Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный донно-пелагический. Tropical
Africa: Ntem basin (Ref. 81636) and Dja River (middle Congo River basin) (Ref. 89136) in Cameroon, Mbini River in Equatorial Guinea (Ref. 42020), and Louetsi (=Ngounié, Ogooué tributary), Nyanga and Mouvanga Creek in Gabon (Ref. 81636). Also reported from the Itimbiri and Aruwimi (middle Congo River basin)(Ref. 106290) and the Lualaba (upper Congo River basin)(Ref. 41590) in Democratic Republic of the Congo, but these are considered questionable in Ref. 81636.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 9.2 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 - 10; позвонки: 39. Diagnosis: body a little depressed in front (Ref. 1878), elongate, fusiform (Ref. 81636), its depth 5.66 (Ref. 41590) - 9.1 (Ref. 1878) times in TL, 8.5-9.1 times in SL (Ref. 89112, 89136), 10.8-14.5% SL, with greatest depth at or slightly anterior to dorsal fin origin (Ref. 81636). Head broader than deep, about 1.5 times as long as broad, its length 4.5-5 times in TL (Ref. 1878), 17.2-21.7% SL (Ref. 81636). Snout rounded, about as long as postorbital part of head (Ref. 1878, 89136), 2.35-2.8 times in HL (Ref. 89136). Eye superolateral, 3.75 (Ref. 41590) - 5.75 (Ref. 89136) times in HL, 1.3-1.75 times in interorbital distance, 1.65-2.45 times in snout length (Ref. 89136). Interorbital width 28.6-45.1% HL (Ref. 81636), 3.2-3.55 times in HL (Ref. 89136). Dorsal fin 1.2-1.3 times further from snout tip than from caudal fin origin (Ref. 89136), at equal distance from eye and root of caudal (Ref. 1878). Anal fin origin 2 (Ref. 1878) - 2.4 (Ref. 89136) times as distant from root of pelvics as from root of caudal. Pectoral fin paddle shaped (Ref. 81636), very large, 4-4.75 times in SL, 0.95- 1.2 times in HL (Ref. 89136). Pelvic fin 4.85-6.25 times in SL, 1-1.35 times in HL (Ref. 89136). Caudal peduncle about 1.45 (Ref. 89136) - 1.66 (Ref. 1878) times as long as deep.
Microphagous feeder (Ref. 51193).
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).
