Thalassoma jansenii (Bleeker 1856)

Thalassoma jansenii és una espècie de peix de la família dels làbrids i de l'ordre dels perciformes.

Morfologia

Els mascles poden assolir els 20 cm de longitud total.^[2]

Distribució geogràfica

Es troba des de les Maldives fins a Fidji i el sud del Japó.^[2]

Referències

Bibliografia

• Bleeker, P. 1856. Beschrijvingen van nieuwe of weinig bekende vischsoorten van Manado en Makassar, grootendeels verzameld op eene reis naar den Molukschen Archipel in het gevolg van den Gouverneur Generaal Duymaer van Twist. Acta Soc. Sci. Indo-Neerl. v. 1: 1-80.
• Helfman, G., B. Collette i D. Facey: The diversity of fishes. Blackwell Science, Malden, Massachusetts (Estats Units), 1997.
• Moyle, P. i J. Cech.: Fishes: An Introduction to Ichthyology, 4a edició, Upper Saddle River (Nova Jersey, Estats Units): Prentice-Hall. Any 2000.
• Nelson, J.: Fishes of the World, 3a edició. Nova York, Estats Units: John Wiley and Sons. Any 1994.
• Wheeler, A.: The World Encyclopedia of Fishes, 2a edició, Londres: Macdonald (1985).

Enllaços externs

• «Thalassoma jansenii». Catalogue of Life. (anglès) (anglès)

Jansen's wrasse (Thalassoma jansenii) is a species of ray-finned fish, a wrasse from the family Labridae which is native to the Indian Ocean and Pacific Ocean. In the south-western Pacific Ocean it is replaced by sibling species black-barred wrasse (Thalaaoma nigrofasciatum). It can be found in the aquarium trade.^[2]

Description

In its initial phase Jansen's wrasse is white with three black bars, the first of which is on upper half of head and anterior body and contains a yellow strip on the margin of the gill cover. The second band goes across dorsal fin and ends at the anus while the third covers most of the body and the rear parts of dorsal and anal fins. The terminal phase males have yellow between black bars. The pectoral fins have a bluish colour.^[1] This species can grow to 20 cm (7.9 in) in total length. It has 8 spines and 13 soft rays in its dorsal fin and 3 spines and 11 soft rays in its anal fin.^[2]

Distribution

Jansen's wrasse is found in the Indian Ocean and the Pacific Ocean from the Maldiives to Fiji, north to Japan and south to Shark Bay, Western Australia.^[1]

Habitat and biology

Jansen's wrasse is found in coral reefs and over reef flats at depths of 1–15 metres (3.3–49.2 ft), however, it is not normally encountered at depth greater than 12 metres (39 ft). It is a carnivore and its diet includes benthic invertebrates and larger animals.^[1] It is a social species which occurs in groups.^[2] Like many other coral reef wrasses, this species swims actively over the reef using solely their pectoral fins for thrust (known as labriform locomotion).^[3] This species is a protogynous hermaphrodite, some females change into males when there are no males available. They have also been observed to act as cleaner fish.^[4]

Human usage

Jansen's wrasse is collected for the aquarium trade.^[1]

Species description

Jansen's wrasse was first formally described as Julis jansenii in 1856 by the Dutch zoologist and military doctor Pieter Bleeker (1819-1878) with a type locality given as Manado on Sulawesi.^[5]

The fish is named in honor of Albert Jacques Frédéric Jansen (d. 1861), an administrator in the Dutch East Indies who provided the type specimen.^[6]

References

Thalassoma jansenii es una especie de peces de la familia Labridae en el orden de los Perciformes.

Morfología

• Los machos pueden llegar alcanzar los 20 cm de longitud total.^[1]​

Distribución geográfica

Se encuentra desde las Maldivas hasta Fiyi y el sur del Japón.

Referencias

Bibliografía

• Eschmeyer, William N., ed. 1998. Catalog of Fishes. Special Publication of the Center for Biodiversity Research and Information, núm. 1, vol. 1-3. California Academy of Sciences. San Francisco, California, Estados Unidos. 2905. ISBN 0-940228-47-5.
• Fenner, Robert M.: The Conscientious Marine Aquarist. Neptune City, Nueva Jersey, Estados Unidos : T.F.H. Publications, 2001.
• Helfman, G., B. Collette y D. Facey: The diversity of fishes. Blackwell Science, Malden, Massachusetts, Estados Unidos , 1997.
• Hoese, D.F. 1986: . A M.M. Smith y P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlín, Alemania.
• Maugé, L.A. 1986. A J. Daget, J.-P. Gosse y D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Bruselas; MRAC, Tervuren, Flandes; y ORSTOM, París, Francia. Vol. 2.
• Moyle, P. y J. Cech.: Fishes: An Introduction to Ichthyology, 4a. edición, Upper Saddle River, Nueva Jersey, Estados Unidos: Prentice-Hall. Año 2000.
• Nelson, J.: Fishes of the World, 3a. edición. Nueva York, Estados Unidos: John Wiley and Sons. Año 1994.
• Wheeler, A.: The World Encyclopedia of Fishes, 2a. edición, Londres: Macdonald. Año 1985.

Thalassoma jansenii Thalassoma generoko animalia da. Arrainen barruko Labridae familian sailkatzen da.

Banaketa

Erreferentziak

• FishBase.org

Ikus, gainera

• Thalassoma
• Labridae

Thalassoma jansenii is een straalvinnige vissensoort uit de familie van lipvissen (Labridae).^[2] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1856 door Bleeker.

De soort staat op de Rode Lijst van de IUCN als niet bedreigd, beoordelingsjaar 2009.^[1]

詹氏錦魚，又稱大斑錦魚，俗名四齒、礫仔、六帶龍、柳冷仔、青汕冷、青銅管，為輻鰭魚綱鱸形目隆頭魚亞目隆頭魚科的其中一種。

分布

本魚印度西太平洋區，包括東非、莫三比克海峽、模里西斯、塞席爾群島、馬爾地夫、日本、台灣、菲律賓、中國南海、泰國、馬來西亞、印尼'新幾內亞'新喀里多尼亞、密克羅尼西亞、帛琉、諾魯、馬里亞納群島、馬紹爾群島、澳洲、斐濟群島等海域。

深度

水深1至15公尺。

特徵

本魚體稍長且側扁。吻部短；上下頜具一列尖齒，前方各具2犬齒，無後犬齒。幼魚與成魚體色變化不大，幼魚體白色，上半部具不規則的黑色寬橫帶，尾鰭截形；成魚的斜黑橫帶較寬長，且有黃色夾雜其中，尾鰭上下葉略為延長。背鰭硬棘8枚、背鰭軟條13枚、臀鰭硬棘3枚、臀鰭軟條11枚。體長可達20公分。

生態

本魚棲息於沿岸珊瑚礁區，有時亦可在潮池中發現牠，活動力強，主要以擺動胸鰭的方式游泳，屬肉食性，以底棲無脊椎動物、小魚或浮游生物為食。

經濟利用

常作為觀賞魚，可食用。

参考文献

• 台灣魚類資料庫