T.R | Title | User | Personal Name | Date | Lines |
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551.1 | Kill em right away... | TOOK::SWEET | | Tue Dec 22 1987 13:09 | 8 |
| While I am not sure what type of nervous system fish have and how
much pain they do or do not feel I do know the following.
Any fish you plan to keep (ie. eat) should be kill immediatly and
bled. This is the most humane way (as opposed to them suffocating
in a cooler) and will yield the best tasting fillets.
Capt. Codfish
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551.2 | exi | WFOVX7::WHITTEMORE | | Tue Dec 22 1987 14:18 | 9 |
| My answer would be 'yes'. I belive that a fishes tactile nervous
system is more than capable of registering 'pain'. What else could
expain the way fish 'learn' from our mistakes? They get the 'point'
and remember it.
Joe W.
Where the Westfield meets the Westfield on the Westfield in Huntington!
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551.3 | Pain? | NIMBUS::LESICA | | Tue Dec 22 1987 15:37 | 11 |
| This is a controversial subject when taking about any lower species.
Fish, like other animal species, react to pain. The question is
do they understand what pain is? Not being highly intelligent it
is believed they don't understand what pain really is and therefor
don't feel pain but a stimulus and react to that. Not really knowing
is why we have these anti-vivisection and animal rights groups lobbying
for animal protection. Maybe someone should invent painless hooks!
Joe
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551.4 | I just want to know | PNEUMA::DECAROLIS | | Tue Dec 22 1987 15:56 | 17 |
|
So far no-one has been able to tell me whether or not fish
have a nervous system. I'm not an anti-vivisection lobbyist,
I just want to know because this question was raised in the
SOAPBOX file, and only 1 fellow, who was familiar with a salmon
research facility, claims thats fish have a reactive system
only.
I was always under the impression that fish, being cold-blooded,
do not have a nervous system, therefore, feel no pain. Whales
and porpoises are warm blooded, and definatley feel pain.
So does anybody have the facts?! Do fish (tuna, cod, makerel)
feel pain?
Thanks
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551.5 | No nervous system..how does it move? | DECWET::HELSEL | | Tue Dec 22 1987 18:14 | 21 |
| Why would a fish not have a nervous system because it is not warm
blooded?
It has some sort of dendritic nerve for a brain, hence there must
be nerves to control. I would think the CNS runs along the spine.
Heck I remember cutting up annelids (Class = bait; Species = worm)
in 7th grade bio and poking around the dendrite. I can't think
of anything over an annelid (I don't say "worm" because I'm not
sure about tape worms and other lower species of worms) that does
not have a dendrite or a brain.
I am sure a fish, like a worm, feels pain. Surely you've watched
the worm being hooked and you know this hurts. I'm sure it hurts
the fish as well.
However, if anyone tells me not to fish because fish feel pain
I'm going to have to inform that person that he or she is full of
**** and to leave me alone.
Brett_who_may_go_home_and_look_for_his_college_biology_book.
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551.6 | Pain?...a good possibility. | 30738::SAUNDERMI | | Tue Dec 22 1987 20:45 | 19 |
| CAUTION!!!!!!
This is a totally unscientific response.
I do believe that fish feel pain, but like many animals, are able
to function much better than humans when in pain.
This is based on strictly unscientific observation:
An injured fish does tend to favor the area where the injury is
located (even if the injury does not include loss of fin, etc.).
I have seen and heard fish "scream" when sliced, especially rays,
they don't take well to cleaning.
I agree with the "clean kill" method in an earlier response, if
you are going to keep it and eat it, get it over with quickly.
If not, take care when releasing it and let it grow bigger and suffer
less.
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551.7 | PAIN? "Baaa_Hum-Bug"... | ATEAM::MERCURIO | SON, were talkin' about A MONSTER | Wed Dec 23 1987 14:40 | 44 |
|
I'd like to put my 2 cents in here. I firmly believe that fish don't
feel pain or feel anything like we feel, whether it be pain, or
discomfort or the opposite of this such as being comfortable. I
do believe that they try to get into a situation which allows them
to function with little change in there environment and still be
able to satisfy their bodily funtions in an efficient manner. In
other words they try to work it so they don't have to do much or
work hard to survive, and they set the conditions which provide
minimum stress to accomplish their daily duties such as eating.
A fish is more reactive and is stimulated into doing things which
may seem like they are feeling pain but in fact are reacting to
something which is different within there environment or possibly
frightening. Depending on the type of fish, some are more sensitive
than others or should I say can sense more changes in there environment
than others, therefore more reactionary. I fish mostly for bass
and I have experimented with them on various occasions and have
concluded that they react differently under different conditions.
An example is when hooked, a bass will fight as long as you are pulling
or retrieving it, but if you suddenly stop pulling and just let
the line loose it just goes back to a more normal movement. It
does very little unless the lure is heavy or they sense something
hanging or swinging from their mouth, then it will try jumping and
work to get the lure out of it's mouth. I've watched smallmouth bass
return to a nest with a lure still it's mouth and not show concern.
The times I've seen anything that looked like pain in a bass was
when the hook was imbedded in the lower jaw, right on the pad where
you hold them to remove a hook. Under these conditions they reacted
more violently then when the lure was in other parts of their mouth.
I still don't think they were experiencing pain as we know it, but
more like a different sensation which got their attention and they
wanted to get rid of it. Another experiment which I repeated was
with 2 bass in an aquarium. I would feed them worms at times and
noticed on several occasions I'd put a worm in and both bass would
attack but only one would be successful in capturing it, yet both
would swim away chewing. I deduced from this that they had very
little feeling in their mouths and reacted only from what they saw
rather than what actually happen. I've got to go now, love to say
more here, but too many things going on....
Happy Holidays To All
Jim
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551.8 | Fear without pain? | DECWET::HELSEL | | Wed Dec 23 1987 16:59 | 29 |
| re: .6
Oh yea, I forgot to mention that even though I don't know if fish
feel pain, I try to get them back in the water fast to keep them
healthy. I think most people in this file feel that way and it
goes unsaid.
re: .7
I'm not arguing with you, but you brought up an interesteing point
when you said that perhaps fish were reacting sometimes because
they wer "frightened". I was think, "Can you be frightened if you
never experienced pain?"
I don't want to get to philosophical here, That was just my reaction.
I never thought about this much, but I always figured fish felt
pain.
Your point about fish not fighting once you let the tension off
is a good point. I suppose once that hole is opened, it feels the
same, hook in it or not, without tension.
I'm pretty sure that being filleted hurts, though. :-)
By the way, I'm not an expert either, just trying to draw from all
those hours spent in a biology class room.
Bret.
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551.9 | | BPOV09::JAMBERSON | | Thu Dec 24 1987 09:37 | 5 |
| I've "stuck" a number of swordfish with harpoons, and I _know_ that
they reacted. The question is whether they reacted from pain or
fear. I don't know why they reacted, only that they did. Have
fun with the SOAPBOX discussion. 8*)
Jeff
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551.10 | Tis the Season...... | MENSCH::SCHOLZ | Ron....and thanks for all the fish | Thu Dec 24 1987 09:53 | 9 |
| I guess that this is as good a note as any to wish you all a very
HAPPY HOLIDAY SEASON, and may all your shorts turn into trophies,
may your hooks never rust and may all your fishing days be filled
fun, fish and good times........
Tight lines, Ranger Ron Scholz
ps. fish have a nervous system, but do not feel pain (as we understand
it).
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551.11 | NO PAIN NO GAIN | SCOMAN::WOOLDRIDGE | | Thu Dec 31 1987 11:29 | 10 |
| WHEW!
Thanks Ron. I thought we would never get a straight answer
here. They have a nervous system but do not feel pain.
They also get plenty "nervous" when the NIGHTCRAWLER~~~~~~
is fishing for them! They are low on the food chain so speak. Sort
of like the ledgend.
NIGHTCRAWLER~~~~~~~~~~
SOAPBOX??
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551.12 | NO PAIN.....NO BRAIN | PNEUMA::DECAROLIS | | Thu Dec 31 1987 13:08 | 11 |
|
There is a topic in SOAPBOX called the "Official Fisherman's
Bashing Note".....I posed the question of fish feeling pain, (I
didn't think they could). Many (all practically) of the noters
are positive that fish feel pain, even one die-hard fisherman
(I won't mention any names).
But thats' the SOAPBOX file for ya, everyone in there is certain
they are correct. They should call it the "Archie Bunker" file.
This fishing file is much more pleasant!
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551.13 | Why not fish? | ASD::DICKEY | | Mon Jan 11 1988 16:53 | 32 |
|
I agree that fish have a nervous system (since they are vertibrates),
but I would have to disagree with Ron on the issue of pain (my
reasoning follows).
First, fish shouldn't feel any pain (or any sensation) when a hook
penetrates the mouth since on most fish the mouth is composed of
cartelidge(sp?) which contains no nerves. The fish react because
the hooking action, and subsequently the pull by the fisherman puts
pressure on the jaw.
Pain, as we know it, is nature's way of letting us know something
is wrong, thereby allowing us to prevent further injury from whatever
is causing the pain. Physiologically, pain is the nerve cells being
irritated to the point where they repeatedly fire off signals to
the brain. The brain interprets these signals as indicating that
something is wrong. Humans have given this sensory overload the
name pain, and we have as a culture come to regard it as bad.
Why should we believe that this feedback mechanism works any
differently in lower life forms (specifically fish). The only
difference should be that the fish hasn't given the sensation the
name pain. The fish merely reacts instinctively to the sensation
and does its best to make it stop. I don't think anyone would
argue against the position that cats and dogs feel pain, so why
not fish?
I'm not a Marine Biologist, but have always had an interest in
biology so I'm comfortable in the belief that what I stated is
accurate.
Rich
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551.14 | Still confused? | PSYCHE::DECAROLIS | | Thu Jan 14 1988 10:19 | 27 |
|
>Why should we believe that this feedback mechanism works any
>differently in lower life forms (specifically fish). The only
>difference should be that the fish hasn't given the sensation the
>name pain. The fish merely reacts instinctively to the sensation
>and does its best to make it stop. I don't think anyone would
>argue against the position that cats and dogs feel pain, so why
>not fish?
Dogs and cats feel pain because they are warm blooded. Therefore,
I would have to disagree that fish are in the same category. I
understand what your saying, that pain is different for different
species.
>I'm not a Marine Biologist, but have always had an interest in
>biology so I'm comfortable in the belief that what I stated is
>accurate.
Rich
Me either Rich, and one of these days I'll get the source of
information I'm looking for from a biology teacher or a research
lab.
Jeanne
|
551.15 | New Evidence on Fish and Pain | LEDS::CAMPBELL | | Wed Dec 13 1989 15:57 | 44 |
|
Here is an interesting article from the Worcester Telegram "TELL ME
WHY" reprinted without permission.
" Do fish have pain sensors "
In order to feel pain, a sensation must pass through nerve fibers to
the brain. A nervous system is required for this to happen. And since
fish do have nervous systems they must be able to feel pain sensations.
The nervous system tells the fish about changes taking place outside
and inside its body. The nervous system puts all this information
together. it allows the fish to act on the information.
The nervous system of a fish is actually much like those found in
other vertebrates. At the head end,it is swollen into bulges that form
the brain. The spinal cord reaches down the body. The body also has
nerves.
Some are sensory nerves. They carry messages such as sensations of
pain, about the world outside the body or about variousparts of the
body. They send out signals for action in the muscles or glands.
In addition, there are special nerve cells that can receive changes
in light,sound,chemicals,and water movement. Groups of these spacial
cells form the sense organs: the eyes,ears, and nose. The sense
organs send info to the brain.
The brain has three main parts and they are connected by nerve
fibers. Information received by one part of the brain can be put
together with info from the other parts. Each part of the brain does
several important jobs. And the different sense organs report to
different parts of the brain.
So you see that fish have a well structured nervous system, which
enables them to do many things needed to exist under water.
Don Mac I know that there is a file on whether fish can feel pain
but I couldn't find it with a dir/tittle= .
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