. The Biological bulletin. Biology; Zoology; Marine biology. PRODUCTIVITY OF MOINA 241 I200-, 1000- 800- V) < 600- 400- 200 26°C FAT MIXTURE TYPE â CHLOROPHYTE ⢠DIATOM O BLUE-GREEN. 100 DAY Figure 2. Fatty acid composition dependent quantitative effect. 26° C; diets containing chlorophyte and blue green fatty acids at 3 mg% and diatom fatty acids at mg%. All experimental populations were incubated in darkness. This procedure was used to eliminate the photoperiod factor which has been associated with the transition to sexuality in some species of Cladocera and to
. The Biological bulletin. Biology; Zoology; Marine biology. PRODUCTIVITY OF MOINA 241 I200-, 1000- 800- V) < 600- 400- 200 26°C FAT MIXTURE TYPE â CHLOROPHYTE ⢠DIATOM O BLUE-GREEN. 100 DAY Figure 2. Fatty acid composition dependent quantitative effect. 26° C; diets containing chlorophyte and blue green fatty acids at 3 mg% and diatom fatty acids at mg%. All experimental populations were incubated in darkness. This procedure was used to eliminate the photoperiod factor which has been associated with the transition to sexuality in some species of Cladocera and to prevent the photodegrada- tion of riboflavin, a required vitamin present in all media. Exposure to light was minimal and occurred only when cultures were shaken or when optical transmission measurements were taken. The source of light was indirect, consisting of a 10 watt light bulb fitted into a photographic safelight stand which was covered with red acetate film. Within the optical transmission apparatus red acetate material covered the slit (passage) between the light source and the area where the culture tube was positioned for a measurement. Light transmitted by the red acetate material was 600 to 700 nanometers. Past research indicates that Cladocera are minimally respon- sive to wavelengths in this region in both visual and nonvisual sensitivity (Scheffer, Robert, and Medioni, 1958).. 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 Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]
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