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PHYSICAL PROCESSES AND EUTROPHICATION 1
Author(s) -
Haffner G. D.,
Poulton D. J.,
Kohli B.
Publication year - 1982
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1982.tb00012.x
Subject(s) - eutrophication , phytoplankton , environmental science , nutrient , trophic level , flushing , harbour , residence time (fluid dynamics) , hydrology (agriculture) , ecology , oceanography , biology , geology , geotechnical engineering , computer science , programming language , endocrinology
Biological responses to physical‐chemical processes were examined in Toronto and Hamilton Harbours of Lake Ontario. Nutrient loadings to the harbors are large and are of similar magnitude, yet the trophic conditions of the harbors were considerably different. Lake oscillations were found to determine the flushing rates and environmental stability of the harbors. LOW residence times (<10 days) resulted in homogenous chemical conditions in Toronto Harbour, and prevented the establishment of large phytoplankton crops. The longer retention time of Hamilton Harbour permitted the establishment of huger phytoplankton crops. There probably exists a critical retention time where nutrient input events persist for a sufficient period of time for the algal community to adapt to and exploit the environmental conditions of nearshore areas.