sheree
Fish Fanatic
I've noticed my silver sharks sometimes yawn and the ghost carp and koi in the pond outside do it also??
Why Do Fish Yawn?
- Thread starter sheree
- Start date
Nina
Fish Crazy
Sorry Wilder I have never heard that before.
I have 8 Silver Sharks and they "yawn". If they are breathing fast then that may be a sign of bad water quality.
I have 8 Silver Sharks and they "yawn". If they are breathing fast then that may be a sign of bad water quality.
It's normal for them to yawn, but they can yawn if nitrates are high.
Yawning is normal for almost all fresh water fish. The are actually back flushing their gills to clear particles our of their gills. So don't be concerned about your fish yawning.
Yawning is normal for almost all fresh water fish. The are actually back flushing their gills to clear particles our of their gills. So don't be concerned about your fish yawning.
andywg
Bored into leaving
There is no conclusive knowledge of this. It is believed it could be anything to do with depleted oxygen to territorial behaviour.
It is unlikely to be oxygen related as fish do not breath through their mouths, so the yawning would not accomplish anything. I also fail to see how high nitrates would cause a fish to yawn. I have had nitrates up in the 90s (just shy of the 100ppm when it starts to affect some fish) and noticed no increase in the yawning.
Do you have any scientific sources to back up the nitrates claim wilder?
It is unlikely to be oxygen related as fish do not breath through their mouths, so the yawning would not accomplish anything. I also fail to see how high nitrates would cause a fish to yawn. I have had nitrates up in the 90s (just shy of the 100ppm when it starts to affect some fish) and noticed no increase in the yawning.
Do you have any scientific sources to back up the nitrates claim wilder?
Somewhere take me ages to find it.
Seen it on other sites too about nitrates.
http
/www.wheelchairanglingandhamradio.co.uk/tropfish.htm
Taken from the link.
Another sign that your nitrates may be too high is if you see your Oscar yawning a lot. This may not always be the case because Oscars also do it to stretch their muscles. Just be aware if you see your oscar doing this a lot
Seen it on other sites too about nitrates.
http
/www.wheelchairanglingandhamradio.co.uk/tropfish.htmTaken from the link.
Another sign that your nitrates may be too high is if you see your Oscar yawning a lot. This may not always be the case because Oscars also do it to stretch their muscles. Just be aware if you see your oscar doing this a lot
andywg
Bored into leaving
Done a quick search, and it appears that Rasa did some research into yawning in jewel fish ((Microspathodon chrysurus) in 1971. It was found that yawning correlates with increasing excitement and decreasing activity levels, and is evoked through either endogenous or exogenous stimulation.
It was noted that the yawn decreases the flow of oxygen over the gills and as such cannot be considered to follow the same primary purpose attached to yawning in mammals of increasing the oxygen intake of the bloodstream. It as been suggested by others (DumPART, cited in Pfiper, 1963; Altmann, 1967; Redican, 1975) that it has some connection to reestablishing the equilibrium between oxygen and carbon dioxide in the bloodstream, though no evidence or experiments seem to exist to contradict or confirm this.
I can still find no link between nitrates and yawning however.
Wilder, that link is a webpage of someone's opinions. I could write a webpage like that and say that the world is flat (in fact, I know of at least one that does) that does not make it so. I meant some scientific links between nitrates and yawning where people have looked at the amounts involved.
A lot of people think that nitrates of 40ppm is too high when experiments have only shown that 100ppm is too high. You see my difference here, one is someone's opinion, the other is something that has been hypothesised based on the data from experiments.
It was noted that the yawn decreases the flow of oxygen over the gills and as such cannot be considered to follow the same primary purpose attached to yawning in mammals of increasing the oxygen intake of the bloodstream. It as been suggested by others (DumPART, cited in Pfiper, 1963; Altmann, 1967; Redican, 1975) that it has some connection to reestablishing the equilibrium between oxygen and carbon dioxide in the bloodstream, though no evidence or experiments seem to exist to contradict or confirm this.
I can still find no link between nitrates and yawning however.
Wilder, that link is a webpage of someone's opinions. I could write a webpage like that and say that the world is flat (in fact, I know of at least one that does) that does not make it so. I meant some scientific links between nitrates and yawning where people have looked at the amounts involved.
A lot of people think that nitrates of 40ppm is too high when experiments have only shown that 100ppm is too high. You see my difference here, one is someone's opinion, the other is something that has been hypothesised based on the data from experiments.
Learnt it on fish profiles they said if a fish yawns to much look at your test results, plus i've seen it scrolling through things, but i don't no if it's true or not.
Abit more info
Other reasons could include high levels of gases in the water, elevated nitrites/ates, or an effort to rid themselves of gill parasites.
Abit more info
Other reasons could include high levels of gases in the water, elevated nitrites/ates, or an effort to rid themselves of gill parasites.
andywg
Bored into leaving
Where are you getting this info from? There is no evidence to back up what you are saying...
I could sit here and write a fish yawns when it is too close to a nuclear power station.
Without any form of evidence to back up what you are saying you are posting nought but opinion.
I could sit here and write a fish yawns when it is too close to a nuclear power station.
Without any form of evidence to back up what you are saying you are posting nought but opinion.
andywg
Bored into leaving
Just as well, as that link supports my view that nitrates are not a major factor (if one at all) in fish yawning 
Neal
Live life, don't let it live you!
People are entitled to an opinion and reading this it sounds like a really bitchy arguement coming from you Andy, i'm suprised! Wilder didn't say that yawning is only because of nitrites, but she said that it can cause them to yawn more. Please don't argue back at me for saying this, i'm trying to be a peace keeper!
Neal
Neal
@ombomb
Fish Gatherer
*yawns*
andywg
Bored into leaving
If you are arguing as a peace keeper, why jump in after it all has died?
Similar timing to the UN there...My point is that there is no evidence to even suggest that yawning is caused by poor water quality. Or would you prefer we let any old opinions prevail on this forum without any eivdence to back them up? We could go back to "fish grow to the length of the tank" and "aquarium salt is good for brackish fish".
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