Atlantic plankton all but wiped out in catastrophic loss of life

Mark Howarth – July 17, 2022

Scientists have discovered a catastrophic loss of life in our oceans, we can reveal.

An Edinburgh-based research team fears plankton, the tiny organisms that sustain life in our seas, has all but been wiped out after spending two years collecting water samples from the Atlantic.

The landmark research blames chemical pollution from plastics, farm fertilisers and pharmaceuticals in the water. Previously, it was thought the amount of plankton had halved since the 1940s, but the evidence gathered by the Scots suggest 90% has now vanished.

The scientists warn there are only a few years left before the consequences become catastrophically clear when fish, whales and dolphins become extinct, with grave implications for the planet. In the report, the researchers from the Global Oceanic Environmental Survey Foundation (Goes) state: “An environmental catastrophe is unfolding. We believe humanity could adapt to global warming and extreme weather changes. It is our view that humanity will not survive the extinction of most marine plants and animals.”

The findings have prompted calls for urgent action on a number of fronts as observers warn the promises of Cop26 to ease the climate crisis have, so far, amounted to little.

Fiona Nicholls, an oceans campaigner for Greenpeace UK, said: “Our oceans can be our allies in fighting climate change, but there is simply no time to waste.”

Goes – based at Edinburgh University’s Roslin Innovation Centre in Midlothian – has been collecting samples from the Atlantic and the Caribbean from its yacht, Copepod. Setting out from Scotland, it sailed along French and Portuguese coasts before crossing the Atlantic. The yacht is currently moored in Cartagena, Colombia, before setting sail for Panama this week.

In addition to their own samples, the Goes researchers have provided monitoring equipment to other sailing boat crews so that they can perform the same trawls and report back with their results.

https://www.sundaypost.com

Dramatic shark decline leaves ‘gaping hole’ in ocean: Study

CNA – January 28, 2021

TOKYO: Overfishing has savaged populations of some sharks and rays by more than 70 per cent in the last half-century, leaving a “gaping, growing hole” in ocean life, according to a new study.

Decades of data show an alarming decline in species ranging from hammerhead sharks to manta rays.

Among the worst-affected is the oceanic whitetip, a powerful shark often described as particularly dangerous to man that now hovers on the edge of extinction because of human activity.

Targeted for their fins, oceanic whitetips are also the victims of indiscriminate fishing techniques. Their global population has dropped 98 per cent in the last 60 years.

“That’s a worse decline than most large terrestrial mammal populations, and getting up there or as bad as the blue whale decline,” Nick Dulvy, a professor at Simon Fraser University’s department of biological sciences, told AFP.

Dulvy and a team of scientists spent years collecting and analysing information from scientific studies and fisheries data to build up a picture of the global state of 31 species of sharks and rays.

They found three-quarters of the species examined are now so depleted that they are threatened with extinction.

https://www.channelnewsasia.com