Classification / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Guyanancistrus: Composed from Guyana + see under Ancistrus; brownsbergensis: Named after the Brownsberg Nature Park in Brownsberg Mountains, in which it was found, and which is presently under threat from illegal gold mining.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθικό(ς); pH range: 7.0 - 7.5. Tropical; 23°C - 23°C (Ref. 116863)
South America: upper Kumbu Creek in the Brownsberg Nature Park, Brownsberg Mountains in Suriname.
Μέγεθος / Βάρος / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm SL αρσενικό/απροσδιόριστο; (Ref. 116863)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 2; Μαλακές ραχιαίες ακτίνες (συνολικά) : 7; Μαλακές εδρικές ακτίνες: 6.
The type locality in the upper Kumbu Creek at Kumbu Falls (430 m asl) is a small mountain stream with 2.5-3.7 m width, 28-50 cm water depth, with cool (23.1-23.2°C) water, high dissolved oxygen content of 93-96% saturation and 7.08-7.72 mg/L, a pH of 7.0-7.5, conductivity 30.8-31.6 μS/cm, a current strength of 0.29-0.56 m/s taken on 12 July 2014, bottom substrate consisting of sand, gravel, pebbles, boulders and bedrock, and mostly clear water. The creek is sheltered by overhanging vegetation, leaf litter and some woody debris (Ref. 116863).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Fisch-Muller, S., J.H.A. Mol and R. Covain, 2018. An integrative framework to reevaluate the Neotropical catfish genus Guyanancistrus (Siluriformes: Loricariidae) with particular emphasis on the Guyanancistrus brevispinis complex. Plos ONE 13(1):e0189789. (Ref. 116863)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
αλιεία: χωρίς ενδιαφέρον
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00719 - 0.03336), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).