Did you spot a fish? Press the Fish Doorbell!

Then our lock keeper can let the fish through. Nothing to see? Watch the Fish Doorbell News Report and spot last week’s fish!

Press the Fish Doorbell
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Thanks for ringing the Fish Doorbell!

Spotted a fish? Check the fish below:

⚠️ Are you sure you spotted a fish? Our algorithm detects an (almost) empty photo.

We understand that you want to press the Fish Doorbell, but uploading empty photos burdens our servers and slows down the website.

If you do see a fish in the photo, you can still upload it:

Thanks! The fish are happy, and maybe your photo will become the fish photo of the week.

Curious to see which other fish have been spotted?

Fish Doorbell news report

Week 1 – What is fish migration?

Fish photo of the week

Tuesday 11 March, 5:47pm

Tuesday 11 March, 4:52pm

Tuesday 11 March, 11:04am

Fish in this photo:

Freshwater Bream, Rudd

More Fish Doorbell News and stories from fans?

Check the fish updates

Have you spotted these fish?

Here, you can keep track of the species you’ve already seen.

Read why we help the fish

The World’s First Fish Doorbell

Every spring, thousands of fish swim through the Oudegracht in Utrecht, searching for a place upstream to lay their eggs. But the Weerdsluis is often closed. You can help the fish continue their journey! If you see a fish, press the doorbell. This alerts the lock operator to open the lock.

Want to learn more about the Fish Doorbell, how it all started, and who is involved?

Learn more about the Fish Doorbell

Just missed a fish?

3 tips for spotting fish

Look in the morning or evening

Most fish are active at dawn or dusk.

Choose the right time of year

The first fish appear in March, but the migration really picks up from early April.

Spot the special species

Eel and zander are mostly spotted at night (if you’re lucky!).

Blub!

Want to learn more about fish and underwater nature? Check out our Fish Doorbell lessons, specially designed for grades 5 to 8

More info and education about the fish