Diet composition influences the fitness of the herbivorous crab Grapsus albolineatus

  title={Diet composition influences the fitness of the herbivorous crab Grapsus albolineatus},
  author={Robin Kennish},
  • R. Kennish
  • Published 2004
  • Environmental Science
  • Oecologia
The tropical rocky shore crab Grapsus albolineatus feeds primarily on filamentous algae but eats animal matter whenever it is available. During the summer the crab's diet switches to encrusting algae due to a die-off of filamentous algae. As a result of the switch the nutrients in the diet of the crab vary seasonally and may influence the fitness of the crab. Maintenance, growth, reproductive performance and nutrient storage of crabs were examined under four dietary regimes of increasing… 
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