. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 14 BERTRAM fi. SMITH. few of the foremost fishes, with shy, frightened movements, dart rapidly down stream through the swift water of the regular spawning grounds ; after the first reconnoissance they hurry back- to rejoin the main body, and the entire school moves up stream. This is repeated several times ; each time the band of more ven- turesome fishes is increased in number, and a little later, on the up-stream journey, they stop for a time to spawn on the pebbly margin of the stream. Soon the entire school, in a compact
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 14 BERTRAM fi. SMITH. few of the foremost fishes, with shy, frightened movements, dart rapidly down stream through the swift water of the regular spawning grounds ; after the first reconnoissance they hurry back- to rejoin the main body, and the entire school moves up stream. This is repeated several times ; each time the band of more ven- turesome fishes is increased in number, and a little later, on the up-stream journey, they stop for a time to spawn on the pebbly margin of the stream. Soon the entire school, in a compact body, is spawning on the shallows. With their swift movements. Fig. 4. Spawning grounds of Chrosotnus. Ihe shallow water near shore is oc- cupied by a school of several hundred C/trosoinus; some of these may be indistinctly seen, in spawning position, at the surface of the water in the center of the picture. and brilliant colors, this writhing mass of several hundred fishes affords a truly remarkable spectacle. Persistent attempts to photograph the spawning operations met with poor success, a result due in part to the lack of a suitable camera. Figs. 4 and 5 are reproductions of two of the many views taken. This procedure of spawning en masse in shallow swift water. 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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