Census of Marine Life

FEATURES

Video
As 10 years of intensive research draw to a close, the Census of Marine Life has released the most comprehensive inventory of life in the ocean to date. This landmark collection of scientific papers...
The ocean is home to a phenomenal diversity of marine organisms. They have...
This transparent cockatoo squid ( Leachia sp.), also known as a glass squid,...
Now that the Census of Marine Life is over, we’re checking in with some of the...

LATEST POSTS

This brilliant red octopus ( Benthoctopus sp. ) was photographed at more than 8,800 feet (about 2,700 meters) in Alaminos Canyon in the Gulf of Mexico. See more photos of wild creatures encountered during the Census of Marine...
This rarely-seen smalleyed rabbitfish ( Hydrolagus affinis ), belonging to...
This new species of deep-water sea cucumber ( Elpidia belyaevi ) was...

LEARN MORE

Did you know that over 17,000 species thrive in the deep sea where no light penetrates the ocean waves? Or that an old...

The Ocean Blog

This brilliant red octopus ( Benthoctopus sp. ) was photographed at more than 8,800 feet (about 2,700 meters) in Alaminos Canyon in the Gulf of Mexico. See more photos of wild creatures encountered...
This jelly’s red color provides camouflage in the deep ocean. Red light rarely reaches those depths, and most deep-sea animals have lost the ability to see red. The long, complex tentacles of this...
Holozooplankton are animals that live adrift in the ocean waves for their entire lives. The researchers who took part in the Census of Marine Zooplankton, a project of the Census of Marine Life ,...
Census researchers manipulate the robotic arm of the remotely operated vehicle (ROV) Quest to study shrimp and other deep sea life forms. They discovered the creatures at a hydrothermal vent 3...
In a decade long project, which ended in October 2010, scientists with the Census of Marine Life traveled the world cataloging the ocean’s life forms. From Australia to China to the Gulf of Mexico...
This colony of Rosacea may look like a single jellyfish, but it is actually a large group of smaller siphonophores clustered and living together. In fact, the zooids (individual siphonophores living...
This copepod ( Gaussia princeps ) was collected deeper than 1000 meters in the Sargasso Sea by Census of Marine Zooplankton (CMarZ) researchers in April 2006, as part of the 10-year Census of Marine...
The ocean covers more than 70 percent of the Earth and is essential to all life. But forces of change, from overfishing to climate change, are affecting the ocean and humanity's relationship with it...
Scientists believe orange roughy ( Hoplostethus atlanticus ) live longer than 150 years! Here, Census of Marine Life researchers used an underwater camera to photograph this group of orange roughy...
From the open ocean to coastal tidepools, from the fantastic to the familiar, a mosaic of marine habitats provides homes, feeding and spawning grounds, and seasonal destinations for ocean species...
Like this ctenophore ( Aulococtena acuminata ), many animals that live in the midwater zone are red—making them almost invisible in the dim blue light that filters down from the sea surface. This...
A fringe of short tentacles surrounds the flattened bell of this tiny, transparent jellyfish ( Halicreas minimum ), which can be found at depths up to 984 feet (300 meters). But it would be hard to...
This beautiful open ocean microbe is a type of large amoeba called an acantharian. Microbes account for over 90 percent of the biomass in the ocean -- they are teeming with microscopic bacteria,...
Did you know that over 17,000 species thrive in the deep sea where no light penetrates the ocean waves? Or that an old restaurant menu can teach us about the history of fish populations? Or that...
Expedition data went to the Arctic Ocean Diversity database of the Census of Marine Life to establish a baseline that will help to document change in the poorly known Arctic Ocean. Scientist Kevin...
This transparent cockatoo squid ( Leachia sp.), also known as a glass squid, lives in the depths of the ocean and has many adaptations to help it survive there. It retains ammonia solutions inside...
This bright purple sea star is a new species found by the Census of Coral Reef Ecosystems , a project of the Census of Marine Life. This particular specimen was seen on the reefs of the French...
As 10 years of intensive research draw to a close, the Census of Marine Life has released the most comprehensive inventory of life in the ocean to date. This landmark collection of scientific papers...
Subscribe to Census of Marine Life