Showing papers on "Water column published in 1968"
TL;DR: In this paper, the authors measured the concentration of radon gas in near bottom water and used it to estimate the rate of vertical mixing in the deep sea, assuming that vertical mixing is accomplished by eddy diffusion results from 9 profiles widely distributed over the world ocean.
68 citations
TL;DR: An oligotrophic and a eutrophic lake in Alberta were comparatively investigated for 14 months to elucidate relationships between the physicochemical environment and the species composition, seasonal succession, vertical distribution, and seasonal cycles of their phytoplankton.
Abstract: An oligotrophic and a eutrophic lake in Alberta were comparatively investigated for 14 months to elucidate relationships between the physicochemical environment and the species composition, seasonal succession, vertical distribution, and seasonal cycles of their phytoplankton. One hundred and seven algal species were found in Muir Lake and 63 species in Hastings Lake. Increases in the numbers of Anabaena flos-aquae accompanied decreases in the numbers of several green algae, viz Pediastrum and Scenedesmus spp., suggesting antagonistic effects. Three groups of vertical distribution patterns of phytoplankton occurred in both lakes: buoyant and some motile forms accumulated at or near the surface, a second group was more or less uniformly dispersed throughout the water column, and a third group occurred only in bottom waters. Intermittent species were classed as either stenochronic or eurychronic, depending on the length of their pulses. In Muir Lake, Asterionella formosa was inversely correlated with silica...
33 citations
01 Jan 1968
TL;DR: Linsley Pond, a small body of water, 14 m deep located in North Branford, Connecticut, has been the subject of investigation for some 30 years as discussed by the authors, with the idea in mind of making as complete a geochemical study as possible of all detectable elements in the water and how they move in a thermally stratified lake.
Abstract: Linsley Pond, a small body of water, 14 m deep located in North Branford, Connecticut, has been the subject of investigation for some 30 years. Over the past years, like many lakes, it has suffered from steadily increasing pollution. During the year August, 1965, through August, 1966, the entire water column of 14 m was sampled weekly and temperature and oxygen data were simultaneously monitored, with the idea in mind of making as complete a geochemical study as possible of all detectable elements in the water and how they move in a thermally stratified lake.
7 citations