Feeding ecology and aspects of the biology of largemouth bass, rainbow trout, brown trout, and relict dace and the dietary overlap of largemouth bass and rainbow trout with canvasback and redhead ducks at Ruby Marsh, Nevada / Richard William Carmichael
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TextSeries: Thesis ; (M.S.)Publication details: Corvallis, OR : Oregon State University, 1983.Description: 117 leaves : ill. ; 28 cmOnline resources: Abstract: Seasonal food habits, relative prey preference, daily food consumption rates and growth rates of largemouth bass (Micorpterus salmoides)inhabiting the South Sump of Ruby Marsh, nevada (Fig. 1) were studied during 1980 and 1981. In the absence of forage fish, the diets of adult and juvenile bass consisted primarily of coenagrionid damselfly nymphs,aeshnid dragonfly nymphs and libellulid dragonfly nymphs. There was little seasonal variation in the diet composition. Young-of-year (YOY)bass fed on zooplankton and aquatic insects during the summer and aquatic insects during the fall. Juvenile and adult bass showed similar prey preferences and those prey types that attained by largest size were generally the most preferred. The low percentage of empty stomachs indicated a high availability of prey; however, daily food consumption rates at 17.9 C and 21.4 C for fish between 153 and 330 mm total length (TL) were low when compared to the daily food consumption rates of bass of comparable si
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Thesis(M.S.)--Oregon State University, 1983.
"Completed April 22, 1983."
"Commencement June 1983."
Includes bibliographical references (leaves 108-117).
Seasonal food habits, relative prey preference, daily food consumption rates and growth rates of largemouth bass (Micorpterus salmoides)inhabiting the South Sump of Ruby Marsh, nevada (Fig. 1) were studied during 1980 and 1981. In the absence of forage fish, the diets of adult and juvenile bass consisted primarily of coenagrionid damselfly nymphs,aeshnid dragonfly nymphs and libellulid dragonfly nymphs. There was little seasonal variation in the diet composition. Young-of-year (YOY)bass fed on zooplankton and aquatic insects during the summer and aquatic insects during the fall. Juvenile and adult bass showed similar prey preferences and those prey types that attained by largest size were generally the most preferred. The low percentage of empty stomachs indicated a high availability of prey; however, daily food consumption rates at 17.9 C and 21.4 C for fish between 153 and 330 mm total length (TL) were low when compared to the daily food consumption rates of bass of comparable si