File:Annual report (1903) (14565266740).jpg

Identifier: annualreport101112190newy (find matches)
Title: Annual report
Year: 1902 (1900s)
Authors: New York (State). Forest, Fish and Game Commission
Subjects: Forests and forestry Fisheries Game and game-birds
Publisher: (Albany, N.Y. : The Commission)
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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Il< 0) 5h uj Q.D q: (/) hJQ. 0 J (/)if)< 0 o The Cold 3princr Harbor EpidemicAmong Troat By M. C. MARSH, U. S. Bureau of Fisheries. IN the spring of 1904 a heavy mortality set in among the older brooktrout at the Cold Spring Harbor, N. Y., Station of the New York Forest. Fish and Game Commission, and continued until all the year-ling and most of the adult stock had died, a total of some 12,000 fish.The death rate increased rapidly and on the average 40 to 100 dead fishwere taken from the ponds each day, while at the height of the mortality,the daily loss reached 500. An effort to check the loss by transferring thetrout to live cars in the salt water of the harbor only served to increasethe death rate among the trout so moved. The disease from which the trout were evidently dying was character-ized, in most of the dying fish, by prominent external lesions, the chief ofwhich was a shallow ulcer of circular or elliptical outline, and variouslyseated. This ulcer frequentlv involved

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