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Teleostei >
Siluriformes (Catfishes) >
Auchenoglanididae (Flatnose catfishes)
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).
Eponymy: Pamela Jeanne Akiri (b: 1944) is an American biologist who moved to Nigeria with her husband and worked at Rivers State University of Science and Technology, Port Harcourt, Nigeria. She collected the catfish holotype. (Ref. 128868), visit book page.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 居於水底的. 熱帶
Africa: Niger Delta and the neighbouring New Calabar River, Bonny River and Imo River in southern Nigeria (Ref. 7324, 50225, 57126, 94168).
非洲: 在奈及利亞南部的顯然是尼日三角州與附近的新 Calabar 與漂亮的河的特有種。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 10.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 50225)
背棘 (總數) : 2; 背的軟條 (總數) : 7; 臀棘: 0; 臀鰭軟條: 10 - 13; 脊椎骨: 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).
Body shape (shape guide): fusiform / normal.
頭部與身體一般扁平的。 (最大的身體高度 19-25% 的 SL) 吻寬的; 上頜骨前的齒碟寬的, 測量 22-27% 的 HL。 鰓蓋薄膜完全地融合了。 腹鰭 i,5; 臀鰭 iii- iv,7-9; 尾鰭 16-18.(參考文獻 50225)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 在奈及利亞南部的顯然是尼日三角州與附近的新 Calabar 與漂亮的河的特有種。
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 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
瀕危 (EN) (B1ab(i,ii,iii)+2ab(i,ii,iii)); Date assessed: 20 August 2019
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00955 (0.00512 - 0.01780), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.4 ±0.5 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |