Are Sharks Chemically Aware of Crocodiles?

  • L. E. L. Rasmussen
  • Michael J. Schmidt


The American crocodile, Crocodylus acutus, inhabits a coastal, estuarine environment; its Atlantic distribution has included all the major islands of the West Indies, the Atlantic coastal lowlands from the southern coasts of Florida, and from Tamaulipas in Mexico to Venezuela (Campbell and Winterbotham, 1985; Schmidt and Ingor, 1957; Minton and Minton, 1973). The lemon shark, Negaprion brevirostris, frequents this same coastal, estuarine environment (Springer, 1938, 1940; Gruber, 1982).


Estuarine Environment Tonic Immobility Lemon Shark Nile Crocodile Individual Shark 
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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • L. E. L. Rasmussen
    • 1
  • Michael J. Schmidt
    • 2
  1. 1.Department of Chemical and Biological SciencesOregon Graduate Institute of Science and TechnologyBeavertonUSA
  2. 2.Washington Park ZooPortlandUSA

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