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Polysteganus undulosus (Regan, 1908)

Seventyfour seabream
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Polysteganus undulosus
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South Africa country information

Common names: Seventy-four, Vier-en-sewentig
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Smith, J.L.B. and M.M. Smith, 1986
Importance: minor commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Ranges from Natal to the Cape of Good Hope (Ref. 3198). Stock critical/severely depleted; highly esteemed by recreational and commercial line fisheries (Ref. 4332). Also Ref. 3507, 12484.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Smith, J.L.B. and M.M. Smith, 1986
National Database:

Common names from other countries

Denté maculé, Dentón manchado, Seventy-four, ... more

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Eupercaria/misc (Various families in series Eupercaria) 鱸形目 (Various families in series Eupercaria) > Sparidae (Porgies) 鯛科 (Porgies)
Etymology: Polysteganus: Greek, polys = a lot of + Greek, stego, stege = covered (Ref. 45335).
  More on author: Regan.

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋 礁區魚類; 海洋洄游的 (Ref. 51243); 深度上下限 30 - ? m (Ref. 5213).   亞熱帶的; 17°S - 30°S

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Western Indian Ocean: southern Mozambique to Durban, South Africa.
西印度洋: 莫三比克南部到南非的德爾班。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - 35 cm
Max length : 120 cm TL 雄魚/尚未辨別雌雄; (Ref. 3507); common length : 80.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 3507); 最大體重: 16.0 kg (Ref. 4699)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 12; 背的軟條 (總數) : 10; 臀棘: 3; 臀鰭軟條: 8 - 9.

生物學特性     字彙 (例如 epibenthic)

Found over rocky reef and banks of deep waters. Carnivorous species which feeds mainly on fish and squid (Ref. 5213). An excellent food fish. Sold fresh.

發現在岩石的礁與深水域的淺堆上了。 主要捕食魚與烏賊的肉食性種.(參考文獻 5213) 一個優良的食用魚。 生鮮販賣了。

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

西印度洋: 莫三比克南部到南非的德爾班。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Smith, J.L.B. and M.M. Smith, 1986. Sparidae. p. 580-594. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3198)

IUCN 瀕危狀態 (Ref. 130435)

  極危 (CR) (A2bcd); Date assessed: 01 December 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




人類使用

漁業: 低經濟; 游釣魚種: 是的
FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02455 (0.01209 - 0.04986), b=2.96 (2.79 - 3.13), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  4.1   ±0.60 se; based on food items.
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.18-0.28).
Fishing Vulnerability (Ref. 59153):  High vulnerability (57 of 100).
價格種類 (Ref. 80766):   Very high.