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Enneacampus ansorgii (Boulenger, 1910)

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Enneacampus ansorgii
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Gambia country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Occurs in the Gambia River (Ref. 4127, 28587, 81680). Also Ref. 57226.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ga.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Lévêque, C and D. Paugy, 2003
National Database:

Common names from other countries

Kleine Süßwassernadel, Musongo, Punavatsaneula, ... more

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

> Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: Enneacampus: Greek, ennea = nine times + Greek, kampe = curvature (Ref. 45335).
  More on author: Boulenger.

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

; 新鮮な水; 汽水性の 底生の; pH range: 7.0 - 7.5; dH range: 10 - 18.   Tropical; 24°C - 28°C (Ref. 1672)

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: western coast of Africa from the Gambia river drainage (Gambia) to the Cuanza river (Angola) (Ref. 4127, 81680).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 13.6 cm SL オス/雌雄の選別がない; (Ref. 81680)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 0; 背鰭 (合計) : 22 - 29; 肛門の骨: 0; 臀鰭: 2 - 3. Diagnosis: 11-15 (median 13) pectoral fin rays; head length 8.4-10.8 (mean 9.4) times in SL (Ref. 57226, 81680). Snout tubular, relatively short (Ref. 57226), ratio head length/snouth length 2.0-2.8 (mean 2.5)(Ref. 57226, 81680).

生物学     用語集 (例 epibenthic)

Adults occur in coastal rivers and streams (Ref. 4127, 81680), and swamps (Ref. 57226, 81680). Seems confined to fresh water habitats and breeds in fresh water (Ref. 81680). Ovoviviparous (Ref. 205). Feeds (mainly) on copepods (Ref. 81680). Male carries the eggs in a brood pouch which is found under the tail (Ref. 205). Dawson (1981) reported 17-36 postlarvae in the brood pouch of males of 75.5-82.5 mm SL; a larger male (MRAC 143259: 136.4 mm SL) caught in December 1964, in a swampy area about 200 m from the coast of Bioko Island (formerly Fernando Poo), has its brood pouch filled with several hundred postlarvae (Ref. 81680).

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

Male carries the eggs in a brood pouch (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

Dawson, C.E., 1986. Syngnathidae. p. 281-287. 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. 4127)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 06 June 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00037 (0.00016 - 0.00085), b=3.18 (2.99 - 3.37), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).