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Perciformes/Zoarcoidei (Eelpouts and pricklebacks) >
Bathymasteridae (Ronquils)
Etymology: Ronquilus: Spanish, "ronquillo" = slightly hoarse; jordani: Named after David Starr Jordan, U.S. ichthyologist (Ref. 6885).
Eponymy: Dr David Starr Jordan (1851–1931) was a leading American ichthyologist, physician, educator, peace activist and believer in eugenics; moreover, he was founding President of Stanford University. [...] (Ref. 128868), visit book page.
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale; distribuzione batimetrica 3 - 275 m (Ref. 6793). Temperate; - 37°N
Eastern Pacific: Pribilof Canyon in the Bering Sea and Amchitka Island in the Aleutian chain to Monterey Bay, California, USA.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 20.0 cm TL maschio/sesso non determinato; (Ref. 48889)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 41 - 48; Spine anali: 0; Raggi anali molli: 31 - 34. Caudal rounded (Ref. 6885). Males orange dorsally, dull olive green ventrally; vague darker vertical bars on sides, fine yellow longitudinal lines below lateral line canal, and yellow on upper part of pectoral fin; golden bars below eye and across middle of cheek; black on top of head and across occiput, and behind eye; dusky blotch at anterior end of dorsal fin; black margined with yellow on dorsal and caudal fins; iridescent light blue margined with black on anal fin with golden spots at base; pelvic fins and lower parts of pectorals black. Females olive green dorsally, lighter ventrally; yellow longitudinal lines on sides; reddish on occiput; dusky blotch on anterior part of dorsal fin; bright orange on edges of dorsal and caudal; pale light blue margined with brown on anal; white on pelvic fins (Ref. 6885).
Usually among rocks (Ref. 2850).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Pesca: commerciale; Acquario: Acquari pubblici
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Ref.
123201): 3.2 - 8.9, mean 5.7 °C (based on 254 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.29 se; based on food items.
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).
