Mangrove cover equivalent to an area half the size of Scotland has been lost between 19. However there's been a 30% decline in cover over the last century. That's more than double terrestrial forests. He is David Attenborough, of course, and this is Blue Planet II (BBC1). Seagrass stores 83,000 tons of carbon per square km. Bird-eating fish, surfing dolphins, rafts of sea otters. Adaptations and unique characteristics are seen in deep-sea. This is especially distressing as three quarters of the world’s coral reefs are currently threatened and coral reef cover has decreased by more than 50% over the last 30 years.Īt the currently projected levels of ocean warming and acidification, coral reefs could be lost altogether by 2050. The deep sea supports a remarkable diversity of fish species, with new discoveries still being made. However they cover less than 1% of the ocean. A zebra shark pup may be less than a foot long at birth, but an adult can grow to be almost 12 feet and have a tail that reaches half its full body length. With over 25 per cent of all marine species living in coral reefs and about 850 million people directly benefiting from their economic, social and cultural services, the loss of these reefs would be catastrophic.Ģ5% of all marine species live on coral reefs. The egg cases are covered in fine fibers that keep them anchored to the sea floor for about six and a half months while developing. While they typically range in color from a reddish brown to a pale grey or yellow, there’s one trait. Their appearance, however, is often variable depending on their age, sex and primary location. The orange spotted tuskfish is one of many creatures that have caused scientists to reconsider the idea that the ability to use tools is reserved for animals with higher cognition and brain. This turns out to work in favor of species low on the food chain: adorning your scales with shades of ruby means donning. It is very possible that we could lose coral reefs from most areas by 2050 as a result of climate change. As you can see, hogfish are show-stoppers in the looks department, boasting quite vivacious coloration. For instance, in the deep sea, many fish have lost the ability to see red. The report shows steep worldwide declines in the cover of coral reefs, mangroves and seagrasses that support fish species and provide valuable services to people.
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