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New research shows that global climate change will affect the distribution of phytoplankton. Under warmer conditions, phytoplankton are expected to migrate away from the tropics and shift towards the cooler polar waters, which means we will have less diversity of phytoplankton around the tropics, which could also reduce fish diversity, impacting millions of people that rely on this food resource.
Even though they live in the ocean, dolphins and whales are not fish! They are warm-blooded mammals that breathe air, and feed their calves milk, just like us. In fact, even though they have very smooth skinned bodies, they also have hair. Some shed these hairs when they are born, but others still retain small hairs on their faces.
One species of squid which lives in the depths of the Pacific Ocean does not bother to distinguish male from female when mating. At the dark depths where sight is limited, male and female squid look very similar, so males will mate with and attach sperm packets to any squid of the same species. Now that’s being opportunistic.
If you could take all of the bigger organisms of the ocean (whales, sharks, fish, squid) and add up their total weight, and then took all of the microscopic organisms (like plankton) in the ocean and added up their total weight, which one would weigh more? You might be surprised to hear that the microscopic organisms weigh over 40 times more than all other organisms in the ocean combined!
What’s the longest mountain range on Earth? Nope it’s not the Andes! The Mid-Ocean Ridge is a long connected series of underwater mountains that crisscross the globe like the seams on a baseball. This long mountain range is found in all of the world’s oceans and is made up of oceanic crust or rock that is 200 million years old.
Photo: Luiz Rocha/California Academy of Sciences, ABC News Climate change is increasing the severity and frequency of coral bleaching events as a result of rising sea surface temperatures. The coral animals that build the foundation framework of coral reef ecosystems are sensitive to these thermal stress events that occur in the marine environment and can respond to this stress in a visually striking way known as coral “bleaching”. When corals bleach, the symbiotic algae held in their tissues are lost, generating the stark white color giving this response its name. Under normal... (more)