International workshop on advancing methods to overcome challenges associated with life history and stock assessments of data-poor deep-water snappers and groupers

Most fisheries for deep-water snappers, groupers and other demersal fishes in many countries and territories throughout the Indo-Pacific are data-poor and/or resource-poor. Current and emerging methods for obtaining important information on life history, ecological assessments, and stock assessments...

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Bibliographic Details
Main Authors: Newman, Stephen, Wakefield, Corey, Williams, A., O'Malley, J., Taylor, B., Nicol, S., Nichols, R., Hesp, S., Hall, N., Hill, N., Ong, J., Andrews, A., Wellington, Claire Margaret, Harvey, Euan, Mous, P., Oyafuso, Z., Pardee, C., Bunce, Michael, Di Battista, Joseph, Moore, B.
Format: Journal Article
Published: Pergamon 2017
Online Access:http://hdl.handle.net/20.500.11937/51427
Description
Summary:Most fisheries for deep-water snappers, groupers and other demersal fishes in many countries and territories throughout the Indo-Pacific are data-poor and/or resource-poor. Current and emerging methods for obtaining important information on life history, ecological assessments, and stock assessments for these deep-water species were discussed at an international workshop in Perth, Western Australia in July 2016. The key issues raised included: (i) the ongoing need to adopt nascent methods for otolith sectioning and interpretation; (ii) the need for standardised international ageing protocols to be documented; (iii) the benefits of investigating otolith chronologies both for age validation and the influence of climate variability on fish populations; (iv) a need to investigate the ecological niches and requirements for deep-water fishes; (v) improved understanding of genetic stock structure/connectivity, diet and gene flow across a range of spatial scales; (vi) the need for an improved understanding of the performance and uncertainty associated with length- and age-based catch curves and spawning potential ratio stock assessments; and (vii) the issues and challenges in developing harvest strategies for deep-water data, and/or resource poor resources. Many new or refined strategic directions for further investigation were identified to resolve uncertainty in monitoring and assessment approaches to contribute toward more rigorous fisheries management arrangements.