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Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Pimelodella: Diminutive latinized of greek, pimele = fat + Greek, odous, odella = little teeth (Ref. 45335); guato: Name 'guato' in honor of the indigenous Guató people who historically inhabited the type locality.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين نزديك كف زي. Tropical
South America: Brazil.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 12.8 cm SL جنس نر / بدون خواص جنسي; (Ref. 132465)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 2; شعاع نرم باله پشتي (کل) : 6; شعاع نرم باله مخرجي: 7 - 8; مهره ها: 41 - 42. This species is distinguished by the following set of characters: long maxillary barbel, reaching at least the anal-fin terminus when parallel to main body axis; supraoccipital process reaching the anterior nuchal plate; robust dorsal-fin spine, bearing small, straight spinules along three-fourths of its posterior margin; 41–42 (rarely 43 or 44) total vertebrae; body slightly darkened, dorsal fin with light brown stripe near its origin, followed by a hyaline stripe, and distal half dark and by the dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third; preoperculomandibular laterosensory canal openings at dentary not particularly large; brown midlateral stripe wide and dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third; posterior margin of pectoral-fin spine bearing 13-23 large, retrorse blades along basal two-thirds; adipose fin 2.5 to 3.0 times in SL; epiphyseal branch of supraorbital canal on the head (S6) emerging as a single pore (Ref. 132465).
Body shape (shape guide): elongated; Cross section: oval.
The species inhabits shallow, moderately flowing waters with sandy substrate. They are observed to be abundant during the rainy season and is easy to catch at night (Ref. 132465).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Pierre, V. and V. Slobodian, 2024. A new species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai basin, Brazil, with a discussion regarding its distribution. Neotrop. Ichthyol. 2024; 22(1):e230110. (Ref. 132465)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00851 (0.00401 - 0.01809), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
3.6 ±0.5 se; based on size and trophs of closest relatives |
جهندگی (مرجع 120179) |
متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Preliminary K or Fecundity.). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Moderate vulnerability (42 of 100). 🛈 |