These are organized by a classification scheme developed exclusively for Cosma. More…
aquatic : growing or living in or frequenting water — Webster
Aquatic ecosystem An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems. — Wikipedia
Marine biology is the scientific study of marine life, organisms in the sea. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy.
A large proportion of all life on Earth lives in the ocean. The exact size of this large proportion is unknown, since many ocean species are still to be discovered. The ocean is a complex three-dimensional world covering approximately 71% of the Earth’s surface. The habitats studied in marine biology include everything from the tiny layers of surface water in which organisms and abiotic items may be trapped in surface tension between the ocean and atmosphere, to the depths of the oceanic trenches, sometimes 10,000 meters or more beneath the surface of the ocean. Specific habitats include coral reefs, kelp forests, seagrass meadows, the surrounds of seamounts and thermal vents, tidepools, muddy, sandy and rocky bottoms, and the open ocean (pelagic) zone, where solid objects are rare and the surface of the water is the only visible boundary. The organisms studied range from microscopic phytoplankton and zooplankton to huge cetaceans (whales) 25–32 meters (82–105 feet) in length. Marine ecology is the study of how marine organisms interact with each other and the environment. — Wikipedia
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Sea Life News -- ScienceDaily Current events articles in marine biology and science. From beached whales to coral reef bleaching, learn what is happening in today's oceans.
Fish give up the fight after coral bleaching
on October 22, 2018 at 4:28 pm
Researchers found that when water temperatures heat up for corals, fish 'tempers' cool down, providing the first clear evidence of coral bleaching serving as a trigger for rapid change in reef fish behavior. Researchers show how the iconic butterflyfish, considered to be sensitive indicators of reef health, can offer an early warning sign that reef fish populations are in trouble. […]
Estimating the feeding habits of corals may offer...
on October 18, 2018 at 6:11 pm
Researchers have found that corals living in more productive waters take advantage of the increased food availability. The findings reevaluate scientific understanding of how corals survive and could aid predictions on coral recovery in the face of climate change. […]
Piranha-like specimen, 150 million years old, is...
on October 18, 2018 at 6:11 pm
Researchers have described a remarkable new species of fish that lived in the sea about 150 million years ago in the time of the dinosaurs. The new species of bony fish had teeth like a piranha, which the researchers suggest they used as piranhas do: to bite off chunks of flesh from other fish. […]
Bioceramics power the mantis shrimp's famous punch
on October 18, 2018 at 6:11 pm
Researchers in Singapore can now explain what gives the mantis shrimp, a marine crustacean that hunts by battering its prey with its club-like appendages, the most powerful punch in the animal kingdom. They show that a saddle-shaped structure in the mantis shrimp's limbs, which acts like a spring to store and then release energy, is composed of two layers made of different materials. […]
Life on the floor of the Arctic Ocean, with rigor...
on October 17, 2018 at 6:10 pm
In an extensive and rigorous study of animal life on the Central Arctic Ocean floor, researchers have shown that water depth and food availability influence the species composition, density, and biomass of benthic communities. […]
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Research finds NJ numerical nutrient criterion...
on October 22, 2018 at 4:49 pm
A new way of measuring the relative habitability of freshwater environments for fish and aquatic insects suggests that New Jersey's water monitoring and treatment standards could use a boost. […]
Why a wetland might not be wet
on October 18, 2018 at 1:30 pm
Lake Eyre is one of Australia's most iconic wetlands, home to thousands of waterbirds that migrate from all over Australia and the world. But it is often dry for decades between floods. […]
Biodiversity can also destabilize ecosystems
on October 18, 2018 at 12:20 pm
Ecosystems have a variety of benefits to humans, including food, water and other resources, as well as recreational space. It is therefore important that these systems remain functional and stable—especially in view of climate change and environmental pollution. Ecologists at the University of Zurich and the Swiss Federal Institute of Aquatic Science and Technology (Eawag) have now examined the factors that influence this stability in a unique and comprehensive experiment. […]
Could cutting CO2 emissions provide water during...
on October 16, 2018 at 4:25 pm
Power plants provide homes and businesses with electricity on a daily basis. But plants also consume a daily essential: Water. In fact, the US electrical power industry uses nearly half of all water in the country. Power plants use water for cooling and creating steam to turn turbines, which then generate electricity. But during droughts and water shortages, these plants can put a strain on the entire water system. […]
Irrigating vegetables with wastewater in African...
on October 12, 2018 at 2:10 pm
Urban farmers growing vegetables to feed millions of people in Africa's ever-growing cities could unwittingly be helping to spread disease by irrigating crops with wastewater, a new study reveals. […]