Dr. Jose Reyes-Tomassini | Saint Francis University
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Dr. Jose Reyes-Tomassini

  • Jose Reyes-Tomassini Profile Image

    Position: Assistant Professor of Biology

    Department: Biology

    Email Dr. Jose Reyes-Tomassini

    About Dr. Jose Reyes-Tomassini


    • PhD., August 2009, University of Maryland, College Park, MD. (Marine Estuarine and
      Environmental Sciences).
      Thesis: Neuroendocrine correlates of sex change in the Gilthead seabream, Sparus aurata
    • MS, May 2001, University of Puerto Rico School of Medicine, Medical Science Campus, Rio Piedras, PR. (Physiology).
      Thesis: Effects of Lung Volume on the breathing pattern of the garter snakes, Thammophis sirtalis
    • BS, December 1998, University of Puerto Rico, Rio Piedras, PR. Cum laude (Biology).


    • Teaching Experience
    • Research Experience
    • Professional Service
    • Grants and Fellowships
    • Manuscripts in Peer-Reviewed Journals
    • Other Publications
    Teaching Experience

    Visiting Assistant Professor
    Wartburg College
    Waverly, IA

    • Introductory biology I Lecture and Lab (Fall 2016, Fall 2018)
    • Capstone: Ethics Science Seminar (Fall 2016)
    • Methods of Biological Research (Fall 2016, Winter 2017, Fall 2017, Winter 2018, Fall 2018)
    • Human Anatomy and Physiology (Winter 2017, Winter 2018, Winter 2019)
    • How Animals Work (May 2017, May 2018, May 2019)
    • Mammalian Anatomy and Physiology I (Fall 2017)
    • Teaching Practicum in Biology (Fall 2017)
    • Capstone: Intersection of Race, Ethnicity and Culture in Health Care (Winter 2018, Fall 2018)
    • Living in a Diverse World: Cultural Competency (Winter 2019)
    Research Experience

    Research Fisheries biologist
    NOAA Northwest Fisheries Science Center
    Manchester Research Station
    Manchester, WA

    Part of a research group tasked with developing the techniques to rear and spawn sablefish, Anaplopoma fimbria, in captivity. I wrote software and developed systems to support the mission f our group. Specifically, I designed an automated live-food feeder and the associated interactive software. The system I developed has been in use by the hatchery since 2012. I also o-developed an automated dosage system to green the tanks which has been in use by the hatchery since 2014. I also researched the use of fish odorants and larval fish attractants. As part f another project, I developed AquaTracker, an application for visualization and analysis of acoustic telemetry data.

    Graduate Research Assistant/PhD Student
    Center of Marine Biotechnology
    University of Maryland College Park
    Baltimore, MD

    I studied the role that behavior plays on sex-change in the Gilthead seabream, Sparus aurata, a protandrous fish from the Mediterranean sea. I cloned the gene for the neuropeptide Arginine Vasotocin (AVT) in the Gilthead seabream. I studied the role that behavior plays in sex change in this species. I developed a program that used computer vision to track fish in an arena and I eveloped a program to codify fish behavior from video recordings.

    Graduate Research Assistant/MS Student
    UPR School of Medicine
    Department of Physiology and Biophysics
    Rio Piedras, PR

    I studied the relationship between work of breathing and the control of breathing frequency in the garter snake. I investigated the role that mechanical properties of the lung play in determining ideal breathing frequency on this species.

    Undergraduate Summer Intern
    USDA Forest Service
    Salt Lake City, Utah

    Participated in a paid internship summer program sponsored by the Hispanic Association of Colleges and Universities working at office of the Fish Biologist, USDA Forest Service in Salt ake City, Utah. I surveyed fish and fish habitats at Big Cottonwood Canyon and I surveyed insects using kick sampling at Little Cottonwood Canyon.

    Undergraduate Research Assistant
    Department of Biology
    University of Puerto Rico School of Natural Sciences
    Rio Piedras, PR

    I worked in a project involving the impact of leaf-litter removal and Hurricane damage to the invertebrate fauna in the leaf-litter. I also identified insects and other arthropods found in leaf litter samples to the order level. I assisted in sampling the forest floor for ground-dwelling arthropods using Berlese funnel traps from leaf-litter collected at El Verde Forest Station.

    Professional Service
    • 2019 Wartburg College Research, Internship, and Creative Endeavor Day Organizing
    • 2018-2019 Wartburg College IACUC
    • 2017 Poster judge, IInspire Annual Conference
    • 2016 NWFSC
    • 2015-2016 Member and grant reviewer for the Technical Advisory Board for the Living Marine Resources Cooperative Science Center, University of Maryland Eastern
    • 2015-2016 NWFSC Intranet Committee
    • 2013-2014 NWFSC 4th Science Symposium Organizing Committee
    • 2014 Poster judge, EPP Annual Meeting
    • 2011-2012 NWFSC 3rd Science Symposium Organizing Committee
    • 2010 Invited panelist “Life as a NOAA scientist Post-GSP”. ”. LMRCSC Student
      Weekend at the UMES Sarbanes Coastal Ecology Center, Assateague Island, MD.
    • 2009 Poster judge, SACNAS Annual Meeting
    • 2009 Invited panelist NOAA Fellowships and Scholarships Opportunities SACNAS
      Dallas, TX

    Journal referee: Aquaculture Research, Thalassas: An International Journal of Marine
    Sciences, Journal of Fish Biology

    Other service: Advisor for Wartburg’s Hispanic Student’s Association (SALSA)

    Grants and Fellowships

    2012 NOAA Northwest Fisheries Science Center Internal Grants Program
    Project title: “Effects of prey extract on sablefish”
    Award: $35,000

    2007-2008 NOAA Graduate Science Program Fellowship

    2002-2006 Living Marine Resources Cooperative Science Center Graduate Student

    2001-2002 University of Puerto Rico Presidential Fellowship

    Manuscripts in Peer-Reviewed Journals

    Reyes-Tomassini JJ, Wong TT, and Zohar Y. 2017. Seasonal expression of arginine vasotocin mRNA and its correlation during sex reversal in the Gilthead seabream (Sparus aurata). Fish Physiology and Biochemistry 43 (3): 823-832.

    Lee JSF, Poretsky RS, Cook M, Reyes-Tomassini JJ, Goetz R, and Berejikian B. 2017 DMSP
    increases survival of larval sablefish (Anoplopoma fimbria). Journal of Chemical Ecology 42 (6): 533-536.

    Reyes-Tomassini JJ, Wong TT, and Zohar Y. (2013) GnRH isoforms expression in relation to
    the gonadal cycle and to dominance rank in the Gilthead seabream, Sparus aurata. Fish
    Physiology and Biochemistry 39 (4): 993-1005

    Moore ME, Goetz FA, Van Doornik DM, Tezak EP, Quinn TP, Reyes-Tomassini JJ and
    Berejikian BA. (2010) Early Marine Migration Patterns of Wild Coastal Cutthroat Trout
    (Oncorhynchus clarki clarki), Steelhead Trout (Oncorhynchus mykiss), and Their Hybrids. PLOS ONE 5 (9)

    Reyes-Tomassini JJ and Zohar Y. (2006) AquaObserver: A tool for the analysis of dominance hierarchies and color changing behavior in fish. NOAA/EPP Education and Science Forum, City University of New York, New York, NY.

    Other Publications

    Reyes-Tomassini JJ. (2018). Using a computer simulation to teach undergraduate students the principles behind GFR autoregulation. Kidney News 10 (6): 21.

    Reyes-Tomassini, JJ. (2009) Neuroendocrine correlates of sex change in the Gilthead seabream, Sparus aurata. Thesis.


    Reyes-Tomassini JJ. In preparation. The effects of Artemia extracts on the behavior of  larval and juvenile sablefish (Anoplopoma fimbria).

    Reyes-Tomassini JJ, Even L*, Evans L*, Meyer B*, and Rys J*. In preparation. AquiS-20E as a sedative for Clownfish (Amphiprion ocellaris) in comparison to MS-222.

    Reyes-Tomassini JJ. In Review. AquaTracker. Submitted to The Journal of Open Source