Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển Sống nổi và đáy; Mức độ sâu 20 - 100 m (Ref. 76777), usually ? - 100 m (Ref. 76777). Tropical
Northwest Pacific: East Asian Shelf to the Sea of Japan and Pacific coast of southern Japan (except Ryukyu and Ogasawara Is.), including the western part of Taiwan and South China Sea; questionable from Singapore.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 20.1 cm SL con đực/không giới tính; (Ref. 76777)
Các tia vây lưng cứng (tổng cộng) : 11; Các vây lưng mềm (tổng cộng) : 15 - 16; Tia cứng vây hậu môn: 3; Tia mềm vây hậu môn: 9 - 10. This species is distinguished by the following characters: lower lip fleshy with dense cluster of short papillae and barbels anteriorly, on and behind chin with 10 pores, 4 anterioriormost pairs hidden by papillae, slightly scaly posteriorly (posterior abdominal part of angular of lower jaws; maxilla with small scales; 5-7 alternating whitish and dark-brown bands on head and body, the first (often indistinct) from just before eye to posterior of lower jaw, the second somewhat oblique, becoming wider posteriorly, from nape to between eye and pelvic-fin base, third one from base of 2nd and 3rd dorsal-fin spines to just behind pelvic-fin base, the fourth from 7th and 8th dorsal-fin spine base to just before 1st anal-fin spine, the fifth from 2nd and 3rd dorsal-fin soft ray base to anterior of anal-fin soft ray base, the sixth on caudal peduncle, and the seventh (often indistinct) on caudal-fin base; soft rayed portions of dorsal and anal fins are somewhat rounded posteriorly and slightly angulated posteriorly, respectively, spinous dorsal-fin and anal fin (until first anal-fin ray) membranes are dense black; membrane of soft dorsal- anal- (especially in juveniles and young) and caudal-fins somewhat yellowish in fresh specimens, a dense black margin posteriorly, about same width as pupil diameter (juveniles) or half of this width (adults); pelvic-fin tip not reaching to base of 1st anal-fin spine when depressed; pored lateral-line scales 44-47 (rarely 43 or 48); procumbent spine-like process (exposed tip of first pterygiophore) at origin of dorsal fin usually covered by predorsal scales (Ref. 76777).
Inhabits the sublittoral zone on sandy mud bottom (Ref. 11230). Most specimens were collected by bottom trawl in depths less than 100 m and smaller individuals (about 10.0 cm SL) by set nets at 20-50 m (Ref. 76777).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Iwatsuki, Y. and B.C. Russell, 2006. Revision of the genus Hapalogenys (Teleostei: Perciformes) with two new species from the Indo-West Pacific. Mem. Mus. Victoria 63(1):29-46. (Ref. 76777)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 9.7 - 25, mean 19 °C (based on 249 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.00834 - 0.04158), b=3.01 (2.81 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 4.1 ±0.68 se; based on food items.
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
