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An order of abundant, free-living, freshwater and marine crustaceans of basic importance in the aquatic food chain in both the marine and freshwater environments; some species are commonly called water fleas. Some are ectoparasites of both cold-blooded and warm-blooded aquatic vertebrates; the parasitic copepods of fish and whales are often highly modified for deep penetration of the skin or for adherence by suckers and hooks (for example, the fish lice, Argulus). Certain copepods (Cyclops, Diaptomus) are important as intermediate hosts of the tapeworm Diphyllobothrium latum and of the nematode Dracunculus medinensis.
[G. kōpē, an oar, + pous (pod-), a foot]
References in periodicals archive ?
Line (1966) reported in a study of Latvian lakes that a typical number of zooplankton species (Cladocera, Copepoda, Rotifera) found in deep lakes is between 24 and 46 (maximum 85) and for medium deep lakes between 22 and 33 species (maximum 91).
Descriptions of parasitic Copepoda belonging to the genera Pandarus and Chondracanthus.
The high degree of endemism observed in other invertebrates in the Chihuahuan Desert appears to be extended to the Copepoda.
Copepoda, another order of planktonic Crustacea, made up about 4% of the meiobenthos.
Similarly, the numbers of Cladocera and Copepoda taxa were higher (6-8 and 4-5 taxa, respectively) in the reference lake than in the other two lakes (2-7 and 1-4, respectively).
For every fifth capelin specimen, all prey items were identified according to broad taxonomic groups: Copepoda, Amphipoda, Euphausia, Pteropoda, molluscan veligers, brachyuran zoeae, Larvaecea, Cladocera, Chaetognatha, Isopoda, and fish eggs and larvae.
Saccostrea cucullata No Unidentified gregarine Pinctada maxima No Copepoda Anthessius pinctadae Pinctada maxima No Agent Host Reference Virus Virus-like inclusions Pinctada maxima Pass et al.
Nematoda and Copepoda were identified fresh to the lowest taxon and then fixed in 70% ethanol with 10% glycerin.