9697 - Laserfiche WebLink

Home Browse Search

1724 BESTGEN ET AL. Biotic Controlling Factors Embryos and Larvae in substrate Abiotic Controlling Factors Number and condition of adu~s }- -{Timing and magnitude of runoff Age and size strueture of adu~s Substrate characteristics, siltation, oxygen Timing of spawning . Discharge fluctuations Predation on embryos and larvae Water temperature Physical disturbance of spawning site by other fish Stochastic events (e.g., floods and pollutants) Dispersing Larvae in main channel and channel margins Predation Starvation Habitat selection Magnitude and duration of spring runoff Water temperature and variability Geomorphic factors Turbidity Predation, affected by individual characteristics r ~ Growth rate Discharge- and geomorphic-related habitat availability Condition and starvation Discharge fluctuations and habitat stability Food abundance Water temperature Intra- and interspecific competition Stochastic events (e,g,. floods and pollutants) Size-related energy stores Size-related swimming ability Food abundance Habitat-related movement patterns -[Discharge-related habitat availability Discharge fluctuations and habitat stability Water temperature Growth Predation, affected. by individual characteristics }- -[spring floodplain connectivity Food abundance Main channel discharge-dependent seasonal habitat Intra- and interspecific competition availability Habitat-related movement patterns Water temperature regimes Reproductive condition Stochastic events (e.g., pollutants) Drought effects on condition and survival FiGURE I.-Conceptual life history model of Colorado pikeminnow recruitment to various developmental stages and important biotic and abiotic factors that control them.