Dec 19, 2017 · Heather - So we don’t really know whether fish yawn or not. But, coincidentally… Ian - There is a fish called a Yawning (Poromitra oscitans). It’s a member of the family called the ridgehead fish - deep water fish of the tropical indo pacific zone, and it’s a bit of an ugly brute. Heather - Thanks Ian.

Dec 18, 2017 · Heather - So we don’t really know whether fish yawn or not. But, coincidentally… Ian - There is a fish called a Yawning (Poromitra oscitans). It’s a member of the family called the ridgehead fish - deep water fish of the tropical indo pacific zone, and it’s a bit of an ugly brute. Heather - Thanks Ian.

Oct 22, 2007 · Yawning in fish does the same thing that it does in humans. It forces more air/oxygen into their systems. While it would do it in a different way in fish it is still how they do it. It does force oxygenated water over the gills and thus makes more oxygen enter the system by dousing the gills with the water faster than normal.

Feb 6, 2006 · Usually, fish yawning occurs as a display of territoriality or to attract females. If your fish is yawning at nothing, it's for the same reason people yawn...an abundance of CO2. If your fish are yawning all the time, do a water change and boost aeration in the tank.

Oct 16, 2006 · Saltwater barracuda yawn to stretch their jaw muscles. Ugly, stupid fish those things are. Brandon Have you been scared for life over finding nemo? :ROFL: I had to yawn 3 or 4 times while reading this. Damn power of suggestion

Mar 8, 2007 · In fish, yawning, if anything, should result in less oxygen being taken in through the gill filaments. Even though the mouth is opened, the hypid apparatus depressed and the opercles flared (resulting in a larger volume of water prescrit in the oral cavity) all pumping action of water over the gills ceases.

Jun 5, 2016 · So my betta, Niko, is a sleepy little thing from about noon to 4:00. I don't know why, but I always see him napping or resting during this time period. Anyways, I went over to check on him, and he was sleeping on his leaf hammock. I started to turn away, but I guess he noticed me, because he got...

Oct 30, 2009 · Why do fish yawn? Last night I was lying on the couch watching my tank and I noticed that almost all my fish yawned one after the other. This was about an hour after I fed them so I started to wonder whether feeding them has anything to …

Dec 25, 2006 · Do fish yawn? Because nowadays I see my fish opening their mouth really wide into an O shape and it looks like its yawning lol.

Dec 12, 2008 · Wondering if anyone has seen their fish yawn and if there is any significance to it? I change water regularly,. oxygen is not an issue,..is this normal behavior or am i missing something?