. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. LUMINESCENCE OF A MARINE COPEPOD 101 photometer response was recorded at slow speed (6 ) so that each flash gave a spike indicating maximum intensity and time of occurrence. Analyzing the results of these experiments was complicated by the fact that both prey (Me- tridia) and predator (Meganyctiphanes') were luminescent. However, compari- son of the characteristics of Mctridia and Meganyctiphanes luminescence records when the animals were stimulated electrically showed that high intensity responses ICT£ icr3 I0'4 ICr5
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. LUMINESCENCE OF A MARINE COPEPOD 101 photometer response was recorded at slow speed (6 ) so that each flash gave a spike indicating maximum intensity and time of occurrence. Analyzing the results of these experiments was complicated by the fact that both prey (Me- tridia) and predator (Meganyctiphanes') were luminescent. However, compari- son of the characteristics of Mctridia and Meganyctiphanes luminescence records when the animals were stimulated electrically showed that high intensity responses ICT£ icr3 I0'4 ICr5 10 -6 -7 10 £ * io-2. 10 -3 10 -4 10 -5 10 10 -6 -7 (CONTINUED) 0 SEC 10 20 30 40 f. 50 60 10 20 30 FIGURE 6. Luminescence of a single Meganyctiphanes norvegica when stimulated in the electrode chamber. Arrows along time scale indicate instant of stimulation. Chart speed is 6 The stimulus ( amp.) was as strong as any ever used for Mctridia. Low inten- sity of luminescence is notable in comparison to Mctridia's bright flash. were almost surely due to Mctridia. Even using a maximum stimulus ( amp.), Mcganyctiplianes never produced a response higher than 1 :: 10~4 ' and it was generally much lower. Furthermore, the luminescent emission of Mega- nyctiphones was usually a prolonged irregular glow (Fig. 6). The Mctridia, by contrast, always gave a single flash that appeared as a perpendicular spike on the slow-speed record (see Fig. 7). Using these two criteria, a reasonable inter- pretation of the records could be 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 189
Size: 4068px × 614px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
