. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. SPERM-EGG INTERACTION IN SHRIMP 451. FIGURE 8. At the end of 30 seconds following spawning, the spike has contacted the egg investment. The base remains flattened, and filamentous material is still associated with the egg surface (arrow). Bar = 5 FIGURE 9. A breach in the investment surface begins to appear around the tip of the spike (arrow) by 45 seconds and the base of the sperm distal to the point of spike egg contact is detached from the egg surface. Bar = investment and in subsequent stages is entirely lifted off
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. SPERM-EGG INTERACTION IN SHRIMP 451. FIGURE 8. At the end of 30 seconds following spawning, the spike has contacted the egg investment. The base remains flattened, and filamentous material is still associated with the egg surface (arrow). Bar = 5 FIGURE 9. A breach in the investment surface begins to appear around the tip of the spike (arrow) by 45 seconds and the base of the sperm distal to the point of spike egg contact is detached from the egg surface. Bar = investment and in subsequent stages is entirely lifted off (Fig. 12). Some residual filamentous material may still link the base with the investment (Fig. 1 1 ). As noted earlier, no scarring of the investment is discernible where the base had originally contacted the investment. Fusion has occurred by 90 seconds post spawning (Fig. 13, 14) and a fertilization cone is apparent. A dense core, perhaps representing elements of the spike, can be distinguished in the cone and is surrounded by densely staining cytoplasm (Fig. 14).. 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, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
