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Synodontis eupterus Boulenger, 1901

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

> Siluriformes (Catfishes) > Mochokidae (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
More on author: Boulenger.

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

; 新鮮な水 底生の漂泳性; pH range: 6.2 - 7.5; dH range: ? - 15. Tropical; 22°C - 26°C (Ref. 1672); 17°N - 4°N

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

Africa: White Nile (Ref. 3202, 28714), Niger, Volta, Chad, Kwa Ibo (Ref. 57223) and Cross basins (Ref. 52861).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm SL オス/雌雄の選別がない; (Ref. 31256)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 1; 肛門の骨: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; eye large, its diameter 23-34.5% of head length and 48-75% of snout length; post-orbital length at least 60% of snout length; maxillary barbels unbranched, longer than head, without tubercles and bordered by a rather broad basal membrane restricted to their anterior thirds; outer mandibular barbels with simple, thin and rather long ramifications; branches of inner mandibular barbels shorter, subdivided and tuberculate; mandibular teeth slender and moderately long, numbering 39-62 (62 in the holotype); denticulations of pectoral-fin spines weak on outer margin and well developed on inner margin; dorsal-fin spine smooth anteriorly, except for a few apical denticles; humeral process triangular and not keeled ventrally; adipose fin well developed and rather close to rayed dorsal fin; branched dorsal-fin rays as well as dorsal- and pectoral-fin spines prolonged into filaments; spots present on body and fins (Ref. 57223). Coloration: body more or less dark brown. Back, sides, head and fins with few isolated small spots; depending on individuals, spots on fins more or less aligned in series; maxillary barbels (including membranes) black; fin filaments darker than fins themselves (Ref. 57223).

生物学     用語集 (例 epibenthic)

Maximum TL was recorded at 22.2 cm, max. SL at 22.2 cm (Ref. 57223). Occurs over a muddy bottom but may also be found over rocks. Feeds mainly on insect larvae but will also take algae (Ref. 6868). This is also an upside-down species (Ref. 4537). Oviparous (Ref. 205).

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

Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Gosse, J.-P., 1986. Mochokidae. p. 105-152. 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. 3202)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 02 September 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 興味がない; 水族館・水槽: 商業
FAO - Publication: search | FishSource |

より多くの情報

Trophic ecology
食品種目概要について
Diet compositions
Food consumptions
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捕食動物
Ecology
生態学
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
体長組成
Mass conversions
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Abundances
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繁殖
Maturities
Fecundities
Spawnings
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Egg(s)
Egg developments
幼生
幼生の動力
Anatomy
Gill areas

Otoliths
Physiology
Body compositions
Nutrients
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水泳形態
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Visual pigment(s)
魚の音
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Toxicities (LC50s)
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遺伝子の
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インターネットの情報源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: 部類, | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: ゲノム, ヌクレオチド | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | 公共の水族館 | PubMed | Reef Life Survey | Socotra Atlas | 生命の木 | Wikipedia: 行く, 検索する | World Records Freshwater Fishing | Zoobank | 動物に関する記録

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00700 - 0.03427), b=2.88 (2.70 - 3.06), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  2.7   ±0.28 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 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100).