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Daphnia is a genus of small planktonic crustaceans, 0.2–6.0 mm (0.01–0.24 in) in length. Daphnia are members of the order Anomopoda , and are one of the several small aquatic crustaceans commonly called water fleas because their saltatory swimming style resembles the movements of fleas .
Daphnia pulex. The genus Daphnia (Crustacea: Cladocera: Daphniidae) contains over 200 species of water fleas, many of which are in need of further taxonomic investigation (species inquirendae; marked with asterisks). [1]
Daphnia is one of the three subgenera of the genus Daphnia, the others being Australodaphnia and Ctenodaphnia. [1] Species. Daphnia ambigua Scourfield, 1947;
Water flea (Daphnia magna) the 1930s North America, Eurasia, Africa: research, animal feed 6c Other arthropods: African (Xenopus laevis) and western clawed frogs (X. tropicalis) the 1950s (uncertain for X. tropicalis) Southern Africa, West Africa: research, pets Captive-bred 4a Anura: Sea-monkey (Artemia nyos) the 1950s the United States: pets ...
Daphnia nivalis is a species of water flea in the family Daphniidae, closely related to Daphnia carinata. [2] It is endemic to the Snowy Mountains of eastern Australia, where it lives only in water bodies that have existed for less than 20,000 years, [2] including Lake Cootapatamba, Australia's highest lake. [3]
Daphnia pulicaria have a translucent carapace and two prominent second antennae, which they use to move. [11] The carapace, composed primarily of chitin, helps protect the feeding apparatus, and it is periodically shed during an individual's life. [11] Daphnia have a compound eye, and they are known to have an optomotor response. [12]
Brassica carinata is a species of flowering plant in the Brassicaceae family. [1] [2] It is referred to by the common names Ethiopian rape or Ethiopian mustard. [3] It is believed to be a hybrid between Brassica nigra and Brassica oleracea. [4] The flowers attract honey bees to collect pollen and nectar.
In 2011 and 2018, novel allohexaploids (AABBCC) located at the "center" of the triangle of U were created by different means, [9] [10] [11] for example by crossing B. rapa (AA) with B. carinata (BBCC), or B. nigra (BB) with B. napus (AACC), or B. oleracea (CC) with B. juncea (AABB), followed by chromosome duplication of the triploid (ABC ...