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Food Habits of Young-of-Year Longnose Gar in Lake Texoma, Oklahoma
Anthony A. Echelle
The Southwestern Naturalist
Vol. 13, No. 1 (May 28, 1968), pp. 45-50
Published by: Southwestern Association of Naturalists
Stable URL: http://www.jstor.org/stable/3668814
Page Count: 6
You can always find the topics here!Topics: Freshwater fishes, Animal feeding behavior, Food, Stomach, Game fishes, Lakes, Feeding habits, Insect larvae, Freshwater bass, Gastrointestinal secretions
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Stomach analysis was done on 267 young-of-year longnose gar, Lepisosteus osseus, (17-276 mm, total-length) taken from Lake Texoma, May 8 to August 23, 1965. Feeding apparently occurred at the surface to a considerable degree, and occurred more actively at night than during the day. Gar in the initial feeding stages (17-21 mm, total-length) fed on a wide variety of items, including entomostracans, insects, and fish. Excepting the initial feeding stage, young-of-year fishes were the predominant food items in gar of all sizes. Menidia audens represented 84%, by number, of the fishes that had been eaten. Evidence indicates that there is some degree of competition for M. audens between young gar and the young of certain game fishes.
The Southwestern Naturalist © 1968 Southwestern Association of Naturalists