FishPredation

Fish Predation

Common Methods

• Stalking
• Chasing
• Ambush
• Habituation
• Angling

Predation Model

• Energy vs. Cost
• Search → Encounter → Strike → Capture
• Factors Affecting Search:

For Predator: Hunger For Prey: Camouflage

• Factors Affecting Encounter

For Predator: Swimming Speed, water clarity, illumination, schooling, detection mechanisms For Prey: morphology, activity level, pigmentation, distribution

• • Factors Affecting Strike
• For Predator: alternative prey, location

For Prey: body size, sensory ability

• Factors Affecting Capture

For Predator: mouth gape, strike speed, handling For Prey: escape capabilities, schooling, shelter seeking behavior

References: K.M. Bailey, JT. Duffy Anderson. 2001. Fish Predation and Mortality. Encyclopedia of Ocean Sciences (Second Edition). Pages 417-421.