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https://theconversation.com/marine-species-are-being-pushed-towards-the-poles-from-dugong-to-octopuses-here-are-8-marine-species-you-might-spot-in-new-places-207115>
"If you take a plunge in the sea this winter, you might notice it’s warmer than
you expect. And if you’re fishing off Sydney and catch a tropical coral trout,
you might wonder what’s going on.
The reason is simple: hotter water. The ocean has absorbed the vast majority of
the extra heat trapped by carbon dioxide and other greenhouses gases. It’s no
wonder heat in the oceans is building up rapidly – and this year is off the
charts.
That’s even without the likely arrival of El Niño, where the Pacific Ocean gets
warmer than usual and affects weather all over the world. Our coastal waters
are forecast to be especially warm over the coming months, up to 2.5℃ warmer
than usual in many places.
Many marine species live within a narrow temperature range. If the water heats
up, they have to move, and if they don’t, they might die. So those that can
move, are moving. In Australia, at least 200 marine species have shifted
distributions since 2003, with 87% heading south.
This pattern is happening all around the world, both on land and in the ocean.
This year, the warmer ocean temperatures during winter mean Australia’s
seascapes are likely to be more like summer. So, the next time you go fishing
or diving or beachcombing, keep your eyes peeled and your camera ready. You may
glimpse the enormous disruption happening underwater for yourself."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
