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Weever

life science Maturity 5-7 Next article →

The weever is a fascinating fish found in our oceans.

WeeverFish
WeeverFish

There are nine living species in this fish family. Most of them live in the eastern Atlantic Ocean. This includes the Mediterranean Sea and the coast of Europe. One species lives far away in the southeast Pacific. Weevers are usually brown and can grow up to 37 cm long. They belong to a group called Trachinidae. They are part of the larger Percomorpha group of fish.

These fish have a very interesting way of living. During the day, they bury themselves in the sand. They hide their bodies and only show their eyes. This helps them wait for a snack to swim by. They like to eat small fish and shrimp. Most bony fish have a swim bladder to help them float. A swim bladder is like an internal balloon. Weevers do not have this part. Because of this, they sink if they stop swimming.

People have known about these fish for a long time. Scientists have named many different types over the years. For example, Cuvier named the lesser weever in 1829. He also named the spotted weever that same year. Linnaeus named the greater weever much earlier in 1758. Bleeker named the Guinean weever in 1861. Many of these names come from different researchers studying the sea. Even an extinct relative called Callipteryx once lived long ago.

Weevers have sharp spines on their gills and fins. These spines contain venom, which is a painful substance. The lesser weever often stays in shallow water. This means people might step on them while swimming. Most stings happen to the feet of bathers. Stings are more common in the summer months. In August, the number of stings usually reaches its highest point. In Swansea, about 40 stings are recorded every year.

If you are stung, the pain can be very strong. It may feel much worse than a bee sting. You might feel itching, swelling, or even nausea. To help, you can put the area in hot water. The heat helps break down the protein in the venom. You should keep the area in the water for 15 minutes. Most people feel much better within a few hours.

WeeverFish
WeeverFish

This simple step can make the pain fade quickly.

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