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25
The first expedition to use a deep-diving submersible to study the Atlantic Ocean lionfish invasion found something very disturbing -- at 300 feet deep, there were still significant populations of these predatory fish, and they were big. Big fish can reproduce much more efficiently than their younger, smaller counterparts, and lionfish can travel. This raises significant new concerns in the effort to control this invasive species that is devastating native fish populations on the Atlantic Coast and in the Caribbean Sea.

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25
The seeding of marine clouds to cool sea surface temperatures could protect threatened coral reefs from being bleached by warming oceans. Recent research proposes that a targeted version of the geo-engineering technique could give coral a fifty year ‘breathing space’ to recover from acidification and warming.

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25
Corals may let certain bacteria get under their skin, according to a new study. The study offers the first direct evidence that Stylophora pistillata, a species of reef-building coral found throughout the Indian and west Pacific Oceans, harbors bacterial denizens deep within its tissues.

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25
A study has shown for the first time that sea stars (also known as starfish) use primitive eyes at the tip of their arms to visually navigate their environment. New research has shown that sea star eyes are image-forming and could be an essential stage in eye evolution.

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25
Snails in the Great Barrier Reef literally jump for their life to avoid predators. But will they be able to maintain these life-saving jumps, with rising sea temperatures? A new study shows that the snails will indeed be able to keep on jumping, even at temperatures which will kill fish.

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25
To prevent coral reefs around the world from dying off, deep cuts in carbon dioxide emissions are required, says a new study. Researchers find that all existing coral reefs will be engulfed in inhospitable ocean chemistry conditions by the end of the century if civilization continues along its current emissions trajectory.

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25
Boat noise disrupts orientation behavior in larval coral reef fish, according to new research. Reef fish are normally attracted by reef sound but the study, conducted in French Polynesia, found that fish are more likely to swim away from recordings of reefs when boat noise is added.

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25
Ocean acidification due to rising carbon dioxide levels will reduce the density of coral skeletons, making coral reefs more vulnerable to disruption and erosion, according to a new study of corals growing where submarine springs naturally lower the pH of seawater. The study is the first to show that corals are not able to fully acclimate to low pH conditions in nature.

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