| Ballerus ballerus | |
|---|---|
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Cyprinidae |
| Subfamily: | Leuciscinae |
| Genus: | Ballerus |
| Species: | B. ballerus |
| Binomial name | |
| Ballerus ballerus | |
| Synonyms | |
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Ballerus ballerus, also known as the zope or the blue bream, is a species of cyprinid fish native to Eurasia.
Ballerus ballerus is one of the more streamlined breams, with a more laterally compressed body (especially towards the tail) and an upturned mouth. [2] The eye is small [3] It has small scales and the lateral line consists of 67-75 scales. It is a pale silvery colour with either pale yellowish or colourless fins. They are normally 25–35 cm in length but occasionally can be up to 40 cm. [2] The maximum published weight is 940g, [3] although the largest rod caught fish, caught in Slovakia, weighed 2.2 kg and measured 53 cm in length. [4] The males develop nuptial tubercules above the anal fin during the spring spawning season. [1]
Ballerus ballerus is found in the large lowland rivers draining to the Baltic Sea, although it is not found in northern Sweden and Finland north of 62°N; the Weser and Elbe draining into the North Sea; the Black Sea; the Don draining into the Sea of Azov; and the Volga and Ural which drain into the Caspian Sea, although it is rare in the Ural River. Its range spans from the Netherlands in the west to Russia and Georgia in the east. [1]
Ballerus ballerus is occurs in large lowland rivers and eutrophic lakes [1] where it feeds on plankton which it catches close to the surface. [2] It spawns in Spring, once the ice has thawed, in shallow reedy bays onto the vegetation and the young fish stay in these areas although the adults move into open water to feed. [2] Spawning has been recorded on gravel in areas of moderate current. [1] This species lives for over 10 years and it breeds for the first time at 3–4 years when they have attained a standard length of 150mm. Spawning is initiated when the water temperature reaches 10 °C and usually lasts for only 1–2 weeks. The females spawn once a year while the males often defend spawning territories along the shoreline. It is known in some areas to migrate long distances to find suitable areas to spawn in. In some regions it will venture into the fresher parts of seas to find food. [1]
The Python-based application server Zope is not named after this species; it is an acronym for "Z Object Published Environment". However, Zope3 was renamed "Bluebream", an alternative vernacular name for Ballerus ballerus. [5]
The white bass, silver bass, or sand bass is a freshwater fish of the temperate bass family Moronidae. commonly around 12-15 inches long. The species' main color is silver-white to pale green. Its back is dark, with white sides and belly, and with narrow dark stripes running lengthwise on its sides. It has large, rough scales and two dorsal fins. They are widely distributed across North America, inhabiting large reservoirs and rivers. When mating in the spring, they are more often found in shallow rivers, creeks, and streams. They have been introduced in some places as sport fish and also to predate on nuisance fish, such as gizzard shad. It is the state fish of Oklahoma.
The ide, or orfe, is a freshwater fish of the family Cyprinidae found in larger rivers, ponds, and lakes across Northern Europe and Asia. It has been introduced outside its native range into Europe, North America, and New Zealand. It is a popular ornamental fish, usually kept in outdoor ponds in temperate regions from which it often escapes.
The roach, or rutilus roach, also known as the common roach, is a fresh- and brackish-water fish of the family Cyprinidae, native to most of Europe and western Asia. Fish called roach can be any species of the genera Rutilus and Hesperoleucus, depending on locality. The plural of the term is also roach.
The gafftopsail catfish is a species of marine catfish found in the waters of the western central Atlantic Ocean, as well as the Gulf of Mexico and the Caribbean Sea. It has long, venomous spines which can cause painful wounds. It feeds on crustaceans and other fish. The male of the species fertilizes the eggs of the female, and broods them in his mouth until they hatch. The gafftopsail feeds throughout the water column. This fish is a common catch in the Southeastern US, although it may be found as far north as New York. They are considered strong fighters by anglers. They are taken from piers, jetties, reefs, and the surf, as well as bottom fishing or flats fishing. They are caught with hard lures as well as soft plastics, cut bait, and live or dead shrimp. Some fishermen use traps for catfish, a method regulated by some states.
The common bream, freshwater bream, bream, bronze bream, carp bream or sweaty bream, is a European species of freshwater fish in the family Cyprinidae. It is now considered to be the only species in the genus Abramis.
Vimba vimba, called also the vimba bream, vimba, zanthe, or zarte, is a European fish species in the family Cyprinidae. It largely lives in the sea but makes an annual migration up-river each year to breed.
The Russian sturgeon, also known as the diamond sturgeon or Danube sturgeon, is a species of fish in the family Acipenseridae. It is found in Azerbaijan, Bulgaria, Georgia, Iran, Kazakhstan, Romania, Russia, Turkey, Turkmenistan, and Ukraine. It is also found in the Caspian Sea. This fish can grow up to about 235 cm (93 in) and weigh 115 kg (254 lb). Russian sturgeon mature and reproduce slowly, making them highly vulnerable to fishing. It is distinguished from other Acipenser species by its short snout with a rounded tip as well as its lower lip which is interrupted at its center.
The European flounder is a flatfish of European coastal waters from the White Sea in the north to the Mediterranean and the Black Sea in the south. It has been introduced into the United States and Canada accidentally through transport in ballast water. It is caught and used for human consumption.
Chromis chromis, the damselfish or Mediterranean chromis, is a small species of ray-finned fish of the family Pomacentridae from the Eastern Atlantic and Mediterranean.
Malapterurus beninensis is a species of electric catfish native to the African nations of Angola, Benin, Cameroon, the Democratic Republic of the Congo, the Republic of the Congo, Equatorial Guinea, Gabon, Ghana, Nigeria and Togo. This species grows to a length of 22 cm (9 in) SL. Its habitat is lowland marshes, rivers, and lakes.
The thinlip mullet is a species of fish in the family Mugilidae. It is found in shallow European waters and is a migratory species.
The red gurnard, also known as the East Atlantic red gurnard or soldier, is a benthic species of ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This fish is found in the eastern Atlantic Ocean, including the Mediterranean Sea and the Black Sea.
Caesio caerulaurea, the blue and gold fusilier, blue fusilier, gold-band fusilier or scissor-tailed fusilier, is a species of marine fish in the family Caesionidae. It is widespread throughout the tropical waters of the Indo-Pacific area, including the Red Sea.
Lutjanus fulviflamma, the dory snapper, blackspot snapper, black-spot sea perch, finger-mark bream, long-spot snapper, Moses perch or red bream, is a species of marine ray-finned fish belonging to the family Lutjanidae, the snappers. It has a wide Indo-Pacific distribution.
Lutjanus johnii, John's snapper, the golden snapper,big-scaled bream, fingermark bream, fingermark seaperch, John's sea-perch, or spotted-scale sea perch, is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is native to the western Pacific and Indian Oceans.
Crenidens crenidens, the karanteen seabream or karanteen, is a species of ray-finned fish from the sea bream family Sparidae which was described by the Swedish zoologist Peter Forsskål in 1775. It is native to the western Indian Ocean but has colonised the eastern Mediterranean Sea since 1970. It is one of only three species in genus Crenidens, the others being the little known Crenidens macracanthus and the partially sympatric C. indicus.
Nemipterus randalli, or Randall's threadfin bream, is a species of ray-finned fish from the family Nemipteridae, the threadfin breams, which is native to the western Indian Ocean and the Red Sea, it has invaded the eastern Mediterranean by Lessepsian migration through the Suez Canal.
The blue-throated wrasse, also known as the bluehead, bluehead parrotfish, bluenose, bluenose parrotfish, bluethroat parrotfish, blue-throat wrasse, kelpie, lilac banded parrotfish, rocky bream, rocky cod, rotfish or winter bream, is a species of marine ray-finned fish from the family Labridae, the wrasses. It is found in the Indian and Pacific Ocean off the south-eastern coasts of Australia.
Siganus canaliculatus, the white-spotted spinefoot, white-spotted rabbitfish, pearly spinefoot, seagrass rabbitfish, slimy spinefoot or smudgespot spinefoot is a species of marine ray-finned fish, a rabbitfish belonging to the family Siganidae. It is native to the western Pacific Ocean and Indian Ocean where it occurs on reefs and in lagoons.
Siganus fuscescens, the mottled spinefoot, black rabbitfish, black spinefoot, dusky rabbitfish, fuscous rabbitfish, happy moments, mi mi, pearl-spotted spinefoot, pin-spotted spinefoot, stinging bream or West Australian rabbitfish, is a species of marine ray-finned fish, a rabbitfish belonging to the family Siganidae. It is found in the Western Pacific Ocean.
