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Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Acanthopagrus: Greek, akantha = thorn + Greek, pagros, a kind of fish (Ref. 45335); pacificus: Name refers to its distribution in the western Pacific.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina; brackvatten pelagic-neritic. Tropical
Western Pacific: Japan to Australia.
Length at first maturity / Size / Vikt / Age
Könsmognad: Lm ?, range 21 - ? cm
Max length : 50.0 cm SL hane/ej könsbestämd; (Ref. 86288); 34.8 cm SL (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 11; Mjukstrålar i ryggfenan (totalt) : 11; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 8 - 9. This species is distinguished from its congeners by the following set of characters: 3.5 scale rows between fifth dorsal-fin spine base and lateral line; ventral edge of first two infraorbitals above rear end of maxilla straight in fish less than ca 30 cm SL, but a moderate concavity of the ventral edge of the first two infraorbitals above the posterior part of upper jaw obvious in specimens about 35 cm SL; front edge of dorsal scaly area on head slightly curved (convex) without small scales; total gill rakers 15-19, modally 17; deeper body, 45-48% SL (mean 47% SL); A III, 8-9, usually III, 8; smaller orbit diameter, 2.9-4.9 (mean 3.7) in head length/orbit diameter; second anal-fin spine (2AS) clearly longer than third anal-fin spine (3AS), 2AS/3AS 1.2-1.56 (mean 1.4); scales on preopercle flange absent; pelvic and anal fins uniformly dark black (Ref. 86288).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Mainly in brackish waters of estuaries and inlets, coastal rivers and tidal creeks, occasionally entering lower sections of freshwater streams (Ref. 44894). Juveniles inhabit protected bays and estuaries (Ref. 47715). Usually occurs singly or small groups, but may migrate in schools (Ref. 48635). A popular angling species, often caught with hook and line (Ref. 44894).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Iwatsuki, Y., M. Kume and T. Yoshino, 2010. A new species, Acanthopagrus pacificus from the Western Pacific (Pisces, Sparidae). Bull. Natl. Mus. Nat. Sci., Ser. A, 36(4):115-130. (Ref. 86288)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; Vattenbruk: kommersiell; Akvarium: Offentliga akvarier
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01698 (0.01081 - 0.02667), b=3.06 (2.93 - 3.19), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.6 ±0.5 se; based on diet studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tm=1.15).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
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