Fish, Pain, and Memory-The Controversy

SchizotypalVamp

The REAL AC Mafia
Mar 18, 2008
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So, this conversation goes on back and forth on the boards from time to time. I though I would post this up before studying all night for biology final.

Fish have memory-how would that goldfish have learned the tricks that it did and why would fish beg for food? How would pecking orders be established and fish remember being beaten up by another, or remember where their territory is? I've heard one person state that fish cannot see out of the glass that far-I tested this once with a particularly aggressive betta, for instance. He would flare up when my finger came too close, and he stopped flaring at about a foot away. This was in a plastic tank, which has the worst clarity, and it is also possible he stopped because my finger was a comfortable distance away. Yes, he frequently threatened me when I was sitting at my desk. I believe there are also scientific studies based on the memory of fish recently.
Here is a link to the university of indiana on a faq about fish memory:
http://amos.indiana.edu/library/scripts/fishmemory.html
I know there were scientific studies and later I will post them up.

So basically fish have receptors which pick up when the fish is damaged and in danger and these are transmitted to their brain where it creates a chemical reaction. This is what happens in all brains! Some technicalities are different, but pain has nothing to do with intelligence and emotion has nothing to do with intelligence. To say whether they feel the pain humans feel or not is a moot point, as that is simply metaphysical speculation.
Here is some research from the Royal Society of England:
http://royalsociety.org/news.asp?year=&id=1697

An interesting point is that "Fish" is a huge group with many variations in it.
 
I for sure agree with you, all of our fish get extremily excited and move towards the top of the tank anytime we get withing a foot or two of their tanks. They always assume we are coming with something to eat of course. I would like to eventually train them to jump through a loop... though it may be a while off yet lol. In all seriousness though, yes I would think it would very unintelligent of someone to say fish do not have any kind of memory.
 
This is one of the most forgotten aspects of "incompatibility". In any given tank, all inhabitants form a hierarchy which is only changed when a fish gives a successful fight and gets a higher place in the tank. This hierarchy is in a dynamic equilibrium and will change all the time with fights or when a fish is sick or weaker. The rest of the fish will immediately rearrange the order and everything will go on smoothly while the sick fish will be chased, bullied and finally drop many places in the hierarchy, losing its territorial rights as well. If a fish - for any reason - is removed from the tank and subsequently returned in the tank, it will have to fight its way back to its original place in the hierarchy. Every hobbyist can see that in his own tank if he or she spends some time in front of it. When a hobbyist adds a new fish in an existing cichlid tank, it should be larger and a bit more aggressive than the fish already inhabiting the tank. Many fights and kills are due to this reason. This usually puzzles the hobbyist since he can't understand why his fish was killed when re-introduced in the tank while it was never chased before. A way to solve this problem is to start with larger peaceful species first, let them acclimatize and then add the more aggressive fish which should be a bit smaller in size. This will guarantee that the milder species will have some time to get the best hiding places and territories.

i didnt write this
 
how about giving credit to who ever did? Not really nice to post somepne else's thoughts and not give them credit...
 
Interesting thoughts STV. I'm educmacating myself here on those links.
 
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