分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes)
毛鼻鯰科 (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Scleronema: Greek, skleros = hard + Greek,nema = filament (Ref. 45335); mate: Named for the herb ‘mate’ used as an infusion in a traditional drink (‘chimarrão’) from South Brazil, Argentina, and Uruguay. Also, the type locality, Venâncio Aires, is known as the Terra do Chimarrão; noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的.
South America: Brazil (4 tributaries of the rio Jacuí (rio Caí, rio Pardo, rio Taquari, and rio dos Sinos), laguna dos Patos system.
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 122319)
簡短描述
型態特徵 | 形態測量圖
背的軟條 (總數): 8-10; 臀鰭軟條: 6 - 7; 脊椎骨: 34 - 35. This species is distinguished from all its congeners, except operculatum by the following characters: presence of the rounded blotches at the midlateral line as large as or
smaller than opercle (vs. rounded blotches larger than opercle or absent); differs from S. operculatum by having the maxillary barbel longer than half-length of the head (vs. shorter than half-length of head); tips of the pectoral-fin rays not extending beyond the interadial membrane (vs. extending beyond interadial membrane), skin flap in the posterior margin of the opercle rounded and short (vs. skin flap pointed and long); fleshy flap at the base of the maxillary barbel, thin, restricted to the maxilla and with distal margin rounded (vs. fleshy flap located anteriorly, thick, prolonged up to
the snout and with distal margin straight); caudal fin uniformly brown (vs. fin with a transversal black bar distally) (Ref. 122319).
: Inhabits rivers and streams with sand- and gravel bottoms. In the rio Pardo basin, the species is collected syntopically with S. macanuda (Ref. 122319).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Ferrer, J. and L.R. Malabarba, 2020. Systematic revision of the Neotropical catfish genus Scleronema (Siluriformes: Trichomycteridae), with descriptions of six new species from Pampa grasslands. Neotrop. Ichthyol. 18(2):1-81. (Ref. 122319)
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俗名同種異名新陳代謝捕食者生態毒物學繁殖成熟度產卵場產卵群集孕卵數卵卵發育
年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00282 - 0.01550), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).