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UrduHigh levels of pollutants, such as industrial fluids and mercury, may have accumulated in the blubber and skin of one of the largest coastal populations of dolphins in Europe, a study in Scientific Reports indicates. Mercury concentrations found in 82…
Tag: MARINE/FRESHWATER BIOLOGY
The ‘pathobiome’ — a new understanding of disease
Cefas and University of Exeter scientists have presented a novel concept describing the complex microbial interactions that lead to disease in plants, animals and humans. Microbial organisms and viruses cause many diseases of plants and animals. They can also help…
Malaria could be felled by an Antarctic sea sponge
The frigid waters of the Antarctic may yield a treatment for a deadly disease that affects populations in some of the hottest places on earth. Current medications for that scourge — malaria — are becoming less effective as drug resistance…
‘Planting water’ is possible — against aridity and droughts
The water regime of a landscape commutes more and more between the extremes drought or flooding. The type of vegetation and land use plays an important role in water retention and runoff. Together with scientists from the UK and the…
A new species of electric eel produces the highest voltage discharge of any known animal
An article shows that 3 species of electric eel exist, not just one as previously described, and tha
Smithsonian scientists triple number of known electric eel species
Study also documents most powerful biologically produced electric shock and strengthens case for pre
Climate change could bring short-term gain, long-term pain for loggerhead turtles
TALLAHASSEE, Fla. — An overwhelming scientific consensus affirms that for thousands of species across the globe, climate change is an immediate and existential threat. For the loggerhead turtle, whose vast range extends from the chilly shores of Newfoundland to the…
Cataloguing the human impact on the world’s oceans
Norwegian researcher awarded European Research Council grant to explore the ocean’s many woes
Breakdown in coral spawning places species at risk of extinction
Synchronized coral spawning has become erratic, endangering the long-term survival of coral species,
Kīlauea lava fuels phytoplankton bloom off Hawai’i Island
When Kīlauea Volcano erupted in 2018, it injected millions of cubic feet of molten lava into the nutrient-poor waters off the Big Island of Hawai’i. The lava-impacted seawater contained high concentrations of nutrients that stimulated phytoplankton growth, resulting in an…
Kilauea eruption fosters algae bloom in North Pacific Ocean
The massive 2018 eruption set off an unusual effect: An algae super bloom that stretched for miles a
New study tracks sulfur-based metabolism in the open ocean
One of the planet’s most active ecosystems is one most people rarely encounter and scientists are only starting to explore. The open ocean contains tiny organisms — phytoplankton — that perform half the photosynthesis on Earth, helping generate oxygen for…
New viruses discovered in endangered wild Pacific salmon populations
Three new viruses — including one from a group of viruses never before shown to infect fish — have
Revolutionizing water quality monitoring for our rivers and reef
New, lower-cost help may soon be on the way to help manage one of the biggest threats facing the Great Barrier Reef. That threat is pollution from land making its way downstream by way of the many rivers and streams…
Corals take control of nitrogen recycling
Corals are shown to recycle their own waste ammonium using a surprising source of glucose–a finding that reveals more about the relationship between corals and their symbiotic algae. Symbiosis between corals and algae provides the backbone for building coral reefs,…
Sexual selection influences the evolution of lamprey pheromones
In “Intra- and Interspecific Variation in Production of Bile Acids that Act As Sex Pheromones in Lampreys,” published in Physiological and Biochemical Zoology , Tyler J. Buchinger and others find that sexual selection may play a role in the evolution…
Tropical sea snake uses its head to ‘breathe’
Scientists describe complex oxygen absorption system
Remora-inspired suction disk mimics fish’s adhesion ability, offers evolutionary insight
Remora fishes are famed hitchhikers of the marine world, possessing high-powered suction disks on the back of their head for attaching themselves in torpedo-like fashion to larger hosts that can provide food and safety — from whales and sharks to…
The bigger picture behind marine pollution
The first volume of a new book series on marine ecology explores marine pollution and why it is a ca
UCI scientist identifies cone snail’s strike as one of the quickest in the animal kingdom
Irvine, Calif., Aug. 30, 2019 : With the use of ultra-high-speed videography, Ecology and Evolutionary Biology Associate Professor Emanuel Azizi and colleagues from Occidental College Los Angeles have shed light on the hunting mechanism of the cone snail Conus catus.…
Illinois engineer continues to make waves in water desalination
For the past several years, University of Illinois researcher Kyle Smith has proven his growing expertise in the field of water desalination, with a range of research results that could address the immediate need to combat diminishing clean water sources…
Extreme mangrove corals found on the Great Barrier Reef
The first documented discovery of ‘extreme corals’ in mangrove lagoons around Australia’s Great Barr
UCI-led study: Plankton are more resilient to nutrient stress than previously thought
Interdisciplinary team produces first high-resolution map of ocean surface phosphate
Climate change, human activity lead to nearshore coral growth decline
Declining growth of Mesoamerican Barrier Reef System corals predicts trouble for worldwide reefs
A gentle grip on gelatinous creatures
New ultra-soft underwater gripper safely catches and releases jellyfish without damage
HKBU biologists discover and name new fireworm species in Hong Kong waters
A group of biologists from Hong Kong Baptist University (HKBU) have discovered a new fireworm species in Hong Kong waters and named it Chloeia bimaculata . It is the fourth named species to be added to the fireworm genus Chloeia…
Glacier-fed rivers may consume atmospheric carbon dioxide
Study shows chemical weathering is the cause of CO2 consumption in glacier-fed freshwater systems
New threat from ocean acidification emerges in the Southern Ocean
Ocean acidification is having a negative impact on diatoms, a key group of microscopic marine organi
How the herring adapted to the light environment in the Baltic Sea
The evolutionary process that occurs when a species colonizes a new environment provides an opportunity to explore the mechanisms underlying genetic adaptation, which is essential knowledge for understanding evolution and the maintenance of biodiversity. An international team of scientists, led…
Sea snail compound reduces cancer risk
Potential for new drug to prevent colorectal cancer tumors
Study finds big increase in ocean carbon dioxide absorption along West Antarctic Peninsula
Long-term measurements reveal links between climate change and ocean carbon dynamics
Beaver reintroduction key to solving freshwater biodiversity crisis
Reintroducing beavers to their native habitat is an important step towards solving the freshwater biodiversity crisis, according to experts at the University of Stirling. New research from the Faculty of Natural Sciences has provided further support to previous work that…
Are we really protecting rivers from pollution? It’s hard to say, and that’s a problem
More public and private resources than ever are being directed to protecting and preserving aquatic ecosystems and watersheds. Whether mandated for land development, farming or in response to the growing severity and number of natural disasters – scientists from the…
Bloodsucker discovered: First North American medicinal leech described in over 40 years
Museum collections reveal the new leech has hidden in plain sight for decades
Genetic redundancy aids competition among bacteria in symbiosis with squid
The molecular mechanism used by many bacteria to kill neighboring cells has redundancy built into its genetic makeup, which could allow for the mechanism to be expressed in different environments. Some strains of luminescent bacteria that compete to colonize the…
Sunscreens release metals and nutrients into seawater
Beachgoers are becoming increasingly aware of the potentially harmful effects UV filters from sunscreens can have on coral and other marine organisms when the protective lotions wash off their bodies into the ocean. Now, researchers have studied how sunscreens release…
Scientists make first observation of fish schooling using bioluminescent flashes
Divers encounter school of thousands of flashlight fish in Solomon Islands
Microplastic drifting down with the snow
In the Alps and the Arctic, experts confirm the presence of plastic in snow
Improved sewage treatment has increased biodiversity over past 30 years
Study of long-term data for river shows increase in freshwater invertebrates
New mapping reveals lost west coast estuary habitat
Research highlights potential for restoration of important habitats
Flashlight fish use bioluminescence to school at night
Flashlight fish use their bioluminescent organs to school at night – and only a few need actively flash to maintain the group, according to a study published August 14, 2019 in the open-access journal PLOS ONE by David Gruber from…
Fishing leads to investigation of environmental changes in waterways
A fisherman’s curiosity led to identification of the correlation between microbial communities in recreational freshwater locales and seasonal environmental changes, according to a team of researchers from Penn State. Zachary Weagly, a 2018 graduate of Penn State Berks and an…
Rapid evolution: New findings on its molecular mechanisms
The mechanisms by which new species arise are still not fully understood. What are the evolutionary processes that drive the evolution of new species? Evolutionary biologists traditionally assumed that geographical barriers between animal populations play a decisive role (allopatric speciation):…