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UrduBy analyzing 42 years worth of canned salmon, University of Washington scientists show that levels a common marine parasite rose in two salmon species in the Gulf of Alaska from 1979 to 2021. The rise may be a sign of ecosystem recovery, possibly influenced by the 1972 Marine Mammal Protection Act.
Tag: marine food webs
19th Century ‘dinner plate’ still useful in ocean science
A Secchi disk – historically called a “dinner plate” by sailors – is used in the open ocean to measure concentrations of microscopic algae called phytoplankton.