第 1229 号，共 1 402 张

Channel catfish

Ictalurus punctatus

只是会疼不要触摸会疼，但不会对你造成严重伤害。

有毒的刺吃：什么都来一点

The channel catfish is a freshwater fish native to North America, and it is the continent's most common catfish. It lives in rivers, lakes, ponds and reservoirs, and it is a popular fish for anglers to catch and eat. It has spines on some of its fins that can cause a small injury if it is handled badly.1

生活在

Native to southern Canada, the eastern and northern United States and northern Mexico; widely introduced elsewhere1

北美洲

首页

It thrives in rivers, reservoirs, lakes and ponds, and it lives in murky water. Adults are often caught by anglers, and the species is also farmed (aquaculture) in the United States. Females lay eggs in crevices, hollows or debris to shelter them from fast currents.1

长度

30 cm (1 ft)1

体重

910 g到26 kg (2 lb到57 lb)1

最高速度

约 8.5 公里/小时（5.3 英里/小时）

游泳, 粗略估计

它吃什么？

Adults over 45 cm mainly prey on fish such as yellow perch and sunfish, and also eat snails, clams, crayfish, frogs, insects and plants. Young channel catfish eat a wide mix of plants and animals. They feed by opening the mouth quickly to pull in water and prey, then swallow prey whole.1

Channel catfish的照片 — Channel catfish。照片：Ryan Somma。 CC BY-SA 4.0, iNaturalist.

怎样认出它

Four pairs of barbels (whisker-like feelers) surround the mouth.1
Sharp spines sit on the pectoral (side) fins and the dorsal (back) fin.1
The pectoral spine has serrations (small saw-like ridges).1
It lives in muddy or dark water and finds food mainly by smell and taste.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？

The pectoral spine has poisonous tissues that help deter predators.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 may cause injury if the fish is handled improperly. A prick from a spine is no more dangerous than a mosquito sting.1

它害怕时会做什么？

It can lock its pectoral spine as a defence, and the serrated, poison-bearing spine helps to deter predators.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 6 只家猫一样重

和 9 块玩具积木排成一排一样长21 秒就能游完一个大泳池（50 米）

Channel catfish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？

一名奥运游泳选手 约 8 公里/小时 (5 mph)

Channel catfish 约 8.5 公里/小时 (5.3 mph)

一只全速游的海豚 约 35 公里/小时 (22 mph)

值得了解

事实

Taste buds cover the whole body, and they are most dense on the four pairs of barbels around the mouth.1

They can sense certain amino acids in water at about one part per 100 million, which helps them find food in murky water.1

The largest channel catfish on record weighed 26 kg and was caught in South Carolina in 1964.1

Channel catfish are the most fished catfish in the United States, with around 8 million anglers catching them each year.1

Fossils of this species have been found in central North America from the Miocene onwards, and the species has lasted for nearly 20 million years.1

Kansas, Missouri, Nebraska and Tennessee have made the channel catfish their official state fish.1

谣言粉碎机

谣言： Channel catfish barbels can sting when touched.

真相： The barbels cannot sting. The spines on the pectoral and dorsal fins are the only part that can cause injury.1

给毒液专家

学名: Ictalurus punctatus
类别: 有毒的鱼
家人: Ictaluridae2
排序: Siluriformes
大洲: 北美洲
宝宝: Channel catfish are cavity nesters that lay their eggs in crevices, hollows or debris, which protects them from swift currents.1
对人的危险: 2 / 5: 很疼3