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Siluriformes (Catfishes) >
Cetopsidae (Whale catfishes) > Helogeninae
Etymology: Helogenes: Greek, helo = marsh + Greek, gene, genes = birth, race. (Helo has the "e" short) (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি তলদেশ বিহারী ; pH range: 6.0 - 7.0; dH range: ? - 15. Tropical; 22°C - 26°C (Ref. 2059)
South America: Atlantic drainages of Guyana, Suriname, and French Guiana, upper Río Orinoco and Río Negro systems in Venezuela, and Amazon Basin in Brazil, Peru, and Ecuador.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.9 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 101566)
A typical inhabitant of black or clear waters, usually in forest streams with moderate to swift current flow over firm sand or gravel bottoms (Ref. 7462). Lives hidden under plants, litter or plant debris. Can easily be mistaken as a piece of dead wood when it rests on its side, motionless on the bottom. Often swims on one side in undulating movements (Ref. 35381). Feeds mainly on terrestrial insects, particularly ants (Ref. 7462). Nocturnal (Ref. 6868).
Life cycle and mating behavior
Maturities | প্রজনন | Spawnings | Egg(s) | Fecundities | শুককীট
Vari, R.P. and H. Ortega, 1986. The catfishes of the neotropical Family Helogenidae (Ostariophysi: Siluroidei). Smith. Contrib. Zool. (442):20 p. (Ref. 7462)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
মৎস্য: আকর্ষণবিহীণ
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00202 - 0.01305), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.5 ±0.50 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
