PhD, Zoology
Thesis Topic

Using bottom longlines in the assessment of long-lived, demersal reef species: a case study of British Columbia inshore rockfish

Supervisor(s) Name(s)
Dr. Murdoch McAllister
Nationality
Canada
Biography

Shannon’s PhD research focuses on the use of count data from bottom longlines in the assessment of inshore rockfish (long-lived, slow-growing, relatively sedentary fish). She is using video data to study the behaviour and capture of rockfish and their competitors and is applying it to test the assumptions of models traditionally used to estimate abundance.

Prior to joining the Fisheries Centre, she completed her Masters with Dr. George Rose (Fisheries Conservation Group) at Memorial University of Newfoundland. She investigated the persistence of changes in Grand Banks capelin (Mallotus villosus) abundance, behaviour, growth and condition that followed the cold period of the early 1990s and the collapse of the northern Atlantic cod (Gadus morhua). A shift in spring consumption of euphausiids by Grand Banks capelin, when compared to other regions and historically, appears to have limited capelin recovery.  Following this degree, she was employed as a Biologist for Fisheries and Oceans Canada, working with the Inshore Rockfish Program, Groundfish Section, at the Pacific Biological Station in Nanaimo, BC.

Awards
NSERC Postgraduate Scholarship – Doctoral
Zoology Graduate Travel Award
Let’s Talk Science National Post-Secondary Volunteer Award, Honourable Mention
Publications
  • Obradovich, S. G., Carruthers, E. H., and Rose, G. A. 2014. Bottom-up limits to Newfoundland capelin (Mallotus villosus) rebuilding: the euphausiid hypothesis. ICES Journal of Marine Science, 71(4): 775-783.
  •  Yamanaka, K. L., McAllister, M. K., Olesiuk, P.F., Etienne, M. -P., Obradovich, S. G., and Haigh, R. 2012. Stock assessment for the inside population of yelloweye rockfish (Sebastes ruberrimus) in British Columbia, Canada for 2010. Canadian Science Advisory Secretariat, Research Document 2011/129.
  • Obradovich, S.G., Yamanaka, K.L., Cooke, K., Lacko, L.C., and Dykstra, C. 2008. Summary of non-halibut catch from the Standardized Stock Assessment Survey conducted by the International Pacific Halibut Commission in British Columbia from June 4 to July 7, 2007. Can. Tech. Rep. Fish. Aquat. Sci. 2807: x + 83 p.
  • Yamanaka, K.L., Obradovich, S.G., Cooke, K., Lacko, L.C., and Dykstra, C. 2008. Summary of non-halibut catch from the Standardized Stock Assessment Survey conducted by the International Pacific Halibut Commission in British Columbia from May 29 to July 22, 2006. Can. Tech. Rep. Fish. Aquat. Sci. 2796: viii + 58 p.
  • Hansen, L. M., Obradovich, S., Mouniargi, J. & Farrell, A. P. 2006. The role of adrenergic stimulation in maintaining maximum cardiac performance in rainbow trout (Oncorhynchus mykiss) during hypoxia, hyperkalemia and acidosis at 10C. Journal of Experimental Biology. 209: 2442-2451.