The carcasses of four gray whales have been found around the San Francisco Bay Area in eight days -- an alarming string of deaths that constitutes an unusual mortality event, defined by the National Oceanic and Atmospheric Administration (NOAA) as a significant die-off of a marine species.
Major sea lice epidemics have erupted on Atlantic salmon fish farms on Vancouver Island’s west coast over the last three months, according to industry, Fisheries and Oceans Canada and independent reports.
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