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March 26, 2026Marine BiologyOpen Access

Sex-specific predation of the non-native invasive American blue crab Callinectes sapidus on the Mediterranean mussel Mytilus galloprovincialis

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Authors

MMMaura MassiminoPBParide BalzaniMÇMülkibar Çiftçioğlu

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Overview

This analysis reports predation impacts of the American blue crab on mussels, suggesting sex differences improve impact predictions.

Key Points

  • The aim is to analyze sex-specific predation efficacy of the invasive American blue crab on the Mediterranean mussel.
  • Conducted functional response experiments comparing male and female blue crabs as predators.
  • Measured the proportion of mussels killed and eaten at varying prey densities.
  • Assessed attack rates and handling times for both sexes.
  • Female crabs killed a higher proportion of mussels than males, especially at lower prey densities.
  • Both sexes displayed a type II functional response, indicating strong predation pressures.
  • Females exhibited more than twice the predatory pressure of males, linked to energetic demands for reproduction.

Cite This Study

Massimino et al. (2026) studied this question.

synapsesocial.com/papers/69c4ccc9fdc3bde4489185a9https://doi.org/10.1007/s00227-026-04812-x
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