Pepere Posted October 18, 2022 Share Posted October 18, 2022 I have never considered it before. one of my fish species has a fairly translucent body where you can easily make out an air filled chamber between the digestive tract and the spinal cord. This piqued my curiosity and led me to read up on the Swim bladder and how it works. I am betting many veteran fish keepers know this, but it might be interesting to people like me, who had no idea… A neutral buoyancy regulator controlled by smooth muscle that contracts and relaxes to allow chamber volume to increase or decrease and affect attitude in water, nose up or down independent of fin activity. They fill the chambers as needed by transport of dissolved oxygen obtained from the water column by their gills… Functions similarly to ballast tanks on submarines. Kind of amazing stuff. Learning new things daily at 56 going on 57. This has provoked me to look in to the anatomy and physiology of fish a bit more… 2 Link to comment Share on other sites More sharing options...
TheSwissAquarist Posted October 18, 2022 Share Posted October 18, 2022 On 10/18/2022 at 2:15 PM, Pepere said: I have never considered it before. one of my fish species has a fairly translucent body where you can easily make out an air filled chamber between the digestive tract and the spinal cord. This piqued my curiosity and led me to read up on the Swim bladder and how it works. I am betting many veteran fish keepers know this, but it might be interesting to people like me, who had no idea… A neutral buoyancy regulator controlled by smooth muscle that contracts and relaxes to allow chamber volume to increase or decrease and affect attitude in water, nose up or down independent of fin activity. They fill the chambers as needed by transport of dissolved oxygen obtained from the water column by their gills… Functions similarly to ballast tanks on submarines. Kind of amazing stuff. Learning new things daily at 56 going on 57. This has provoked me to look in to the anatomy and physiology of fish a bit more… I agree, it is quite fun to see the inside of fish (without cutting them open 🙃). I love watching my Macrobrachium shrimp. Link to comment Share on other sites More sharing options...
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