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Crayfish Dissection Laboratory

Crayfish Dissection Laboratory. Crayfish Ecology. Crayfish are found in streams, rivers, lakes and ponds where the water contains adequate amounts of calcium salts. They are primarily nocturnal, hiding in crevices and under rocks during the day and emerging to feed at night.

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Crayfish Dissection Laboratory

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  1. Crayfish Dissection Laboratory

  2. Crayfish Ecology • Crayfish are found in streams, rivers, lakes and ponds where the water contains adequate amounts of calcium salts. • They are primarily nocturnal, hiding in crevices and under rocks during the day and emerging to feed at night. • They will eat almost anything organic - plant or animal, living or dead.

  3. External Anatomy

  4. Sexing your crayfish female male

  5. female with eggs

  6. Internal Anatomy

  7. after removing the thorax…

  8. Close up view under the cephalothorax.

  9. tail dissection

  10. detailed ventral view

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