dcsimg

Diagnostic Description

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This species is distinguished by the following characters: moderately deep body, its greatest depth 2.4-2.9 in SL; distinct groove or pit from nostrils to the front of the eye; preopercular notch and knob moderately developed; vomerine tooth patch narrow crescentic, without a medial posterior extension; gill rakers of first gill arch 6-7 + 16 = 22-23 (including rudiments). Colour of body dark reddish-brown with faint dark stripes; young and some adults with two silvery-white spots on back; pectoral fins pink with dorsal edge prominently black; juveniles sometimes have caudal end of body and the tail white. mimicking Chromis damselfishes (Ref. 9821, 90102). Description: Snout somewhat pointed; head dorsal profile rounded; preorbital bone broad, width usually greater than eye diameter; scale rows on back rising obliquely above lateral line (Ref. 9821).
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Susan M. Luna
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Diseases and Parasites

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Stephanostomum Infestation. Parasitic infestations (protozoa, worms, etc.)
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Allan Palacio
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Morphology

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Dorsal spines (total): 10; Dorsal soft rays (total): 13 - 14; Analspines: 3; Analsoft rays: 8
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Trophic Strategy

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Occurs inshore (Ref. 75154). Inhabits coral reefs, including sheltered lagoons and outer reefs (Ref. 30573, 58652). Enters lake (Ref. 13446). Usually found singly, often adjacent to steep outer reef slopes, but occasionally found in groups (Ref. 9710). Feeds mainly on fishes, but also takes shrimps, crabs, amphipods, stomatopods, gastropods and urochordates. Large fish from oceanic areas in the western Pacific are often ciguatoxic, e.g., in Tuvalu (Ref. 9513).
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Biology

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Adults inhabit coral reefs, including sheltered lagoons and outer reefs (Ref. 30573). Usually found singly, often adjacent to steep outer reef slopes, but occasionally found in groups (Ref. 9710). Feeds mainly on fishes, but also take shrimps, crabs, amphipods, stomatopods, gastropods and urochordates. Large fish from oceanic areas in the western Pacific are often ciguatoxic, e.g., in Tuvalu (Ref. 9513). Caught mainly with handlines and bottom longlines (Ref. 9821). Utilized fresh and dried-salted (Ref. 9987). Juveniles mimic Chromis damselfishes (Ref. 90102).
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Importance

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fisheries: commercial; gamefish: yes
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分布

provided by The Fish Database of Taiwan
廣泛分布於印度-西太平洋區。西起非洲東岸,東至馬貴斯(Marquesas )及萊恩群島( Line Islands),北自琉球群島,南迄澳洲。台灣主要分布於南部海域。
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臺灣魚類資料庫
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利用

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許多沿岸國家重要之食用魚。主要漁法為一支釣及底部延繩釣為主。一般以煎食或紅燒為食。唯大型魚因食物鏈之故,內臟可能累積熱帶海魚毒,在國外有食物中毒之例。
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描述

provided by The Fish Database of Taiwan
體長橢圓形,背緣呈弧狀彎曲。兩眼間隔平坦。鼻孔下方有一溝通至眼前。前鰓蓋缺刻不顯著,淺而缺如。鰓耙數23。上下頜兩側具尖齒,外列齒較大;上頜前端具犬齒數顆;下頜前端則為排列疏鬆之圓錐狀齒;鋤骨齒帶三角形,其後方沒有突出部;腭骨亦具絨毛狀齒;舌面無齒。體被中大櫛鱗,頰部及鰓蓋具多列鱗;背鰭、臀鰭和尾鰭基部大部分亦被細鱗;側線上方的鱗片斜向後背緣排列,下方的鱗片則與體軸平行。背鰭軟硬鰭條部間無明顯深刻;臀鰭基底短而與背鰭軟條部相對;背鰭硬棘X,軟條13-14;臀鰭硬棘III,軟條8;胸鰭長,末端達臀鰭起點;尾鰭叉形。體一致為赤褐色,但體背部顏色較深且沿背緣有二個白斑。奇鰭及腹鰭外緣顏色亦較深。
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棲地

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棲息於珊瑚礁區,包括潟湖區或外礁,水深10-70公尺處。通常獨自巡游於礁區四周尋找獵物,以魚類為主食,偶而捕食甲殼類、端腳類等。
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Lutjanus bohar

provided by wikipedia EN

Lutjanus bohar, the two-spot red snapper, the red bass, twinspot snapper or bohar snapper, is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It has a wide Indo-Pacific distribution.

Taxonomy

Lutjanus bohar was first formally described as Sciaena bohar in 1775 with no type locality given, although it is thought to be the Red Sea.[3] The description is attributed to the Finnish-born Swedish explorer Peter Forsskål by FishBase,[2] but the Catalog of Fishes attributes as follows

Fabricius [J. C.] in Niebuhr (ex Forsskål) 1775:46, xi [Descriptiones animalium (Forsskål)

Catalog of Fishes then states that the valid binomial is Lutjanus bohar (Fabricius, 1775).[3]

The specific name bohar is the Arabic word used for this fish in the Red Sea.[4]

Description

The two-spot red snapper can reach a length of 90 cm (35 in), though most do not exceed 76 cm (30 in). The greatest recorded weight for this species is 12.5 kg (28 lb). These large reddish tropical snappers show darker fins, a rounded profile of head and a groove running from the nostrils to the eyes. They have 10 dorsal spines and 3 anal spines. Juveniles and some adults have two silvery-white spots (hence the common name) on the back close to their dorsal fins, while larger adults lose the spots and become mostly red.[5] Large adults may cause ciguatera poisoning.[5]

This species is a commercially important species[1] and is also sought-after as a game fish.[6]

Biology

Close-up

It is a long-lived and slow-growing species which reaches maturity at 8–9 years, and the oldest recorded individual is 56.[5] These fishes are carnivorous, mostly feeding on other fishes, crustaceans and molluscs.[5]

Adult snappers often form large schools on the outer reefs or above sandy areas, mainly to form spawning aggregations. Small brownish juveniles mimic damselfishes of the genus Chromis in order to approach their prey.[5]

Two chambered nautiluses feeding on a two-spot red snapper.

The chambered nautilus, Nautilus pompilius, is known to scavenge deceased snappers. A pair of nautiluses recorded feeding on a snapper at 703 metres below the surface constitutes the deepest recorded sighting of any nautilus species.[7]

Distribution

This species is native to the Indian Ocean. It is widespread in the Indo-Pacific from the east African coast, north to the Red Sea, to the western Pacific Ocean, north to the Ryukyu Islands, south to Australia.

Habitat

It is a coral reef inhabitant, being found at depths from 4 to 180 m (13 to 591 ft), though usually between 10 and 70 m (33 and 230 ft).[5]

Bibliography

Juvenile Lutjanus bohar with two white spots on back
  • Allen, G.R., 1985. FAO Species Catalogue. Vol. 6. Snappers of the world. An annotated and illustrated catalogue of lutjanid species known to date. FAO Fish. Synop. 125(6):208 p. Rome: FAO.
  • Frimodt, C., 1995. Multilingual illustrated guide to the world's commercial coldwater fish. Fishing News Books, Osney Mead, Oxford,. 215 p.
  • Fenner, Robert M.: The Conscientious Marine Aquarist. Neptune City, USA: T.F.H. Publications, 2001.
  • Helfman, G., B. Collette y D. Facey: The diversity of fishes. Blackwell Science, Malden, Massachusetts, USA, 1997.
  • Hoese, D.F. 1986: . A M.M. Smith y P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin, Germany.
Two-spot red snapper
  • 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).
  • Moyle, P. y J. Cech.: Fishes: An Introduction to Ichthyology, 4th. Ed., Upper Saddle River, USA: Prentice-Hall. Año 2000.
  • Nelson, J.: Fishes of the World, 3rd ed.. New York: John Wiley and Sons.
  • Wheeler, A.: The World Encyclopedia of Fishes, 2nd. Ed. London: Macdonald. 1985.

References

  1. ^ a b Russell, B.; Smith-Vaniz, W.F.; Lawrence, A.; Carpenter, K.E.; Myers, R. (2016). "Lutjanus bohar". IUCN Red List of Threatened Species. 2016: e.T194363A2321975. doi:10.2305/IUCN.UK.2016-3.RLTS.T194363A2321975.en. Retrieved 19 November 2021.
  2. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2021). "Lutjanus bohar" in FishBase. February 2021 version.
  3. ^ a b Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Lutjanus". Catalog of Fishes. California Academy of Sciences. Retrieved 4 June 2021.
  4. ^ Christopher Scharpf & Kenneth J. Lazara, eds. (5 January 2021). "Order LUTJANIFORMES: Families HAEMULIDAE and LUTJANIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 4 June 2021.
  5. ^ a b c d e f Bray, Dianne. "Red Bass, Lutjanus bohar". Fishes of Australia. Retrieved 29 September 2014.
  6. ^ Steve Waters (19 February 2020). "Fishing for Red Snapper Experts explain how to catch red snapper". Sport Fishing Magazine. Retrieved 4 June 2021.
  7. ^ Dunstan, A. J.; Ward, P. D.; Marshall, N. J. (2011). "Vertical distribution and migration patterns of Nautilus pompilius". PLOS ONE. 6 (2): e16311. doi:10.1371/journal.pone.0016311. PMC 3043052. PMID 21364981.

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Lutjanus bohar: Brief Summary

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Lutjanus bohar, the two-spot red snapper, the red bass, twinspot snapper or bohar snapper, is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It has a wide Indo-Pacific distribution.

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Description

provided by World Register of Marine Species
Inhabits coral reefs, including sheltered lagoons and outer reefs. Usually found solitarily, often adjacent to steep outer reef slopes. Feeds mainly on fishes, but also takes shrimps, crabs, amphipods, stomatopods, gastropods and urochordates. Large fish from oceanic areas in the western Pacific are often ciguatoxic, e.g. in Tuvalu (Ref. 9513). Utilized fresh and dried-salted (Re. 9987). Reported to grow up 90 cm in length (Ref. 9987). The young have been repported to mimic certain damselfishes of the genus Chromis, such as C. ternatensis (Bleeker) and thereby get closer to their prey .

Reference

Froese, R. & D. Pauly (Editors). (2023). FishBase. World Wide Web electronic publication. version (02/2023).

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