Oceanography Professor Co-authors Research

Albatross and albatross chick

With colleagues from the Monterey Bay Aquarium and the Bishop Museum, David Hyrenbach, Ph.D., associate professor of Oceanography, has co-authored a paper, analyzing a data set of feathers from North Pacific seabirds to study marine ecosystem trends over 13 decades (1890s to 2010s). Trophic position declined in five of eight species sampled, indicating a long-term shift from higher–trophic level to lower–trophic level prey. These results show that Hawaiian seabirds track the changing pelagic food webs of the North Pacific. Read more here in Science Advances, Vol 4, No 2, February 2018.