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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Delturinae
Etymology: Hemipsilichthys: Greek, hemi = half + Greek, psilos = hairless + Greek, ichtys = fish (Ref. 45335); nimius: From the Latin nimius meaning nimiety, in allusion to the supernumerary rays of the dorsal fin, which has nine branched rays (Ref. 50588).
More on authors: Pereira, Reis, Souza & Lazzarotto.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين نزديك كف زي. High altitude
South America: Perequê-Açu and Taquari river basins, southeastern Brazil. Collected in localities between 100 and 370 m above sea level.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 10.5 cm SL جنس نر / بدون خواص جنسي; (Ref. 50588)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 7 - 9; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 6. Eight (rarely 7 or 9) branched rays in the dorsal fin; dorsal-fin membrane expanded posteriorly, connecting proximal half of the last dorsal-fin ray to the dorsum; teeth cusps equal in size (Ref. 50588).
Body shape (shape guide): elongated.
Type specimens were collected in small coastal streams flowing through well-preserved Atlantic forest; in localities between 100 and 370 m a.s.l., always in rocky substrate with fast flowing, clear water, under direct sunlight, and depths between 10 and 50 cm. Underwater observations indicate that this species is most active during the night, grazing on the bottom (Ref. 57859).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Pereira, E.H.L., R.E. Reis, P.F.M. Souza and H. Lazzarotto, 2003. A new species of the loricariid catfish genus Hemipsilichthys from southern Rio de Janeiro coastal rivers, southeastern Brazil. Zootaxa 285:1-10. (Ref. 50588)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: از بی علاقه گی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00537 (0.00207 - 0.01392), b=3.13 (2.90 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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جهندگی (مرجع 120179) |
زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |