Классификация / Names
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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Hemibagrus: Greek, hemi = the half + Mozarabic, bagre, Greek, pagros = a fish, Dentex sp. (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный демерсальный. Tropical
Asia: known only from the lower Mekong drainage in Cambodia.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 30.9 cm SL самец/пол неопределен; (Ref. 38441)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 1; членистые (мягкие) лучи спинного плавника (общее число) : 7; членистые (мягкие) лучи анального плавника: 12 - 14; позвонки: 43 - 44. Can be differentiated from its congeners by a unique combination of the following characters: adipose fin short (length of adipose-fin base 11.3-12.7% SL; 1.72-2.20 times maximum adipose height) with a steep anterior margin (length of adipose-fin base and a distinct black spot on the posterior half); head width 20.6-23.4% SL; dorsal to adipose distance 12.7-16.2% SL; and absence of filamentous extensions on the first three dorsal-fin rays in adults.
Feeds on exogenous insects, aquatic insect larvae, shrimps and other crustaceans, as well as fishes. In Cambodian Mekong, it moves into flooded forest to spawn and the young are first observed in August, with the adults returning to rivers in November and December.
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
Ng, H.H. and W.J. Rainboth, 1999. The bagrid catfish genus Hemibagrus (Teleostei: Siluriformes) in central Indochina with a new species from the Mekong River. Raffles Bull. Zool. 47(2):555-576. (Ref. 38441)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
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Специальные отчеты
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (28 of 100).
