| Chromis ovalis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Family: | Pomacentridae |
| Genus: | Chromis |
| Species: | C. ovalis |
| Binomial name | |
| Chromis ovalis (Steindachner, 1900) | |
Chromis ovalis, commonly known as oval chromis, is a species of damselfish endemic to the Hawaiian archipelago. [1] [2]
Although they are commonly smaller fish, they can get up to 9 inches in length, and are grey in color with a blue iridescent, metallic like finish. [3] The younger fish have a yellow dorsal fin with blue tips on it while the older ones on the other hand get more dull in color as they get older. [3] This species feeds on plankton including copepods. [4] This species has high haplotype diversities. [2]
Chromis ovalis is endemic to the Hawaiian Islands and tends to live near remote islands. [3] They can be found as schools in rocky areas as deep as 20 feet. [5]
The males of this species create nests which are around 3 feet apart in short term nesting areas. [5] In order for the males to get a mate, similar to a mating dance, the male jumps to gain the females attention, if the female is interested then she follows the male to the nesting area to lay her eggs. [5]
Pomacentridae is a family of ray-finned fish, comprising the damselfishes and clownfishes. This family were formerly placed in the order Perciformes but are now regarded as being incertae sedis in the subseries Ovalentaria in the clade Percomorpha. They are primarily marine, while a few species inhabit freshwater and brackish environments. They are noted for their hardy constitutions and territoriality. Many are brightly colored, so they are popular in aquaria.
The sticklebacks are a family of ray-finned fishes, the Gasterosteidae which have a Holarctic distribution in fresh, brackish and marine waters. They were thought to be related to the pipefish and seahorses but are now thought to be more closely related to the eelpouts and sculpins.
The blue-footed booby is a marine bird native to subtropical and tropical regions of the eastern Pacific Ocean. It is one of six species of the genus Sula – known as boobies. It is easily recognizable by its distinctive bright blue feet, which is a sexually selected trait and a product of their diet. Males display their feet in an elaborate mating ritual by lifting them up and down while strutting before the female. The female is slightly larger than the male and can measure up to 90 cm (35 in) long with a wingspan up to 1.5 m (5 ft).
The Galápagos hawk is a large hawk endemic to most of the Galápagos Islands.
The great frigatebird is a large seabird in the frigatebird family. There are major nesting populations in the tropical Pacific Ocean, such as Hawaii and the Galápagos Islands; in the Indian Ocean, colonies can be found in the Seychelles and Mauritius, and there is a tiny population in the South Atlantic, mostly on and around St. Helena and Boatswain Bird Island.
The New Zealand demoiselle, Chromis dispilus, is a damselfish of the genus Chromis, found between North Cape and East Cape of the North Island of New Zealand to depths of about 60 metres, off rocky coasts. Its length is between 15 and 20 cm. Males are highly territorial as they defend their nesting area from other males and other species. These aggressive fish defend their eggs laid by their female counterpart. Spawning occurs between the months of December and March. The New Zealand demoiselle's territory and nesting grounds of this fish are usually the largest in a medium population density. Like most territorial fish they tend to spawn more in higher densities of the same species compared to lower densities. Aggression levels tend to be higher amount higher densities of the same species and lower levels in smaller densities. Aggression also tends to be higher during spawning then during egg defending. Elevated plasma levels of androgen testosterone and 11-Ketotesterone are associated with the heighten levels of aggression shown by the males.
Chromis is a genus of fish in the family Pomacentridae. While the term damselfish describes a group of marine fish including more than one genus, most damselfish are in the genus Chromis. These fish are popular aquarium pets due to their small size, tolerance for poor water quality, and bright colors, though their lifespans tend to be shorter than other fish.
The blacksmith, also known as the blacksmith chromis and blacksmith damselfish, is a species of fish in the damselfish family. It is native to the subtropical northeastern Pacific Ocean, where it range is from Monterey Bay, California, USA, to central Baja California, Mexico. This small fish is associated with rocky reefs and kelp forests.
The brown noddy or common noddy is a seabird in the family Laridae. The largest of the noddies, it can be told from the closely related black noddy by its larger size and plumage, which is dark brown rather than black. The brown noddy is a tropical seabird with a worldwide distribution, ranging from Hawaii to the Tuamotu Archipelago and Australia in the Pacific Ocean, from the Red Sea to the Seychelles and Australia in the Indian Ocean and in the Caribbean to Tristan da Cunha in the Atlantic Ocean. The brown noddy is colonial, usually nesting on elevated situations on cliffs or in short trees or shrubs. It only occasionally nests on the ground. A single egg is laid by the female of a pair each breeding season. In India, the brown noddy is protected in the PM Sayeed Marine Birds Conservation Reserve.
Pelvicachromis pulcher is a freshwater fish of the cichlid family, endemic to Nigeria and Cameroon. It is popular amongst aquarium hobbyists, and is most commonly sold under the name kribensis, although it has other common names, including various derivatives and color morphs of the kribensis: krib, common krib, red krib, super-red krib and rainbow krib, along with rainbow cichlid and purple cichlid.
Chromis viridis is a species of damselfish. Individuals tend to be iridescent apple-green and light blue, and reach a maximal length of 10 cm.
The queen angelfish, also known as the blue angelfish, golden angelfish, or yellow angelfish, is a species of marine angelfish found in the western Atlantic Ocean. It is a benthic warm-water species that lives in coral reefs. It is recognized by its blue and yellow coloration and a distinctive spot or "crown" on its forehead. This crown distinguishes it from the closely related and similar-looking Bermuda blue angelfish, with which it overlaps in range and can interbreed.
Protomelas kirkii is a species of cichlid endemic to Lake Malawi where it is most commonly found in areas vegetated with Vallisneria. This species can reach a length of 18 centimetres (7.1 in) TL. This species can also be found in the aquarium trade.
Heterandria formosa is a species of livebearing fish within the family Poeciliidae. This is the same family that includes familiar aquarium fishes such as guppies and mollies. Heterandria formosa is not as commonly kept in aquaria as these species. Despite the common name "least killifish", it belongs to the family Poeciliidae and not to one of the killifish families. H. formosa is one of the smallest fish species; the 1991 Baensch Aquarium Atlas listed it as the 7th smallest fish in the world, and as of 2006 it remains the smallest fish species found in North America.
Chrysiptera parasema, also known as yellowtail damselfish, yellowtail blue damsel, goldtail demoiselle and other variations, is a saltwater species of fish from the Indo-Pacific. It was described by Henry Weed Fowler in 1918.
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.
Istiblennius zebra, Pāoʻo, the zebra blenny, is a species of combtooth blenny found in tide pools around the Hawaiian Islands. It is also commonly known as the zebra rockskipper, rockskipper, jumping jack or the gori.
Chlorurus perspicillatus, known officially by the English name, spectacled parrotfish, given by professional ichthyologists and Ichthyology or uhu-uliuli as a well-established Hawaiian name for many hundreds of years, is a species of marine fish in the family Scaridae. Found only in the Eastern Central Pacific Hawaiian Islands, it inhabits lagoons and seaward reefs
Chromis verater, commonly known as threespot chromis, is a species of damselfish endemic to Hawaii. The species is planktivorous.
Pycnochromis hanui, commonly known as chocolate-dip chromis, is a species of damselfish endemic to Hawaii.
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