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Galeoides decadactylus (Bloch, 1795)

Lesser African threadfin
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Galeoides decadactylus   AquaMaps   Data sources: GBIF OBIS
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Image of Galeoides decadactylus (Lesser African threadfin)
Galeoides decadactylus
Picture by Wirtz, P.

Common names from other countries

Petit capitaine, Barbudo enano africano, Shinenose, ... more

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Carangaria/misc (Various families in series Carangaria) 鱸形目 (Various families in series Carangaria) > Polynemidae (Threadfins) 馬鮁科 (Threadfins)
Etymology: Galeoides: Greek, galeos = a shark + suffix oides = similar to (Ref. 45335).
  More on author: Bloch.

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

海洋; 半鹹淡水 居於水底的; 深度上下限 10 - 70 m (Ref. 10799).   亞熱帶的; 37°N - 27°S, 19°W - 16°E (Ref. 57343)

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Eastern Atlantic: West African coasts, from Canary Islands and Morocco to Angola (Ref. 57402). Sporadically known from Algeria and Namibia (Ref. 57343). Record from Mauritius is likely to be erroneous.
東大西洋: 摩洛哥到安哥拉, 包括加納利群島.(參考文獻 7386) 偶而已知來自非洲北方部 (阿爾及利亞)了。 來自模里西斯的記錄可能是錯誤的。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 11.6  range ? - ? cm
Max length : 50.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5377); common length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 3659)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 9; 背的軟條 (總數) : 13 - 14. Diagnosis: 9-10 short detached pectoral filaments, not exceeding length of upper pectoral fin; body moderately elongate and compressed, its height comprised 2.9-3.4 times in standard length; snout very short, blunt and prominent; mouth inferior; posterior edge of maxillary only slightly expanded, barely reaching past eye; 2 widely separated dorsal fins, 1st with 8 spines, 2nd with 1 flexible spine and 13-14 soft rays; 2nd dorsal fin and anal fin bases barely equal; pectoral fin inserted low on body; scales ctenoid; head and unpaired fins partly covered with small scales (Ref. 57402). Coloration: body uniformly silvery, upper part greyish and belly white; a large rounded black spot, about equal to eye diameter, generally visible under lateral line, behind opercle (Ref. 57402).

生物學特性     字彙 (例如 epibenthic)

Occurs over sandy (Ref. 2683) and muddy bottoms in shallow waters (Ref. 4340), frequently in brackish habitats (Ref. 4340, 57402) and estuaries, but not in freshwaters (Ref. 57402). Feeds on benthic invertebrates (Ref. 5377). Sold fresh, dried salted or smoked (Ref. 36127).

生活在沙的 (參考文獻 2683)之上與泥底部在淺水區中, 時常在半鹹淡的棲息地.(參考文獻 4340) 吃底棲的無脊椎動物。 (參考文獻 5377) 生鮮販賣了, 乾燥鹽醃或者煙燻.(參考文獻 36127)

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

Also Ref. 32209.東大西洋: 摩洛哥到安哥拉, 包括加納利群島.(參考文獻 7386) 偶而已知來自非洲北方部 (阿爾及利亞)了。 來自模里西斯的記錄可能是錯誤的。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Daget, J. and J.C. Njock, 1986. Polynemidae. p. 352-354. 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. (Ref. 4340)

IUCN 瀕危狀態 (Ref. 130435)

  近危 (NT) ; Date assessed: 15 July 2014

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




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FAO(漁業: 產生, 魚種描繪; publication : search) | FIRMS (Stock assessments) | FishSource | 周邊海洋

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Estimates based on models

Preferred temperature (Ref. 115969): 20.1 - 27.9, mean 25.9 (based on 66 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00481 - 0.01311), b=3.10 (2.96 - 3.24), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  3.6   ±0.67 se; based on food items.
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.14-0.4).
Prior r = 0.49, 95% CL = 0.32 - 0.73, Based on 2 data-limited stock assessments.
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (30 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (77 of 100).
價格種類 (Ref. 80766):   High.