Klassifizierung / Names
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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Etymology: Netuma: A Tamil word that means "dance".
More on author: Rüppell.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser; süßwasser; brackwasser demersal; amphidrom (Ref. 51243); tiefenbereich 10 - 195 m (Ref. 12260). Subtropical; 34°N - 34°S, 32°E - 154°E
Indo-West Pacific: known with certainty from the Red Sea and the northwestern Indian Ocean. Also reported from Australia, Polynesia and Japan and rarely in the Mekong delta (Ref. 12693).
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm 36.3, range 33 - 45 cm
Max length : 185 cm TL Männchen/unbestimmt; (Ref. 30573); common length : 70.0 cm TL Männchen/unbestimmt; (Ref. 9987); max. veröff. Gewicht: 1.0 kg (Ref. 4883)
A marine species often found in estuaries, but rarely enters freshwater. Typically euryhaline (Ref. 3876). Reported to occasionally ascend into fresh water (Ref. 12693). Recorded at temperatures ranging from 26-29°C. Feeds mainly on crabs, prawns, mantis shrimps (Squilla species) but also on fishes and mollusks. An important food fish. Marketed mostly fresh; often dried.
Incubates eggs in the mouth. The fry continue to take refuge in the mouths of the male fish for the first 2 months and once they leave, the males start to eat avidly and may consume their own young.
Rainboth, W.J., 1996. Fishes of the Cambodian Mekong. FAO species identification field guide for fishery purposes. FAO, Rome, 265 p. (Ref. 12693)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Traumatogenic (Ref. 58010)
Nutzung durch Menschen
Fischereien: kommerziell; Sportfisch: ja
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Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 22.1 - 28.3, mean 26.8 °C (based on 839 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00669 - 0.00901), b=3.07 (3.03 - 3.11), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.5 ±0.2 se; based on diet studies.
Generation time: 17.2 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Widerstandsfähigkeit (Ref.
120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.06-0.45; tm=2-4; tmax=19; Fec=34-88).
Prior r = 0.31, 95% CL = 0.20 - 0.46, Based on 4 data-limited stock assessments.
Anfälligkeit der Fischerei (Ref.
59153): Moderate to high vulnerability (48 of 100).
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Klimaanfälligkeit (Ref.
125649): High vulnerability (57 of 100).
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Nährstoffe (Ref.
124155): Calcium = 26.3 [14.3, 64.9] mg/100g; Iron = 0.78 [0.47, 1.40] mg/100g; Protein = 18.1 [16.3, 19.9] %; Omega3 = 0.348 [0.179, 0.692] g/100g; Selenium = 46.2 [23.4, 97.4] μg/100g; VitaminA = 6.46 [2.31, 18.39] μg/100g; Zinc = 0.682 [0.451, 1.055] mg/100g (wet weight);