Oceanos más acidos ensordecen a peces

un pez "payaso"
Aprenda Inglés con BBC Mundo
Lea la noticia en inglés.

Ocean acid may make fish deaf

Scientists in the UK have published a report suggesting acidic sea water could be turning fish deaf.

This could be very damaging to many fish species as they rely on their hearing for survival.


Reporter:
Janet Barrie
Spectacular tropical clownfish who live around ocean coral reefs rely heavily on their hearing, say scientists. It helps them find a mate, foragefor food, and crucially avoid predators lurking in the depths.
Scientists from the University of Bristol in England bred baby clownfish then exposed different groups of them to different levels of carbon dioxide in the water around them: one at today's levels, and the others at the levels the world's oceans are predicted to reach by 2050 and the year 2100.
They tested their hearing by piping in to each tank the sounds of the coral reef. Those in today's conditions swam away from the noise ofpredators. Those in the mocked-up waters of the future showed no response, suggesting they couldn't hear.
Scientists say the more carbon dioxide we emit, the more oceans absorband the more acidic the water becomes, and that has potentially devastating consequences for fish.
What they don't know though is whether fish will be able to adapt andtolerate the changing waters.
Janet Barrie, BBC
Listen to the words


forage
forrajear
predators
depredadores
lurking
merodeando
piping in
introduciendo (por un tubo)
mocked-up
falsos
emit
emitir
absorb
absorber
potentially devastating consequences
consecuencias potentialmente devastadoras
to adapt
adaptarse
tolerate
tolerar

0 Comentarios :

El comentario debe estar relacionado con la publicación.
Se hará visible una vez sea aprobado.

Copyright © 2016 - 2017 Colegio Santísima Trinidad