Classification / Names
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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
; स्वच्छ जल, अलवण जल बेनथोपिलाजिक. Tropical
South America: Rio Jequitinhonha basin in Brazil.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.4 cm SL पुल्लिंग / अलिंग; (Ref. 52473)
Short description
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय रीढ़ (सम्पूर्ण) : 0; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 8 - 10; गुदा कांटा: 0; ऐनल सौफट रेज़: 5 - 8. A series of large gray and nearly circular large spots latero-dorsally on body, some of which may be nearly fused to form long marks; a series of nearly circular large spots laterally on flank, some may be fused to form long marks, slightly smaller than the latero-dorsal circular large spots; these two series of large spots may be aligned one under the other or alternate one another; scattered, irregularly shaped and slightly smaller spots ventro-laterally on body; a series of mid-dorsal large spots on body, absent in large specimens; pelvic fin origin equidistant from base of middle caudal fin rays and a vertical between posterior margin of opercle (in juveniles, about 2.4 cm TL) and the posterior margin of pectoral fin or even slightly backward (in specimens about 8.3 cm TL); distance from dorsal fin origin to base of middle caudal fin rays 1.7-1.9 in predorsal distance and absence of spots on opercular region in intermediate and large size specimens; anus under anterior part of dorsal fin base (Ref. 52473).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
Triques, M.L. and V. Vono, 2004. Three new species of Trichomycterus (Teleostei: Siluriformes: Trichomycteridae) from the Rio Jequitinhonha basin, Minas Gerais, Brazil. Ichthyol. Explor. Freshwat. 15(2):161-172. (Ref. 52473)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
साधन
Special reports
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इंटरनेट स्रोत
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=0.00851 (0.00358 - 0.02025), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
लौटाव (Ref.
120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Assuming Fec < 100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
