Oceanography

PHOTOLAB

Underwater world

Algal reefs growing on volcanic seamounds were named "Coraline Hills"

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Biodiversity

Coral reefs shrinking in Abrolhos

Coral reefs off the coast of Bahia have shrunk by 28% over the last 160 years

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Video

Fishes and corals also suffer with climate change

Altered ocean currents carry less of the microorganisms which feed deep and cold water corals. Closer to the surface, rising temperatures pose energetic challenges for fishes | 3'02

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OCEANOGRAPHY

A refuge for giant algae

Southern coast of Chile appears to be a safe haven for giant kelp forests

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BIOGEOGRAPHY

Water from the Amazon River separates Brazilian and Caribbean marine species

A sediment plume from the river penetrates thousands of kilometers into the Atlantic, home to its own fauna that differs to other regions of the ocean

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Global Warming

Oceans warmer and noisier thanks to climate change

By the end of the century, oceans will be warmer and noisier

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Endurance

Intact under the ice of Antarctica

Norwegian ship Endurance, which sank in Antarctica in November 1915, found

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Naval engineering

Robots on the high seas

Autonomous boat and drone used to monitor oil leaks at offshore oil platforms

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geography

Sea level controls volcano activity

The sea level may control the activity of many volcanoes on the planet

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Biodiversity

Transplanting microorganisms reduces coral death

It may be possible to reduce coral death caused by ocean warming associated with climate change

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Oceanography

The Saga of the Paratethys

The world's largest lake formed 12 million years ago and then disappeared, giving rise to the Caspian and Black Seas

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Photolab

Invisible message

When stimulated with ultraviolet light, the cock-eyed squid (Histioteuthis sp.) becomes covered with bright red dots

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Paleontology

The near extinction of sharks

Ocean sediment fossil records suggest that today's sharks are descended from the few survivors of a mass extinction that wiped out nearly all the shark species that lived in the early Miocene Epoch

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video

These nurseries can help to recover coral

Culture of damaged fragments onto 3D-printed cribs is a promising technology for restoring threatened reefs | 4'50

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Marine biology

Coral nurseries

Mobile cultivation of damaged coral in precast frames is a promising technology for rehabilitating reefs

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Oceanography

Deep heating

Sensors installed up to 4,700 meters below the ocean’s surface record increased temperatures in abyssal regions of the South Atlantic

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UFRJ – 100 YEARS

Masters of challenge

COPPE, an engineering institute best known for its marine engineering, energy, and sustainability research, is now helping to tackle COVID-19

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Record

In space and the deep sea

American geologist, oceanographer and former astronaut Kathy Sullivan, 68, is the first person to walk in space and to dive to the deepest point of the ocean

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Oceanography

Revelations from a submerged archipelago

Beaches, rivers, and mangroves covered a mountain range that was above sea level 40 million years ago

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Retrospect

A coveted territory

A treaty signed 60 years ago governs occupation and scientific research in Antarctica

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Paleoclimate

Storms in the Ice Age

In the last glacial period, torrential rainfall in what is now Brazil was mostly concentrated in the Northeast and the Amazon

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Photolab

Underwater nursery

The Okenia polycerelloides sea slug reproduces in the pantry

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Oceanography

Revelations from a submerged archipelago

Beaches, rivers, and mangroves covered a mountain range that was above sea level 40 million years ago

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Biology

Giants with their own light source

Researchers have now isolated the substances involved in Dosidicus gigas bioluminescence

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Biology

The changing venom of a stingray

Stingray venom changes as the fish mature

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Video

How to protect sharks

Research group tracks oceanic sharks and maps them onto fishing zones in order to propose conservation areas | 3'40"

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Oceanography

Sources of methane

Two thousand craters releasing the greenhouse gas found off the Brazilian coast

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Oceanography

The progressive destruction of Brazilian beaches

Loss or accumulation of sand and mud has altered 60% of the Brazilian coastline

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Infrastructure

Floating laboratory

Brazilian Navy survey vessel to receive R$75 million in funding under new agreement

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ECOLOGY

Underwater Forest

Coral reefs at the mouth of the Amazon River may be larger, deeper, and more complex than expected

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