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 / depth range / distribution range
экология
; пресноводный донно-пелагический. Tropical
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 / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 7.2 cm SL самец/пол неопределен; (Ref. 81636)
колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 9 - 11; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 8 - 9; позвонки: 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).
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
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)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
Скачать в формате XML
ресурсы в Интернет
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [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).
