Search Results for Tag: overfishing
Coral collapse considered evitable
Normally, we mostly present you animals threatened by climate change – but this time, we have some good news for you: Researchers recently found out that there is a way corals might actually survive the multiple threats of humanity. We actually give these small creatures a very hard live: pollution, overfishing and last but not least climate change. The latter influences the reefs by ocean acidification and rising sea temperatures.
For a long time it was thought that those cnidaria folks won’t cope with those impact. But the new study gives a glimpse of hope: If we manage to lower CO2 emission under the current level and stop overfishing, then all reefs with more than 20 per cent coral cover will survive. That’s the only chance, the researchers figured out.
For their work they took into account models for climate change, ecosystem dynamics, and carbonate processes. That way they could show that fish colonies are crucial for corals to survive, as they eat away straggling algae on the reefs resulting in more space for corals to grow.
DateMay 19, 2013
Tagsclimate change, coral reefs, corals, global warming, ocean acification, ocean warming, overfishing
Dire Straits for Coral Reefs
It's no secret that coral reefs around the world are under threat because of climate change. Coral reefs represent some of our most important natural resources, providing livelihood, food and protection for marine biodiversity. And now environmentalists say 75% of our existing coral reefs are in the danger zone.
According to a report called "Reefs at Risk Revisited," overfishing, warmer waters and pollution are among the biggest culprits endangering reefs today. Also, pwards of 500 million depend on reefs for sustenance and income. And it's only going to get worse in the next 20 to 50 years.
So what can we do? Cutting down on water consumption and pollution will in turn slash our CO2 emissions, which is a big plus. But also support reef-friendly businesses whether you're fishing, boating or snorkeling! And raising awareness is also key. Here's one way to spread the word: send coral reef e-cards from The Nature Conservancy!
DateFebruary 23, 2011