Stringers & Float Lines

[ihab]

I've come across this phrase...if someone could explain in details, that would be great.
--------------
If you are shore diving, do not attach speared fish to your weight belt but rather use a stringeron your float line. We have found that sometimes it helps to keep your fish in a sack or hang a spare gun on your float along with your stringer as this helps to discourage sharks from eating your catch.
http://www.sumora.com/sharks.php
---------------

I have no idea why & how to use a Float and/or a fish Stringer....so please provide as much details as possible...putting in consideration I do mainly shore diving.........thank you :thankyou

 

[Ronioc]

This is primarily for freediving spearfisherman. Float is any bright colored object that floats, and it serves dual purpose: to alert boaters that diver is in the water, and to allow you to attach your speargun to that float. By attaching speargun to your float you are able to let go of the gun after spearing the fish, and float will "fight" the fish and wear it out. To attach float to your gun use "floatline", which is any rope or tube that floats.

Here is how it looks:

Stringer is used to "string" the fish you catch, and you can hang it off the FLOAT so if shark comes it goes there and not after you (in case you have dead/bleeding fish on your belt.

 

[Trelos]

Arent those shark shields more effective?