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Environmental Assessment series

From 1970 on, Derek Ellis directed his work and that of his graduate students to environmental assessments of the seabed, particularly to environmental impact on biodiversity, and recovery from that impact. In the 1980s and 1990s he concentrated his research on the effects of mining wastes on the biodiversity of the seabed, and to the impact of a boat-paint toxin, tributyltin (TBT).

Underwater Photography of Salmon series

From 1959 to 1963 Dr. Derek Ellis conducted the first underwater observations by SCUBA diving on salmon activities. He dived in fishways, under waterfalls, in rapids, canyons, and in smooth water - both alongshore and in open water - to document how the activities of the salmon were adapted to the various river and lake habitats in which they found themselves during their life cycle. His observations spanned the age range of salmon from fry, through smolts to adults. At that time the emphasis on underwater photography was in the sea. Dr. Ellis used early SCUBA gear, and was introduced to diving by brothers Alex and Laurie McCracken, of Nanaimo, two of the first professional SCUBA divers on the west coast of Canada. He was employed by the Fisheries Research Board of Canada 1957-1963, who purchased his equipment and paid for his dive training at the Scripps Institute of Oceanography, La Jolla, California, January 1959.

Dr. EIlis was the first Canadian biologist to use SCUBA techniques for ecological and behavioural studies of aquatic organisms, and after developing the observation and photographic techniques extended his salmon research in rivers and lakes to marine invertebrates of the BC coast. His research on the technical developments and his biological results were published in international scientific journals and government reports. His results essentially were that salmon follow environmentally defined pathways through river and lake habitats, hence their migrations through difficult river sections can be expedited by appropriate fishway design. Ellis's underwater photographs were taken by Rolleimarin Camera, with flash when needed. His 16 mm movies were taken by several different rented cameras. Dr. Ellis's work reflects the state of the art in underwater research and photography at the time. Some of his photographs were exhibited in the International Underwater Film Festivals during those years. Also, some of the cine footage was used by the National Film Board in their salmon documentaries.

Arctic Research Series

During his graudate education at McGill University, Derek Ellis made four expeditions to the Arctic to study biodiversity assessment of arctic benthos for his doctoral.

The series consists of correspondence, field notes, manuscripts and publications, slides, photographs and maps.

Inventory available.

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