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Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Eponymy: Rev Dr Christoph Samuel John (1747–1813) was a botanist and herpetologist and a medical missionary (1771–1813) at the Danish trading station of Tranquebar (now Tharangambadi), Tamil Nadu, not far from Madras (Chennai). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
marino demersal; rango de profundidad ? - 30 m (Ref. 3490). Tropical
Western Indian Ocean: west coast of India and Sri Lanka.
Tamaño / Peso / Age
Madurez: Lm ? range ? - ? cm
Max length : 30.0 cm TL macho / no sexado; (Ref. 3490); common length : 20.0 cm TL macho / no sexado; (Ref. 3490)
Short description
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 10 - 11; Radios blandos dorsales (total) : 25 - 29; Espinas anales: 2; Radios blandos anales: 7. Snout swollen, projecting beyond the ventral mouth. Mental pores surrounded by thickened skin, produced into two short, irregular tags between the median and first lateral pores. Teeth differentiated into large and small upper jaw, those in the outer row close-set and enlarged, but not canine-like. Lower jaw teeth uniformly villiform. Sagitta with a tadpole-shaped impression, the "tail" of which is expanded and deepened as a hollow cone. Gillrakers short and narrow, 6 or 7 on lower limb of first arch. Second part of dorsal fin with 1 spine and 25-229 soft rays. Swim bladder hammer-shaped, with 13 or 14 pairs of arborescent appendages, the first branching in the head.
Body shape (shape guide): fusiform / normal.
Occurs in coastal waters. Feeds on benthic worms and crustaceans. Marketed fresh and also dried salted.
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Lal Mohan, R.S., 1984. Sciaenidae. In W. Fischer and G. Bianchi (eds.) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51). Vol. 4. FAO, Rome. pag. var. (Ref. 3490)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesquerías: comercial
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00412 - 0.01928), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.3 ±0.39 se; based on food items.
Resiliencia (Referencia
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
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