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Sargocentron diadema (Lacepède, 1802)

Crown squirrelfish
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Native range | All suitable habitat | Point map | Year 2050
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Sargocentron diadema   AquaMaps   Data sources: GBIF OBIS
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Image of Sargocentron diadema (Crown squirrelfish)
Sargocentron diadema
Picture by Randall, J.E.

Madagascar country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Museum: NMW 42039; ZMH 13343. Nosy Bé, FMNH 86802. Tuléar, MNHN 1963-155 (Ref. 27370). Also Ref. 33390.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ma.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Randall, J.E., 1998
National Database:

Common names from other countries

Écureuil diadème, Red squirrelfish, Barred squirrel, ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

> Holocentriformes (Squirrelfishes, soldierfishes) > Holocentridae (Squirrelfishes, soldierfishes) > Holocentrinae
Etymology: Sargocentron: Greek, sargos = sargus + Greek, kentron = sting (Ref. 45335).
  More on author: Lacepède.

Environment: milieu / climate zone / depth range / distribution range 生態学

海 関連する礁; 深さの範囲 1 - 60 m (Ref. 27370), usually 2 - 30 m (Ref. 30573).   Tropical; 30°N - 33°S, 27°E - 128°W

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Indo-Pacific: Red Sea and East Africa to the Hawaiian and Pitcairn islands, north to the Ryukyu and Ogasawara islands, south to northern Australia and Lord Howe Island. Throughout Micronesia (Ref. 1602).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL オス/雌雄の選別がない; (Ref. 30874)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 11; 背鰭 (合計) : 12 - 14; 肛門の骨: 4; 臀鰭: 8 - 9. Body with alternating broad red and narrower silvery white stripes (Ref. 4201); red head with 2 vertical white streaks on the opercle, one on its edge and an oblique one below the eye; distinctive reddish-black to black dorsal fin with two white streaks. Five or 6 oblique rows of scales on cheek. Maxilla nearly reaching or extending slightly beyond a vertical at anterior edge of the pupil; upper jaw length 2.75-2.95 in head length. Body depth 2.75-3.25 in SL; head length 2.7-3.15 in SL; snout length 4.0-4.4 in head length; interorbital width 4.4-4.9 in head length; premaxillary groove extending slightly posterior to a vertical at anterior edge of orbit; anterior end of nasal bone rounded; medial margin of nasal bone without spinule; nasal fossa without spinules on its edge; upper edge of suborbital bones below anterior half of eye spineless; small preopercular spine, its length 2-3 times in orbit diameter, 2.85-3.5 in head length; longest 4th dorsal spines, 1.7-2.25 in head length; third anal spine 1.2-1.35 in head length (Ref. 27370).

生物学     用語集 (例 epibenthic)

A common species that inhabits shallow coral reefs (Ref. 58534) and lagoon and seaward reefs to depths of 30 m or more. Benthopelagic (Ref. 58302). Occurs under ledges or in crevices during the day and feeds on isopods; at night it roams over open sand and low-profile reef areas to feed on polychaetes and small crabs. Stomach contents listed gastropods (e.g. Atys sp.), polychaetes, small clams, solenogastrid, isopods, brachyuran crabs, and other crustaceans (Ref. 27370). Tends to occur in aggregations (Ref. 30573). Venomous spine on its preopercle. Size rarely exceeds 13 cm. Minimum depth reported taken from Ref. 30874.

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター : Randall, John E. | 協力者

Randall, J.E., 1998. Revision of the Indo-Pacific squirrelfishes (Beryciformes: Holocentridae: Holocentrinae) of the genus Sargocentron, with descriptions of four new species. Indo-Pac. Fish. (27):105 p. (Ref. 27370)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 04 March 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Venomous (Ref. 2334)




Human uses

水産業: 少数商業の; 水族館・水槽: 商業
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Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 29, mean 27.7 (based on 1144 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.01069 - 0.02461), b=2.98 (2.86 - 3.10), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.4   ±0.2 se; based on diet studies.
回復力 (Ref. 120179):  高い, １５か月以下の倍増期間の最小個体群 (K=1.13).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
価格帯 (Ref. 80766):   Medium.