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Acanthopagrus schlegelii (Bleeker, 1854)

Blackhead seabream
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Acanthopagrus schlegelii   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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 Ecology

Marine; brackish; demersal; depth range 15 - ? m. Subtropical; 43°N - 20°N, 107°W - 143°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | 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 / Size / Weight / Age

Maturity: Lm 29.1, range 10 - ? cm
Max length : 50.0 cm SL male/unsexed; (Ref. 559); max. published weight: 3.2 kg (Ref. 40637)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 11 - 12; Dorsal soft rays (total): 11; Anal spines: 3; Anal soft rays: 8.

Biology     Glossary (e.g. 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 | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

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

Main reference Upload your references | References | Coordinator | Collaborators

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

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; aquaculture: commercial; gamefish: yes
FAO - Aquaculture systems: production; Fisheries: landings; Publication: search | FishSource | Sea Around Us

More information

Trophic ecology
Food items
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Ecology
Ecology
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Life cycle
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Fecundities
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Distribution
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References

Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Aquaculture systems: production; Fisheries: landings; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 13.1 - 25.4, mean 23.7 °C (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).
Trophic level (Ref. 69278):  3.2   ±0.45 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (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.
Nutrients (Ref. 124155):  Calcium = 85.9 [43.0, 149.5] mg/100g; Iron = 1.07 [0.60, 2.18] mg/100g; Protein = 19.5 [18.3, 20.6] %; Omega3 = 0.279 [0.169, 0.478] g/100g; Selenium = 22.2 [10.4, 45.1] μg/100g; VitaminA = 6.4 [1.9, 21.1] μg/100g; Zinc = 0.786 [0.522, 1.168] mg/100g (wet weight);