2. Fieldwork

San Salvador Island, Bahamas 2011

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Large female <i>Cyprinodon</i> sp. "scale-eater" in Crescent Pond.
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Large female Cyprinodon sp. "scale-eater" in Crescent Pond.

  • <i>Cyprinodon</i> sp. "durophage". Courting male in Crescent Pond, San Salvador Island, Bahamas. This species has an enlarged "nose" overhanging its upper jaw, a novelty among all Cyprinodontiformes, and specializes on hard-shelled prey.
  • <i>Cyprinodon</i> sp. 'normal' in Crescent Pond.
  • Mature female <i>Cyprinodon</i> sp. "durophage" in Crescent Pond.
  • <i>Cyprinodon</i> sp. "normal" male in Crescent Pond. This photo also displays the four dominant plants: flower-like pale green <i>Acetabularia</i>, fuzzy green <i>Batophora</i> in the foreground, tufts of the seagrass <i>Ruppia maritima</i>, all atop lush carpets of <i>Cladophora</i>.
  • Female <i>Cyprinodon</i> sp. "scale-eater" yawning atop a carpet of <i>Acetabularia</i>.
  • Male <i>Cyprinodon</i> sp. "scale-eater" in semi-breeding coloration guarding his territory from the camera.
  • Large female <i>Cyprinodon</i> sp. "scale-eater" in Crescent Pond.
  • Light orange and pale blue breeding coloration of a territorial male <i>Cyprinodon</i> sp. "durophage", the hard-shelled prey specialist in Crescent Pond.
  • Anomalous solid black breeding coloration of a territorial male <i>Cyprinodon</i> sp. "normal" in Crescent Pond.
  • More typical orange and blue breeding coloration of male <i>Cyprinodon</i> sp. "normal" in Crescent Pond.
  • Female interest in a courting male <i>Cyprinodon</i> sp. "normal".
  • Red mangrove (Rhizophora mangle) dominated landscape of Little Lake on San Salvador Island.
  • Field enclosures used for measurement of F2 hybrid survival and growth over four months in Little Lake.
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