Research Document - 2001/031
Status of Atlantic salmon (Salmo salar L.) in Campbellton River, Notre Dame Bay (SFA 4), Newfoundland in 2000
By Downton, P. R., D. G. Reddin and R. W. Johnson
Abstract
The status of Atlantic salmon in Campbellton River in 2000 was determined from the number of salmon counted through a portable fish counting weir (fence) located on the main stem just above head of the tide and from biological data collected at the fence site and from the recreational fishery. One aspect of stock status is defined in comparison of the actual egg deposition to conservation requirements. In 2000, adult returns were 1,798 small and 208 large salmon, which is lower when compared to the average of 3,061 small and 333 large salmon from 1993-99. Historical records indicated that circa.1800, about 12,000 adult salmon were captured at a harvesting weir. The freshwater survival from eggs to smolt for the 1993 to 1995 year classes were 0.69%, 0.71% and 0.51%, respectively and the mean smolt to grilse survival for the years 1993 to 1999 is 4.95%. The percent of the conservation egg requirement achieved for Campbellton River in 2000 was 157% (95th CI=125 to 175). On average, for the period of 1993-2000, Campbellton River achieved 267% of its conservation requirement. Returns to Campbellton River in 2000 were less than 30% of historical adult salmon migrations.
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