Science Advisory Report 2013/043
Assessment of Arctic Char (Salvelinus alpinus) in the Sylvia Grinnell River, Nunavut, 2009-2011
Summary
- Data were insufficient to estimate the abundance of Sylvia Grinnell Arctic Char. As a result, a sustainable harvest level could not be determined for the stock. Age data suggests sufficient recruitment is occurring, indicating that the stock is not likely overharvested.
- Based on the current age structure and the estimated age-at-maturity (age 8-9), there are more fish of reproductive age in the population now than in the 1980s. While encouraging, the age structure has not yet returned to that of 1948-1951 when a large portion of the population was between age 12 and 23.
- There are insufficient data to evaluate subsistence and recreational harvests. A current estimate of subsistence harvest is required to fully determine the impact of various harvest methods on the sustainability of the Arctic Char stock.
This Science Advisory Report is from the March 18, 2013 Assessment of Arctic Char in the Sylvia Grinnell River, Nunavut, 2009-2011. Additional publications from this meeting will be posted on the Fisheries and Oceans Canada (DFO) Science Advisory Schedule as they become available.
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