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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); igobi: The specific name is based on a mythological character of the Tupi-Guarani Indian legend about the origin of the Iguaçu waterfalls..
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
; آب شيرين نزديك كف زي. Tropical
South America: Lower rio Jordão of the rio Iguaçu, rio Paraná drainage in Brazil.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 9.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 75005)
توصيف مختصر
ريخت شناسي | ريخت ستجي بوسيله انداره گيري
شعاع نرم باله پشتي (کل): 7-8; شعاع نرم باله مخرجي: 6 - 7; مهره ها: 37. Differs from its congeners by having large head 23.8-26.8% SL, which is proportionally the largest head in any Trichomycteridae. Additional diagnostic characters that distinguished this species from most or all of its congeners are the following: almost entirely cartilaginous second hypobranchial (with only vestigial ossification; mesially expanded palatine ossification; narrow and falciform cleithrum; absence of a proximal posterior concavity on the third ceratobranchial. Can be further distinguished from all congeners, except Trichomycterus stawiarski and T. sp. C, by having rigid spine-like morphology of individual procurrent rays of the caudal fin, extension of the dorsal caudal-fin procurrent rays series (extending for ten neural spine tips), and presence of ten or eleven branchiostegal rays. Dorsal fin situated on a concavity on dorsal profile of trunk, short caudal peduncle (15.4-19.7% SL) and first anal-fin ray base posterior to the vertical through the base of the last dorsal-fin ray are other useful characters for identification shared with various other species of Trichomycterus (Ref. 75005).
Feeds on larvae of Diptera (Simulidae), Ephemeroptera and Trichoptera, indicating benthic feeding habits (Ref. 75005).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Wosiacki, W.B. and M. de Pinna, 2008. Trichomycterus igobi, a new catfish species from the Rio Iguaçu drainage: the largest head in Trichomycteridae (Siluriformes: Trichomycteridae). Neotrop. Ichthyol. 6(1):17-23. (Ref. 75005)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
اطلاعات بيشتر
اسامي عاممترادفسوخت و سازشکارچیانسم شناسي بوم زيستيتولید مثلبلوغتخم ریزیSpawning aggregationFecundityتخم هانمو تخم
Age/Sizeرشدطول - وزنطول - طولنوسانات طولیريخت ستجي بوسيله انداره گيريريخت شناسيتوزاد ( لارو)پويايي لارويبازسازیفراوانيBRUVS
مراجعآبزي پرورينمايه آبزي پرورينژادهاژنتيكElectrophoresesوارثبيماري هافرآوریNutrientsMass conversion
همكارانعکس هاStamps, Coins Misc.صداهاسيگواتراسرعتنوع شناگریمنطقه آبششيOtolithsمغزهابینایی
ابزارها
گزارش های ويژه
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منابع اينترنتي
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=0.00977 (0.00319 - 0.02993), b=3.02 (2.77 - 3.27), 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).
