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B.C. southern resident orca census counts 76 in 2nd year population growth
The Center for Whale Research said four calves were born, but only two survived, as the endangered population remains far below historical levels.
The Washington-based Center for Whale Research reported 76 living southern resident killer whales as of July 1, marking an increase of two individuals over last year's count of 74.
Historical counts suggest the population once exceeded 100 individuals before declining; the Center notes that previous periods of growth were often followed by longer declines.
On Oct. 3, female J31, also known as Tsuchi, was observed carrying a dead calf near Sombrio Point in the Strait of Juan de Fuca, underscoring reproduction challenges.
During the census period, four calves were born, with only two surviving; Calves K47 and L130 both appear to be in normal health.
Research director Michael Weiss says addressing noise, pollutants, and the lack of fatty chinook salmon is crucial to sustaining gains, requiring habitat restoration and improved fisheries management.