Crayfish Natural Science Lab - Boston University

Crayfish and Their Response to Stimuli:
By: Ricardo Sinicio-Tessarotto Tom Ivancic Sherrod Smith Valdas Sirutis

We observed a dominance hierarchy being formed when two crayfish are introduced to the same environment. In our case, this was a small fish tank. Both crayfish expressed territoriality and aggressive behaviors. The behaviors we observed were characterized by:
Fight: Both crayfish strike each other with chelipeds
Hold: one or both crayfish hold each other's chelipeds and remain stationary
Avoidance: crayfish moves away from a threatening or approaching individual
Retreat: Crayfish moves away following confrontation

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• crayfish
• lab
• natural
• science
• boston
• university
• karina
• baum

[NS201]

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