Gymnotus capanema

Gymnotus capanema Milhomem, Crampton, Pierczeka, Shetka, Silva & Nagamachi, 2012

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Image of Gymnotus capanema
No image available for this species;
drawing shows typical species in Gymnotidae.

klasifikasi / Nama Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | ITIS | CoL | WoRMS | Cloffa

> Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); capanema: Named for its type locality, the municipality of Capanema, Pará, Brazil; noun in apposition (Ref. 89487).

Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi Ekologi

; air tawar bentopelagis. Tropical

Penyebaran Wilayah | Daerah-daerah FAO | Ekosistem | Kemunculan | peta titik | Introduksi | Faunafri

South America: Brazil.

Ukuran / Berat / umur

Kematangan: Lm ?  range ? - ? cm
Max length : 17.9 cm TL jantan/; (Ref. 89487)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

This species is distinguished from its congeners, except for G. pantanal, in possessing the following characteristics: a unique pigmentation pattern comprising a uniform dark brown background with prominent broad whitish or yellowish posteriorly inflected bands with dark margins, which narrow dorsally in the anterior portion of the body until they completely fade at around the position of the lateral line, never reaching or traversing the dorsal surface of the body; differs from G. pantanal in possessing 2 (vs. 1) adjacent, posteriorly facing, preopercular-mandibular sensory canal pores in the dorsoposterior portion of the preopercle. This species belongs in the G. carapo species group while G. pantanal belongs to the G. pantherinus species group. Gymnotus capanema is further distinguished from G. pantanal in possessing fewer anal-fin rays (180-205 vs. 235-280), has a deeper body (9.6-10.1% LTvs. 8.0-9.5% TL), and fewer pectoral-fin rays (11-15 vs. 16-18). Gymnotus capanema also differs unambiguously from all other species of the G. carapo species group from the Amazon Basin and north-east Brazil, except G. curupira, G. chaviro and G. varzea, in possessing a short head (8.5-9.3% TL vs. 9.7-14.2% TL); differs from G. curupira in possessing a deeper body (9.6-10.0% TL vs. 7.4-8.6% TL), larger preorbital distance (36.4-49.7% HL vs. 34.3-36.0 HL), fewer pectoral-fin rays (11-15 vs. 16-17), fewer pored lateral-line scales to the first ventral ramus (47-56 vs. 59-62) and the distinct pigmentation reported here; from G. chaviro in possessing fewer pectoral-fin rays (12-15 vs. 18-19) and fewer anal-fin pterygiophore scale rows (5-8 vs. 12-13); from G. varzea in possessing a larger preorbital distance (36.4-49.7% HL vs. 29.7-35.8% HL), fewer anal-fin rays (180-205 vs. 230-310), fewer pectoral-fin rays (11-15 vs. 16-19) and the distinct pigmentation reported in the species description (Ref. 89487).

Biologi     Daftar kata (contoh epibenthic)

Facultative air-breathing in the genus (Ref. 126274)

Siklus hidup dan perilaku kawin Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva

rujukan utama Unggah referensi Anda | Acuan | Koordinator : Campos-da-Paz, Ricardo | mitra

Milhomem, S.S.R., W.G.R. Crampton, J.C. Pieczarka, G.H. Shetka, D.S. Silva and C.Y. Nagamachi, 2012. Gymnotus capanema, a new species of electric knife fish (Gymnotiformes, Gymnotidae) from eastern Amazonia, with comments on an unusual karyotype. J. Fish Biol. 80(4):802-815. (Ref. 89487)

Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))

  kekurangan data (DD) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

  Harmless





penggunaan manusia

FAO - Publication: search | FishSource |

informasi lanjut

Ekologi trofik
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Sumber internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | semak peneliti ikan | CISTI | Catalog of Fishes: Marga, Jenis | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: pergi, Cari | World Records Freshwater Fishing | Zoobank | Catatan Zoologi

Estimasi berdasarkan model

Indeks keanekaragaman filogenetik
(Acuan 82804) 		PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00427 (0.00202 - 0.00902), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Tingkat Trofik
(Acuan 69278) 		3.3   ±0.4 se; based on size and trophs of closest relatives
Daya lenting
(Acuan 120179) 		Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Kerentanan Penangkapan Ikan
(Ref. 59153) 		Low vulnerability (17 of 100). 🛈