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Specimen
019
A short video featuring the female of the one-eyed crustacean Cyclops with her egg sacs. The female carries two full sacs of eggs, one sac on either side of her abdomen - these twin egg-sacs are the main distinguishing feature of the Cyclopoidea. Five to 40 eggs hatch inside the egg sacs and the young exit within five days. The used egg sac is immediately replaced by a new one that fills with new eggs. The young that hatch from the eggs go through five stages in a form called a nauplius before assuming a more cyclops-like larval form. Recorded in real-time on a SWIFT SW350T Trinocular Compound Microscope, using bright-field microscopy as well as dark field filters. From water samples collected at Kingfisher Pond in Northstowe, Cambridgeshire. |