Competition and Isolation Mechanishms in the Gambusia Affinis X. G. Heterochir Hybrid Swarm

Table of Contents: Introduction -- The Study Area -- Methods -- The Stations -- Thermal Stability -- Capture Rates -- Fish Size -- Time of Capture -- Sex Ratio -- Abundance of Fish -- Extent of Hybridization -- Changes in Time -- Density-Sex-Species Relationships -- Size Distribution and Growth Rate -- Seasonal Distribution of Fish -- Seasonal Changes in Species Distribution -- Food Habits -- Fecundity -- Nutrients per Egg -- Time between Broods -- Other Animals -- Discussion -- Summary -- Acknowledgments -- Literature Cited