Cynoscion steindachneri, Smalltooth weakfish : fisheries, aquaculture

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Cynoscion steindachneri (Jordan, 1889)

Smalltooth weakfish
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Cynoscion steindachneri   AquaMaps   Data sources: GBIF OBIS
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Image of Cynoscion steindachneri (Smalltooth weakfish)
Cynoscion steindachneri
Picture by Krumme, U.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

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

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋; 淡水; 半咸淡水 居于水底的; 深度上下限 1 - 10 m (Ref. 3702). ; 11°N - 9°S, 46°W - 62°W

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

Western Atlantic: Guyana to northern Brazil.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 110 cm TL 雄鱼/尚未辨别雌雄; (Ref. 9626); common length : 45.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3702)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 11; 背的软条 (总数): 21-24; 臀棘 2; 臀鳍软条: 10 - 12. Colour greyish above, whitish below. Dorsal fin dusky, upper margin of pectoral fins orange, pelvic fins and anal fin pale, caudal fin grey with a dark margin. Inside of mouth orange. Mouth large, distinctly oblique, lower jaw projecting. Tip of upper jaw without enlarged canines. Chin without barbels or pores. Snout with only 2 marginal pores. Pectoral fins much shorter than pelvic fins. Gas bladder with a pair of medium-sized, nearly straight, horn-like anterior appendages. Soft portion of dorsal fin almost entirely covered with small scales (Ref 51721).

生物学特性     字汇 (例如 epibenthic)

Mostly in brackish water swamps along the coasts; also entering freshwaters (Ref. 3702). Feeds on fish, shrimps and sometimes plants (Ref. 35237). Spawning takes place in the open sea. Important food fish (Ref. 3702).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼


主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Cervigón, F., 1993. Los peces marinos de Venezuela. Volume 2. Fundación Científica Los Roques, Caracas,Venezuela. 497 p. (Ref. 9626)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 16 October 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 





人类利用

渔业: 商业性; 养殖: 实验的
FAO - Publication: search | FishSource | 周边海洋

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孕卵数

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Otoliths
脑重体重比
眼睛色素

工具

特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录

Estimates based on models

Preferred temperature (Ref. 123201): 26.7 - 28.4, mean 27.7 °C (based on 103 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00391 - 0.01767), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.3   ±0.53 se; based on food items.
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100).
价格分类 (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 79.6 [48.9, 162.6] mg/100g; Iron = 0.858 [0.433, 1.558] mg/100g; Protein = 18.4 [16.8, 20.1] %; Omega3 = 0.159 [0.082, 0.271] g/100g; Selenium = 44.7 [24.9, 91.1] μg/100g; VitaminA = 12.5 [4.7, 33.4] μg/100g; Zinc = 1.17 [0.84, 1.68] mg/100g (wet weight);