ampullae of lorenzini and aluminum
- Thread starter serafino
- Start date
Living in the wild and living in an enclosure are much different. Aquariums in the past before we new what we know now about sharks had many of their sharks die because they would go crazy and jump out of the water and other strange behaviors. When we found out metal did this the metal was either completely removed or used deeper in the walls of the exhibit. After that the sharks did well and calmed down so its pretty safe to assume that metal drives them crazy in a tank also we know about the ampullae of lorenzini and those detect weak electrical fields and since metal containing iron has one it screws with their most sensitive sense.
Actually it's active electrical fields that tend to affect sharks more than Metal.
The Ship wreck example - is a keep example.
Metal generally affects sharks - if it has electricity running thru. As your remember from your high school science classes - most metals tend to be good conductors of electricity. And there in lays the heart of the problem.
Also some species of sharks are very sensitive to even very tiny changes in electrical fields. While other species appear to be less sensitive.
The Ship wreck example - is a keep example.
Metal generally affects sharks - if it has electricity running thru. As your remember from your high school science classes - most metals tend to be good conductors of electricity. And there in lays the heart of the problem.
Also some species of sharks are very sensitive to even very tiny changes in electrical fields. While other species appear to be less sensitive.
The thing I was saying earlier is that metal has tiny magnets inside of it. Which is a constant magnetic field so it is an active field. Unless by active you mean changing? Or are we arguing the same point?
By active - I mean has electricity passing thru it. Not weak magnetic fields produced by the metal.
Weak magnetic fields really don't give sharks a problem. Although it's possible that some species may use the Earth's Magnetic Field to help navigate the oceans - or maybe basic directions(North, South, East, & West).
Weak magnetic fields really don't give sharks a problem. Although it's possible that some species may use the Earth's Magnetic Field to help navigate the oceans - or maybe basic directions(North, South, East, & West).
Explain why some public aquariums have had problems when using metal near sharks? I'm curious if they are affected or can live with it.
serafino;1615036; said:
Why? - because Metal is a good conductor(generally) of electricity. So if you have metal in the tank(in the water), and even a small amount of electricity touching the piece of metal. Then you will have a small electrical current in the tank. And some sharks are very sensitive to even small electrical fields. So it will cause problems for these species.
@Zoodiver-None have had recent problems with it. It was way way back when sharks were first being held in aquariums.
@krj-118- So still no metal.
@krj-118- So still no metal.
Ah, the main reason was that they were doing two things wrong "way back"....
1) They had the metal rebar too close to the inner wall of the tank exterior. Thicker concrete solved that.
2) A lot of the pumps used to run the filters used to be located close to the tank itself. The electrical systems used to run those where being conducted by the rebar, so it was entering the water a lot more than what happens these days.
1) They had the metal rebar too close to the inner wall of the tank exterior. Thicker concrete solved that.
2) A lot of the pumps used to run the filters used to be located close to the tank itself. The electrical systems used to run those where being conducted by the rebar, so it was entering the water a lot more than what happens these days.
