The Brief The so-called ‘Fish Doorbell’ is a livestream based in the Netherlands. How does the ‘Fish Doorbell’ help? Those fish can get held up, however, by a river lock – and that's where the Fish Doorbell is installed. What they're saying:"It's really fascinating," Anna Nijs, an ecologist and co-founder of the Fish Doorbell project, told the Associated Press. Follow FOX 13 on YouTubeWhat you can do:To watch the Fish Doorbell livestream, click here.