Sternopygus branco

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Sternopygus branco Crampton, Hulen & Albert, 2004

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drawing shows typical species in Sternopygidae.

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Gymnotiformes (Knifefishes) > Sternopygidae (Glass knifefishes)
Etymology: Sternopygus: Greek, sternon = sternon, + Greek, pyge = tail (Ref. 45335);  branco: Specific epithet from the Portuguese word meaning white, referring to the characteristic pale color of freshly netted live specimens; noun in apposition..

Environment: milieu / climate zone / depth range / distribution range экология

; пресноводный донно-пелагический. Tropical

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

South America: Amazon River, Brazil.

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 49.2 cm TL самец/пол неопределен; (Ref. 52797)

Краткое описание морфология | морфометрия

членистые (мягкие) лучи анального плавника: 250 - 340

биология     глоссарий (например epibenthic)

Occurs in the main channels of major rivers or side branches; not known to occur in seasonally inundated floodplain forests or in forest steams of the Amazon's terra firme. In the Tefé region, this species is caught with beach seines and trawl nets at depth up to 10 meters in areas with weak currents, such as in large eddies, sheltered bays or "paranás" (side-branches of the main river channels that wind their way through the whitewater "várzea" floodplain); occurs syntopically with Sternopygus macrurus in whitewater habitats, but never with Sternopygus atrabes. This species does not occur where currents near the substrate exceeded 0.1 m/sec. At daytime it is usually encountered near submerged structures such as fallen trees and driftwood, and at night it moves into shallower water and away from structures. Specimens are collected on both sand and mud bottoms. It does not live in groups as indicated by electrode surveys and its sporadic occurrence in nets. Sexually mature males were never encountered, but gravid females were found along the edge of whitewater floodplain areas and in paraná channels during the rising water months of January and February. Feeds mainly on autochthonous insect larvae which it encounters on the substrate; the presence of small pieces of wood in many of the stomachs indicate that it forages among organic detritus on the river bed rather than within rafts of floating meadows or marginal macrophytes (Ref. 55493).

Life cycle and mating behavior половая зрелость | размножение | нерест | икра | Fecundity | личинки

Основная ссылка Upload your references | ссылки | координатор : Albert, James S. | соавторы

Crampton, W.G.R., K.G. Hulen and J.S. Albert, 2004. Redescription of Sternopygus obtusirostris (Gymnotiformes: Sternopygidae) from the Amazon basin, with description of osteology, ecology and electric organ discharges. Ichthyol. Explor. Freshwat. 15(2):121-134. (Ref. 52797)

Статус Красного Списка МСОП (Ref. 130435)

  Не вызывающий беспокойства (LC) ; Date assessed: 03 December 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless





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ресурсы в Интернет

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.6   ±0.27 se; based on food items.
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (39 of 100).