Proceedings 2021/045

Proceedings of the Pacific regional peer review of the evaluation and update of biologically-based targets for enhanced contributions to Chinook populations; August 31-September 1, 2017

Chairperson: Lesley MacDougall

Editors: Steven Schut and Lesley MacDougall

Summary

These Proceedings summarize the relevant discussions and key conclusions that resulted from a Fisheries and Oceans Canada (DFO), Canadian Science Advisory Secretariat (CSAS) Regional Peer Review meeting of Aug 31-Sept 1, 2017 at the Pacific Biological Station in Nanaimo, B.C.

DFO’s Pacific Region Salmonid Enhancement Program (SEP) has long standing enhancement guidelines for hatchery program that integrate multiple biological and socioeconomic objectives. Key policy and scientific advancements have been made since the implementation of the existing enhancement guidelines. The purpose of this peer review process is to provide science based advice on genetically based targets for enhanced contributions to Chinook Salmon populations that reflects new Canadian policy, new genetic information, assessment tools, and measurement metrics for the genetic effects of hatchery rearing and enhancement on wild fish.

A working paper on genetically based targets for enhanced contributions to Canadian Pacific Chinook salmon populations was presented for peer review. The regional peer review included the following discussions following presentation of the paper: context, appropriateness of Proportionate Natural Influence (PNI) and the model presented, chosen model parameters, and subsequent sensitivity analyses. The discussion was varied, and often focused on the implementation implications of the recommendations, and how the advice should address this. These implementation considerations were deemed out of the scope of the advice being requested. The general consensus is that the use of PNI and the modelling effort were appropriately matched to the objectives stated in the terms of reference, and the paper was accepted as written with very minor changes. Future work was discussed such as categorizing current hatcheries using PNI.

In-person and web-based participation included Fisheries and Oceans Canada (DFO) Staff from Science, Ecosystem Management and Fisheries Management sectors; and external participants from NOAA, First Nations, non-governmental organizations, and recreational fishing interests.

The Research Document and Proceedings will be made publicly available on the Canadian Science Advisory Secretariat website.

Proceedings 2021/045 (PDF, 494s KB)

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