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Studies on mountain streams in the English Lake District
Author(s) -
SUTCLIFFE D. W.,
CARRICK T. R.
Publication year - 1973
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1973.tb00077.x
Subject(s) - gammarus pulex , streams , gammarus , environmental science , ecology , hydrology (agriculture) , potassium , amphipoda , chemistry , environmental chemistry , geology , biology , crustacean , computer network , geotechnical engineering , organic chemistry , computer science
Summary Comparisons are made of pH and the concentrations of major ions in streamwater from Brownrigg Well (the source of Whelpside Ghyll) and from the River Duddon. pH in Brownrigg Well is usually >5.7, but the concentrations of sodium, potassium and possibly calcium are near to the minima required to support the amphipod Gammarus pulex. In contrast most insect taxa are not affected by low ionic concentrations. It is postulated that these had a wider distribution in mountain streams prior to the acidification of poorly buffered waters by acid rainfall resulting from large‐scale combustion of fossil fuels.