第 1228 号，共 1 402 张

Brown bullhead

Ameiurus nebulosus

名字的由来： The scientific name Ameiurus nebulosus comes from Greek and Latin words that refer to its whiskery catfish body and cloudy, speckled look.1

只是会疼不要触摸会疼，但不会对你造成严重伤害。

有毒的鱼

有毒的刺吃：什么都来一点

对人的危险: 很疼可能真的很疼，但几乎从不严重。

The brown bullhead is a catfish with a sharp, venomous spine on its fins. It lives in lakes, ponds and slow streams across North America, and it is important to the Ojibwe people, who see it as one of their clan symbols.1

生活在

Native to eastern North America, from Nova Scotia to Alabama and across the Great Lakes and Mississippi basins; also stocked widely elsewhere in North America, Europe, Chile and New Zealand.1

北美洲

首页

It thrives in lakes, ponds and slow-moving streams, especially where the water is low in oxygen or muddy. It is a bottom-dwelling fish that feeds mostly at night.1

长度

20 cm到53 cm (7.9 in到1.7 ft)1

体重

500 g到3.6 kg (1.1 lb到7.9 lb)1

最高速度

约 6 公里/小时（3.7 英里/小时）

游泳, 粗略估计

它吃什么？

It is a bottom feeder that eats algae, leeches, worms, molluscs, crustaceans, insects, crayfish, smaller fish and fish eggs. It has poor eyesight and relies on its sensitive barbels to find food.1

Brown bullhead的照片 — Brown bullhead。照片：unknown。 CC BY-SA 2.5, Wikimedia Commons.

怎样认出它

Dark brown-green back that becomes lighter green and yellow towards the belly, which is off-white or cream1
Dark brown-black speckles over the whole body1
No scales1
Eight barbels (whisker-like feelers) around the mouth, with black to yellowish brown barbels on the chin1
Adults usually measure 20 to 50 cm and weigh 0.5 to 3.6 kg1

常被误认为： The black bullhead and yellow bullhead are similar. The brown bullhead has yellow-black chin barbels, no pale bar at the base of the tail (which the black bullhead has), and 21 to 24 rays in its anal fin. The flathead catfish lacks the brown bullhead's tooth patch on the upper jaw.1

毒液之力

有毒的刺

锋利的刺带着毒液。踩到或抓住它会很疼。

它的毒液会造成什么？

When attacked, the bullhead stiffens the sharp spine on the front edge of its dorsal and pectoral fins. While doing this, it releases venom that stings and burns the predator.1

它对人有多危险？

对人的危险: 很疼可能真的很疼，但几乎从不严重。

Its fin spines can sting and burn, which is its main defence against predators. Treat any caught fish with care and avoid handling its spines.1

它害怕时会做什么？

When attacked, it stiffens its fin spines to make it harder for a predator to swallow it, and releases venom to sting and burn.1

如果它的刺扎到你

把伤口泡在热水里，水温以不烫伤为限、尽量热（先用你自己的手试一试），泡 30 到 90 分钟。去看医生，尤其是被石头鱼和魟鱼伤到时。

一定先拨打你的急救电话（112、000、911）。这里是一般急救指导，不是医疗建议。急救基础

注意安全

永远不要摸、抓或逗弄野生动物，即使是很小的，即使它看起来在睡觉或已经死了。
给它留出空间。如果遇到它，保持冷静，慢慢后退，让它走自己的路。
如果它的刺扎到你：保持冷静，保持不动，拨打你的急救电话（112、000、911）或尽快去医院。记住它长什么样，拍张照片会有帮助。

它不是冲着你来的。它用毒液捕猎或保护自己，而且它更愿意躲起来。更多安全知识

在世界哪里？

非洲亚洲欧洲北美洲南美洲澳大利亚和大洋洲

它有多大？

它有多长？

它有多重？

和 30 根香蕉一样重

和 3 根香蕉首尾相接一样长和 17 块玩具积木排成一排一样长差不多和一只家猫一样重30 秒就能游完一个大泳池（50 米）

Brown bullhead和你比起来有多大？

只是在你的浏览器里算一算。什么都不会被保存或发送到任何地方。

它有多快？

一个在游泳的人 约 3 公里/小时 (1.9 mph)

Brown bullhead 约 6 公里/小时 (3.7 mph)

一名奥运游泳选手 约 8 公里/小时 (5 mph)

值得了解

事实

It can survive very low oxygen levels, down to 0.2 ppm, and even heavily polluted water.1

Its spines can produce venom, which is unusual for a catfish species that is otherwise common and widely eaten.1

The brown bullhead is one of six beings in Ojibwe tradition that came out of the sea to form the original clans.1

Both males and females are known to eat their own eggs at times.1

给毒液专家

学名: Ameiurus nebulosus
类别: 有毒的鱼
家人: Ictaluridae2
排序: Siluriformes
大洲: 北美洲
宝宝: The female lays eggs in dark places, such as under rocks or inside logs, and clusters can hold 50 to 10,000 eggs. The eggs usually hatch in six days, and parents look after the young for about five more days.1
寿命: 约 8 年1
它在野外过得怎么样: No special status under the IUCN, the US Endangered Species Program or CITES. It is a Species of Conservation Concern in Missouri.1
对人的危险: 2 / 5: 很疼3