Mark TrevorrowbackResearcher Profile

Mark V. Trevorrow

Job Title: Research Scientist
Employer: Fisheries and Oceans Canada, Institute of Ocean Sciences
Place of Birth: Vancouver, BC, Canada
High School attended: Chilliwack Junior/Senior Secondary, Chilliwack, B.C.; United World College of the Atlantic, Wales, UK
Further Education: Queen's University (B.Sc.), University of Miami (Ph.D.).
Geographic focus of research: British Columbia, New Brunswick, Nova Scotia, Japan, Denmark

Brief synopsis of current research:
We develop new sonar techniques for detecting and surveying fish and zooplankton in rivers, lakes, and shallow coastal areas. In one project we were able to detect migratory salmon in the Strait of Georgia at horizontal distances up to 7.5 km. We have also developed sonars for detection of herring schools in shallow waters (<12 m deep) which we have tested in the Gulf of St. Lawrence and near Copenhagen, Denmark.


Recent Publications:

Farmer, D., M. Trevorrow, and B. Pedersen, 1999. Intermediate range fish detection with a 12kHz sidescan sonar, J. Acoust. Soc. Am. 106(5), 2481-2490. Pedersen, B., and M. Trevorrow, 1999. Continuous monitoring of fish in a shallow channel using a fixed horizontal sonar, J. Acoust. Soc. Am. 105(6), 3126-3135.

Trevorrow, M., and R. Claytor, 1998. Detection of Atlantic herring (Clupea harengus) schools in shallow waters using high-frequency sidescan sonars, Can. J. Fish. Aquat. Sci. 55(6), 1419-1429.

Trevorrow, M., 1997. Detection of migratory salmon in the Fraser River using 100kHz sidescan sonars, Can. J. Fish. Aquat. Sci. 54, 1619-1629.

Trevorrow, M., and Y. Tanaka, 1997. Acoustic and in-situ measurements of freshwater amphipods (Jesogammarus annandalei) in Lake Biwa, Japan, Limnol. Oceanogr. 42(1), 121-132.

I began a career as an oceanographer because I feel that properly understanding the ocean is very important to our world and to Canada. Many aspects of Canadian life revolve around the oceans and our exploitation of its fish and zooplankton resources. However, as recent declines in fish stocks demonstrate, we must consider these resources as finite and do our best to manage these resources. Even now, our understanding of the oceans and marine life is limited, and I am motivated to develop new tools to help learn more about the oceans.