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> Gonorynchiformes (Milkfishes) > Kneriidae (Shellears)
More on author: Pellegrin.

Issue
Originally decribed as a subspecies of P. cameronensis, P. abbreviata is questionably distinct, and more reliable diagnostic characters are needed to verify its status (Ref. 81636).

Environment: milieu / climate zone / kisaran kedalaman / distribution range Ekologi

; air tawar bentopelagis. Tropical

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | peta titik | Introduksi | Faunafri

Africa: Kouilou (Ref. 81636) and Nyanga (Ref. 80297) basins (Republic of Congo), Ogooué (Gabon) (Ref. 81636), and rivers Guoro (Equatorial Guinea) (Ref. 68431) and Mvila (Cameroon) (Ref. 81636) in the Ntem basin. Report from the Lualaba (upper Congo basin) in Democratic Republic of the Congo (Ref. 89136) questionable as species is considered endemic to Lower Guinea (Ref. 81636).

Size / Weight / umur

Kematangan: L_m ? range ? - ? cm
Max length : 7.2 cm SL jantan/; (Ref. 81636)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

Duri punggung (Keseluruhan (total)) : 0; duri punggung lunak (Keseluruhan (total)) : 9 - 11; Duri dubur: 0; Sirip dubur lunak: 8 - 9; vertebrata, bertulang belakang: 37 - 38. Diagnosis: body depth 6.65-7.2 times in SL (Ref. 89136), 11.9-15.5% SL, with greatest depth at or slightly anterior to dorsal fin (Ref. 81636). Head length 4.1-4.8 times in SL (Ref. 89134, 89136), 17.9-22.7% SL (Ref. 81636). Snout length 2.65-3 times in HL (Ref. 89136). Eye dorsolateral (Ref. 81636, 89136), 3.85-4.8 times in HL, 1.4-1.8 times in snout length (Ref. 89134, 89136), 1.1-1.5 times in interorbital distance (Ref. 89136). Interorbital distance wide, 27.8-43.4% HL (Ref. 81636). Dorsal fin origin 1.15-1.2 times further from snout tip than from caudal fin origin; anal fin origin 1.85-2.15 times further from pelvic fin origin than from caudal fin origin (Ref. 89136). Pectoral fin enlarged and paddle-shaped (Ref. 81636), 4.5-5.1 times in SL (Ref. 89134, 89136), 0.9-0.95 times longer than head (Ref. 89136). Pelvic fin 6.2-7 times in SL, 1.35-1.5 times in HL (Ref. 89136). Both pectoral and pelvic fins fan out from body in the horizontal plane formed by the ventral surface (Ref. 81636). Caudal peduncle 1.4-1.7 times longer than deep (Ref. 89134, 89136).
Body shape (shape guide): elongated; Cross section: oval.

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

rujukan utama Upload your references | Acuan | Koordinator | mitra

Poll, M., 1984. Kneriidae. p. 129-133. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3565)

Status IUCN Red List (Ref. 130435: Version 2024-2)

kurang bimbang (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Acuan 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).

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

Parakneria abbreviata (Pellegrin, 1931)