Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 25 - 110 m (Ref. 43239), usually - m (Ref. ). Tropical; 0°C -
Northwest Pacific: along the coasts of China and Taiwan, from the Gulf of Pohai to Hainan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.7 cm SL male/unsexed; (Ref. 10101)
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
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 13.1 - 23.6, mean 18.3 °C (based on 41 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00435 - 0.01912), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (14 of 100) .