Cameroon country information

Common names: [No common name]
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the holotype of Thrattidion noctivagus: 'Sanaga River at Edea, Cameroon' (Ref. 104594). Only known from Sanaga River (Ref. 188, 28136, 51193, 81631, 104594). Also Ref. 105144.
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: Teugels, G.G., 2007
National Database:

Common names from other countries

Nääpsheeringas, Sanaga dværgsild, 小细鲱, ... more

رده بندی / Names اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Thrattidion: Diminutive of Greek, thratta, -es = a kind of fish (Ref. 45335).
More on author: Roberts.

Environment: milieu / climate zone / depth range / distribution range بوم شناسي

; آب شيرين سطح زی. Tropical; 6°N - 3°N

پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | Point map | معرفي | Faunafri

Africa: Sanaga River in Cameroon (Ref. 188, 3509, 28136, 81631).

Size / Weight / سن

Maturity: L_m ? range ? - ? cm
Max length : 2.1 cm SL جنس نر / بدون خواص جنسي; (Ref. 188)

توصيف مختصر كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري

خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 14 - 16; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 23 - 25; مهره ها: 45 - 47. Diagnosis: Small and slender or moderately deep-bodied fishes, its depth 20-28% of standard length, perhaps not reaching much over 2 cm standard length; belly rounded, pre-pelvic scutes 4-7, with lateral arms, but without keels; pelvic scute with 2 or 3 lateral arms; post-pelvic scutes 3-5, keeled and with arms; posterior supra-maxilla absent; lower gillrakers 10-12; pelvic insertion well before dorsal fin, with 1 unbranched and 6-7 branched finrays; anal fin beginning under dorsal fin base (Ref. 188, 81631, 93833). The presence of scutes distinguishes Thrattidion noctivagus from Congothrissa gossei and the absence of a posterior supra-maxilla distinguishes it from all other West or Central African pellonulines (Ref. 188).

A riverine species, collected only at dusk and dawn in swiftly flowing water of about 1 m just above the hydro-electric dam at Edea, Cameroon (Ref. 188). It feeds on plankton and some terrestrial insects (Ref. 188).

Life cycle and mating behavior Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده | همكاران

Teugels, G.G., 2007. Clupeidae. p. 186-204. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81631)

وضعيت در فهرست قرمز IUCN (Ref. 130435)

کمبود داده (DD) ; Date assessed: 05 March 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر برای انسان ها

Harmless

استفاده انسانی

ماهي گيري – شيلات: از بی علاقه گی

FAO(Publication : search) | FishSource |

اطلاعات بيشتر

Trophic ecology
اقلام غذايي
Diet compositions
Food consumptions
Food rations
شکارچیان

Ecology
بوم شناسي
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversions
Recruitments
Abundances

Life cycle
تولید مثل
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
توزاد ( لارو)
پويايي لاروي

Distribution
كشورها
مناطق سازمان خوار و بار جهاني (FAO)
Ecosystems
ظهور
معرفي
BRUVS - Videos

Anatomy
Gill areas
مغزها
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
صداهاي ماهي ها
Diseases / Parasites
Toxicities (LC50s)

Genetics
ژنتيك
Electrophoreses
Heritabilities

Human related
Aquaculture systems
نمايه هاي آبزي پروري
نژادها
Ciguatera cases
Stamps, coins, misc.

Outreach
همكاران

Taxonomy
اسامي عام
مترادف
ريخت شناسي
ريخت ستجي بوسيله انداره گيري
عکس ها

References
مراجع

ابزارها

گزارش های ويژه

راجع به نگهداری آکواريم ملاحظه کنيد | برگه اطلاعات و مشخصات گونه ها را ملاحظه کنيد | برگه اطلاعات و مشخصات آبزی پروری را ببينيد

بارگيری XML

صفحه خلاصه | Point data | اسامي عام | تصاوير

منابع اينترنتي

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00912 (0.00433 - 0.01920), b=3.04 (2.87 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.42 se; based on food items.

جهندگی (Ref. 120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Thrattidion noctivagus Roberts, 1972