Honors Theses (Biology)

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The subtidal Bryozoan fauna off Cape Arago, Oregon
(2013-05) Cottrell, Dylan
The subtidal marine biodiversity off the Oregon coast is poorly studied and not well understood. The few subtidal studies in Oregon have focused on vertebrates with little regard to invertebrate assemblages. Oregon’s subtidal Bryozoa play key roles in these assemblages by providing habitat, food, and, potentially, pollution sequestration. Using dredge samples collected over two years, we assembled a comprehensive list of Bryozoa found between 30-60 m depth off Cape Arago, Oregon. A total of 41 species were collected, including one new species in the genus Fenestruloides. Although 25 families were represented in our samples, 17 (68%) families were only represented by one species and only two families (8%) were represented by more than three species. This data provides the first comprehensive survey of Oregon’s subtidal bryozoan biodiversity and is an important first step in understanding the region’s biodiversity.