Chelsea & Evan Tuohy are marine scientists with research interests in marine protected area effectiveness, aquatic invasive species and fisheries management. Isla Mar Research Expeditions was founded in 2015. They have a combined 30+ years of diving experience and 8 years in developing and leading field courses.



Chelsea Harms-Tuohy, Ph.D.

AAUS Scientific Diver, Field Coordinator, Marketing & App Development

Ph.D.  Marine Sciences & Biological Oceanography   | 2016
University of Puerto Rico, Mayaguez
M.Sc.  Marine Biology | 2011
Florida Institute of Technology
B.Sc.  Marine Biology | 2010
Florida Institute of Technology


Evan Tuohy, Capt.

AAUS Scientific Diver, naui instructor, Licensed Captain, Technical Diver

Ph.D.  Marine Sciences & Biological Oceanography   | Expected 2020
University of Puerto Rico, Mayaguez
B.Sc.  Marine Biology | 2009
Florida Institute of Technology
A.Sc.  Chemical Technology  | 2010
Eastern Florida State College

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Carlos M. Zayas Santiago

ponce, puerto rico

B.Sc. Coastal Marine Biology (2014) - University of Puerto Rico at Humacao
M.Sc. Biological Oceanography (2019) - University of Puerto Rico at Mayaguez

AAUS scientific diver, PADI Rescue Diver
Bioacoustics, spawning aggregations, fisheries biology, conservation and restoration of marine ecosystems


Jaaziel E. Garcia-Hernandez

Guadalajara, Mexico

B.Sc. Marine Science (2012) - University of Hawaii at Hilo
M.Sc. Biology (2017) - University of Puerto Rico at Mayaguez

AAUS scientific diver, NAUI Rescue Diver, IANTD CCR MOD1
Coral reef invertebrate biodiversity with special focus on marine sponges and scleractinian corals.



The Mission

To provide exceptional service in marine science education, field-based research training and experience and public outreach in ocean conservation.

We tailor our scientific education services to undergraduates, early career scientists and citizen scientists (folks who just plain like science!); we provide the training necessary to conduct independent projects and collect quality data. Our goal is to present a field-based research orientation that will equip our students with the skills they need to be competitive in the field of marine science.

In the case of citizen scientists, our goal is to provide you a well-balanced experience of fun and education, sending you home with a wealth of knowledge about the ocean and an incredible experience in the water that you will not find elsewhere!


The Location

Situated in the US Caribbean, Puerto Rico offers a unique learning environment characterized by natural beauty and representative of island biogeography.


The Future

We will continue to grow and expand our services in Puerto Rico and to other neighboring islands. Each year we add a new partnership and we are always engaging in new projects. Watch us grow, and thank you for supporting local and small business!

want to know more?