Heather Cronin , Arctic, bioluminescence, zooplankton, visual ecology
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Heather Cronin


Master's student of Marine Biosciences.

Advisors: Dr. Cohen, Dr. Moline
Thesis: Describing bioluminescent communities and their contribution to the pelagic light field in the Arctic polar night.

My thesis focuses on the ecology of zooplankton in Kongsfjord, an Arctic fjord at 79°N in Spitsbergen, Svalbard. Working with an international group of marine scientists and students as a part of the AB334 and AB320 courses at the University Centre in Svalbard, I study the pelagic bioluminescent community and its significance for vision by Arctic zooplankton during the polar night. I use an Underwater Bioluminescence Assessment Tool (UBAT) to describe the composition and distribution of the bioluminescent community based on taxon-specific flash kinetics, and the potential for bioluminescence created by this community to be used for perception by the krill, Thysanoessa inermis. For more information on my project and other projects in the Arctic winter, please see the “Pelagic ecology in the high Arctic winter” page in the projects tab beloW. 

R/V Helmer Hanssen           UNIS_resized

Background:Before starting at the University of Delaware, I graduated with honors from Colby College where I majored in biology and classical civilizations. I also interned at the New England Aquarium during the summer of 2011 in their Wet Lab and Edge of the Sea exhibit and completed an REU in plant pathology at Cornell University, New York State Agricultural Experiment Station under Dr. Thomas Burr.

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Pelagic ecology in the high Arctic winter

Graduate student Heather Cronin in Svalbard


• Marine Ecology• Physiological Ecology


CEOE School & Departments

School of Marine Science & Policy

Advancing the understanding, stewardship, and conservation of estuarine, coastal, and ocean environments.

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Department of Geological Sciences

Discovering how geological processes have operated over various time scales to create and influence the planet’s surface environments.

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Department of Geography

Investigating the interactions between people and the environment and the processes that explain the location of human and natural phenomena.

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College of Earth, Ocean, and Environment • 111 Robinson Hall • Newark, DE 19716 • USA
Phone: 302-831-2841 • E-mail: ceoe-info@udel.edu

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