. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 116 S. C. KEMPF. FIGURE 9. Unstained, refractile, lipid droplets in a ceras of Pteraeolidea ianthina. L-lipid droplet, Zx-zooxanthellae. Bar = 20 /xm. FIGURE 10. Unstained refractile lipid droplets associated with intracellular zooxanthellae in tissues of Melibe sp. L-lipid droplet, Zx-zooxanthellae. Bar = 10 /urn. associated with the intracellular zooxanthellae found in the tissues of adult Melibe sp. (Fig. 10). Adult Melibe pilosa and Berghia major lack refractile droplets. The newly hatched veligers of all four species co
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 116 S. C. KEMPF. FIGURE 9. Unstained, refractile, lipid droplets in a ceras of Pteraeolidea ianthina. L-lipid droplet, Zx-zooxanthellae. Bar = 20 /xm. FIGURE 10. Unstained refractile lipid droplets associated with intracellular zooxanthellae in tissues of Melibe sp. L-lipid droplet, Zx-zooxanthellae. Bar = 10 /urn. associated with the intracellular zooxanthellae found in the tissues of adult Melibe sp. (Fig. 10). Adult Melibe pilosa and Berghia major lack refractile droplets. The newly hatched veligers of all four species contain refractile droplets in their digestive diverticula. The presence of these droplets is particularly evident in newly hatched larvae of Pteraeolidea ianthina that contain refractile droplets throughout most larval tissues rather than just in the digestive diverticula. These refractile droplets also stain bright red with Sudan IV in larvae of Melibe pilosa, Melibe sp., and P. ianthina and green in sections of plastic-embedded larvae stained with Richardson's stain. Larvae of Berghia major were not stained. Translocation of fixed carbon from symbiont to host Starved adult specimens of Melibe pilosa, Berghia major, and Pteraeolidea ianthina survive longer in constant light than in constant dark (Table I). Comparative starvation tests were not performed with Melibe sp. Starved M. pilosa can survive a maximum of 29 days in constant light and 20 days in constant dark. Similar results were obtained for B. major. Pteraeolidea ianthina, on the other hand, survive as long as 192 days in constant light and up to 90 days in constant dark. All species tested decrease in mass during starvation. The mode and effects of this mass loss are most evident in P. ianthina due to its longer period of survival. Initially a slight increase in mass occurs, followed by a continuous decrease until death. Animals held in constant dark decrease in mass more rapidy than those held in constant light. Afte
Size: 2666px × 938px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
