Cold water released from Lake Shasta into the Sacramento River to benefit endangered salmon can be detrimental to young green sturgeon, a threatened species adapted to warmer water. But scientists at UC Santa Cruz and the National Marine Fisheries Service have found a way to minimize this apparent conflict through a water management strategy that benefits both species, while also meeting the needs of agricultural water users downstream.
An unprecedented survey has revealed the loss of about 85 percent of historical tidal wetlands in California, Oregon, and Washington. The report, published today in PLOS ONE, also highlights forgotten estuary acreage that might now be targeted for restoration.
Evolutionary biologists from Konstanz analyze the role of microRNAs in the evolution of new species.
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 Aug. 14, 2019 in the open-access journal PLOS ONE by David Gruber from the City University of New York, USA, and colleagues.
Asian carp are capable of surviving and growing in much larger portions of Lake Michigan than scientists previously believed and present a high risk of becoming established, according to a new modeling study from University of Michigan researchers and their colleagues.
Invasive silver carp have been moving north toward the Great Lakes since their accidental release in the 1970s. The large filter-feeding fish, which are known to jump from the water and wallop anglers, threaten aquatic food webs as well as the $7 billion Great Lakes fishery. But, for the past decade, the invading front hasn't moved past Kankakee. A new study suggests that Chicago's water pollution may be a contributing to this lack of movement.
Green turtles are more likely to swallow plastic that resembles their natural diet of sea grass, new research suggests.
Scientists from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB) and international colleagues have now quantified the global decline of big freshwater animals: from 1970 to 2012, global populations of freshwater megafauna declined by 88% -- twice the loss of vertebrate populations on land or in the ocean. Large fish species are particularly affected.
Scientists are increasingly warning that prescription drugs can affect wildlife and ecosystems when they find their way into the environment. In a new Environmental Toxicology and Chemistry study, investigators found that the anxiety and depression drug Escitalopram -- at concentrations similar to those measured in the environment -- can inhibit fish foraging and eating behavior.
After years of federally mandated protection, scientists see signs that this once ecologically fertile area known as the Hawaiian-Emperor Seamount Chain is making a comeback.