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Marcusenius pongolensis (Fowler, 1934)

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Marcusenius pongolensis
Picture by Palmer, R.

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

> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist.
More on author: Fowler.

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

; آب شيرين نزديك كف زي. Tropical

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

Africa: coastal rivers draining into the Indian Ocean, ranging between tropical sections of the Limpopo River in the north and the Kosi River system in the south, including the Pongolo River which is the type river (Ref. 75962, 95448).

Size / Weight / سن

Maturity: Lm ?  range ? - ? cm

توصيف مختصر ريخت شناسي | ريخت ستجي بوسيله انداره گيري

خارهاي باله پشتي (کل): 0; شعاع نرم باله پشتي (کل): 20-23; خارهاي باله مخرجي 0; شعاع نرم باله مخرجي: 26 - 28; مهره ها: 42 - 43. Diagnosis: Marcusenius pongolensis can be distinguished from its congeners by the following characters: a more slender body, elongated, smaller body depth, 19.1-26.0% of standard length; distance from dorsal fin origin to end of caudal peduncle 37.1-39.8% of standard length; distance from anal fin origin to end of caudal peduncle 40.8-42.2% of standard length; and length of anal fin 19.5-21.9% of standard length; all shorter and non-overlapping with Marcusenius krameri, M. caudisquamatus and M. lucombesi (Ref. 95448). Total vertebrae ranges between 42-43 vs. 44 in other species; posterior total gill rakers 13-14 vs. 15 and 17 in M. caudisquamatus and M. krameri, respectively; lateral line scales 70-73; scales around caudal peduncle 16-17; dorsal fin rays 20-23; anal fin rays 26-28 (Ref. 95448). Electric organ discharge (EOD) lacking a weak head-negative pre-potential, in females and juveniles Ndur of short duration, no striking sexual dimorphism in EOD waveform present, but longer EOD duration and statistically significant increase with standard length in males (Ref. 75962).

زيست شناسي     واژه نامه (بعنوان مثال epibenthic)

During the day Marcusenius pongolensis is often encountered below undercut river banks, especially in dense network of tree roots; places where there is a countercurrent seem to be especially attractive; in Swaziland it has been observed high up in river systems with rapid water flow and rocky substrate in Swaziland (Ref. 75962).

Life cycle and mating behavior بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)

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

Kramer, B., P. Skelton, H. van der Bank and M. Wink, 2007. Allopatric differentiation in the Marcusenius macrolepidotus species complex in southern and eastern Africa: the resurrection of M. pongolensis and M. angolensis, and the description of two new species (Mormyridae, Teleostei). J. Nat. Hist. 41(9-12):647-708. (Ref. 75962)

وضعيت در فهرست قرمز IUCN (Ref. 125652)

  حداقل نگرانی (LC) ; Date assessed: 30 November 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر برای انسان ها

  Harmless





استفاده انسانی

ماهي گيري – شيلات:
FAO - Publication: search | FishSource |

اطلاعات بيشتر

كشورها
مناطق سازمان خوار و بار جهاني (FAO)
Ecosystems
ظهور
معرفي
Stocks
بوم شناسي
عادت غذايي
اقلام غذايي
مصرف غذايي
سهمیه
اسامي عام
مترادف
سوخت و ساز
شکارچیان
سم شناسي بوم زيستي
تولید مثل
بلوغ
تخم ریزی
Spawning aggregation
Fecundity
تخم ها
نمو تخم
Age/Size
رشد
طول - وزن
طول - طول
نوسانات طولی
ريخت ستجي بوسيله انداره گيري
ريخت شناسي
توزاد ( لارو)
پويايي لاروي
بازسازی
فراواني
BRUVS
مراجع
آبزي پروري
نمايه آبزي پروري
نژادها
ژنتيك
تواتر آلل ها
وارث
بيماري ها
فرآوری
Nutrients
Mass conversion
همكاران
عکس ها
Stamps, Coins Misc.
صداها
سيگواترا
سرعت
نوع شناگری
منطقه آبششي
Otoliths
مغزها
بینایی

ابزارها

گزارش های ويژه

بارگيری XML

منابع اينترنتي

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | فيش واچر را ببينيد | CISTI | Catalog of Fishes: جنس, گونه ها | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: ژنوم, نوکلئوتيد | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: برو, جستجو | World Records Freshwater Fishing | Zoological Record

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=0.00562 (0.00246 - 0.01284), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
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 (19 of 100).