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Rhamphichthys hahni (Meinken, 1937)

Roundnose knifefish
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Rhamphichthys hahni
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Gymnotiformes (Knifefishes) 電鰻目 (Knifefishes) > Rhamphichthyidae (Sand knifefishes) 刀魚科 (Sand knifefishes)
Etymology: Rhamphichthys: Greek, rhamphos = bill, peak + Greek, ichthys = fish (Ref. 45335).

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

; 淡水 底中水層性. 溫帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

South America: Paraná River basin (Ref. 30500). Reported from the Uruguay River (Ref. 79585).
南美洲: Rio Parana 流域，阿根廷。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 26.7 cm TL 雄魚/尚未辨別雌雄; (Ref. 30500)

生物學特性     字彙 (例如 epibenthic)

Reported to reach 70 cm TL (Ref. 81048).

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

南美洲: Rio Parana 流域，阿根廷。

主要參考資料 Upload your references | 參考文獻 | 合作者 : Campos-da-Paz, Ricardo | 合作者

Campos-da-Paz, R. and H.-J. Paepke, 1994. On Sternarchorhamphus hahni, a member of the rhamphichthyid genus Rhamphichthys (Ostariophysi: Gymnotiformes). Ichthyol. Explor. Freshwat. 5(2):155-159. (Ref. 30500)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 23 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

FAO - Publication: search | FishSource |

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Trophic ecology
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參考文獻

工具

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網路資源

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00101 - 0.00685), b=3.05 (2.82 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (17 of 100).