New research has revealed how underwater noise produced by humans may help explain why southern resident orca populations have not recovered from historic lows. The team reports that underwater noise pollution -- from both large and small vessels -- forces northern and southern resident orcas to expend more time and energy hunting for fish.
Due to humans, Salish Sea waters are too noisy for resident orcas to hunt successfully." ScienceDaily. ScienceDaily, 10 September 2024. <www.sciencedaily.comUniversity of Washington. . Due to humans, Salish Sea waters are too noisy for resident orcas to hunt successfully.
A new study has confirmed a long-held assumption: that orcas take just one breath between dives. The researchers used drone footage and biological data from tags suction-cupped to 11 northern and ... In the Pacific Northwest and British Columbia, southern resident orcas have experienced no net population growth since the 1970s, with just 73 left at the most recent count. But northern resident ...
Not all Chinook salmon are created equal, and this has a major impact on the energetics for southern resident killer whales. A recent study quantified the lipid content in Fraser River Chinook ... Reducing ship speed and noise levels would increase the probability that endangered West Coast southern resident killer whales will spend more time hunting for Chinook salmon, a new study has ...FOSSILS & RUINSWhat a Submerged Ancient Bridge Discovered in a Spanish Cave Reveals About Early Human Settlement
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