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Diagnostic Description

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Color of head and body pale greenish grey or brown with round dark spots that vary from dull orange-red to dark brown, centers darker than the edges. A large black blotch (or group of black spots) often visible on body at the base of last 4 dorsal-fin spines. Five sub vertical dark bars may be present on body. Dark spots on soft dorsal, caudal and anal fins of juveniles are so close that the pale interspaces form a white reticulum. 95-112 scales in longitudinal series. Scales on body ctenoid in juveniles, becoming cycloid in adults except the area beneath and posterior to pectoral fins. Pyloric caeca 16-18. Further characterized by: elongate body, depth contained 3.0-3.6 times in SL; large head, length is 2.1-2.4 times in SL; snout length 2.0-2.4 times in upper-jaw length; interorbital area narrow, flat to slightly concave, interorbital width 6.8-8.1 times in HL and 3.1-4.0 times in upper jaw length; broadly rounded preopercle, serrae at angle of preopercle slightly enlarged; upper edge of operculum almost straight; posterior nostrils distinctly larger than anterior nostrils; maxilla reaching well past eye, greatest width about twice suborbital depth, maxilla width 6.8-8.1% of standard length; upper-jaw length 21-24% of SL; 2-5 rows of teeth on midlateral part of lower jaw; inner teeth at symphysis of upper jaw are longer than the fixed canines at front of jaw (Ref. 89707). Differs from E. howlandi by its more elongate body and closer-set spots (Ref. 37816).
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Recorder
Estelita Emily Capuli
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Diseases and Parasites

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Iridovirosis. Viral diseases
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Allan Palacio
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Migration

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Oceanodromous. Migrating within oceans typically between spawning and different feeding areas, as tunas do. Migrations should be cyclical and predictable and cover more than 100 km.
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Crispina B. Binohlan
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Morphology

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Dorsal spines (total): 11; Dorsal soft rays (total): 13 - 16; Analspines: 3; Analsoft rays: 8
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Estelita Emily Capuli
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Trophic Strategy

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Found inshore (Ref. 75154).
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Biology

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Adults prefer clear water areas on coral reefs; juveniles have been taken from reef flats and in tide pools, adults found in deeper waters. Solitary and common in lightly fished areas (Ref. 37816). Adults from Oceania almost exclusively feed on fishes (holocentrids, mullid, and pomacentrid); and occasionally, crustaceans (Ref. 89707). Present in the Hong Kong live fish markets (Ref. 27253). Minimum depth reported taken from Ref. 30874. Occasionally ciguatoxic (Ref. 37816). Reports of sizes in excess of 80 cm total length for E. tauvina are probably based on misidentifications of E. coioides, E. malabaricus, and E. lanceolatus; these species grow much bigger than E. tauvina (Ref. 5222, Heemstra pers. comm. 09/04)..
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Crispina B. Binohlan
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Importance

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fisheries: minor commercial; aquaculture: commercial; gamefish: yes; price category: very high; price reliability: questionable: based on ex-vessel price for species in this genus
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Crispina B. Binohlan
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分布

provided by The Fish Database of Taiwan
分布在印度-太平洋區,西起紅海至南非,向東至杜夕島,北至日本,南至澳洲之新南威爾斯及羅得豪島。台灣主要產於北部、西部、東部、蘭嶼及綠島海域。
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臺灣魚類資料庫
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利用

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具經濟性之食用魚,已有人工養殖。一般漁法以延繩網及一支釣捕獲。清蒸食用佳。因食物鰱之故,可能含有熱帶海魚毒。
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描述

provided by The Fish Database of Taiwan
體長橢圓形,側扁而粗壯,標準體長為體高之3.0-3.6倍。頭背部斜直;眶間區微凸。眼小,短於吻長。口大;上下頜前端具小犬齒或無,兩側齒細尖,下頜約2-5列。鰓耙數8-10+17-20。前鰓蓋骨後緣微具鋸齒,下緣光滑。鰓蓋骨後緣具3扁棘。體被細小櫛鱗;側線鱗孔數63-74;縱列鱗數95-112。背鰭鰭棘部與軟條部相連,無缺刻,具硬棘XI,軟條13-16;臀鰭硬棘III枚,軟條8;腹鰭腹位,末端延伸不及肛門開口;胸鰭圓形,中央之鰭條長於上下方之鰭條,且長於腹鰭,但短於後眼眶長;尾鰭圓形。體側及頭部呈淡灰綠色或褐色,散佈著暗橘紅色或深褐色的圓形深色斑點,斑點中央色澤較周圍深;體側另有一大型的暗色斑塊位於背鰭最後四根硬棘之基部上;有些魚會有5條暗色垂直斑紋。
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棲地

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棲息於水質清澈的珊瑚礁區,幼魚常出現在礁盤或潮池中,成魚則通常在較深的水域中。屬肉食性,主要以魚類為食,偶爾攝食甲殼類。
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Greasy grouper

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The greasy grouper (Epinephelus tauvina), also known as the Arabian grouper or greasy rockcod, is an Indo-Pacific fish species of economic importance belonging to the family Serranidae.[3]

Distribution

The greasy grouper occurs in the Red Sea and along the East African coast, east to the Pitcairn group, north to Japan, and south to Lord Howe Island. It is not common in Fiji, Tonga, or French Polynesia.[1]

Habitat

The species inhabits clear-water areas on coral reefs (at depths to 50 m), although juveniles may venture into reef flats, tidepools, and mangrove estuaries.[1]

Description

Epinephelus tauvina from French Polynesia

Epinephelus tauvina grows up to 75 cm (30 inches) in length.[1] These fish have a wide, upward-facing mouth with rather thick lips. Their heads and bodies are pale greenish grey or brown with round spots, varying from orange-red to dark brown. A group of black spots may be visible on the body at the base of the rear of the dorsal fin. Five vertical darker shaded bars may also be present on their bodies.

It is similar to E. corallicola and E. howlandi, which, however, have shorter bodies and spots less closely spaced.[2]

Due to confusion about identifying species, much of the earlier (particularly before 1984) literature referring to E. tauvina may actually refer to other species of grouper, including Epinephelus coioides, Epinephelus malabaricus and Epinephelus lanceolatus.[1]

Biology

The greasy grouper is a long-lived fish with a very slow growth rate. It is a protogynous hermaphrodite.[4][5] Greasy groupers are top predators on the reef; they mainly feed on small fish and sometimes crustaceans.[1]

Fisheries

The greasy grouper is caught in recreational fisheries (including spearfishing and hook-and-line fishing) and plays a major role in commercial fisheries. It is also found in the aquarium trade.[1] Total production in 2013 was 16,234 tonnes (combined recreational fisheries, commercial fisheries, and aquaculture).[6]

References

Wikispecies has information related to Greasy grouper.
Wikimedia Commons has media related to Epinephelus tauvina.
  1. ^ a b c d e f g Samoilys, M. (2018). "Epinephelus tauvina". IUCN Red List of Threatened Species. 2018: e.T132758A100559522. doi:10.2305/IUCN.UK.2018-2.RLTS.T132758A100559522.en. Retrieved 19 November 2021.
  2. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2019). "Epinephelus tauvina" in FishBase. December 2019 version.
  3. ^ IT IS Record
  4. ^ Arkive
  5. ^ R. Abu-Hakima Aspects of the reproductive biology of the grouper, Epinephelus tauvina (Forskål), in Kuwaiti waters
  6. ^ "FAO: FIGIS query for Greasy Grouper total production". FAO - Fisheries and Aquaculture Information and Statistics Branch. Retrieved 23 December 2015.

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Greasy grouper: Brief Summary

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The greasy grouper (Epinephelus tauvina), also known as the Arabian grouper or greasy rockcod, is an Indo-Pacific fish species of economic importance belonging to the family Serranidae.

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Description

provided by World Register of Marine Species
Prefers clear water areas on coral reefs; juveniles have been taken from reef flats and in tidepools, adults found in deeper waters. Adults from Oceania almost exclusively feeds on fishes (holocentrids, mullid, and pomacentrid). Often confused with @E. coioides@@ and @E. malabaricus@@.

Reference

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

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