thalássia – greek definition 'of the sea'

Thalassia Environmental is a marine consulting and underwater services company founded by Markus Thompson (MSc. RPBio.) – a marine environmental practitioner with 10 years of professional experience in biological consulting, commercial and scientific diving, and marine research. Thalassia is located on Quadra Island, providing professional services to clients throughout coastal British Columbia. 

Scientific Diving


Marine habitat and species assessments, substrate mapping, underwater, surface, and aerial video and photography.

Environmental Consulting


Permitting strategy, environmental assessment preparation, habitat design, and technical support for marine projects.

Marine Research


Design and implementation of marine ecology and fisheries related surveys and experiments. Scientific data and sample collection.