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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Etymology: Cathorops: Greek, kathorao = to observe, to watch + Greek, ops = appearance (Ref. 45335); spixii: The name is dedicated to the ichthyologist of the 19th century, J.B. de Spix (Ref. 35381).
Eponymy: Johann Baptist Ritter von Spix (1781–1826) was a German naturalist working in Brazil (1817–1820). [...] (Ref. 128868), visit book page.
More on author: Agassiz.
Taxonomic Remarks
Taylor & Menezes (1977) indicate that two or more species may be included here.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino; salmastro demersale; distribuzione batimetrica 1 - 50 m (Ref. 5217). Tropical; 13°N - 23°S, 77°W - 34°W
Western Atlantic: Atlantic and Caribbean rivers and estuaries from Colombia to Brazil.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 16.4, range 10 - 22.4 cm
Max length : 30.0 cm TL maschio/sesso non determinato; (Ref. 3265); common length : 20.0 cm TL maschio/sesso non determinato; (Ref. 3265); peso massimo pubblicato: 97.50 g (Ref. 118626)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
3 pairs of barbels on rostral region, 2 pairs on lower jaw, 1 pair on posterior end of maxilla; body dark brown or black dorsally, pale yellow ventrally; fin membranes brown, with small black spots (Ref. 13608). Head is widely flattened from above, nostril rounded, mouth inferior. The cephalic surface hardly reaches the level of the eyes (Ref. 35381).
Body shape (shape guide): fusiform / normal.
Found in shallow coastal marine waters and brackish estuaries, lagoons and river mouths. Also in hypersaline waters (Ref. 5217). Feeds mainly on invertebrates and small fishes. Juveniles feed on amphipods, isopods and copepods (Ref. 35381). Flesh considered good quality (Ref. 5217). Sold locally.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Marceniuk, A.P. and C.J. Ferraris Jr., 2003. Ariidae (Sea catfishes). p. 447-455. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the freshwater fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 39852)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Traumatogenic (Ref. 58010)
Usi umani
Pesca: scarso interesse commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 24.9 - 28.2, mean 27.4 °C (based on 118 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00548 - 0.00797), b=3.06 (3.02 - 3.10), in cm total length, based on LWR estimates for this species (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.5 ±0.1 se; based on diet studies.
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (20 of 100).
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Nutrienti (Ref.
124155): Calcium = 122 [59, 299] mg/100g; Iron = 1 [1, 2] mg/100g; Protein = 17 [15, 19] %; Omega3 = 0.267 [0.142, 0.513] g/100g; Selenium = 44.3 [21.0, 99.1] μg/100g; VitaminA = 37.5 [12.6, 116.5] μg/100g; Zinc = 1.71 [1.12, 2.74] mg/100g (wet weight);