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Pseudotolithus elongatus (Bowdich, 1825)

Bobo croaker
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Native range | All suitable habitat | Point map | Year 2050
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Pseudotolithus elongatus   AquaMaps   Data sources: GBIF OBIS
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Pseudotolithus elongatus
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Cameroon country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: minor commercial | Ref: FAO, 1994
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in Sanaga and coastal rivers of west and south Cameroon (Ref. 51193).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cm.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Chao, L.N. and E. Trewavas, 1990
National Database:

Common names from other countries

Otolithe bobo, Corvina bobo, Giant captainfish, ... more

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

> Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: Pseudotolithus: Greek, pseudes = false + greek, otos = ear + Greek, lithos = stone (Ref. 45335).

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

海; 新鮮な水; 汽水性の 底生の; 深さの範囲 0 - 100 m (Ref. 3593), usually 50 - 100 m (Ref. 26999).   Tropical; 17°N - 6°S, 17°W - 14°E (Ref. 54743)

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Eastern Atlantic: west coast of Africa, from Senegal to at least southern Angola (Ref. 3593, 57396, 81656).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 19.1  range ? - ? cm
Max length : 62.5 cm TL オス/雌雄の選別がない; (Ref. 52841); common length : 30.0 cm TL オス/雌雄の選別がない; (Ref. 3593)

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) : 29 - 35; 肛門の骨: 2; 臀鰭: 6 - 7. Diagnosis: medium-sized fish, fusiform/elongate and laterally compressed (Ref. 57396, 81656). Head and snout short (Ref. 57396). Eyes rather large (Ref. 57396, 81656), 3.6-4.6 times in HL, but this character is difficult to use for identification because of allometry (Ref. 81656). Mouth large and oblique (Ref. 57396, 81656), subterminal (Ref. 57396). Maxilla extending beyond posterior eye border (Ref. 81656). Teeth villiform, set in narrow bands in both jaws; 5 marginal pores on snout and 6 mental pores (Ref. 57396). Gill rakers long (Ref. 57396, 81656) and slender (Ref. 57396), longer than gill filaments at angle of first gill arch (Ref. 57396, 81656), 11-16/1/5-8 (total 19-25) on 1st gill arch (Ref. 81656). Lower part of 1st gill arch with 0-5 reduced additional gill rakers, upper part with 0-3 reduced additional ones; preopercular edge denticulate, with a few strong spines in the corner (Ref. 81656). Dorsal fin long, deeply notched (Ref. 57396), with 10 spines in 1st part and 1 spine and 29-35 soft rays in 2nd part (Ref. 81656). 2nd anal fin spine very strong, about as long as 1st soft ray (Ref. 57396, 81656) and comprised less than twice in head length (Ref. 57396). Pectoral fins long, 23.6-29.6% SL (Ref. 81656). Caudal fin more or less pointed (Ref. 57396, 81656) or rhomboidal (Ref. 81656). Scales ctenoid on body, cycloid on breast and head; lateral line extending to hind margin of caudal fin; swim bladder carrot-shaped, its front end with a pair of appendages subdividing into a group of short anterior branches and a bundle of 5-6 slender tubes extending backwards over half the length of swim bladder (Ref. 57396). Coloration: general colour silver-grey with a reddish sheen (Ref. 81656), back olivaceous brown (Ref. 57396) with series of dark dots, belly light, yellowish during reproduction period (Ref. 57396, 81656). Dorsal and caudal fins greyish (Ref. 81656). Spinous part of dorsal fin dark, soft part lighter, with 2-3 longitudinal series of dark dots; pelvics and anal fin yellowish (Ref. 57396, 81656).

生物学     用語集 (例 epibenthic)

Found in coastal waters over mud bottom (Ref. 3593, 57396, 81656), very close to the shore (Ref. 57396). Also enters estuaries and coastal lagoons (Ref. 3593, 81656), where reproduction takes place (Ref. 57396). Moves farther offshore to about 100 m for spawning during rainy season from December to February; feeds on (juvenile) fish, shrimps (Ref. 28587, 81656) and other crustaceans (Ref. 81656).

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 | 協力者

Chao, L.N. and E. Trewavas, 1990. Sciaenidae. p. 813-826. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 3593)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 10 March 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 商業; ゲームフィッシュ: はい
FAO(水産業: 代謝, 種の外形; publication : search) | FishSource | 私達の周りの海

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Estimates based on models

Preferred temperature (Ref. 115969): 16.3 - 20.9, mean 19.2 (based on 24 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00379 - 0.01100), b=3.08 (2.94 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  4.1   ±0.70 se; based on food items.
回復力 (Ref. 120179):  手段, １．４年～４．４年の倍増期間の最小個体群 (K=0.27-0.4;).
Prior r = 0.52, 95% CL = 0.34 - 0.78, Based on 3 data-limited stock assessments.
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (32 of 100).
Climate Vulnerability (Ref. 125649):  High to very high vulnerability (74 of 100).
価格帯 (Ref. 80766):   High.