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

> Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); mamiraua: Named for the Mamirauá lake system and the Mamirauá Sustainable Development Reserve (formerly the Estaçao Ecológica Mamirauá). Noun in apposition..

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

; آب شيرين نزديك كف زي; pH range: 6.9 - 7.3. Subtropical

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

South America: two whitewater lake systems on the Rio Solimões floodplain of central Amazonia (the Mamirauá lake system near Tefé, and Lago Janauacá near Manaus), Amazonas State, Brazil (Ref. 41292).

Size / Weight / سن

Maturity: L_m ? range ? - ? cm
Max length : 24.3 cm TL جنس نر / بدون خواص جنسي; (Ref. 41292); بيشينه وزن گزارش شده: 40.00 g (Ref. 41292)

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

Deep body (body depth 11-13% TL versus 6-10) possessing very thin pale bands (less than 1/5 the width of the dark bands) with sharp (high contrast) margins. Bands are sinuous on the anterior half of the body, and extend clearly to the dorsal midline (Ref. 41292).

Facultative air-breathing in the genus (Ref. 126274); Oviparous (Ref. 205). Males provide parental care in nests excavated for larvae (Ref. 55570).

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

Parental care is provided by the male. Nests consisted of a group of small juveniles under a dense roots of floating macrophytes which are attended by a single male adult (Ref. 55570).

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده : Campos-da-Paz, Ricardo | همكاران

Albert, J.S. and W.G.R. Crampton, 2001. Five new species of Gymnotus (Teleostei: Gymnotiformes) from an upper Amazon floodplain, with descriptions of electric organ discharges and ecology. Ichthyol. Explor. Freshwat. 12(3):241-266. (Ref. 41292)

وضعيت در فهرست قرمز IUCN (Ref. 130435)

حداقل نگرانی (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر برای انسان ها

Harmless

استفاده انسانی

FAO - Publication: search | FishSource |

اطلاعات بيشتر

Trophic ecology
اقلام غذايي
Diet compositions
Food consumptions
Food rations
شکارچیان

Ecology
بوم شناسي

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

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بارگيری XML

صفحه خلاصه | Point data | اسامي عام | تصاوير

منابع اينترنتي

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=0.00437 (0.00209 - 0.00911), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.47 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 (14 of 100).

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Gymnotus mamiraua Albert & Crampton, 2001