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Cynoscion arenarius Ginsburg, 1930

Sand weakfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Cynoscion arenarius   AquaMaps   Data sources: GBIF OBIS
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Image of Cynoscion arenarius (Sand weakfish)
Cynoscion arenarius
Picture by NOAA\NMFS\Mississippi Laboratory


United States (contiguous states) country information

Common names: Sand seatrout, Seatrout
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 26938.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Robins, C.R. and G.C. Ray, 1986
National Database:

Common names from other countries

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

Teleostei > Eupercaria/misc (Various families in series Eupercaria) 鱸形目 (Various families in series Eupercaria) > Sciaenidae (Drums or croakers) 石首魚科 (Drums or croakers)
Etymology: Cynoscion: Greek, kyon = dog + Greek, odous = teeth + Greek, skion, skiaina = barbel, red mullet (Ref. 45335).
  More on author: Ginsburg.

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

海洋; 半鹹淡水 居於水底的.   亞熱帶的; 30°N - 18°N, 98°W - 80°W

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

Western Atlantic: Florida, USA and Gulf of Mexico to Bay of Campeche, Mexico.
西大西洋: 美國的佛羅里達與墨西哥灣到坎佩切灣,墨西哥。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 14.0  range ? - ? cm
Max length : 63.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 40637); common length : 35.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 3702); 最大體重: 2.8 kg (Ref. 40637); 最大年齡: 5 年 (Ref. 58079)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 9 - 11; 背的軟條 (總數) : 25 - 29; 臀棘: 2; 臀鰭軟條: 10 - 12. Colour uniform silvery grey above, without conspicuous spots, silvery below. Pelvic and anal fins pale to yellowish. A faint dark area at bases and axial of pectoral fins. Inside opercle darkish, often visible externally. Mouth large, oblique, lower jaw slightly projecting. Upper jaw with a pair of large canine-like teeth at tip. Lower jaw with a row of widely spaced larger inner-row teeth, gradually increasing in size posteriorly. Chin without barbel or pore, snout with 2 marginal pores. Gas bladder with a pair of horn-like anterior appendages. Soft portion of dorsal fin with few small scales rows at base between soft fin rays (Ref 51721).
顏色均勻的銀灰色的上方, 沒有顯著的斑點, 下面銀色的。 腹鰭與臀鰭灰白的到淡黃色的。 在基底的一個模糊的黑區域與軸的胸鰭。 在鰓蓋裡微暗的, 時常看得見的外部地。 嘴大的, 斜的, 下頜些微突出。 在頂端上頜有一對大的像犬齒一樣的齒。 下頜有一列空隙大的比較大的內部-列齒,逐漸地在後部地在大小方面增加。 沒有觸鬚或者孔的下巴,吻部有 2個邊緣的孔。 氣鰾有一對像觸角一樣的前肢。 背鰭有的柔軟部位在軟的鰭條 (參考文獻 51721) 之間的基底少數小鱗片列.

生物學特性     字彙 (例如 epibenthic)

Occurs usually over sandy bottoms in shallow coastal waters, being relatively abundant in the surf zone. During summer months the fish move to their nursery and feeding grounds in river estuaries.

在沿岸淺水區中通常生活在砂質底部之上, 相當很豐富在海浪區中。 魚在河口中移動到他們的育幼與覓食場在夏天數個月期間。

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

西大西洋: 美國的佛羅里達與墨西哥灣到坎佩切灣,墨西哥。

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

Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 14 February 2020

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: 商業性
FAO(Publication : search) | FishSource | 周邊海洋

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Estimates based on models

Preferred temperature (Ref. 115969): 23.4 - 27.1, mean 24.8 (based on 190 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00609 - 0.01719), b=3.06 (2.92 - 3.20), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  4.2   ±0.3 se; based on diet studies.
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (36 of 100).
價格種類 (Ref. 80766):   Medium.