Proceedings of the Technical Expertise in Stock Assessment (TESA) National Workshop on Incorporating an Ecosystem Approach into Single-Species Stock Assessments, 21-25 November 2016, Nanaimo, British Columbia...: Fs97-6/3213E-PDF

“The Technical Expertise in Stock Assessment (TESA) group of Fisheries and Oceans Canada (DFO) held a national workshop on ‘Incorporating an ecosystem approach into single-species stock assessments’, in Nanaimo from 21st to 25th November, 2016. The workshop was chaired by Andrew Edwards and Rowan Haigh from the Pacific Region and Ross Tallman from the Central and Arctic Region. It was attended by 25 DFO participants and four external participants from Norway, the United States and local universities. There was a plenary session with two talks that gave an international overview, followed by 15 shorter talks from DFO participants. For the rest of the week participants worked in three break-out groups. The data-poor group primarily worked with the R package DLMtool (Data-Limited Methods Toolkit) to understand how DLMtool can implicitly incorporate ecosystem information. The data-rich group developed detailed recommendations for conducting a scoping exercise to determine where and how ecosystem factors could be incorporated into the advice-giving process. They also examined two case studies from the Gulf of St. Lawrence. The data-alternative group investigated Empirical Dynamic Modelling (EDM), a novel approach that empirically incorporates interactions among ecosystem variables to predict future populations, without making assumptions about the underlying processes"--Abstract, p. v.

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