Related recent video from Practical Engineering on Fish Ladders: How do fish ladders work? I wonder why locks don't have something similar to help the migratory fish get past them, without needing...
In this case, I'm betting because the amount of effort and cost required to install a fish ladder is much higher than an IP camera with a website button that alerts the already-paid-for lock...
In this case, I'm betting because the amount of effort and cost required to install a fish ladder is much higher than an IP camera with a website button that alerts the already-paid-for lock operator when there's sufficient fish.
Yeah, cost is probably a major issue. And now that I think about it, the migration season is only during the spring (according to the site), so the monitoring doesn't even need to be a year round...
Yeah, cost is probably a major issue. And now that I think about it, the migration season is only during the spring (according to the site), so the monitoring doesn't even need to be a year round thing either. And a fish ladder would likely be a huge waste of resources compared to that, since it would only get used for short window of time, and then sit unused the rest of the year.
I'm sure there's some differences in what works due to terrain and such but when they had regularly scheduled lock openings for the fish, the predators upstream got smart and waited for snack...
I'm sure there's some differences in what works due to terrain and such but when they had regularly scheduled lock openings for the fish, the predators upstream got smart and waited for snack time. It might just not work to add a ladder-like path for this particular lock.
Hah, that's really interesting, and another thing I hadn't considered! Do you have any more info on that, by chance? I can't find anything about it on the site. The only mention of predators that...
Hah, that's really interesting, and another thing I hadn't considered! Do you have any more info on that, by chance? I can't find anything about it on the site. The only mention of predators that I could find is in the about page, talking about how the fish prefer to swim at night to avoid them.
Did you know that fish prefer to swim in the dark when travelling from one place to the next? It is safer than during the day, as there are fewer birds and other predators about. Make sure to check out the live stream when it is dark outside, as that is when you are most likely to spot fish.
It was a video I think but I (or the video) may have gotten it backwards. From their about page and the news articles it looks like it's staying on the downstream side of the lock that exposed the...
It was a video I think but I (or the video) may have gotten it backwards. From their about page and the news articles it looks like it's staying on the downstream side of the lock that exposed the fish to predators. They couldn't keep swimming and the birds in particular got smart.
The fish doorbell allows us to work together to ensure that fish do not have to wait as long at the Weerdsluis lock. This is good news, because it means they are less likely to be eaten by other animals, such as grebes and cormorants.
I did watch a couple of their weekly fish videos too so it's possible it was both things, but I can only document my corrected version!
Related recent video from Practical Engineering on Fish Ladders:
How do fish ladders work?
I wonder why locks don't have something similar to help the migratory fish get past them, without needing manual monitoring and input like this.
In this case, I'm betting because the amount of effort and cost required to install a fish ladder is much higher than an IP camera with a website button that alerts the already-paid-for lock operator when there's sufficient fish.
Yeah, cost is probably a major issue. And now that I think about it, the migration season is only during the spring (according to the site), so the monitoring doesn't even need to be a year round thing either. And a fish ladder would likely be a huge waste of resources compared to that, since it would only get used for short window of time, and then sit unused the rest of the year.
I'm sure there's some differences in what works due to terrain and such but when they had regularly scheduled lock openings for the fish, the predators upstream got smart and waited for snack time. It might just not work to add a ladder-like path for this particular lock.
Hah, that's really interesting, and another thing I hadn't considered! Do you have any more info on that, by chance? I can't find anything about it on the site. The only mention of predators that I could find is in the about page, talking about how the fish prefer to swim at night to avoid them.
It was a video I think but I (or the video) may have gotten it backwards. From their about page and the news articles it looks like it's staying on the downstream side of the lock that exposed the fish to predators. They couldn't keep swimming and the birds in particular got smart.
I did watch a couple of their weekly fish videos too so it's possible it was both things, but I can only document my corrected version!
That's still interesting, nonetheless. Thanks for sharing the correction! :)
Oh my, the live stream is capped at 1000 people. Let's take turns people. :)
Here's a quick Youtube vid of an older stream
By that you mean endlessly spam F5 until I get to see the fish of course!
You can see the fish on a live stream still on youtube usually, you just can't ring the doorbell :D
Very cool