Классификация / Names
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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Hemibryconinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335); palomae: Named for the La Paloma Creek, Rio Roble, La Vieja River basin, Alto Cauca, Colombia, where the type series was collected.
Environment: milieu / climate zone / пределы глубины / distribution range
экология
; пресноводный донно-пелагический; pH range: 7.7 - ?. Tropical; 21°C - 21°C (Ref. 85101)
South America: La Paloma and La Siria Creek, Roble River drainage, Cauca-Magdalena River basin in Colombia.
Size / Вес / Возраст
половая зрелость: Lm ? range ? - ? cm
Max length : 8.9 cm SL самец/пол неопределен; (Ref. 85101)
Краткое описание
определительные ключи | морфология | морфометрия
позвонки: 40 - 41. Distinguished from all other species of Hemibrycon in having a higher number scales on lateral line 44-51 (vs. 34-44, except Hemibrycon colombianus with 45-54 and Hemibrycon cairoense with 43-46). Other characters useful to diagnose this species from its congeners include: 5-9 scales between the lateral line and anal-fin origin (vs. 4-5, except Hemibrycon paez with 6-7, Hemibrycon colombianus with 7-9, Hemibrycon polyodon with 6-7, Hemibrycon orcesi with 4-7, Hemibrycon huambonicus with 8-9 and Hemibrycon coxeyi with 7); 5-6 scales between lateral line and pelvic-fin insertion (vs. more than 6, except Hemibrycon yacopiae with 4-6, Hemibrycon polyodon with 5-6, and Hemibrycon orcesi with 4-6); scales around caudal peduncle 13-14 (vs. 18-20); and a reddish spot present on both the dorsal and ventral margins of the caudal peduncle instead of just on the ventral margin as is the case for all other congeners (Ref. 85101).
Body shape (shape guide): elongated.
Found along shore over sandy substrates in the mainstream of creek. Syntopic with other characid species such as Astyanax fasciatus, Astyanax aurocaudatus, Brycon henni and Bryconamericus caucanus (Ref. 85101).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Román-Valencia, C., C.A. García-Alzate, R.I. Ruiz-C. and D.C. Taphorn, 2010. A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the Roble River, Alto Cauca, Colombia, with a key to species known from the Magdalena-Cauca River Basin. Veteb. Zool. 60(2):99-105. (Ref. 85101)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-1)
Угроза для людей
Harmless
Использование человеком
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Estimates based on models
Phylogenetic diversity index (ссылка
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00443 - 0.02057), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (ссылка
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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