Juvenile fish must immediately learn to catch prey and to escape enemies. Additionally, at this stage of their lives, they are highly sensitive to environmental factors such as temperature, oxygen and the pH of the water. These factors are currently changing on a global scale—temperature is risi ...
Biodiversity in the Caribbean Sea is at serious risk, scientists are warning, with illegal fishing reducing fish stocks and placing the marine environment under increasing strain.
New analysis by UC Santa Barbara researchers has found that the kelp’s structure may be more important than the food it provides. Using over a decade’s worth of data from the Santa Barbara Coastal Long Term Ecological Research project, supported by the National Science Foundation, the investigat ...
Species living in coastal regions could face a significant future threat from reduced levels of oxygen in the marine environment, according to research published in Scientific Reports.
A new initiative is exchanging the alleviation of national debt for government initiatives aimed at preserving marine ecosystems.
When British naturalist Charles Darwin traveled to the Galapagos Islands in 1835, he took notice of the giant kelp forests ringing the islands. He believed that if those forests were destroyed, a significant number of species would be lost. These underwater ecosystems, Darwin believed, could be ...
Devil rays (Mobula mobular) are a majestic presence in the oceans, and encounters in the wild are a once-in-a-lifetime experience for many divers. Soon, however, even these brief encounters may fade.
The only fish known to hunt with wolf pack moves may not be true team players, just lemon-yellow me-firsts. Yellow saddle goatfish (Parupeneus cyclostomus) do more than school together as they dart over Indo-Pacific coral reefs. Like wolves, the goatfish take different roles in a pursuit.
New insights into animal patterns around extinct submarine volcanoes could inform measures used to protect marine ecosystems from human activities, such as trawling and deep-sea mining. These insights have been published today in Nature Scientific Reports, and show that the structure of marine l ...
Lake Chad, once one of Africa’s largest lakes, is in distress. The lake is shared by Cameroon, Chad, Niger and Nigeria; its basin – which extends as far as Algeria, Libya, and Sudan – offers a lifeline to nearly 40 million people.
It's the biggest shark — and the biggest fish — in the sea, often found roaming in warm waters around the globe with its huge mouth agape in search of dinner.
Times are tough for 31 of Michigan's 45 varieties of freshwater mussels. Sporting evocative names like wavy-rayed lampmussel and round pigtoe, these residents of the state's rivers are imperiled by habitat disruption and pollution and are also threatened by climate change.
The Seychelles has floated a plan to deepen its marine conservation efforts in return for a groundbreaking sovereign debt deal backed by funds including the Leonardo DiCaprio Foundation.
Why are scientists turning to aerial images to monitor the health of ecosystems found beneath the ocean’s surface? Coral reefs support millions of species ranging from single-celled algae to sharks and sea turtles. However, this diversity, coupled with the scattered and often remote (underwater) ...
Tasmania faces an ecological disaster that could devastate $185 million fisheries, with modelling showing a third of its east coast reefs will be lifeless within a few years.
The phrase "Save the Whales" will take on new importance for Canadian fishermen in 2018 as the Department of Fisheries and Oceans introduces mandatory reporting for interactions Canada's commercial fishing fleets have with marine mammals.
The global seafood trade is estimated to be worth about $140 billion. However, the health of fisheries and ocean ecosystems are increasingly being put at risk by overfishing, as well as illegal, unreported or unregulated fishing. In 2016, such practices accounted for one quarter of all fish caught.
It’s hard to adequately describe the importance of conch to the Bahamas. Conchs are ingrained in the culture; there are conch festivals, conch homecomings and conch-cracking competitions. On the Bahamian coat of arms, a queen conch takes pride of place, sitting right at the top.
The number of rare shellfish reefs off the coast of Australia has declined by up to 99 percent since British colonization, a new study revealed on Thursday.
"When you're on top of the water, and you just see the fin, I think it's more scary because it's the unknown. But when you are underwater and you see the shark it is much less scary. When I saw him for the first time, he was bigger than expected and so much more colourful."
As New York’s American Museum of Natural History digitizes its vast collections, it wants to use that historic data to help scientists understand how imperiled ecosystems are changing today. But coders at a recent hackathon discovered just how big a challenge that is.
We’re at a critical moment for the health of the world’s oceans. While people the world over pursue individual resolutions for 2018, we also must think about our collective impact—by acknowledging that man-made plastic waste is the greatest threat to our oceans and the animals that live there.
Birds might sit on their eggs to keep them warm until they hatch, but deep-sea fish called skates have found a less boring and time-consuming way to incubate their eggs — they lay them near hot hydrothermal vents on the sea floor.
“The oceans cover 70% of the surface of our planet, and yet they are still the least explored,” says Sir David Attenborough in the opening sequence of the recent BBC documentary series Blue Planet II. “Hidden beneath the waves, there are creatures beyond our imagination.” Yet while the program r ...
European legislators have voted overwhelmingly for a resolution that advocates halting efforts to mine the seabed for minerals – until the environmental consequences of industrialization of the deep ocean can be determined.
A team of divers from IMAS and the citizen science project Reef Life Survey (RLS) have discovered a new population of what is believed to be the world's rarest fish.
Our growing demand for resources has prompted companies to turn to mining in the depths of the oceans. With help from robots, a team of German scientists is racing to map the potential environmental damage.
Reef monitoring around the world has revealed that heat-stress-related coral bleaching is now happening so frequently that there is insufficient time to recover in between events. A sharp rise in ocean acidification will further aggravate the situation. Parallels from the geological past show th ...
A recent report tracking the health of the Mesoamerican Reef indicates that conservation efforts might be helping to turn the tide for the reef itself and the people who depend on it.
The battle to save the world’s coral reefs is at “make or break point”, and countries that host them have a special responsibility to take a leadership role by limiting greenhouse gas emissions, plastic pollution and impacts from agriculture, the head of the United Nations Environment Programme ...
If you've ever wondered what the vegetarian sharks in Finding Nemo actually ate, you might ask the bonnethead shark. These little sharks don’t actually survive on nothing but plants, but they do eat quite a lot of seagrass. And they aren’t just swallowing plants and pooping them out undigested, ...
A new model predicts that as ocean temperatures rise, carbon-storing sea grass may disappear and even go extinct in some ecosystems.
Freezing temperatures, crushing pressure and total darkness make the deepest parts of the world's oceans inhospitable places to live. Still, they are not without — often weird— life.
Over the last three decades, half of the planet’s coral has died under rising water temperatures and ocean acidification. To address this global crisis, global environmental leaders and countries have named this the International Year of the Reef.
It's kind of shocking that right whales should be so-called because they were the "right whale to kill". Slow surface-dwellers that were curious of humans and boats - their numbers started to tank long before the modern era of commercial whaling, post-1900.
Aside from jeopardising the health of marine life, incrasing numbers of low-oxygen spots could trigger the release of dangerous greenhouse gases up to 300 times more powerful than carbon dioxide.
Pteropods may look otherworldly, but they are a real and threatened species of minuscule marine snail whose appearance in Homer author Nancy Lord’s new novel “pH” makes the book not science fiction, but an example of science in fiction.
The first resident pod of bottlenose dolphins has been discovered off the south-west coast of England. Experts used thousands of sightings and photos to identify a group of 28 individuals living year-round off the coasts of Cornwall, Devon and Dorset.
The amount of carbon in our planet's oceans has varied slowly over the ages. But 31 times in the past 542 million years the carbon level has deviated either much more than normal or much faster than usual (dots in main graph).
The Everglades acted as a natural shock absorber that softened Hurricane Irma's impact. But being the on frontline of the most powerful Atlantic storm on record took its toll, threatening a unique wetland wilderness.
The sheer size and diversity of habitats that make up the big beautiful Great Barrier Reef (GBR), also represent an extreme challenge to monitor and manage. To boost the extent and regularity of information about key vital signs, individuals and communities are joining a growing movement of citi ...
When a North Atlantic right whale swims into a submerged net or rope, it panics and rolls. This makes everything worse, tangling the fishing gear in the animal’s mouth or tightly wrapping it around the flippers or tail.
A new study led by Oregon State University (OSU) graduate student Sarah Seabrook that uses scientific data and samples from Ocean Networks Canada (ONC) focuses on the extent, variability, and complexity of species—from microbes to tubeworms—found at deep-sea cold seep habitats along the Cascadia ...
How is sea-level rise going to change coastal ecosystems? Will corals and seagrass drown? Will mangroves be swamped? Until significant sea-level rise takes place, these questions are hard to answer. But back in 2007 a large earthquake in the Solomon Islands gave scientists an unusual chance to m ...
Astounding footage of Galapagos sea lions hunting was perhaps the highlight of the latest Blue Planet II. For the first time ever, these marine mammals were filmed working as a pack to drive tuna fish in to shallow, rocky waters where they could be caught. Yellowfin tuna are typically able to ou ...
People will need to be persuaded to eat new types of seafood if we are to extract more food from the oceans and feed growing human populations, according to fishing industry experts.
A recent report shows rising CO2 levels in the atmosphere are about to make the world’s oceans uninhabitable for many sea creatures, threatening entire ocean ecosystems. What can be done?
‘The oceans cover 70% of the surface of our planet, and yet they are still the least explored,’ says Sir David Attenborough in the opening sequence of the recent BBC documentary series Blue Planet II.
Canada has protected a record stretch of ocean. These 800 beluga whales approve. After almost a decade of planning, Canada has officially established its largest marine conservation area to date. The vast stretch of pristine ocean has been called the "Serengeti of the Arctic", and it's home to 2 ...
The oceans cover 70% of the surface of our planet, and yet they are still the least explored,” says Sir David Attenborough in the opening sequence of the recent BBC documentary series Blue Planet II. “Hidden beneath the waves, there are creatures beyond our imagination.” Yet while the programme ...