"During the summer of 1972 we sampled the Umpqua River estuary to determine distribution of fish populations. As a part of that study temperature and salinity data were collected monthly throughout the estuary. The environmental data should help explain the distributions of various fishes within the estuary and be useful when comparing information among estuaries. Since the temperature and salinity data are somewhat bulky and presumably valuable to persons not necessarily interested in the results of the biological aspects of the study, the information Is presented here as a separate report." (from the Introduction, p.1)
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