Taxonomic Remarks
Neotype designation of Acipenser plecostomus in Boeseman 1968 (RMNH 182400) may be invalid if the smallest specimen in NRM LP 32 is part of the type series; for more details on synonymy of Hypostomus plecostomus see Boeseman (1968:32) and Isbrücker (1980:30). Mitochondrial D-loop sequences used in a molecular phylogeny of Hypostomus and related genera by Montoya-Burgos and Weber (in press, fig. 2; EMBL/GenBank AJ318351).
Περιβάλλον: περιβάλλον / κλιματική ζώνη / εύρος βάθους / εύρος διανομής
Οικολογία
; Γλυκού νερού; Υφάλμυρο βενθικό(ς); pH range: 6.2 - 8.2; dH range: ? - 28. Tropical; 20°C - 28°C (Ref. 2060); 12°N - 25°S, 60°W - 51°W
South America: Guianas (coastal region from the Oyapock River basin to the Essequibo River basin). Identity of reported introduced species to several Asian countries for the aquarium trade need further confirmation.
Μέγεθος / Βάρος / Ηλικία
Γεννητική Ωρίμανση: Lm ?  range ? - ? cm
Max length : 25.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 90186); common length : 28.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 12193)
This species is distinguished by the following characters: differs from species of the H. cochliodon group (H. macushi and H. taphorni in the Guianas) by having viliform teeth (vs. large spoon-shaped teeth); differs from other Guianese species of Hypostomus by having teeth bearing a short roughly rounded crown, with lateral cusp about half the length of the main cusp (vs. an elongated crown, with a small lateral cusp in coppenamensis, corantijni, crassicauda, gymnorhynchus,nematopterus, watwata), or sometimes with an enlarged lateral cusp (observed in H. gymnorhynchus from upper Maroni River Basin only, H. micromaculatus and H. paucimaculatus); differs from long-crown toothed species except H. watwata by the presence of a preanal plate (vs. absence); differs from H. watwata in having an azygous plate which is sometimes divided into two to three secondary platelets, bordering the posterior part of the supraoccipital and directly contacting the pterotic-supracleithrum, laterally bordered by two plates that contact only the pterotic-supracleithrum (vs. an azygous plate, often divided anteriorly in small secondary platelets, not connecting the pterotic-supracleithrum, and with two lateral areas divided in multiple platelets, 4-13, bordering the postero-lateral part of the supraoccipital and the posterior part of the pterotic-supracleithrum (Ref. 90186).
Cross section: oval.
Facultative air-breathing (Ref. 126274); This species inhabits the lower part of rivers still under tide influence, and characterized by a quiet flowing water and muddy substrate, and swamps (Ref. 90186). Feeds on algae and small crustaceans. Is cultured in ponds in Singapore and Hong Kong for the aquarium trade, where it is very popular (Ref. 2060).
Κύκλος ζωής και συμπεριφορά ζευγαρώματος
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Deposits eggs on smooth rocks. Eggs are guarded by one or both parents. May deposit eggs in depressions (Ref. 2060).
Weber, C., R. Covain and S. Fisch-Muller, 2012. Identity of Hypostomus plecostomus (Linnaeus, 1758), with an overview of Hypostomus species from the Guianas (Teleostei: Siluriformes: Loricariidae). Cybium 36(1):195-227. (Ref. 90186)
Κατάσταση Κόκκινου Καταλόγου IUCN (Ref. 130435: Version 2025-2 (Global))
Απειλή για τον άνθρωπο
Harmless
Ανθρώπινες χρήσεις
αλιεία: Εμπορικό(ά); Ενυδρείο: πολύ εμπορικό
Εργαλεία
Ειδικές εκθέσεις
Λήψη XML
Διαδικτυακές πηγές
Εκτιμήσεις βάσει μοντέλων
Δείκτης φυλογενετικής ποικιλότητας (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01905 (0.01591 - 0.02282), b=2.95 (2.92 - 2.98), in cm total length, based on LWR estimates for this species (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 2.5 ±0.26 se; based on food items.
Ελαστικότητα (Αναφ.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Assuming tmax>3; Fec = 3,000).
Ευπάθεια στην αλιεία (Ref.
59153): Low vulnerability (20 of 100).
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