Comments on: what are the similarities and differences in maintaining float between a shark and a osseous fish? http://osseoussurgery.net/what-are-the-similarities-and-differences-in-maintaining-float-between-a-shark-and-a-osseous-fish/ Learn About Osseous Surgery. Find Treatments & Surgery Options. We have the answers you seek. Mon, 19 Apr 2010 10:56:00 +0000 hourly 1 http://wordpress.org/?v=3.0.3 By: nobby http://osseoussurgery.net/what-are-the-similarities-and-differences-in-maintaining-float-between-a-shark-and-a-osseous-fish/comment-page-1/#comment-21 nobby Thu, 18 Feb 2010 05:02:46 +0000 http://osseoussurgery.net/what-are-the-similarities-and-differences-in-maintaining-float-between-a-shark-and-a-osseous-fish/#comment-21 Neutral buoyancy is the mechanism involved. osseous fish achieve this by their swim bladder which fills or empties over time to achieve neutral buoyancy at their prefered depth. Therefore if a fish is forcefully taken deeper/ or shallower it willneed time to empty fill its swim bladder, in the meantime it must use its fins and energy to maintan constant depth. A shark which does not have a swim bladder tends to use its fins and energy more to maintain depth. It is helped by having a very large oil rich liver which again can adjust buoyancy very slowly(not as quickly by far than the swim bladder of a fish). Neutral buoyancy is the mechanism involved.

osseous fish achieve this by their swim bladder which fills or empties over time to achieve neutral buoyancy at their prefered depth.
Therefore if a fish is forcefully taken deeper/ or shallower it willneed time to empty fill its swim bladder, in the meantime it must use its fins and energy to maintan constant depth.

A shark which does not have a swim bladder tends to use its fins and energy more to maintain depth. It is helped by having a very large oil rich liver which again can adjust buoyancy very slowly(not as quickly by far than the swim bladder of a fish).

]]> By: lightening rod http://osseoussurgery.net/what-are-the-similarities-and-differences-in-maintaining-float-between-a-shark-and-a-osseous-fish/comment-page-1/#comment-20 lightening rod Thu, 18 Feb 2010 04:52:29 +0000 http://osseoussurgery.net/what-are-the-similarities-and-differences-in-maintaining-float-between-a-shark-and-a-osseous-fish/#comment-20 A shark has to be swimming to stay off the bottom--if they stop swimming they sink. The osseous fish have a swim bladder filled with air that help them float at a certain depth whether they are moving their fins or not. A shark has to be swimming to stay off the bottom–if they stop swimming they sink. The osseous fish have a swim bladder filled with air that help them float at a certain depth whether they are moving their fins or not.

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