Mark obtained a Bachelor of Science in 1989, and an MSc in 1993 from the University of AucKland, New Zealand. He worked as a quantitative scientist for the New Zealand Fishing Industry Board for two years before starting his Ph.D at the University of Washington.
Mark continued to contract to the NZ Fishing Industry Board and various US and Canadian agencies through Ray Hilborn (UW), developing bayesian models in ADModelbuider, including the generalised stock assessment model Choleraine, an Integrated Tagging and Catch-at-Age Analysis (ITCAAN) and the sex and length-structured model that was the foundation of the model still used by both Government and Industry scientists to assess the New Zealand rock lobster stocks. He also produced (in collaboration with Hilborn et al. and now modified by Breen et al.) the Department of Conservation (DOC) general marine mammal model that has been used in some form for Hector’s Dolphins, Maui’s dolphins and hooker’s sea lions ).
Mark Joined Trophia in 2000 and has specialised in stock assessments and assessment methodology. Since 1998, Mark has held a permanent position as Senior scientist with the Inter-American Tropical Tuna Commission, developing population dynamics models for assessing tuna stocks, and protected species. Mark continues to teach courses in stock assessment and ADModelBuilder. He is based at La Jolla, California USA.