Allegheny pearl dace | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Cypriniformes |
Family: | Cyprinidae |
Genus: | Margariscus |
Species: | M. margarita |
Binomial name | |
Margariscus margarita (Cope, 1867) | |
Synonyms [2] | |
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The Allegheny pearl dace (Margariscus margarita) is a species of cyprinid fish. It is a demersal, freshwater fish, with a dark green back and silvery body. This species is omnivorous, consuming algae, as well as arthropods. M. margarita's range spans southern Canada and the northern United States. While not considered endangered at the federal level in the United States, several states either consider this species endangered or threatened; it faces threats of habitat destruction and invasive species.
M. margarita is a bottom-dwelling freshwater fish that has been recorded to reach sizes of 16 cm (6.3 in), however, it does not commonly grow beyond about 9.3 cm (3.7 in). The maximum age M. margarita has been recorded to reach is four years. [2] The body is long with small eyes and mouth. [3] There are eight rays each in the dorsal fin, anal fin, and pelvic fins. The dorsal side is dark green, with silvery flanks and a grey or white ventral side. Between late autumn and summer, males may have a brilliant orange-red stripe on the flanks, below the lateral line. [3]
This species is omnivorous: its diet comprises algae, as well as arthropods, such as chironomids and water fleas. M. margarita spawns in the spring. [2] This species typically reaches sexual maturity at one year. [3]
This species inhabits North America, in southern Canada, and the northern United States. It can be found in the Mississippi River, Hudson Bay, and the Great Lakes. M. margarita inhabits lakes, ponds, and rivers, usually over a sandy or gravelly substrate. [2] [4] It feeds by sight, [5] so waters it inhabits are generally clear streams and bog drainage systems. [4]
Margariscus margarita is not considered endangered federally in the United States; however, in several states, it is considered endangered or threatened. The species is uncommon in the Great Plains region, having declined since the region's settlement. [5] M. margarita is threatened mainly by habitat destruction and alteration, and introduced species. [5] Human activities such as reservoir construction, groundwater pumping, stream diversions, and channelization all contribute to the former. [5] The introduction of exotic species such as bass, pike, or trout have an especially detrimental effect on this species. M. margarita is also caught for use as bait, which may contribute to its decline. [5]
The northern redbelly dace is a fresh water cyprinid fish, generally found in lakes and small streams in the northeastern United States and eastern Canada. Ranging from 1-3 inches, it is one of forty-four species from the minnow and carp family of Cyprinidae in these areas.
The moapa dace is a rare cyprinid fish of southern Nevada, United States, found only in the upper parts of the Muddy River, and in the warm springs that give rise to the river. It is the only species of the monotypic genus Moapa.
The southern redbelly dace, is a North American species of temperate freshwater fish of the family Cyprinidae. The natural geographic range extends from Western New York to Minnesota, and south to Oklahoma, Arkansas, and Alabama. This fish prefers flowing pools of creeks and streams.
The beautiful shiner is a species of ray-finned fish in the family Cyprinidae. It is found in Mexico and Arizona and New Mexico in the United States. It is one of 22 species of Cyprinella found in North America.
The sturgeon chub is a species of ray-finned minnow fish in the family Cyprinidae. It is found only in the United States. It is a species of concern in the Charles M. Russell National Wildlife Refuge in Montana.
The sicklefin chub is a species of ray-finned minnow fish in the family Cyprinidae. It is found only in the United States. It is one of the 324 fish species found in Tennessee, and is a species of concern in the Charles M. Russell National Wildlife Refuge in Montana.
The Tennessee dace is a species of ray-finned fish in the family Cyprinidae. It is found only in the United States; particularly in northeast Tennessee and southwest Virginia, and parts of extreme northwest Georgia. Until recently, they were considered a subspecies of mountain redbelly dace. They are commonly found in East Tennessee in spring fed first-order streams, often in silt and fine gravel pools, or undercut banks. These streams usually do not exceed two meters in width.
The Darling River hardyhead is a species of fish in the family Atherinidae endemic to Australia. The species name amniculus is from the Latin meaning a small creek or stream, in reference to the habitat where these fish are often found.
The Australian rainbowfish, known less commonly as the Murray River rainbowfish, is a species of freshwater fish endemic to southeastern Australia. The southernmost species of all rainbowfishes, these fish are very colourful, hence the name; and there is sexual dimorphism with the males being larger and more colourful than females. Australian rainbowfish are schooling fish and will congregate near logs or riverbanks, and are a popular aquarium fish.
The Gila longfin dace is a subspecies of the longfin dace found in Arizona. It is considered the nominate subspecies of the longfin dace.
The spottail shiner or spottail minnow is a small- to medium-sized freshwater minnow. It can be found as far north as Canada and as far south as the Chattahoochee River in Georgia. These shiners live in lakes, rivers, and creeks. They occupy the rocky or sandy shorelines and bottoms of the water. One of the defining features of a spottail shiner is the black spot found at the base of the caudal fin. These shiners generally spawn from late June through July.
The carmine shiner is a freshwater fish species. In Manitoba, it was once known as the rosyface shiner. Based mostly on zoogeographic data, it is currently classified as a distinct species within the rosyface shiner species complex. The carmine shiner is a member of the Minnow family, Cyprinidae. It has the following characteristics and distinguishing features:
Eastern blacknose dace is a species of ray-finned fish in the genus Rhinichthys. Its name originates from the Old French word "dars" which is the nominative form of the word "dart" in reference to their swimming pattern. The western blacknose dace formerly was considered conspecific. While morphologically the two species are not significantly different, they are allopatric. The eastern blacknose dace is found across the southeast portion of Canada and down along the United States' east coast. It is dark brown to olive on its dorsal surface and silvery white below, the two shades separated by the darkly pigmented lateral line. In the breeding season, males develop darker pigmentation and an orange lateral line. Blacknose dace live in rocky streams and rivers where they feed upon small invertebrates and microscopic biological matter and provide forage for larger fish.
Toxotes chatareus, sometimes known by the common names common archerfish, seven-spot archerfish or largescale archerfish, is a species of perciform fish in the archerfish genus Toxotes.
The brassy minnow is a species of fish belonging to the family Cyprinidae. The family Cyprinidae consists of mainly freshwater minnows and carps. The fish gets its scientific name from the Greek word Hybognathus, meaning bulging jaw, and hankinsoni from the American scientist, T.L. Hankinson. It is commonly found throughout the northern United States and Canada.
The blackspotted topminnow, Fundulus olivaceus, is a species of fish in the family Fundulidae: the topminnows and North American killifishes. It is native to the south-central United States, where it is known from the drainages of the Mississippi River from Illinois to the Gulf of Mexico and as far west as Galveston Bay.
Leiopotherapon unicolor, the spangled grunter or spangled perch is a species of ray-finned fish, a grunter from the family Terapontidae. It is endemic to Australia.
The Marathon minnow is a species of freshwater ray-finned fish from the family Cyprinidae, the carps and minnows. It is endemic to Greece.
The northern pearl dace is a freshwater ray-finned fish in the family Cyprinidae, the carps and minnows. It occurs in Atlantic, Hudson Bay, Great Lakes, and Mississippi River basins in the northern United States and Canada. Its preferred habitat is cool, clear headwater streams, bog drainage streams, ponds and small lakes, and in stained, peaty waters of beaver ponds, usually over sand or gravel.