What do we look like to fish? - The Planted Tank Forum
 
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post #1 of 15 (permalink) Old 01-25-2011, 03:59 PM Thread Starter
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Question What do we look like to fish?

been wondering about this for a while. is there some info? in photography there are "fisheye" lens which are ultra extreme wide lens with a view of 180 degrees or greater. everything looks distorted in that lens. don't know if it's how we look like to the fish though. would be nice to know.
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post #2 of 15 (permalink) Old 01-25-2011, 04:20 PM
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Yeah, and what do they think of us when we keep staring at them all day or most of the day. I know mine get agitated when they see me thinking, it's meal time.

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post #3 of 15 (permalink) Old 01-25-2011, 04:24 PM
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What do we look like to fish?
Answer; provider of the food.

I don't know about they're vision being all that distorted if at all. I'm the one doing 99% of the feeding in my house and I'm identified at 15' or more away from the tank. My son or wife passing the tanks don't get more than a second glance. They splash water out of the tank when I walk in the room after work.


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post #4 of 15 (permalink) Old 01-25-2011, 05:03 PM
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Originally Posted by wkndracer View Post
What do we look like to fish?
Answer; provider of the food.

I don't know about they're vision being all that distorted if at all. I'm the one doing 99% of the feeding in my house and I'm identified at 15' or more away from the tank. My son or wife passing the tanks don't get more than a second glance. They splash water out of the tank when I walk in the room after work.
x2

My fish are the same way. They could care less about the kids and my wife. With me, they're about ready to jump out the tank and grab my pork chop off my plate.


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post #5 of 15 (permalink) Old 01-25-2011, 05:06 PM
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What do we look like to fish?
Answer; provider of the food.
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post #6 of 15 (permalink) Old 01-25-2011, 07:51 PM
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tetras ar for sure a little bit....ignorant not to say dumb
but the angels, oscars (the cichlids as a whole) are quite inteligent and they know their owner from miles away
disputed fact. my boss lives in the countryside. he has 12 angels in a 500 liter tank. his wife told me that they even recognize the sound of the boos's car engine. that can be possible bc the fish have the lateral line as i remember. an organ very very sensible at vibration
As for what they see.....hmm i suspect that in tones of blue. but this is only anecdotal
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post #7 of 15 (permalink) Old 01-25-2011, 08:48 PM Thread Starter
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no no no, these are excellent answers, but not what i am asking about. every fish feeder will have similar experience about the fish responding to their prescence.

what I really mena, is the vision. i mean, between us and the fish, there is water, and then the glass or acrylic. i am sure the glass is not totally flat because of the water pressure. so what do we look like to the fish after all these things? If I look at someone thru a glass ball as an extreme example, it would look totally different, hardly recognizable.
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post #8 of 15 (permalink) Old 01-25-2011, 08:52 PM
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I say get a large enough tank, jump in, look out and tell us what it looks like lol.


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post #9 of 15 (permalink) Old 01-25-2011, 09:22 PM Thread Starter
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I say get a large enough tank, jump in, look out and tell us what it looks like lol.

fair enough. i open my eyes under water in the swimming pool all the time, it looks just a bit darker and visibility is only a few meters. however my eyes are not fish eyes, so I still don't know what does a fish see. feels great under water tho.
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post #10 of 15 (permalink) Old 01-25-2011, 10:05 PM
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so that they say

Sense organs

Most fish possess highly developed sense organs. Nearly all daylight fish have color vision that is at least as good as a human's. Many fish also have chemoreceptors that are responsible for extraordinary senses of taste and smell. Although they have ears, many fish may not hear very well. Most fish have sensitive receptors that form the lateral line system, which detects gentle currents and vibrations, and senses the motion of nearby fish and prey.[19] Some fish, such as catfish and sharks, have organs that detect low-level electric current.[20] Other fish, like the electric eel, can produce electric current.





Light: photoreception [Vision]. Fish have a very keen sense of vision, which helps them to find food, shelter, mates, and avoid predators. Fish vision is on par with our own vision; many can see in color, and some can see in extremely dim light.
Fish eyes are different from our own. Their lenses are perfectly spherical, which enables them to see underwater because it has a higher refractive index to help them focus. They focus by moving the lens in and out instead of stretching it like we do. They cannot dilate or contract their pupils because the lens bulges through the iris. As the depth at which fish are found increases, the resident fish's eye sizes increase in order to gather the dimmer light. This process continues until the end of the photic zone, where eye size drops off as their is no light to see with. Nocturnal fish tend to have larger eyes then diurnal fish. Just look at a squirrelfish, and you will see this to be so. Some fish have a special eye structure known as the Tapetum lucidum, which amplifies the incoming light. It is a layer of guanine crystals which glow at night. Photons which pass the retina get bounced back to be detected again. If the photons are still not absorbed, they are reflected back out of the eye. On a night dive, you may see these reflections as you shine your light around!






Soo ..seems that it is possible that they see us in a similar manner in which we see them
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post #11 of 15 (permalink) Old 01-25-2011, 10:12 PM
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most excellent post


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post #12 of 15 (permalink) Old 01-25-2011, 11:10 PM
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They splash water out of the tank when I walk in the room after work.
Isn't it funny how they seem to know when it's feeding time? Mine get mildly excited when I get close to the tank, but they go nuts when I open the front door coming home from work also.
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post #13 of 15 (permalink) Old 01-26-2011, 01:09 AM
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One word....GOD
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post #14 of 15 (permalink) Old 01-26-2011, 01:25 AM
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post #15 of 15 (permalink) Old 01-26-2011, 03:16 AM Thread Starter
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lot of interesting info, and i learned a lot too!
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