Environmental Biology of Fishes

, Volume 38, Issue 4, pp 373–378 | Cite as

Effect of four fluctuating temperature regimes on cui-ui,Chasmistes cujus, survival from egg fertilization to swim-up, and size of larvae produced

  • G. Gar Scoppettone
  • Mark E. Buettner
  • Peter H. Rissler


We evaluated cui-ui,Chasmistes cujus, swim-up success, time of hatching and swim-up, and size of larvae at swim-up under four fluctuating temperature regimes (8.9–15.0, 12.2–18.3, 15.0–21.1, and 17.8–23.9° C). The greatest swim-up success was at the 8.9–15.0° C regime and the lowest at the 15.0–21.1° C regime. Hatching and swim-up time varied inversely with incubation temperature. The largest (and presumably the most fit) larvae were in the 8.9–15.0° C treatment, whereas the smallest were in the 17.8–23.9° C treatment. Cui-ui appeared best adapted to the coolest of the four temperature regimes.

Key words

Temperature tolerance Incubation time Swim-up success 


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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • G. Gar Scoppettone
    • 1
  • Mark E. Buettner
    • 2
  • Peter H. Rissler
    • 1
  1. 1.Seattle National Fishery Research CenterRenoUSA
  2. 2.U.S. Bureau of ReclamationKlamath FallsUSA

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