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Silurus lithophilus (Tomoda, 1961)

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drawing shows typical species in Siluridae.


Japan country information

Common names: Iwatoko-namazu, イワトコナマズ
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Lake Biwa and Lake Yogo (Ref. 559). Status of threat in the 2005 Red Data Book of Shiga Prefecture : danger increasing (Ref. 79825). Status of threat: Near threatened (Ref. 94887).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Siluridae (Sheatfishes)
Etymology: Silurus: Greek, silouros = a cat fish + Greek, odous = teeth (Ref. 45335).

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

; Água doce demersal.   Temperate

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Asia: endemic to Lake Biwa basin, Japan.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 58.0 cm TL macho/indeterminado; (Ref. 40637); common length : 21.2 cm SL macho/indeterminado; (Ref. 9417); peso máx. Publicado: 1.5 kg (Ref. 40637)

Biologia     Glossário (ex. epibenthic)

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Vulnerável, ver o Livro Vermelho da IUCN (VU) (B1ab(iii,v)); Date assessed: 08 December 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless




Utilização humana

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00278 - 0.01137), b=3.00 (2.83 - 3.17), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  4.0   ±0.7 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (43 of 100).