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Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Cetopsorhamdia: Greek, ketos = a marine monster, whale + Brazilian vernacular name, Nhamdia/Jamdia (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный демерсальный; pH range: 7.5 - 7.5. Tropical; 0°S - 4°S, 78°W - 72°W
South America: Napo River basin, Ecuador.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm SL самец/пол неопределен; (Ref. 36171)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 11; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 9 - 11; позвонки: 37. Flexible, unbranched first ray and ten branched rays on its dorsal fin; dorsal fin situated relatively far posteriorly; pterygiophore of anterior dorsal fin ray articulating with neural spine of tenth vertebra; blade like neural spines of vertebrae five through nine extend dorsally, diverging at their dorsal ends to form a double row of ossifications just ventral to skin between supraoccipital and dorsal fin origin; a slender supraneural at posterior end of this v-shaped predorsal trough has attached muscles extending anteriorly between bifid neural spines to supraoccipital; maxillary barbel very long , reaching posteriorly beyond anal fin base. Distal portions of dorsal, adipose and anal fins, and most part of caudal fin almost unpigmented.
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36914)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00362 - 0.01664), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
