鲅鱼 bà yú

鲅鱼，（学名：Scomberomorus niphonius）是鲭科、鲅鱼下的一种鱼类。体延长，侧扁，尾柄细，两侧在尾鳍基各具3隆起嵴；体高小于头长；吻尖长；口大，上下颌约等长；上下颌各具强牙一行，侧扁，三角形，14-20枚，排列稀疏；腭骨及锄骨亦具齿，舌上无齿；体被细圆鳞，侧线鳞较大，明显，腹侧大部分裸露无鳞；；臀鳍与第二背鳍同形；尾鳍深叉形；体背侧蓝黑色，腹部银灰色；沿体侧中央具数列黑色圆形斑点。

暖温性中上层鱼类，分布水深与季节和个体大小有关，稚幼鱼分布表层，随着生长，渐趋中层；夏季分布中上层，冬季则栖息中下层；有洄游习性，行动敏捷，性凶猛，肉食性，捕食结群性小型鱼虾类和甲壳类；广泛分布于太平洋西北部的日本诸岛海域、朝鲜半岛南端群山至釜山外海和中国渤海、黄海、东海等海域。

百度翻译提供：

Blue spotted mackerel (scientific name: Scomberomorus Niphonius) is a kind of fish under mackerel family and Spanish mackerel. The body is elongated, the side is flat, the caudal stalk is thin, and there are 3 ridges at the base of caudal fin on both sides; The body height is less than the head length; Snout tip long; The mouth is large, and the upper and lower jaw are about the same length; Each upper and lower jaw has a row of strong teeth, lateral flat, triangular, 14-20, arranged sparsely; Palatal bone and hoe bone also have teeth, and there are no teeth on the tongue; The body is covered with fine round scales, the lateral line scales are large and obvious, and most of the ventral side is bare without scales;; The gluteal fin is the same shape as the second dorsal fin; Caudal fin deep forked; The dorsal side of the body is blue black, and the abdomen is silver gray; There are several rows of black circular spots along the center of the body side.