Among the 10 goals for ocean health, the index assesses the oceans’ ability to provide food, either grown or caught, and the opportunity for small-scale…Read More »
fishing operations upon which many people, particularly in the developing world, rely for food. Less «
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Benefits of Tourism
Credit: Jim Abernathy
According to the index, tourism isn’t just about bringing money into a coast region, there is a value of experiencing and enjoying coastal areas. Here, divers visit with a tiger shark.
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More Than Food
Credit: Courtesy of Bio Architecture Lab, Inc.
Oceans provide resources other than food. Seaweed, like this brown kelp, can be eaten or used in other ways. For instance, the sugars in the kelp are a promising source of biofuel.
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Credit: Ed Melvin/Washington Sea Grant
Unfortunately, overfishing, coastal development, pollution and other human activities have altered marine ecosystems, eroding their capacity to provide…Read More »
what people need from them, write the authors of the index. Above, Japanese longline fishermen catch southern bluefin tuna from waters near New Zealand. Less «
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Credit: Shin-ichi Uye
In Japanese waters, massive jellyfish blooms, like this one, have increased interfering with fishermen. Jellyfish blooms are often blamed on overfishing,…Read More »
pollution and other human activities, although some scientists say there is no evidence they are increasing globally. Less «
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A Giant Jelly
Credit: Yomiuri Shimbun
Jellyfish can create problems, but they can also inspire.
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Credit: Hughes et al. Current Biology
Coral reefs have great importance to humans because they provide habitat for many species that people eat. Human alterations to the oceans, specifically…Read More »
the acidification and warming of waters, threatens them. Less «
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Some are attempting to help the corals out by replanting them. Above, divers load up a crate with staghorn coral raised at the nursery. The coral will…Read More »
be raised to the surface and, after a short boat ride, arrive at a new reef home several miles away. Less «
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Pollution, such as the oil spewed by the Deepwater Horizon explosion in 2010, is a serious threat to ocean health.
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More Acidic Waters
Excess carbon dioxide, a greenhouse gas, in the atmosphere enters the oceans causing them to become more acidic. Scientists worry this could effect ocean…Read More »
food chains because the more acidic waters could interfere with some animals ability to build shells. Above, a free-swimming planktonic mollusk, an important food source for North Pacific salmon. Less «