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Acanthopagrus schlegelii (Bleeker, 1854)

Blackhead seabream
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Acanthopagrus schlegelii   AquaMaps   Data sources: GBIF OBIS
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Chinese Taipei (Taiwan) country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: commercial | Ref: FAO, 2000
Aquaculture: commercial | Ref: FAO, 1997
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from northern Taiwan (Tung-hsiao, Tai-chung and Chang-hwa) (Ref. 43515). Collected from mangrove creeks in northwestern Taiwan (Shin-Feng and Chu-Nan) and southwestern Taiwan (Pu-Tai, Pei-Men, and Syh-Tsao) (Ref. 48455). Reported from the Penghu Islands (Ref. 43515, 55073). The first successful larviculture in Taiwan occurred in 1979 (Ref. 40297). Also Ref. 11230, 36073, 41299.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tw.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Shen, S.C. (ed.), 1993
National Database: The Fish Database of Taiwan

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Sparidae (Porgies)
Etymology: Acanthopagrus: Greek, akantha = thorn + Greek, pagros, a kind of fish (Ref. 45335).
  More on author: Bleeker.

Environment: milieu / climate zone / depth range / distribution range Οικολογία

Θαλασσινό(ά); Υφάλμυρο βενθικό(ς); εύρος βάθους 15 - ? m.   Subtropical; 43°N - 20°N, 107°W - 143°W

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Northwest Pacific: southern Hokkaido, Japan to the southern Korean Peninsula, middle and north coast of the Republic of China and Taiwan. Not occurring in the Ryukyu Islands.

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: Lm 29.1, range 10 - ? cm
Max length : 50.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 559); μεγ. δημοσιευμένο βάρος: 3.2 kg (Ref. 40637)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 11 - 12; Μαλακές ραχιαίες ακτίνες (συνολικά) : 11; Εδρικές άκανθες: 3; Μαλακές εδρικές ακτίνες: 8.

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Found in bays, shallow rocky reefs, and in brackish waters (Ref. 41299). Feeds on mollusks and polychaetes. Spawns in the spring and summer months (Ref. 41299). It is parasitised by the monogenean A. spari on the fins and body surface (Ref. 124057).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Sex change occurs at about 5 years of age (Ref. 36558).

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 03 December 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

αλιεία: Εμπορικό(ά); Υδατοκαλλιέργειες: Εμπορικό(ά); αλιεία αναψυχής: ναί
FAO(Aquaculture systems: Παραγωγή; αλιεία: Παραγωγή; publication : search) | FishSource | Η θάλασσα γύρω μας

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Length-weight rel.
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References
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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 13.1 - 25.4, mean 23.7 (based on 68 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02138 (0.01284 - 0.03560), b=2.99 (2.85 - 3.13), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.2   ±0.45 se; based on food items.
Ελαστικότητα (Ref. 120179):  Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (tm=2).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (37 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (81 of 100).
Price category (Ref. 80766):   High.