رده بندی / نامها
اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين نزديك كف زي. Tropical
South America: Brazil, Colombia and Venezuela.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 14.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 36713)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 2; شعاع نرم باله پشتي (کل) : 7; شعاع نرم باله مخرجي: 3 - 5. This species is distinguished from its congeners by the following characters: peculiar colouration, with conspicuous large dark bars over a yellowish background on head and body on young, faded on adults, but always present on fins; with more than four fragmented plates between canal plate and opercle; short interorbital distance 21-34% in head length (Ref. 129180).
Body shape (shape guide): elongated; Cross section: oval.
Facultative air-breathing in the genus (Ref. 126274); This species was mainly recorded from black waters of the Rio Negro and its tributaries in Brazil. It is always associated with fast-flowing waters. From field collections along the Rio Negro, this species can be easily found on the large logs used on floating houses where the current is swift, or they can inhabit large bedrocks with strong currents. However, no dimorphic males were found on bedrock in strong currents, instead, two dimorphic males were collected inside crevices on floating logs taking care of clutches of eggs and probably established their nests during the reproductive period on the floating logs, with low current. The males remained on top of the clutch of eggs, fanning them constantly with the pectoral-fin branched rays and the enlarged pelvic fins covering the clutch completely and might be used as protection. The mass of eggs were collected and brought to the lab, where these started to break and the hatchlings were quickly released. All hatchlings were fast and active swimmers, carrying a large yolk sac. Eggs with small black dots usually seem ready to release the young; while eggs without the black dots seem not to be mature enough to hatch. Adult specimens were dissected to determine sex and gut contents: mature males with elongated pelvic fins showed testes well developed, and all specimens presented the intestine full of detritus (Ref. 129180).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Silva, R.R. and L.H. Rapp Py-Daniel, 2018. Redescription of Dekeyseria picta (Siluriformes; Loricariidae), a poorly known ancistrin from the Amazon and Orinoco Basins. J. Fish Biol. 92(5):1446-1462. (Ref. 129180)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.01549 (0.00729 - 0.03291), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
2.0 ±0.00 se; based on food items. |
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). 🛈 |