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Mark Maunder


Mark is head of the stock assessment program at the Inter American Tropical Tuna Commission. He has been involved in the assessment of various species including tunas, flatfish, lobster, crabs, dolphins, sea lions, albatross, marlin, billfish, etc.

Mark is one of the three founding members and former president of the AD Model Builder Foundation, which was the driving fource for the public release of AD Model Builder. Mark is also co-founder of the Center for the Advancement of Population Assessment Methodology (CAPAM).

In collaboration with George Watters, Mark developed the A-SCALA stock assessment model that was used to assess tunas in the EPO for ten years by the IATTC. Mark was also a main developer and lead programmer for the general Bayesian stock assessment model Coleraine. Mark has taught a course in ecological modeling at the Scripps Institution of Oceanography and short courses on stock assessment, AD Model Builder, and ecological modeling. Marks main research interests are in the development of methods for fisheries stock assessment and ecological modeling.

"This perplexing change (from Fmsy as a target to a limit reference point), which is contrary to the traditional management objectives of most fisheries management organizations, has been embraced by many international agreements. The rationale for the change is confusing and vague, and the use of FMSY as a LRP is unreasonable, particularly if the required probability of exceeding the LRP is very low. Certainly there is no disagreement with the goal stated by Sainsbury (2008): “Unacceptable outcomes are strongly based on avoiding irreversible, slowly reversible or long-term impacts of fishing (e.g. from UNCED 1992 and UNFSA 1995), and so there is an emphasis on avoiding recruitment overfishing, stock collapse and excessive depletion of very long-lived organisms”, but FMSY is not related to any of these. The use of FMSY as a LRP should be re-evaluated in the terms of management objectives, overall consistency, stock assessment accuracy, and practicality." Maunder, M.N. and Deriso, R.B. 2014. Proposal for biomass and fishing mortality limit reference points based on reduction in recruitment. IATTC Stock Assessment Report 15: 193-206.

See Marks presentation on data weighting in integrated population models.

Marks Research

Marks Papers by Subject

Marks Papers by Chronological Order

Marks Reports

Marks PhD dissertation on integrating tagging data into stock assessment models

Marks Courses

CAPAM and IATTC Fall workshop series on stock assessment methodology

Created by: admin last modification: Wednesday 13 of July, 2016 [17:57:34 UTC] by admin

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