Hannes Baumann (PI)

Hannes Baumann

Hannes Baumann started the ‘Evolutionary Fish Ecology’ Lab in September 2014 to expand ecological and evolutionary frontiers via experimental, field, and modeling work. His work focuses on the central question, how coastal marine organisms will cope with the simultaneous changes in their environment caused by global and regional human activity, and how they are already adapted to environmental variability in e.g. temperature, oxygen, or pH.

Local field work includes maintaining deployed sensors, frequent collections with plankton nets and beach seines, in addition to laboratory rearing of fish, physiological measurements, and otolith microstructure analysis – all of which can incorporate the help of interested and ambitious undergraduate students searching for hands-on experience and own projects.

Current grants:

  • 2016 – Baumann, H., Wiley, D. Kaufman, L., Valentine, P., and Gallager, S. Sensitivity of larval and juvenile sand lance Ammodytes dubius on Stellwagen Bank to predicted ocean warming, acidification, and deoxygenation. Northeast Regional SeaGrant Consortium ($198,393 2 years)
  • 2016 – Dam, H., Baumann, H., Finiguerra, M., and Pespeni, M. Collaborative Research: Transgenerational phenotypic and genomic responses of marine copepods to the interactive effects of temperature and CO2. NSF-OCE #1550180 ($609,684 3 years)
  • 2016 – Baumann, H. and Nye, J. Collaborative research: Understanding the effects of acidification and hypoxia within and across generations in a coastal marine fish. NSF Project# 1536336 ($829,035 3 years)
  • Dam, H., Finiguerra, M., and Baumann, H. – 2016. Predicting the performance of the copepod Acartia tonsa under future conditions of temperature and CO2. Connecticut Sea Grant College Program ($149,969 2 years).
  • Baumann, H. and Rader, L – 2016. Lifting a treasure: Full digitization of Project Oceanology’s 40+ years of coastal research data in Long Island Sound. Connecticut Sea Grant Project# PD-15-14 ($5,000).

Publications | Courses | Marine Science Department | Google Scholar | CV | Collaborators & Co-authors | Publons Reviewer Profile

Emma Cross (Post-doctoral researcher)


Emma Cross joined our team in September 2017, after receiving her PhD from Cambridge University, UK, in August 2016. Her previous work focused on the CO2-sensitivity of polar and temperate brachiopods, a group of ancient, sessile calcifiers that build large shells but are unrelated to mollusks. In addition to experimental approaches, she examined historical collections of specimens from New Zealand. Her findings suggest that brachiopods can cope with acidifying oceans by compensating for increased shell dissolution by increased shell thickness. Emma now transitions to working with fish, particularly Atlantic silversides, testing how fluctuating pH and oxygen environments typical of nearshore environments affect early life survival and growth.

Two recent publications of Emma:

[ocean acidification, hypoxia, Atlantic silverside, nearshore pH and oxygen fluctuations, transgenerational effects, climate change] | Emma Cross citations

Chris Murray (PhD student)


Christopher Murray started his PhD at UConn/Avery Point in September 2014, after finishing his MS in May 2014 at Stony Brook University, NY. While building on his experience in ocean acidification research, for his PhD he is now interested in studying multi-stressor effects of OA and hypoxia on coastal marine fishes. He has been instrumental in designing and building a state-of-the-art experimental unit that allows rearing of fish early life stages under static and fluctuating conditions of factorial CO2, O2, and temperature combinations.

[ocean acidification, hypoxia, Atlantic silverside, sand lance, transgenerational effects, climate change] | Chris’ website

Jacob Snyder (MS student)


Jacob Snyder started as a M.S. graduate student at UConn/Avery Point in September 2015. Before coming to our lab, Jake did his Bachelor degree at the University of Maine and worked for over two years as an instructor at Project Oceanology, all of which made him enthusiastic and determined to pursue a degree in marine science. Apart from working experimentally, one of his projects will involve digitizing and analysing the long-term dataset of Project Oceanology.

[ocean acidification, hypoxia, Atlantic silverside, climate change, long-term data set, Long Island Sound] | Jake’s website

Julie Pringle (MS student)

Julie Pringle started her MS in the Baumann lab in September 2016. Prior to coming to Avery Point, Julie graduated Tufts University in 2014 and was a technician in a larval fish ecology lab at Woods Hole Oceanographic Institution. At WHOI, she studied the trophodynamics of small pelagic fishes in the Western Atlantic. She will continue to work with forage fishes as a graduate student, investigating the growth and selective survival in Atlantic silversides (Menidia menidia) collected in Mumford Cove.

[Atlantic silverside, climate change, Mumford Cove, otolith microstructure analysis, growth, selective survival]

James Harrington (technician)

James Harrington  joined the team in May 2017 to help with our various endeavors rearing fish in the Rankin Lab. He is currently maintaining population crosses of Atlantic silversides from different locations along the Atlantic Coast, which together with our colleagues from Cornell will facilitate describing and annotating the genome of this species. He is also helping with our biweekly beach seine surveys, assisting Chris with large factorial CO2 x O2 experiments on Atlantic silverside offspring, and has lent a hand to our REU student Elle with her summer work.

[Atlantic silverside, genome, Mumford Cove, RNA, growth]

Elle Parks (NSF REU student)

Elle Parks  joined our lab from June to August 2017 as the first REU (Research Experience for Undergraduates) student on a recently funded NSF REU project in collaboration with Mystic Aquarium. She is a Junior at the University of Connecticut in Storrs and interested in aspects of marine conservation and effects of climate change. Her project looked at the presumed metabolic costs of high CO2 environments on fish larvae.

[Atlantic silverside, ocean acidification, starvation, costs]

Undergraduate volunteers, summer students

Isaiah Mayo (spring 2017)
Charles Dyke (summer 2017)
Rainer Moy-Huwyler (fall 2016 – spring 2017)
Rafeed Hussain (summer, fall 2016)
James Harrington (fall 2016 – spring 2017)
Tyler Clouthier (fall 2016 – spring 2017)
Elizabeth Karamavros (summer 2015 – summer 2016)
Brittany Besaw (summer 2016)
Wes Huffman (summer 2015 – summer 2016)
Megan Barry (fall 2015 – summer 2016)
Molly Hughes (summer 2015, read her blog)