Two groups of tiny, delicate marine organisms, sea butterflies and sea angels, were found to be surprisingly resilient--having survived dramatic global climate change and Earth's most recent mass extinction event 66 million years ago, according to research published this week in the Proceedings of the National Academy of Sciences.
No-take fishing zones on their own act as valuable sources of fish for neighbouring reefs. These areas support more fish, which then produce even greater numbers of baby fish. But, just how many babies survive and where they end up varies greatly from year to year. Multiple smaller reserves instead of one large reserve can ensure a stable supply of fish.
Increasing fishing too quickly can cause coral reef ecosystems to collapse, according to new research led by the University of Colorado Boulder.
Researchers from the University of Tsukuba and ETH Zurich have found that marine bacteria exploit resource patches efficiently by switching between attached and planktonic lifestyles, and fine-tuning the time spent on patches depending on their quality. Bacteria stayed longer on higher-quality patches, as predicted by patch use theory. Future studies in this area could help to predict the role of marine bacteria in the global carbon cycle.
Heatwaves in the world's oceans have become over 20 times more frequent due to human influence. This is what researchers from the Oeschger Centre for Climate Research at the University of Bern are now able to prove. Marine heatwaves destroy ecosystems and damage fisheries.
A team of biologists led by Craig Albertson and Ph.D. student Chaise Gilbert at the University of Massachusetts Amherst report this week on their comparison between museum collections of cichlid fishes collected before a dam was closed in 1984 on the Tocantins River in the Amazon and contemporary specimens taken from the Tucuruí Reservoir by fishermen 34 years later.
A novel ribbon worm species was discovered as part of the Smithsonian Tropical Research Institute's Training in Tropical Taxonomy program in the Bocas del Toro archipelago in Panama
Researchers at the Institut national de la recherche scientifique (INRS), in collaboration with American scientists, have uncovered a new parvovirus strategy for reaching the cell nucleus which is their site of replication. This new method of entry is a good example of host-driven evolution. Their results were published in the journal Proceedings of the National Academy of Sciences of the United States of America.
Upcoming 5G wireless networks that will provide faster cell phone service may lead to inaccurate weather forecasts, according to a Rutgers study on a controversial issue that has created anxiety among meteorologists.
Scientists used single-cell genomics to show that two groups of poorly known marine protists routinely ingest viruses. They hypothesize that this serves to absorb phosphorus and nitrogen - that is, using viruses as food. This discovery has important implications for our understanding of oceanic food webs and carbon cycles.