分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Acanthuriformes (Surgeonfishes)
鱸形目 (Surgeonfishes) >
Leiognathidae (Slimys, slipmouths, or ponyfishes)
鰏科 (Slimys, slipmouths, or ponyfishes) > Gazzinae
Etymology: ryukyuensis: Named for its type locality, Okinawa, Japan. Okinawa Prefecture used to be the Ryukyu Kingdom..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的.
Northwest Pacific: Japan.
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 9.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 130900)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is distinguished by the following set of characters: body depth 35-45% SL, 126-167% HL; posterior margin of adipose eyelid not incised (similar to E. rivulatus); upper branch of postorbital canal is short, just reaching to or very slightly extending beyond posterior margin of preopercle (similar to E. berbis); anterior tip of scaly area on breast just reaching to vertical through junction of interopercle and subopercle at margin of operculum; interspace of pelvic keels naked; scale rows above and below lateral line 11-17 and 17-24, respectively (some of both 29-38); scale rows between lowest base of pectoral fin and pelvic-fin insertion 8-9; markings on anterior dorsolateral body comprised of short wavy lines or oblique lines; second anal-fin spine short, not extending beyond base of fifth soft ray (Ref. 130900).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Suzuki, T. and S. Kimura, 2024. Taxonomic revision of the genus Equulites Fowler 1904 (Acanthuriformes: Leiognathidae). Ichthyol. Res. 71:213-259. (Ref. 130900)
人類使用
漁業: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
營養階層 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).