Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Stichaeidae
(Pricklebacks) > Stichaeinae
Etymology: Ernogrammus: Greek, ernos, -eos, -ous = bud, shoot, descendenat + Greek, gramma = letter, mark, signal (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 142 m (Ref. 50610). Temperate
Northwest Pacific: Japan to the Gulf of Po-Hai (Gulf of Chihli), the Sea of Japan, and the southern Kuril Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm SL male/unsexed; (Ref. 559)
Inhabit coastal, near rocky reefs among algae and rocks; also brackish waters (Ref. 51666). This nocturnal fish hide between stones during the day and move to sandy areas in the evening for foraging. Feeds mainly on polychaetes and mysids, decapod crustaceans, fishes, algae and sipunculans. A solitary species with low level of contacts and aggression. Potential predators include Squalus acanthias, Sebastes taczanowskii, and S. trivittatus, sea scorpions Myoxocephalus, and cormorants (Ref. 86742). Oviparous, eggs are guarded by the male (Ref. 58332).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 3.8 - 20.6, mean 15.4 (based on 196 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00251 - 0.01000), b=3.07 (2.89 - 3.25), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (37 of 100) .