Quote:
Originally Posted by bulletbob
Maybe someone can answer a question for me on this topic.. I too have seen way too many dying fish float away, feebly trying to right themselves after being cranked up from deep water.. Any device that cuts this down a lot is worthwhile.. However, I don't see this problem near as much in freshwater .. We catch lake trout while jigging as deep as 200 FOW, and the fish always swim back strong.. I have even caught perch and sunfish at 85 FOW in summer and they swam back strong... Hadn't really thought about why that may be, but this thread got me thinking about it... Even at 75 feet I have seen a lot of salt water fish go belly up on the surface unable to swim back down, but never saw it as yet in a fresh water fish caught from deep water.. Anyone know?... bob
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Freshwater fish generally don't get the bends because they don't breathe compressed air like humans do when diving, meaning they don't absorb large amounts of nitrogen into their bodies at depth, which is the primary cause of decompression sickness ("the bends") when surfacing rapidly; whereas some deep-sea saltwater fish can experience issues with their swim bladders due to pressure changes, which can be similar to the bends but arises from a different mechanism related to gas volume regulation within their bodies.
Or what Dan just posted.
