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> Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: More on author: Richardson.

Environment: milieu / climate zone / depth range / distribution range Ecologia

marino benthopelagico; distribuzione batimetrica 25 - 110 m (Ref. 43239). Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Northwest Pacific: along the coasts of China and Taiwan, from the Gulf of Pohai to Hainan.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 13.7 cm SL maschio/sesso non determinato; (Ref. 10101)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 10 - 12; Raggi dorsali molli (totale) : 24 - 48; Spine anali: 2; Raggi anali molli: 7 - 9; Vertebre: 24 - 26. Snout blunt. Interorbital space wide (8.0-9.7% SL). Anal soft rays usually eight. High gill raker count (6-7 + 1 + 10-14). Scales on throat ctenoid.

The most common species of Johnius (Johnius) in Chinese waters (Ref. 10101). Sandy-muddy bottoms and muddy bottoms from 25-110 m depth (Ref. 43239).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Sasaki, K., 1990. Johnius grypotus (Richardson, 1846), resurrection of a Chinese sciaenid species. Jap. J. Ichthyol. 37(3):224-229. (Ref. 10101)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 26 September 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Informazioni ulteriori

Trophic ecology
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Ecology
Ecologia

Population dynamics
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Length-length rel.
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Life cycle
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Physiology
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Estimates based on models

Preferred temperature (Ref. 123201): 13.1 - 23.6, mean 18.3 °C (based on 41 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00891 (0.00410 - 0.01937), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Resilienza (Ref. 120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Johnius grypotus (Richardson, 1846)