. The ecology of coral reefs : results of a Workshop on Coral Reef Ecology held by the American Society of Zoologists, Philadelphia, Pennsylvania, December 1983. Reaka-Kudla, Marjorie L; American Society of Zoologists; Coral reef ecology. MEAN SOLAR R ADI AT I ON - ST. CROIX E o CO o < a < < Q < UJ s 500 400 300. x x / / / l I I I i I t I l l I I X—L Dec Jan Feb Mar Apr May June Jul Aug Sept Oct Nov (1978) Figure means of daily solar radiation, production (figs. 3, 4, and 5). If any other environmental factor was limiting, the rate of oxygen production would level off,
. The ecology of coral reefs : results of a Workshop on Coral Reef Ecology held by the American Society of Zoologists, Philadelphia, Pennsylvania, December 1983. Reaka-Kudla, Marjorie L; American Society of Zoologists; Coral reef ecology. MEAN SOLAR R ADI AT I ON - ST. CROIX E o CO o < a < < Q < UJ s 500 400 300. x x / / / l I I I i I t I l l I I X—L Dec Jan Feb Mar Apr May June Jul Aug Sept Oct Nov (1978) Figure means of daily solar radiation, production (figs. 3, 4, and 5). If any other environmental factor was limiting, the rate of oxygen production would level off, indicating light saturation. In contrast to our field measurements, most studies using enclosures, even with stirring, commonly report light saturation. This is likely an artifact of insufficient water motion. In more recent work with chambers (, Carpenter, in ms.), where efforts have been made to simulate surge motion, this lack of light saturation for algal turfs is repeatedly demonstrated. In this investigation, daily solar radiation levels were recorded with a pyroheliometer (see fig. 6 for monthly mean values). During our study we sampled two periods of high light intensity (May and August) and two periods of lower light intensity (January and October). Averaging hourly production rates 180. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Reaka-Kudla, Marjorie L; Workshop on Coral Reef Ecology (1983 : Philadelphia, Pa. ); United States. National Oceanic and Atmospheric Administration. Office of Undersea Research. Washington, D. C. : U. S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Oceanic and Atmospheric Research, Office of Undersea Research
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