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Encyclopedia > Zebra Danio
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Zebra Danio
Zebra Danio
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Genus: Danio
Species: rerio
Binomial name
Danio rerio
(Hamilton-Buchanan, 1822)

The Zebra Danio or Zebrafish (Brachydanio rerio or Danio rerio) is a tropical fish, commonly kept in aquaria and used for scientific research, belonging to the minnow family (Cyprinidae). The fish is named for its five uniformly, pigmented, horizontal blue stripes on the side of the body; all extending to the anal fin onto the end of caudal fin rays of its tail. Zebra Danios are of no economic importance in commercial fisheries as a food fish, but very commonly known and popular in the aquarium trade. They are hardy fish and considered good for beginner aquarists. This species has been called one of the "bread and butter" fishes because of its ease of keeping, continued popularity and its favorable price and availability. Image File history File links Download high resolution version (820x392, 98 KB) A picture I took of one zebra danio from my aquarium. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anenomes) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (flatworms, echinoderms, etc. ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders See text The Actinopterygii are the ray-finned fish. ... Families Suborder Cobitoidea     Balitoridae (hillstream loaches)     Catostomidae (suckers)     Cobitidae (loaches)     Gyrinocheilidae (algae eaters) Suborder Cyprinoidea     Cyprinidae (carps and minnows) The Cypriniformes are an order of ray-finned fish, including the minnows and some related families. ... Genera (many, see text) The family Cyprinidae, named after the Greek word for goldfish, consists of the carps and minnows. ... Species of Danionin Danio Danio albolineatus Danio abolineatus var pulcher Danio abolineatus var tweediei Danio choprae Danio dangila Danio feegradei Danio kerri Danio kyathit var spotted Danio kyathit var striped Danio meghalayensis Danio nigrofasciatus Danio roseus Danio rerio Danio rerio var frankei Danio sp aff kerri Danio sp aff kyathit... In biology, binomial nomenclature is the formal method of naming species. ... Francis Buchanan-Hamilton (February 15, 1762 - June 15, 1829) was a Scottish physician, zoologist and botanist living in India. ... 1822 was a common year starting on Tuesday (see link for calendar). ... The tropics are the geographic region of the Earth centered on the equator and limited in latitude by the two tropics: the Tropic of Cancer in the north and the Tropic of Capricorn in the southern hemisphere. ... Groups Conodonta Hyperoartia Petromyzontidae (lampreys) Pteraspidomorphi (early jawless fish) Thelodonti Anaspida Cephalaspidomorphi (early jawless fish) Galeaspida Pituriaspida Osteostraci Gnathostomata (jawed vertebrates) Placodermi Chondrichthyes (cartilaginous fish) Acanthodii Osteichthyes (bony fish) Actinopterygii (ray-finned fish) Sarcopterygii (lobe-finned fish) Actinistia (coelacanths) Dipnoi (lungfish) A fish is a poikilothermic (cold-blooded) water-dwelling... A 335,000 U.S. gallon (1. ... Genera (many, see text) The family Cyprinidae, named after the Greek word for goldfish, consists of the carps and minnows. ... For other uses, see Blue (disambiguation) Blue is one of the three primary additive colors; blue light has the shortest wavelength range (about 420–490 nanometers) of the three additive primary colors. ... Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ... Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ... Seafood in Brussels, Belgium Seafood is any sea animal that is served as food or is suitable for eating. ... A 335,000 U.S. gallon (1. ...


Originating in Eastern India as well as in Pakistan, India, Bangladesh, Nepal and Myanmar, it grows to about 2 inches (6 cm) and lives for around 5 years. The zebra danio, in its native range, commonly inhabits streams, canals, ditches, ponds and also occurs in slow-moving to stagnant standing water bodies, particularly rice fields. In the aquarium trade, there are long-finned and other color forms of this danio, including a "Leopard" danio. Mid-19th century tool for converting between different standards of the inch An inch is an Imperial and U.S. customary unit of length. ... The metre, or meter (symbol: m) is the SI base unit of length. ... A rice paddy in Japan A paddy field is a flooded parcel of farmland for growing rice (from the Malaysian word padi, a noun meaning growing rice). Paddy fields are a typical feature of rice-growing countries of East and Southeast Asia, such as China, Thailand, Korea, Japan, Vietnam, Indonesia...


Like other danios it is omnivorous and a peaceful fish that gets along well with other fish of similar size in community tanks. A schooling fish, it prefers to be in groups of six or more. Zebra Danios prefer water with a 6.0–8.0 pH, a water hardness of up to 5.0–19.0 dGH, and a temperature range of 64–74 °F (18–24 °C). An omnivore (from Latin: omnis all; vorare to devour) is an animal that eats both plants and meat. ... A 335,000 U.S. gallon (1. ... The correct title of this article is pH. The initial letter is capitalized due to technical restrictions. ... The title given to this article is incorrect due to technical limitations. ... Fahrenheit is a temperature scale named after the German physicist Gabriel Fahrenheit (1686–1736), who proposed it in 1724. ... The degree Celsius (°C) is a unit of temperature named after the Swedish astronomer Anders Celsius (1701–1744), who first proposed a similar system in 1742. ...


The males have gold stripes between the blue stripes and females have silver stripes instead of gold. An egg-scatterer, danios produce around 100 eggs in a single spawning. They are considered one of the easiest aquarium fish to breed. Frog spawn Spawning is the production or depositing of eggs in large numbers by aquatic animals. ...


Other fish also share the name zebrafish. The name zebrafish applies to several different kinds of fish with striped bodies considered to resemble a zebra: Brachydanio rerio, also called Danio rerio or the Zebra Danio, is a commonly used model organism in studies of biological development. ...

Contents


Diseases

Zebra Danio are susceptible to Oodinium, or Velvet disease.


Feeding

Zebra Danios are omnivorous. In the wild, these fish consume various small aquatic insects, crustaceans, worms as well as plankton. For this reason, they can be used to reduce mosquito larvae populations in ponds and ditches. For zebra danios living in aquaria, live/frozen flaked foods are suitable, especially brine shrimp and sinking tablets. When conditioning zebras for breeding, it's advisable to feed them plenty of fresh foods. Orders Subclass Apterygota Symphypleona - globular springtails Subclass Archaeognatha (jumping bristletails) Subclass Dicondylia Monura - extinct Thysanura (common bristletails) Subclass Pterygota Diaphanopteroidea - extinct Palaeodictyoptera - extinct Megasecoptera - extinct Archodonata - extinct Ephemeroptera (mayflies) Odonata (dragonflies and damselflies) Infraclass Neoptera Blattodea (cockroaches) Mantodea (mantids) Isoptera (termites) Zoraptera Grylloblattodea Dermaptera (earwigs) Plecoptera (stoneflies) Orthoptera (grasshoppers, crickets... Classes Class Branchiopoda Subclass Phyllopoda Subclass Sarsostraca Class Remipedia Order Enantiopoda Order Nectiopoda Class Cephalocarida Order Brachypoda Class Maxillopoda Subclass Mystacocarida Subclass Copepoda Subclass Branchiura Subclass Pentastomida Subclass Tantulocarida Subclass Thecostraca Infraclass Cirripedia Class Ostracoda Order Metacopina Subclass Myodocopa Subclass Podocopa Class Malacostraca Subclass Eumalacostraca Subclass Hoplocarida Subclass Phyllocarida The... Worm can refer to: The worm, a collection of animal phyla. ... Photomontage of plankton organisms Plankton are drifting organisms that inhabit the water column of oceans, seas, and bodies of fresh water. ... Genera See text. ... Larvae are the plural of larva, juvenile form of animals with indirect development. ... A pond is a body of water smaller than a lake. ... Species Artemia franciscana Artemia gracilis Artemia monica Artemia nyos Artemia parartemia Artemia parthenogenetica Artemia persimilis Artemia pollicaris Artemia salina Artemia sinica Artemia tibetiana Artemia tunesiana Artemia urmiana Brine shrimp (Artemia) are a type of aquatic crustacean. ...


Model organism for development and genetics

Zebra Danios serve as a common and useful model organism for studies of vertebrate development and gene function because they reproduce very easily, passing from the egg to the larvae stage in less than three days. For genetic research groups, the zebrafish is an excellent test subject and is used in many labs to replace or to supplement higher vertebrate models, such as rats and mice. Danio rerio is one of the few species of fish to have been flown into space (See Animals in space). Aided by the transparency of the embryo, if researchers modify the fish's genotype at the egg stage they can see resulting changes in organ shape or dynamics barely three days later. A common reverse genetics technique is to knock down gene expression or modify splicing in zebrafish using Morpholino antisense technology. The arrival of zebrafish as a major model for studying developmental biology co-incided with a large scale mutagenesis screen. The scholarly journal Development devoted an entire issue to research using the fish in celebration of this landmark. [1] A model organism is a species that is extensively studied to understand particular biological phenomena, with the expectation that discoveries made in the model organism will provide insight into the workings of other organisms. ... Groups Conodonta Hyperoartia Petromyzontidae (lampreys) Pteraspidomorphi (early jawless fish) Thelodonti Anaspida Cephalaspidomorphi (early jawless fish) Galeaspida Pituriaspida Osteostraci Gnathostomata (jawed vertebrates) Placodermi Chondrichthyes (cartilaginous fish) Acanthodii Osteichthyes (bony fish) Actinopterygii (ray-finned fish) Sarcopterygii (lobe-finned fish) Actinistia (coelacanths) Dipnoi (lungfish) Tetrapoda Amphibia Amniota Sauropsida/(Reptiles) Aves (Birds) Synapsida Mammalia... Squirrel monkey Baker rode a Jupiter missile into space in 1959 Animals in space originally served to test the survivability of spaceflight before manned space missions were attempted. ... Reverse genetics is an approach to discovering the function of a gene that proceeds in the opposite direction of so called forward genetic screens that are more usual in classical genetics. ... Gene expression (also protein expression or often simply expression) is the process by which a genes information is converted into the structures and functions of a cell. ... In genetics, splicing is a modification of genetic information after transcription, in which introns are removed and exons are joined. ... Morpholino oligos are an antisense technology used to block access of other molecules to specific sequences within nucleic acid molecules. ... In biology, mutations are permanent, sometimes transmissible (if the change is to a germ cell) changes to the genetic material (usually DNA or RNA). ...


The results of genetic engineering in these fishes have been used to produce the Glofish, an aquarium pet with fluorescent pigments. Other varieties include golden, sandy and long fin fish. The GloFish is a trademarked brand of genetically-modified fluorescent zebrafish with a bright red fluorescent color. ...


In December 2005, a study of the golden strain identified the gene responsible as SLC24A5, a solute carrier that appears to be required for melanin production. The orthologous gene was then characterized in humans and a one base pair difference was found to segregate strongly between fair skinned Europeans and dark skinned Africans. [2] This important study featured on the cover of the academic journal Science and demonstrates the power of zebrafish as a model organism in the relatively new field of comparative genomics. SLC24A5 (solute carrier family 24, member 5) is a gene that is thought to be one of many genes that control skin pigmentation in humans, and therefor define race. ... Broadly, melanin is any of the polyacetylene, polyaniline, and polypyrrole blacks or their mixed copolymers. ... Orthologues are genes thought to have evolved by vertical descent from a common ancestor. ... Science is the journal of the American Association for the Advancement of Science (AAAS). ... // Overview Comparative genomics is the study of relationships between the genomes of different species. ...


Zebra danios as an introduced species

Zebra danios have been introduced and become established in Japan and the United States. The fish has also been sighted in Colombia, presumably escaped from an aquarium fish rearing facility and into local waters. Sweet clover (), introduced and naturalized to the U.S. from Eurasia as a forage and cover crop, supports insect biodiversity. ... A 335,000 U.S. gallon (1. ...


Former Names and Synonyms

  • Barilius rerio
  • Cyprinus chapalio
  • Brachydanio rerio
  • Cyprinus rerio
  • Danio lineatus
  • Nuria rerio
  • Perilampus striatus

See also

Species of Danionin Danio Danio albolineatus Danio abolineatus var pulcher Danio abolineatus var tweediei Danio choprae Danio dangila Danio feegradei Danio kerri Danio kyathit var spotted Danio kyathit var striped Danio meghalayensis Danio nigrofasciatus Danio roseus Danio rerio Danio rerio var frankei Danio sp aff kerri Danio sp aff kyathit... A vast number of species of fish have been successfully kept in the home aquarium. ... A spotted colour morph of Danio rerio. ...

External links

  • The Zebrafish Information Network
  • Danio rerio

References

  • "Danio rerio" (TSN 163699). Integrated Taxonomic Information System. N.p.: Integrated Taxonomic Information System, 2004. Accessed on 12 November 2004.
  • "Danio rerio". FishBase. Ed. Ranier Froese and Daniel Pauly. October 2004 version. N.p.: FishBase, 2004.
  • Lambert, Derek J (1997). Freshwater Aquarium Fish, Page 19, Edison, New Jersey: Chartwell Books. ISBN 0-7858-0867-1.
  • Sharpe, Shirlie (2004) Zebra Danio, Your Guide to Freshwater Aquariums [online] Available from: http://freshaquarium.about.com/cs/cyprinids2/p/zebradanio.htm Accessed on December 15, 2004.
  • Zebrafish information network

  Results from FactBites:
 
Zebra Danio Information & Care - Rate My Fish Tank (252 words)
The Zebra Danio or Zebrafish (Brachydanio rerio or Danio rerio) is a tropical fish belonging to the minnow family (Cyprinidae).
Zebra Danios serve as a common and useful model organism for studies of vertebrate development, because it reproduces very easily, passing from the egg to the larvae stage in less than three days.
Zebra Danio are susceptible to Oodinium, or Velvet disease.
Zebra Danio - Wikipedia, the free encyclopedia (755 words)
The Zebra Danio or Zebrafish (Brachydanio rerio or Danio rerio) is a tropical fish, commonly kept in aquaria and used for scientific research, belonging to the minnow family (Cyprinidae).
Zebra Danio are susceptible to Oodinium, or Velvet disease.
Zebra Danios serve as a common and useful model organism for studies of vertebrate development and gene function because they reproduce very easily, passing from the egg to the larvae stage in less than three days.
  More results at FactBites »

 
 

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