Rite Dentu

Die Groottand-botvis (Pseudorhombus arsius) is 'n vis wat voorkom in die Indiese-Pasifiese area en aan die ooskus van Afrika vanaf die Rooisee tot by Algoabaai. In Engels staan die vis bekend as die Largetooth flounder.

Voorkoms

Die lyf is plat, ovaal en die oë is naby mekaar. Die dorsale vin is lank, dit begin by die snoet en strek tot by die basis van die stertvin. Die stertvin is wigvormig. Die oogkant (bokant) is bruinerig gevlek met 'n swart kol waar die sylyn begin. Die vis word tot 44 cm groot.

Habitat

Die onvolwasse vis leef in riviermondings en eet skaaldiere. Die volwasse visse leef op sanderige bodems in water wat tot 100 m diep is en eet vis, garnale, krappe en wurms.

Sien ook

• Alfabetiese lys van visse
• Lys van Suider-Afrikaanse visse volgens wetenskaplike name
• Lys van varswater visfamilies
• Lys van visfamilies

Bron

• Coastal Fishes of Southern Africa. Phil & Elaine Heemstra. 2004. ISBN 1-920033-01-7

Eksterne skakel

• http://fishbase.org/summary/Pseudorhombus-arsius.html

Hierdie artikel is ’n saadjie. Voel vry om Wikipedia te help deur dit uit te brei.

Pseudorhombus arsius, the largetooth flounder, is a species of left-eyed flatfish, that is the dark side with the eyes on the adult fish is the left side of the fish's body, from the family Paralichthyidae. As Rhombus polyspilos it was named as the type species of the genus Pseudorhombus. It is an Indo-Pacific species and is fished for by both recreational and commercial fisheries.

Description

Pseudorhombus arsius has an oval-shaped body which has a depth which is 1.8 to 2.3 times its standard length. The head has a slight notch in front of upper eye. The eyes are on the left side and have a diameter which is a fifth of the length of the head and the snout has a length equal to or slightly greater than the diameter of the eye. The dorsal fin starts in front of its upper eye and of the nostrils on blind side. The mouth forms a deep cleft with the maxilla normally almost half the length of the head. The jaws and teeth are nearly equally developed on both jaws. The upper jaw reaches to below the posterior edge of the lower eye. There are several pairs of moderately large caniform teeth in the anterior parts of both jaws, which are of unequal size and arranged in a single row. These number 5 to 8 in the lower jaw on the eyed side, and 6 to 13 lateral teeth in lower jaw of blind side which are more robust and more widely spaced than those of upper jaw. The gill rakers are pointed, longer than they are broad.^[2]

It has simple fin-rays which number 71–84 in the dorsal fin, 53–62 in the anal fin and 11–13 in the pectoral fin. The lateral line curves above the pectoral fin has 69-81 scales and there are 36 vertebrae. In the dorsal fin the longest rays are found in the posterior third and only the rearmost three or four rays are branched, as at the last five anal fin rays. Two dark spots are situated on the central part of its dorsal surface, one just to the posterior of the pectoral fin and the second is midway between that the forward spot and the tail. The body is greenish to pale brownish in colour and is normally marked with variously sized rings, and there is frequently two dark blotches on the straight and the curved sections of the lateral line with a smaller blotch which is half-way to the caudal-fin peduncle. It can vary the colour of the body so that it closely matches the surface the fish rests on. They grow to 50 cm, but 30 cm in length is the more usual size^[2]

Distribution

Pseudorhombus arsius is found in the tropical and temperate waters from the Persian Gulf and the eastern coast of Africa as far south as Algoa Bay and possibly even Knysna to Fiji in the western Pacific, to southern Japan in the north and as far south as the northern coast of Australia.^[1] It may extend as far south as the Bass Strait.^[3]

Habitat and biology

Pseudorhombus arsius occurs in shallow waters and in estuaries where the substrate consists of mud and sand bottoms, to depths of 200 m. The juveniles are common in brackish water. When they are spawning they are found in shallow water on sandbanks and close to shore. They move to deeper waters in the winter. They are predators which prey mainly on benthic animals. The spawning season runs for 3 to 4 months, from April to July and peaks in April and May, during which they move into the sandy shallows close to the shore. The spawn is laid in a single batch. They mature when they attain a total length of between 16 and 17 cm in total length. The sex ratio is always biased towards females and the fecundity of the fish is dependent on its total length and body weight.^[2]

Fisheries

Pseudorhombus arsius is subjected to a minor commercial fishery in West Bengal in the estuary of the Hooghly River.^[4] Otherwise it is a quarry for recreational angling.^[2]

References

Pseudorhombus arsius Pseudorhombus generoko animalia da. Arrainen barruko Paralichthyidae familian sailkatzen da.

Banaketa

Espezie hau Agulhasko itsaslasterran aurki daiteke.

Erreferentziak

• FishBase.org

Ikus, gainera

• Pseudorhombus
• Paralichthyidae

Pseudorhombus arsius is een straalvinnige vissensoort uit de familie van schijnbotten (Paralichthyidae).^[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1822 door Hamilton.

• Pleuronectes arsius Hamilton, 1822
• Pseudorhombus andersoni Gilchrist, 1904
• Pseudorhombus arius (Hamilton, 1822)

Arsja^[2] (Pseudorhombus arsius) – gatunek ryby flądrokształtnej z rodziny Paralichthyidae.

Występowanie

Występuje w Oceanie Indyjskim i Pacyfiku od zatoki Algoa (prawdopodobnie również okolice miasta Knysna w Południowej Afryce) i Zatoki Perskiej po południową Japonię, Filipiny i północną Australię^[3].

Żyje w wodach przybrzeżnych na głębokości 0–200^[3] m, na dnie piaszczystym lub mulistym. Młode osobniki często w słonawych ujściach rzek.

Cechy morfologiczne

Zazwyczaj osiąga 30 cm (maks. 45 cm) długości^[3]. 36 kręgów. Część zębów w przedniej części obu szczęk dość duża. W głębi pyska, z boku żuchwy, 6 do 13 zębów. Na pierwszej parze łuków skrzelowych 15–22 wyraźne, dłuższe niż szersze, wyrostki filtracyjne, 7 na górze, 8–15 na dole. W płetwie grzbietowej 71–84 promienie, w płetwie odbytowej 53–62 promienie. W płetwie piersiowej znajdującej się po stronie oka 11–13 promieni.

Odżywianie

Żywi się fauną denną.

Rozród

Dojrzewa płciowo przy długości 16–17 cm.

Znaczenie

Łowiony jest przez wędkarzy oraz rybaków, sprzedawany świeży.

Przypisy

Cá bơn vằn răng to (Danh pháp khoa học: Pseudorhombus arsius), còn gọi là cá lưỡi trâu, là một loài cá bơn trong họ Paralichthyidae^[4][5][6] phân bố ở Đông châu Phi, Ấn Độ, Úc, Indonesia, Philippin, Malaysia, Trung Quốc, Nhật Bản, Thái Lan, Việt Nam.

Đặc điểm

Thân hình bầu dục, dẹp bên. Cả hai mắt đều ở phía bên trái của thân. Răng nanh có từ 6 - 8 chiếc ở hàm phía dưới (phía không có mắt). Khởi điểm của vây lưng bắt đầu ở phía trước mắt trên. Gốc vây ngực ở phía có mắt dầy hơn ở phía không có mắt. Phía có mắt phủ vảy lược, nhỏ, phía không có mắt phủ vảy tròn. Phía có mắt màu nâu hoặc xám, có nhiều đốm màu nâu. Phía không có mắt màu trắng hoặc màu hồng. Kích cỡ khai thác 110 – 275 mm, có thể đạt đến 450 mm.

Chú thích

Tham khảo

• Hensley, D.A. (1986) Bothidae., p. 854-863. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.
• Amaoka, K. and D.A. Hensley (2001) Paralichthyidae. Sand flounders., p. 3842-3862. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome.
• Nielsen, J.G. (1984) Bothidae., In W. Fischer and G. Bianchi (eds.) FAO species identification sheets for fishery purposes. Western Indian Ocean fishing area 51. Vol. 1. FAO, Rome. pag. var.
• Desoutter, M. (1986) Bothidae., p. 428-429. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2.
• Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (red.) (2011). ”Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist.”. Species 2000: Reading, UK. Läst ngày 24 tháng 9 năm 2012.
• Cabanban, A., E. Capuli, R. Froese and D. Pauly (1996) An annotated checklist of Philippine flatfishes: ecological implications., Presented at the Third International Symposium on Flatfish Ecology, 2-ngày 8 tháng 11 năm 1996, Netherlands Institute for Sea Research (NIOZ), Texel, The Netherlands.
• Amaoka, K. and D.A. Hensley (2001) Paralichthyidae. Sand flounders., p. 3842-3862. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome.
• Masuda, H. and G.R. Allen (1993) Meeresfische der Welt - Groß-Indopazifische Region., Tetra Verlag, Herrenteich, Melle. 528 p.
• Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (red.) (2011). Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist.. Species 2000: Reading, UK.. Truy cập ngày 24 tháng 9 năm 2012.

大牙斑鲆（学名：Pseudorhombus arsius），又名大齿斑鲆、大齿鲽、破板、大齿扁鱼、地鱼、地宝、扁鱼，为牙鲆科斑鲆属的鱼类。分布于西达波斯湾及南非德班、南达澳大利亚新南威尔斯、北到日本南部海区以及海南岛、两广到台湾及浙江舟山等海域等，属于热带及暖温带底层海鱼。该物种的模式产地在恒河。^[1]

参考文献

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