推荐回答(4个)
狗鱼和黑鱼不是同一种鱼。
【狗鱼【属鲑形目,狗鱼科,狗鱼属。即黑斑狗鱼。俗称:狗鱼,鸭鱼。英文名:Pikes , Amur pikc 。狗鱼是在北半球寒带到温带里广为分布的淡水鱼。口像鸭嘴大而扁平,下颌突出。是淡水鱼中生性最粗暴的肉食鱼,除了袭击别的鱼外,还会袭击蛙、鼠或野鸭等。据说一天可以吃和自己体重相当的食物。因为寿命长,偶尔可发现巨大型的个体。因肉味极佳,成为钓鱼的好对象。
狗鱼是鲑形目狗鱼亚目狗鱼科的唯一属。共5种,2亚种;中国有2种,即黑斑狗鱼和白斑狗鱼。体细长,稍侧扁;口裂极宽大,约为头长的一半;齿发达;背鳍及臀鳍位靠后并相对;体侧有斑。狗鱼生长快,肉质细嫩洁白,味道鲜美,是很好的食用经济鱼类。但因狗鱼为肉食性,贪食而食量大,对其他经济鱼类有很大的危害。
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【黑鱼】是乌鳢的俗称,又名乌鱼、生鱼、财鱼、蛇鱼、火头鱼等。
黑鱼生性凶猛,繁殖力强,胃口奇大,常能吃掉某个湖泊或池塘里的其他所有鱼类。黑鱼还能在陆地上滑行,迁移到其他水域寻找食物,可以离水生活3天之久。早在二千年前就被《神农本草经》与石蜜、蜂子、蜜蜡(蜂胶)、牡蛎、龟甲、桑蜱蛸、海蛤、文蛤、鲤鱼等列为虫鱼上品。
黑鱼在中国是一种常见的食用鱼,个体大、生长快、经济价值高。黑鱼骨刺少,含肉率高,而且营养丰富,比鸡肉、牛肉所含的蛋白质高。黑鱼作为药用具有去瘀生新,滋补调养等功效,外科手术后,食用黑鱼具有生肌补血,促进伤口愈合的作用,具有非常丰富的营养价值。
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狗鱼(Esox reicherti)属鲑形目,狗鱼科,狗鱼属。即黑斑狗鱼。俗称:狗鱼,鸭鱼。英文名:Pikes , Amur pikc 。
狗鱼体细长,稍侧扁,尾柄短小。头尖,吻部特别长而扁平,似鸭嘴。口裂极宽大,口角向后延长可达头长的一半。齿发达,上下颌、犁骨、筛骨和舌上均具有大小不一致的锥形锐齿。它的牙齿与众不同,上颚齿可以伸出来并有韧带连着,这种锋利的牙齿可以把捕捉到的动物挂住,有时也把吃不完的食物挂在牙齿上,留着备用。鳞细小,侧线不明显。背鳍位置较后,接近尾鳍,与臀鳍相对,胸鳍和腹鳍较小。背部和体侧灰绿色或绿褐色,散布着许多黑色斑点,腹部灰白色,背鳍、臀鳍、尾鳍也有许多小黑斑点,其余为灰白色。
狗鱼性情凶猛残忍,行动异常迅速、敏捷,每小时能游8公里以上。狗鱼不但异常凶猛,而且诡计多端。这与它的侧线构造有关。狗鱼的侧线实际上为一列具有纵沟纹的鳞片。它不仅可以起着普通侧线的震动感受点的作用,还能起到化学感受点的作用。同时,狗鱼还有着极为灵敏的视觉,这样就使得狗鱼能非常迅速地感受到猎物的来临。平时多生活于较寒冷地带的缓流的河汊和湖泊、水库中,喜游弋于宽阔的水面,也经常出没于水草丛生的沿岸地带,以其矫健的行动袭击其它鱼类。幼鱼性情温顺常成群生活,成鱼则单独栖息。有着明显的洄游规律,春季解冻后游向上游河口沿岸区域或进入小河口、泡沼产卵,产卵结束后分散肥育,冬季进入大河深水处越冬。狗鱼以鱼类为食,食量大,冬季仍继续强烈索食,尤以生殖后食欲更旺。通常在清晨或傍晚猎取食物,其它时间则不再游动,而是静下来休息,并慢慢地消化所吞食的食物。狗鱼捕食时异常狡猾。每当狗鱼看到小动物游过来时会耍花招用肥厚的尾鳍使劲将水搅浑,把自己隐藏起来,一动不动地窥视着游过来的小动物,达到一定距离就突然一口将其咬住,接着三下五除二将小动物吃掉一大半,剩余的部分挂在牙齿上,留待下次再吃。繁殖季节停止摄食,一般3-4冬龄鱼达到性成熟,生殖期为4-6月初,水温为3-6℃,在水深为0.5-1.0米而有水草场所产卵,产卵高峰为1周。在生殖季节,当静静的水面涌起波浪,这象征着雌狗鱼的到来。雌狗鱼比雄狗鱼凶残得多,如果不是在生殖阶段,雄鱼是不敢靠近雌鱼。此时雌鱼游得很快,而且没有规律,猛游后进入杂草丛生的地方,一动不动,等待着雄鱼的到来。接着雄鱼小心翼翼地游向雌鱼。此时雌鱼将看不顺眼的雄鱼赶走,留下来的雄鱼将雌鱼包围起来,雌狗鱼极度兴奋地在前面游动,雄狗鱼在后面追逐。这时雄鱼会不断地在一起盘恒、搏斗、撕杀,然后又去追赶游远了的雌鱼。雌狗鱼开始疲乏时,就停留在草丛中,开始不停地翻转,并不断地增加翻转的速度。此时雄鱼靠近雌鱼,随其翻滚,有时还会跳起来,并用身体顶撞雌鱼。过了大约15分钟,雄鱼开始排精,紧接着雌鱼也排卵,当雌鱼产卵快完时,一尾尾雄鱼慌忙逃离,以免被雌鱼咬伤。尽管雌鱼已相当疲乏,但仍然显示出它们的贪婪和凶残,并开始吃起自己产下的卵和逃避不及的雄鱼。狗鱼生长快,寿命长,有人发现有重达30-35公斤、年龄为70龄的个体,传说最长寿命可达200岁以上。
狗鱼分布于黑龙江流域。此外,新疆额尔齐斯河流域生活着另一种白斑狗鱼(E.lucius),其区别在于体侧斑点是淡蓝白色斑。
狗鱼在产区的天然产量很大,肉质细嫩洁白,除稍带草泥味外,实不亚于鲤、鲫或大麻哈鱼。狗鱼的卵有毒,不宜食用。
不是,差很多。
狗鱼,又称黑龙江狗鱼,狗鱼,鸭鱼,鸭子鱼,河狗。隶属于鲑形目,狗鱼亚目,狗鱼科,狗鱼属,如图:http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&word=%B9%B7%D3%E3&in=3&cl=2&cm=1&sc=0&lm=-1&pn=2&rn=1
黑鱼,又称乌鳢,才鱼,乌鱼,乌棒,蛇头鱼,生鱼。隶属于鲈形目,攀鲈亚目,鳢科,鳢属。如图:http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&word=%BA%DA%D3%E3&in=22&cl=2&cm=1&sc=0&lm=-1&pn=21&rn=1
不一样的,狗鱼是狗鱼,狗鱼属;黑鱼又叫老虎鱼,学名乌鳢,鱼纲,鲤科。
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