Ecosystems — David Herasimtschuk

Pacific Lamprey

Herasimtschuk, David - Filmmaker - DCEFF

An Amphibian Only a Mother (or Biologist) Could Love Needs your Attention

Protecting Salmon Strongholds, Slowing Climate Change - Wild Salmon Center

MSP Film Society - Freshwater Presents - UPRIVER: A Watershed Film

Film — David Herasimtschuk

Ecosystems — David Herasimtschuk

Upper panel: Adult Pacific Lamprey Entosphenus tridentatus on spawning

Photography — David Herasimtschuk

Food Web Dynamics Influence Mercury Movement in Grand Canyon

David Herasimtschuk on Instagram: Bristol Bay and the sockeye that pulse throughout its watershed represent one of the last intact healthy salmon environments on the planet. This year alone the bay's ecosystem

Ecosystems — David Herasimtschuk

Wildlife Photographer of the Year: a freshwater perspective