| Diacyclops uruguayensis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Copepoda |
| Order: | Cyclopoida |
| Family: | Cyclopidae |
| Genus: | Diacyclops |
| Species: | D. uruguayensis |
| Binomial name | |
| Diacyclops uruguayensis (Kiefer, 1935) | |
Diacyclops uruguayensis is a species of freshwater copepod belonging to the family Cyclopidae. It was first described by Friedrich Kiefer in 1935. [1] [2]
This is part of the genus Diacyclops , which includes numerous species of freshwater copepods.
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It was originally described from pools near Montevideo, Uruguay. Subsequent studies have recorded its presence in other regions, including parts of Brazil, such as Santa Catarina and Ceará, suggesting a broader distribution than initially recognized.
The gastrotrichs, commonly referred to as hairybellies or hairybacks, are a group of microscopic (0.06–3.0 mm), cylindrical, acoelomate animals, and are widely distributed and abundant in freshwater and marine environments. They are mostly benthic and live within the periphyton, the layer of tiny organisms and detritus that is found on the seabed and the beds of other water bodies. The majority live on and between particles of sediment or on other submerged surfaces, but a few species are terrestrial and live on land in the film of water surrounding grains of soil. Gastrotrichs are divided into two orders, the Macrodasyida which are marine, and the Chaetonotida, some of which are marine and some freshwater. Nearly 800 species of gastrotrich have been described.
Copepods are a group of small crustaceans found in nearly every freshwater and saltwater habitat. Some species are planktonic, some are benthic, several species have parasitic phases, and some continental species may live in limnoterrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests, bogs, springs, ephemeral ponds, puddles, damp moss, or water-filled recesses of plants (phytotelmata) such as bromeliads and pitcher plants. Many live underground in marine and freshwater caves, sinkholes, or stream beds. Copepods are sometimes used as biodiversity indicators.
Calanoida is an order of copepods, a group of arthropods commonly found as zooplankton. The order includes around 46 families with about 1800 species of both marine and freshwater copepods between them.
The Cyclopoida are an order of small crustaceans from the class Copepoda. Like many other copepods, members of Cyclopoida are small, planktonic animals living both in the sea and in freshwater habitats. They are capable of rapid movement. Their larval development is metamorphic, and the embryos are carried in paired or single sacs attached to first abdominal somite.
Megacyclops is a genus of copepods, containing the following species:
Stygotantulus is a genus of crustacean with the sole species Stygotantulus stocki. It lives as an ectoparasite on harpacticoid copepods of the families Tisbidae and Canuellidae. It may be the smallest arthropod in the world, at a length of less than 0.1 millimetres (0.004 in). The specific name stocki commemorates Jan Hendrik Stock, a Dutch carcinologist.
Cyclops bicuspidatus is a planktonic species of copepod found throughout the world, except Australia, and characteristic of the Great Lakes of North America. It is a deep water species found throughout the year with peak abundance occurring in May or June. Males grow up to 0.8–1.0 millimetre (0.031–0.039 in) long, while females are larger at 0.9–1.6 mm (0.035–0.063 in).
Centropagidae is a family of copepods in the order Calanoida. Its members are particularly known as plankton in coastal waters and in fresh water in Australia and southern South America. They are also found on subantarctic islands and in lakes in Antarctica.
Karllangia is a genus of marine copepods. Its name commemorates the Swedish carcinologist Karl Georg Herman Lang. The genus contains five species:
Gelyella is a genus of freshwater copepods. They live in groundwater in karstic areas of southern France and western Switzerland. The two species are the only members of the family Gelyellidae and, although previously placed in the order Harpacticoida, a new order, Gelyelloida, was erected for this family alone.
The black prince copepod is a mesopelagic copepod found in temperate and tropical waters worldwide. They have been known to display bioluminescence.
Sinodiaptomus is a genus of freshwater copepods in the family Diaptomidae, found in Asia and Palaearctic regions. The Japanese Sinodiaptomus valkanovi has established non-indigenous populations in California, Bulgaria and New Zealand, although only the New Zealand population persists due to destruction of the habitat in California and Bulgaria. The genus was originally described as a subgenus of Diaptomus, containing only Sinodiaptomus chaffanjoni, but now contains five species:
Ectrepopterus uruguayensis is a small species of characin originally recorded only from streams in Uruguay, with occasional sightings in Brazil and Argentina. It is the only known member of the genus Ectrepopterus, which was formerly a subgenus of Megalamphodus. Given its restricted range, it is considered a rare fish, and is of note for conservation researchers interested in preserving the biodiversity of the region.
Tracheliastes polycolpus is a species of copepod in the family Lernaeopodidae. It is an ectoparasite of a number of freshwater fish in Western Europe, including the beaked dace Leuciscus burdigalensis, the common dace Leuciscus leuciscus, and occasionally a few other fish species. The subspecies Tracheliastes polycolpus baicalensis has been described from Lake Baikal. The parasite attaches itself to the fins of the host, and lives on the mucus and epithelial cells of the host.
Cladorhiza caillieti is a carnivorous sponge of the family Cladorhizidae described in 2014 from specimens collected from the Juan de Fuca Ridge off the coast of Vancouver Island. It feeds on small crustaceans such as amphipods and copepods. C. caillieti is an elongate, bottlebrush-shaped sponge with filaments projecting from a main stem, and ranges from 7 to 9 cm in height. The specific epithet honors Dr. Gregor M. Cailliet of the Moss Landing Marine Laboratories.
Diacyclops is a genus of cyclopoid copepods in the family Cyclopidae. There are more than 120 described species in Diacyclops.
Physonectae is a suborder of siphonophores. In Japanese it is called 胞泳.
Hypostomus arecuta is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it occurs in the Paraná River in Argentina.
Ergasilus curticrus is a freshwater parasitic copepod named in 2015. Described from the Orinoco river basin, it was found solely to be hosted by individuals of the Characiform fish species Bryconops giacopinii. Of those located in South America, it is one of only five species in its genus to be found outside of Brazil.
Diacyclops trajani is a species of freshwater copepod in the family Cyclopidae, which is found in various parts of the world. This species is part of the genus Diacyclops.
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