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The effect of environmental origin on the response of marine diatoms to chemical stress 1
Author(s) -
Murphy Lynda S.,
Belastock Rebecca A.
Publication year - 1980
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1980.25.1.0160
Subject(s) - thalassiosira pseudonana , salinity , latitude , pollution , algae , estuary , biology , oceanography , ecology , environmental science , environmental stress , geology , phytoplankton , nutrient , geodesy
Seventeen clones of the marine diatoms Thalassiosira pseudonana and Skeletonema costatum show a wide range of sensitivity to the chemical stress of an industrial waste. Eight clones are of oceanic origin and nine are neritic. Of the neritic clones, three are from heavily polluted estuaries and six from relatively unpolluted waters. There were no correlations with latitude or distance from shore in the oceanic clones nor with temperature regime or salinity in the neritic ones. The three clones from heavily polluted waters were much less sensitive to the waste than were the other neritic clones, which came from relatively clean water. These were slightly less sensitive than were the oceanic clones, but there was considerable overlap in the responses of these two groups. For these 17 clones, a recent history of environmental pollution had at least as much influence on clonal sensitivity to chemical stress as did the long term stability, or lack of it, of the environment from which they were first isolated.