Acknowledgements
We thank one anonymous reviewer and Alexandra Tyers for their insightful readings and constructive suggestions. Déline Renewable Resources Council, Déline Lands and Finance Corporation, the community of Déline, DFO in Hay River, and the Department of Environment and Natural Resources in Déline provided valuable help with field planning and logistics. We especially thank J. Chavarie, S. Buckley, L. Harris, G. Lafferty, M. Lindsey, M. Low, Z. Martin, S. Wiley, and C. Yukon, who helped lead sampling teams and coordinate logistics. The following individuals who helped conduct field sampling in various years are gratefully acknowledeged: J. Baptiste, D. Betsidea, D. Baton, L. Dueck, R. Eshenroder, G. Menacho, N. Modeste, I. Neyelle, L. Neyelle, M. Smirle, A. Swietzer, C. Takazo, A. Vital, F. Vital, B. Yukon, M. Yukon, T. Yukon and Charity, Cameron, and Cyre Yukon. D. Phillibert, K. Laubriat, S. Thacker, and K. Theoret conducted isotopic lab work.

Declarations:

Authors’ contributions

LC, KH, WT, CK, and AM conceived and funded the study. LC and CG carried out the field work. LC, CG, LH, and MH participated in the data analyses. LC wrote the manuscript. All authors read and approved the final manuscript.