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Centrarchiformes (Basses) >
Percichthyidae (Temperate perches)
Etymology: Guyu: A word of the kuku yolangi, aboriginal people in Australia. Kuyu=freshwater fish; "k" is pronounced as "g" in N. Queensland. The species "wujalwujalensis" is due to its ocurrences in the town of Wujal Wujal.(Brad & Mark Kennard, Griffith University, 1993); wujalwujalensis: Named for the township Wujal Wujal at the base of the Bloomfield Falls.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten pelagiska; pH range: 5.0 - 6.0; djupintervall 0 - 4 m (Ref. 40636). Tropical; 21°C - 23°C (Ref. 40636)
Oceania: Australia.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 10.1 cm SL hane/ej könsbestämd; (Ref. 40636)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 6 - 7; Mjukstrålar i ryggfenan (totalt) : 8 - 9; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 7 - 9; Ryggkotor: 25 - 26. Head deep and laterally compressed; pores on head and lower jaw; snout tapered. Insertion of the pelvic fin in line with the third dorsal spine and well behind pectoral fin base. Pelvic girdle length at least twice its width. Caudal fin rounded. Cleithrum's posterior margin and opercular spines without serrations; post temporal serrated.
Inhabits a broad (30-40 meters wide), clear, flowing stream with a rocky bottom. Temperature ranges between 15° and 25°C and pH from 5.0 to 6.0. During the day it shelters in the cover of undercut banks, boulders, log snags and submerged root masses, darting into crevices if threatened. Nocturnally active, feeding on insects and their larvae, crustaceans, fishes and plant matter. Sexual maturity is reached at a length of about five centimeters. One of the most recently discovered Australian freshwater fish species (Ref. 44894).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Pusey, B.J. and M.J. Kennard, 2001. Guyu wujalwujalensis, a new genus and species (Pisces: Percichthyidae) from northeastern Queensland, Australia. Ichthyol. Explor. Freshwat. 12(1):17-28. (Ref. 40636)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00400 - 0.02738), b=3.01 (2.79 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
