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Ovalentaria/misc (Various families in series Ovalentaria) >
Embiotocidae (Surfperches)
Etymology: Ditrema: Greek, di = two + Greek, trema = hole (Ref. 45335).
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.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin démersal. Subtropical
Distribution
Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
Northwest Pacific: Japan.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 20.8 cm SL mâle / non sexé; (Ref. 76763)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 9 - 10; Rayons mous dorsaux (Total) : 19 - 22; Rayons mous anaux: 25 - 29; Vertèbres: 35 - 40. This species is distinguished by the following characters: D 9-10 (mode 9) spines; 20-24 (mode 21) scales below lateral line; posterior end of dorsal-fin base before the anal-fin base; body coppery-red when fresh; anterior suborbital area with dark rounded marking margined with white lines, or broad dark inverse trapezoid marking; preopercle with dark spot at posteroventral corner, dark line along posterior margin; spinous portion of dorsal fin often with longitudinal black stripe on lower half; faint longitudinal dark line along anal-fin base; pelvic-fin base lacking a distinct black spot anteriorly (Ref. 76763).
Body shape (shape guide): short and / or deep.
Adults inhabit rocky shores among Sargassum (Ref. 76763). Viviparous, female carries the developing young (Ref. 205).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Viviparous, female carries the developing young (Ref. 205).
Katafuchi, H. and T. Nakabo, 2007. Revision of the East Asian genus Ditrema (Embiotocidae), with description of a new subspecies. Ichthyol. Res. 54:350-366. (Ref. 76763)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01950 (0.00850 - 0.04473), b=2.97 (2.77 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.5 ±0.3 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate vulnerability (38 of 100). 🛈 |