Teleostei >
Eupercaria/misc (Various families in series Eupercaria) >
Gerreidae (Mojarras)
Etymology: Eucinostomus: Greek, eu = good + Greek, kyon = dog + Greek, stoma = mouth (Ref. 45335).
More on author: Bleeker.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
海洋; 淡水; 半咸淡水 居于水底的; 非产卵性溯降河的 (Ref. 51243); 深度上下限 0 - 25 m (Ref. 2683). 亞熱帶的; 33°N - 34°S, 98°W - 14°E
Eastern Atlantic: west African coast, from Senegal to Angola (Ref. 57394). Also reported from Mauritania (Ref. 5377, 7352). Western Atlantic: Bermuda and Florida, USA to Brazil; not found in the Bahamas (Ref. 7251).
東大西洋: 茅利塔尼亞到安哥拉。 西大西洋: 百慕達群島與美國佛羅里達到巴西; 不出現在巴哈馬。 (參考文獻 7251)
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 30.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2683); common length : 23.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2683); 最大体重: 26.50 g (Ref. 118626)
背棘 (总数) : 9; 背的软条 (总数) : 10; 臀棘: 3; 臀鳍软条: 7 - 8. Diagnosis: body fusiform and compressed; snout pointed; mouth strongly protrusible; nostrils contiguous, positioned nearer to eye than to snout tip; dorsal fin deeply notched; tips of pectoral fins not reaching to anal-fin origin; scales cycloid on head and finely ctenoid on body; scales of interocular space reaching anterior border of eyes; tip of spinous dorsal fin with a black spot, underlined by a whitish band (Ref. 57394).
Coloration: back olivaceous, sides silvery; a characteristic black spot at tip of spiny part of dorsal fin; young individuals may show dark vertical bars on back and sides (Ref. 57394).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
A coastal species entering estuaries, lower courses of coastal rivers, and lagoons (Ref. 4323, 7352, 57394). Found over sand or mud bottoms (Ref. 3722, 57394). Feeds on fish, shrimps, mollusks, zooplankton and detritus (Ref. 28587); including other benthic crustaceans and polychaetes. Forages at daytime in small groups, hovering close to the bottom and either picks off prey on the substrate or digs into it sifting the mouthed sediment through its opercular openings. Its conspicuous black tip on dorsal fin is mimicked by juvenile guianan snooks, Centropomus mexicanus, an example of aggressive mimicry (Ref. 43465). Marketed fresh but not highly esteemed (Ref. 3722).
一个沿岸鱼种进入河口，沿海的河川与泻湖.(参考文献 7352,4323) 发现在沙或泥底部上了。 (参考文献 3722) 吃鱼，虾，软件动物，浮游动物与碎屑;(参考文献 28587) 包括其他的底栖甲壳动物与多毛类动物。 在白天觅食形成小群鱼群, 盘旋接近底部与或剔啄外海的捕食底部或者深入经过它的鳃盖开口筛撒嘴巴沉淀物的它。 在背鳍上的它的显着黑色的顶端被幼年的 guianan 土 鱼， 墨西哥锯盖鱼［Centropomus mexicanus］ ，一个侵略性拟态的例子拟态。 (参考文献 43465) 在市场上销售生鲜地了但是不是深受喜爱.(参考文献 3722)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
東大西洋: 茅利塔尼亞到安哥拉。 西大西洋: 百慕達群島與美國佛羅里達到巴西; 不出現在巴哈馬。 (參考文獻 7251)
Roux, C., 1990. Gerridae. p. 781-782. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 7352)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 低经济
工具
特别资料
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网络资源
基于模型的估算
首选温度 (参考文献
123201): 23.4 - 28, mean 27.1 °C (based on 1079 cells).
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00834 - 0.01315), b=3.07 (3.03 - 3.11), in cm total length, based on LWR estimates for this species (Ref.
93245).
营养阶层 (参考文献
69278): 3.2 ±0.45 se; based on food items.
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Low vulnerability (20 of 100).
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营养素 (Ref.
124155): Calcium = 117 [60, 236] mg/100g; Iron = 1.11 [0.58, 2.04] mg/100g; Protein = 19.5 [17.6, 21.3] %; Omega3 = 0.365 [0.198, 0.650] g/100g; Selenium = 18.3 [9.5, 36.3] μg/100g; VitaminA = 11.8 [3.7, 32.6] μg/100g; Zinc = 1.01 [0.70, 1.44] mg/100g (wet weight);
