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Cynoscion arenarius Ginsburg, 1930

Sand weakfish
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Native range | All suitable habitat | Point map | Year 2050
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Cynoscion arenarius   AquaMaps   Data sources: GBIF OBIS
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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

分类 / Names 俗名 | 同种异名 | 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 生态学

海洋; 半咸淡水 居于水底的.   亞熱帶的; 30°N - 18°N, 98°W - 80°W

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | 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 / 年龄

Maturity: Lm 14.0  range ? - ? cm
Max length : 63.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 40637); common length : 35.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3702); 最大体重: 2.8 kg (Ref. 40637); 最大年龄: 5 年 (Ref. 58079)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 9 - 11; 背的软条 (总数) : 25 - 29; 臀棘: 2; 臀鳍软条: 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).
颜色均匀的银灰色的上方, 没有显著的斑点, 下面银色的。 腹鳍与臀鳍灰白的到淡黄色的。 在基底的一个模糊的深色区域与轴的胸鳍。 在鳃盖里微暗的, 时常看得见的外部地。 嘴大的, 斜的, 下颌些微突出。 在顶端上颌有一对大的像犬齿一样的齿。 下颌有一列空隙大的比较大的内部-列齿,逐渐地在后部地在大小方面增加。 没有触须或者孔的下巴,吻部有 2个边缘的孔。 气鳔有一对像触角一样的前肢。 背鳍有的柔软部位在软的鳍条 (参考文献 51721) 之间的基底少数小鳞片列.

生物学特性     字汇 (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.

在沿岸浅水区中通常生活在砂质底部之上, 相当很丰富在海浪区中。 鱼在河口中移动到他们的育幼与觅食场在夏天数个月期间。

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

西大西洋: 美國的佛羅里達與墨西哥灣到坎佩切灣,墨西哥。

主要参考文献 Upload your references | 参考文献 | 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)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 14 February 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

渔业: 商业性
FAO(Publication : search) | FishSource | 周边海洋

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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).
营养阶层 (Ref. 69278):  4.2   ±0.3 se; based on diet studies.
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (36 of 100).
价格分类 (Ref. 80766):   Medium.