The Azores chromis or Atlantic chromis (''Chromis limbata'') is a species of

damselfish Damselfish are those within the subfamilies Abudefdufinae, Chrominae, Lepidozyginae, Pomacentrinae, and Stegastenae within the family Pomacentridae. Most species within this group are relatively small, with the largest species being about 30 ...

from the family

Pomacentridae 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 Perco ...

which is found in the

Macaronesian Islands Macaronesia (Portuguese: ''Macaronésia,'' Spanish: ''Macaronesia'') is a collection of four volcanic archipelagos in the North Atlantic, off the coasts of Africa and Europe. Each archipelago is made up of a number of Atlantic oceanic islands ...

of the temperate eastern

Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...

and has been reported from coastal regions of western Africa.

Description

''Chromis limbata'' is greyish-brown in colour with a dark

dorsal fin A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through conv ...

anal fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as se ...

and distal margin of the

caudal fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as se ...

, with its proximate part being whitish. When spawning, the male develops a slightly purple hue as its courtship colours. It has a large eye and a strongly protractile mouth which reaches the vertical from eye. There are three rows of small canine-like teeth on the jaws. The dorsal fin has 14 spines and 11-12 soft rays while the anal fin has 2 spines and 10-12 soft rays. It grows to 12 cm

standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish m ...

Distribution

''Chromis limbata'' occurs in the

Azores ) , motto =( en, "Rather die free than subjected in peace") , anthem= ( en, "Anthem of the Azores") , image_map=Locator_map_of_Azores_in_EU.svg , map_alt=Location of the Azores within the European Union , map_caption=Location of the Azores wi ...

and

Madeira ) , anthem = ( en, "Anthem of the Autonomous Region of Madeira") , song_type = Regional anthem , image_map=EU-Portugal_with_Madeira_circled.svg , map_alt=Location of Madeira , map_caption=Location of Madeira , subdivision_type=Sovereign st ...

which are part of

Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...

and in the

Canary Islands The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At their closest point to the African mainland, they are west of Morocc ...

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...

. It has also been reported off the coast of western Africa from

Senegal Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣𞤭 � ...

Pointe Noire Pointe-Noire (; kg, Njinji, french: Ndjindji with the letter d following French spelling standards) is the second largest city in the Republic of the Congo, following the capital of Brazzaville, and an autonomous department since 2004. Before ...

, Congo. It is apparently replaced in the

Cape Verde Islands , national_anthem = () , official_languages = Portuguese , national_languages = Cape Verdean Creole , capital = Praia , coordinates = , largest_city = capital , demonym ...

by the

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Lubbock's chromis ('' Chromis lubbocki''). Small numbers of ''C. limbata'' have been recorded off islands in Santa Catarina in southern

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

and these may be vagrants or may have been introduced through discharge of ships' ballast water.

Biology

The adults of ''Chromis limbata'' occur in rocky reefs and sandy-weedy areas, with a depth range of 5–45 meters. They are

oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and ...

and form pairs to breed, the male clears a space on the substrate for the female to lay the eggs in, the eggs adhere to the substrate and the male guards and aerates them. It is commonest between depths of 5m to 50 m. It can either be found close to the sea bed or it forms pelagic schools. It feeds on small benthic or planktonic invertebrates.

Taxonomy

It was formerly considered conspecific with ''

Chromis chromis ''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. Description ''Chromis chromis'' has an oval and laterally compressed bo ...

'' but in some areas the two species are sympatric.

Uses

''Chromis limbata'' is a valued food fish in Madeira and is subject to a small scale artisanal fishery, especially off the south and east of the island.

References

External links

* {{DEFAULTSORT:chromis, Azores Azores chromis Fauna of the Azores Fauna of Macaronesia Azores chromis Taxa named by Achille Valenciennes