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30/04/2003
Can fish feel pain? Scientists float new angle
Fishing enthusiasts have been put in their plaice after a team of experts from Edinburgh claimed to have evidence that fish can feel pain.
Research by a team of scientists from the Roslin Institute and the University of Edinburgh has concluded that fish can detect pain and adapt their behaviour to it.
The study, which was undertaken on rainbow trout, found that there were nervous system receptors in the head that responded to "damaging stimuli".
The team also injected noxious substances – like bee sting and acetic acid – into the lips of the selected trout which produced "profound behavioural and physiological" changes in the fish – similar to those observed in higher mammals.
"Anomalous behaviours were exhibited by trout subjected to bee venom and acetic acid," said research leader Dr Lynn Sneddon.
"Fish demonstrated ‘rocking’ motion, strikingly similar to the kind of motion seen in stressed higher vertebrates like mammals, and the trout injected with acetic acid were also observed to rub their lips onto the gravel in their tank and on the tank walls. These do not appear to be reflex responses."
It has previously been established that birds and mammals are capable of experiencing pain.
(GMcG)
Research by a team of scientists from the Roslin Institute and the University of Edinburgh has concluded that fish can detect pain and adapt their behaviour to it.
The study, which was undertaken on rainbow trout, found that there were nervous system receptors in the head that responded to "damaging stimuli".
The team also injected noxious substances – like bee sting and acetic acid – into the lips of the selected trout which produced "profound behavioural and physiological" changes in the fish – similar to those observed in higher mammals.
"Anomalous behaviours were exhibited by trout subjected to bee venom and acetic acid," said research leader Dr Lynn Sneddon.
"Fish demonstrated ‘rocking’ motion, strikingly similar to the kind of motion seen in stressed higher vertebrates like mammals, and the trout injected with acetic acid were also observed to rub their lips onto the gravel in their tank and on the tank walls. These do not appear to be reflex responses."
It has previously been established that birds and mammals are capable of experiencing pain.
(GMcG)
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Northern Ireland WeatherToday:A showery start with outbreaks most frequent north of Lough Neagh and through the morning, before dwindling during the afternoon as the northwest breezes ease and brighter spells of weak sunshine prosper. Maximum temperature 8 °C.Tonight:A dry night, save for a few light showers around the coasts, with prolonged clear spells and light winds bringing a frosty dawn for many in central and southern parts. Minimum temperature -3 °C.
