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But studies have suggested it will slow down or even collapse, which could have a catastrophic effect on our climate, and lead to more extreme weather. The National Oceanography Centre in ...
An illustration from an 1866 Japanese book. Mahoraga, who is an incarnation of Bodhisattva Kannon in this scene, gives a sermon to folks. The Mahoraga are one of the eight classes of deities (aṣṭasenā) that are said to protect the Dharma. They are described as huge subterranean serpents who lie on their sides and rotate the earth, which ...
A lower ocean pH has a range of potentially harmful effects for marine organisms. Scientists have observed for example reduced calcification, lowered immune responses, and reduced energy for basic functions such as reproduction. [38] Ocean acidification can impact marine ecosystems that provide food and
Dead diatoms drift to the ocean floor where, over millions of years, the remains of their frustules can build up as much as half a mile deep. [64] Diatoms have relatively high sinking speeds compared with other phytoplankton groups, and they account for about 40% of particulate carbon exported to ocean depths. [60] [65] [62]
Pelagic zones. The ocean can be conceptualized as being divided into various zones, depending on depth, and presence or absence of sunlight.Nearly all life forms in the ocean depend on the photosynthetic activities of phytoplankton and other marine plants to convert carbon dioxide into organic carbon, which is the basic building block of organic matter.
Rapid change to ocean environments allows disease to flourish. Disease-causing microbes can change and adapt to new ocean conditions much more quickly than other marine life, giving them an advantage in ocean ecosystems. This group of organisms includes viruses, bacteria, fungi, and protozoans.
The periodic El Niño events reduce the cold water needed for algae to grow and this can drastically reduce the marine iguana population, on some islands with as much as 90%. [73] Population recoveries after El Niños are fast; even when reduced by 30–50%, the population is generally able to recover within four years. [7]
[3] [4] These changes can push climatic conditions outside of the species' niche, and ultimately render it extinct. [5] Normally, species faced with changing conditions can either adapt in place through microevolution or move to another habitat with suitable conditions. However, the speed of recent climate change is very fast.