Report of the Commissioner - United States Commission of Fish and Fisheries . 21 Curved spine, a common deformity of whitefish fry. 22. Whitefish fry just hati-iii <l curved :. 23. A common d lity of whitefish fry. .?4 Four-eyed whitefish fry. DEVELOPMENT OF THE WHITEFISH EMBr^YO. REPORT OF COMMISSIONER OF FISH AND FISHERIES. LXXIII height of the season. Tt may be stated that no twin discs were foundamong the other h)ts examined, although after the above experience ithad been confidently expected to find them. Never before, however,has a twin disc been observed in a whitefish
Report of the Commissioner - United States Commission of Fish and Fisheries . 21 Curved spine, a common deformity of whitefish fry. 22. Whitefish fry just hati-iii <l curved :. 23. A common d lity of whitefish fry. .?4 Four-eyed whitefish fry. DEVELOPMENT OF THE WHITEFISH EMBr^YO. REPORT OF COMMISSIONER OF FISH AND FISHERIES. LXXIII height of the season. Tt may be stated that no twin discs were foundamong the other h)ts examined, although after the above experience ithad been confidently expected to find them. Never before, however,has a twin disc been observed in a whitefish egg, and only three werefound this season outside of the lot under consideration; neither havetwins or double-headed monstrosities been found common among thewhitefish fry, though they are common among the lake trout. The development of tliis lot of eggs was watched with much interest,but on January 10, when the embryos began to form, not a single twinor double-headed one could be found. It was observed, however, that20 per cent of the eggs were far behind the rest in point of develop-ment and, though apparently alive and healthy, there was no sign ofembryotic formation. This went on un
Size: 2194px × 1139px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublis, booksubjectfisheries
