July 5, 2013
Great Barrier Reef Jumping Snails Leap Over Global Warming
Society for Experimental Biology
Snails in the Great Barrier Reef literally jump for their life to avoid predators. But will they be able to maintain these life-saving jumps, with rising sea temperatures? A new study, to be presented at the Society for Experimental Biology meeting in Valencia on July 5, shows that the snails will indeed be able to keep on jumping, even at temperatures which will kill fish.
The researchers analyzed resting and active jumping oxygen consumption rates in snails exposed to seawater at the normal temperature of 29 degrees C and at the increased temperature of 34 degrees C, projected to be reached during the next 100 years due to global warming.
Dr Sjannie Lefevre said: "We found that the snails increased their oxygen consumption 4-5 times during jumping. They were able to maintain this strong increase in oxygen uptake even when the seawater temperature was increased to 37 degrees C - a temperature at which coral reef fish cannot even survive for a short time."