Stock assessment in inland fisheries: a foundation for sustainable use and conservation
2016
Lorenzen, K. | Cowx, I. G. | Entsua-Mensah, R. E. M. | Lester, N. P. | Koehn, J. D. | Randall, R. G. | So, N. | Bonar, S. A. | Bunnell, D. B. | Venturelli, P. | Bower, S. D. | Cooke, S. J.
Fisheries stock assessments are essential for science-based fisheries management. Inland fisheries pose challenges, but also provide opportunities for biological assessments that differ from those encountered in large marine fisheries for which many of our assessment methods have been developed. These include the number and diversity of fisheries, high levels of ecological and environmental variation, and relative lack of institutional capacity for assessment. In addition, anthropogenic impacts on habitats, widespread presence of non-native species and the frequent use of enhancement and restoration measures such as stocking affect stock dynamics. This paper outlines various stock assessment and data collection approaches that can be adapted to a wide range of different inland fisheries and management challenges. Although this paper identifies challenges in assessment, it focuses on solutions that are practical, scalable and transferrable. A path forward is suggested in which biological assessment generates some of the critical information needed by fisheries managers to make effective decisions that benefit the resource and stakeholders.
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