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> Siluriformes (Catfishes) > Akysidae (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); fontaneus: The specific epithet comes from the Latin adjective fontaneus, meaning of or from a spring, in reference to the nature of a type locality (a spring-fed stream).

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

; air tawar bentopelagis; pH range: 6.8 - ?; kisaran kedalaman 0 - 2 m (Ref. 80541). Tropical; 2°S - 3°S, 102°E - 103°E

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

Asia: Indonesia. Presently known only from the type locality in the Batang Hari drainage in central Sumatra (Ref. 80541).

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 2.4 cm SL jantan/; (Ref. 80541)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

Duri punggung (Keseluruhan (total)) : 1; duri punggung lunak (Keseluruhan (total)) : 5; Duri dubur: 3; Sirip dubur lunak: 7; vertebrata, bertulang belakang: 33. Akysis fontaneus is distinguished from congeners by a combination of the following characters: weakly emarginate caudal fin, convex dorsal surface of neurocranium making predorsal profile appear steeply sloping, presence of 4 large serrations on posterior edge of pectoral spine that are more than half width of spine, predorsal length 34.5% SL, pectoral-fin length 21.7% SL (not reaching pelvic-fin origin), length of adipose-fin base 18.7% SL and interorbital distance 42.3% HL (Ref. 80541).

Life cycle and mating behavior Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva

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Ng, H.H., 2009. Akysis fontaneus, a new species of catfish (Siluriformes: Akysidae) from Sumatra. Zootaxa 1973:41-50. (Ref. 80541)

Status IUCN Red List (Ref. 130435: Version 2024-1)

kekurangan data (DD) ; Date assessed: 22 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Akysis fontaneus Ng, 2009