Water Flea Collection

Pond life, macrophotograph. At centre is a water flea (Daphnia sp.). A copepod (Cyclops sp.) carrying eggs is at bottom centre. Part of a colony of Volvox sp. algae is at bottom right

Water fleas (Daphnia sp. ) and a green algae (Volvox aureus) in water from a garden pond
Water fleas (Daphnia sp.) and a green algae (Volvox aureus) in water from a garden pond. Derbyshire, UK. September. Digital composite

Butterfly, 1833-39 (coloured engraving)
999193 Butterfly, 1833-39 (coloured engraving) by French School, (19th century); Private Collection; (add.info.: A Dictionnaire pittoresque d histoire naturelle et des phenomAnes de la natureA)

Water flea giving birth
Water flea. Macrophotograph of a water flea (Daphnia sp.) giving birth. Daphnia reproduce through parthenogenesis (female asexual reproduction)

Water fleas (Daphnia sp. ) in petri dish, close-up
Water fleas (Daphnia sp.) in petri dish, close-up

Various species of zooplankton, including water fleas (copepod), crab larvae, young fish

Daphnia, water flea
A close-up of a water flea (Daphnia sp.), a tiny planktonic crustacean

Water fleas, SEM
Water fleas. Coloured scanning electron micrograph (SEM) of two water fleas (order Cladocera) in their shells (blue). Water fleas are small freshwater crustaceans, commonly found in ponds

Water flea, light micrograph
Water flea. Light micrograph of a water flea (suborder Cladocera). The long antennae (upper left and right) of this freshwater crustacean have swimming hairs and serve as rowing organs

Aquatic crustaceans, light micrograph
Aquatic crustaceans. Composite image of light micrographs of aquatic planktonic crustaceans with strands of filamentous algae

Water flea, SEM
Water flea (Polyphemus pediculus), coloured scanning electron micrograph (SEM)

Water fleas. Macro photograph of a number of water fleas (Daphnia sp.), showing their internal organs. Water fleas are small crustaceans, commonly found in fresh water

Water flea. Macro photograph of a water flea (Daphnia sp.), showing its internal organs. Water fleas are small crustaceans, commonly found in fresh water

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The water flea, also known as Daphnia sp. , is a fascinating creature found in various aquatic habitats such as garden ponds. These tiny organisms play an essential role in the pond life ecosystem. In one captivating image, they can be seen alongside green algae called Volvox aureus, creating a vibrant and lively scene. Dating back to 1833-39, a colored engraving of a water flea resembles the delicate wings of a butterfly. This artwork showcases the intricate beauty of these creatures that often go unnoticed by human eyes. Zooplankton, including water fleas and other marine organisms like crab larvae and young fish, form an integral part of the food chain in aquatic environments. Their presence ensures balance and sustenance for larger species. A close-up photograph captures water fleas confined within a petri dish, revealing their unique features up-close. The translucent bodies with elongated appendages showcase their adaptability to their watery habitat. Microscopic images provide even more insight into the world of these minuscule crustaceans. Light micrographs reveal detailed structures while scanning electron microscope (SEM) images offer stunning views at an incredibly high magnification level, and are not only visually intriguing but also serve as indicators for environmental health due to their sensitivity to pollution levels. Scientists study them extensively to monitor changes in ecosystems and assess potential threats.