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Notoglanidium akiri (Risch, 1987)

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Notoglanidium akiri
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Nigeria country information

Common names: Ikorikori
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the holotype of Auchenoglanis akiri: 'Umayara Mba, Etche, Rivers State, Nigeria (5°12'N-7°06'E)' (Ref. 47263). Known from southwestern Nigeria in Niger Delta (Ref. 7324, 31256, 50225, 57126) with the neighbouring New Calabar River (Ref. 31256, 50225, 57126, 94168), and Imo River (Ref. 7324, 31256, 57126, 94168).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ni.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Geerinckx, T., E. Vreven, M. Dierick, L.V. Hoorebeke and D. Adriaens, 2013
National Database:

Common names from other countries

艾氏项鲿, 艾氏副项鲿, Ikorikori, ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Claroteidae (Claroteid catfishes) > Auchenoglanidinae
Etymology: Notoglanidium: Greek, noton = back + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish; diminutive (Ref. 45335);  akiri: Named in honour of P.J. Akiri, collector of the type specimens (Ref. 94168).

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 底生の.   Tropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Africa: Niger Delta and the neighbouring New Calabar River, Bonny River and Imo River in southern Nigeria (Ref. 7324, 50225, 57126, 94168).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 10.7 cm SL オス/雌雄の選別がない; (Ref. 50225)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 2; 背鰭 (合計) : 7; 肛門の骨: 0; 臀鰭: 10 - 13; 脊つい: 36. Diagnosis: Notoglanidium akiri differs from other species in the genus in having: an average interorbital distance, 24.1-32.8% of head length vs. smaller in N. boutchangai, N. depierrei, N. pallidum and N. pembetadi, and larger in N. maculatum and N. thomasi; a large eye diameter, 6.6-10.5% of head length vs. smaller in N. maculatum and N. pallidum; a deep adipose fin, 4.7-7.3% of standard length vs. less deep in other species except N. macrostoma and N. walkeri; an average combined premaxillary tooth plate width, 22.0-26.1% of head length vs. broader in N. boutchangai and N. macrostoma and smaller in allother species except N. depierrei and N. pembetadi; only seven soft branched dorsal-fin rays, vs. more than 8 in N. depierrei, N. maculatum, N. pallidum, N. pembetadi, N. thomasi and N. walkeri; and a high dorsal-fin spine length, 9.8-12.8% of standard length vs. shorter in all other species except N. macrostoma (Ref. 94168).

生物学     用語集 (例 epibenthic)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Geerinckx, T., E. Vreven, M. Dierick, L.V. Hoorebeke and D. Adriaens, 2013. Revision of Notoglanidium and related genera (Siluriformes: Claroteidae) based on morphology and osteology. Zootaxa 3691(1):165-191. (Ref. 94168)

IUCNのレッドリストの状況は (Ref. 130435)

  絶滅危惧 (EN) (B1ab(i,ii,iii)+2ab(i,ii,iii)); Date assessed: 20 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

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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=0.00955 (0.00503 - 0.01813), b=2.98 (2.81 - 3.15), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  3.4   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).