Cyclops spp.
A Copepod
Cyclops spp., a Copepod. Copepods are crustaceans found free swimming in freshwater, usually by beating their antennae. Cyclops is easily recognisable by its single eye spot. Females carry eggs in sacs attached to the rear of the body. The species illustrated here is less than 1mm long. Development is through several larval stages called nauplii, which are also free swimming. Cyclops feeds on pond detritus and micro-organisms.
Photograph detail
Slide 1: Cyclops spp.. Female with egg sacs. Collected from a temporary pool besides the disused railway. Hargill, Redmire. February.
Slide 2: Cyclops spp.. Female with egg sacs. Collected from a temporary pool besides the disused railway. Hargill, Redmire. February.
Slide 3: Cyclops spp.. Male. Collected from a temporary pool besides the disused railway. Hargill, Redmire. February.
Slide 4: Cyclops spp.. Male. Collected from a temporary pool besides the disused railway. Hargill, Redmire. February.
Slide 5: Cyclops spp.. Nauplius larva. Collected from a temporary pool besides the disused railway. Hargill, Redmire. February.
Slide 6: Cyclops spp.. Nauplius larva. Photographed at x400, phase contrast illumination. Collected from a temporary pool besides the disused railway. Hargill, Redmire. February.
Slide 7: Cyclops spp.. Habitat, a temporary pool besides the disused railway. Hargill, Redmire. February.