehler MF, Valdes L, Dyble J, Moisander PH, Pinckney JL, Steppe TF. 2005. Determining anthropogenic and climatically-induced change in aquatic ecosystems using Microbial indicators: An integrative approach. Verh Internat Verein Limnol 29:89-113.

14. Moisander PH, Steppe TF, Hall NS, Kuparinen J, Paerl HW. 2003. Variability in nitrogen     and phosphorus limitation for Baltic Sea phytoplankton during nitrogen-fixing cyanobacterial blooms. Mar Ecol Prog Ser 262:81-95.

13. Paerl HW, Valdes LM, Pinckney JL, Piehler MF, Dyble J Moisander PH. 2003. Microalgae as indicators of estuarine and coastal ecological change. Bioscience 53:953-964.

12. Paerl HW, Dyble J, Moisander PH, Noble RT, Piehler MF, Pinckney JL, Twomey LJ, Valdes LM. 2003. Microbial indicators of aquatic ecosystem change: Current applications to eutrophication studies. FEMS Microbiol Ecol 1561:1-14.

11. Moisander PH, Hench JL, Kononen K, Paerl HW. 2002. Small-scale shear effects on heterocystous cyanobacteria. Limnol Oceanogr 47:109-119.

10. Moisander PH, McClinton E, Paerl HW. 2002. Salinity effects on growth, photosynthetic parameters, and nitrogenase activity in estuarine planktonic cyanobacteria. Micr Ecol 43:432-442.

9. Hietanen S, Moisander PH, Kuparinen J, Tuominen L. 2002. No sign of denitrification in a Baltic Sea cyanobacterial bloom. Mar Ecol Prog Ser 242:73-82.

8. Piehler MF, Dyble J, Moisander PH, Pinckney JL, Paerl HW. 2002. Effects of modified nutrient concentrations and ratios on the structure and function of the native phytoplankton community in the Neuse River Estuary, North Carolina, USA. Aquat Ecol 36:371-385.

7. MacGregor BJ, Van Mooy B, Baker BJ, Mellon M, Moisander PH, Paerl HW, Zehr J, Hollander D, Stahl DA.  2001. Microbiological, molecular biological, and stable isotopic evidence for nitrogen fixation in the open waters of Lake Michigan. Environ Microbiol 3:205-219.

6. Paerl HW, Fulton R, Moisander PH, Dyble J. 2001. Harmful freshwater algal blooms, with an emphasis on cyanobacteria. The Scientific World 1:76-113.

5. Moisander PH, Paerl HW. 2000. Growth, primary productivity, and nitrogen fixation potential of Nodularia spp. (Cyanophyceae) in water from a subtropical estuary in the United States. J Phycol 36:645-658.

4. Kononen K, Huttunen M, Kanoshina I, Laanemets J, Moisander P, Pavelson J. 1999. Horizontal, vertical, and temporal variability of a dinoflagellate-cyanobacterium community in a changing hydrodynamical regime: A case study at the entrance to the Gulf of Finland. Mar Ecol Prog Ser 186:43-57.

3. Moisander P, Kononen K, Rantajärvi E, Huttunen, M. 1997. Phytoplankton community in relation to salinity fronts at the entrance to the Gulf of Finland, Baltic Sea. Ophelia 46:187-203.

2. Lehtimäki J, Moisander P, Sivonen K, Kononen K. 1997. Growth, nitrogen fixation, and nodularin production by two Baltic Sea cyanobacteria. Appl Environ Microbiol 63:1647-1656.

1. Moisander P, Lehtimäki J, Sivonen K, Kononen K. 1996. Comparison of 15N2 and acetylene reduction methods for the measurement of nitrogen fixation by Baltic Sea cyanobacteria. Phycologia 35(6 Suppl):140-146.