Algae blooms are expected to devastate lakes in the next decades, as a direct result of climate change and warming waters. This could be potentially devastating for local ecosystems and those that depend on these freshwater reservoirs.
Following the 1964 Alaskan earthquake, marine-dwelling three-spine stickleback fish had to rapidly evolve to live in freshwater ponds. This sheds light on how other species may be impacted by climate change.
How did skates and rays develop their unique wing-like fins? Researchers from the University of Chicago recently revealed the animals altered their body structure to live on the ocean floor, and to do so they relied on repurposed genes.
High levels of mercury have been detected in Florida's Indian River dolphins and the areas local human residents because they both consume the same seafood.
More than 17,000 marine species, including whales, sharks, rays and fish, remain threatened due to a lack of marine protected areas.
A recent study has shown that fish respond to stress with a slight body temperature increase.
Can certain species of fish – especially specias that all seem to look alike – distinguish between friend from a foe? Apparantly so, say surprised reaserchers who say recongition comes down to small but distinct facial coloring patterns.
A widespread parasite known to infect salmon and trout is actually a "micro jellyfish." This may change the way scientists define animals.
Small fish dominated oceans following a mass extinction 359 million years ago. This suggests small fish actually have an evolutionary advantage over larger marine predators.
Three new catfish were recently discovered in South America. Based on their characteristics, including particularly long snouts, researchers were forced to create a new genus.
To adapt to changing environments, fish have evolved with an enzyme researchers refer to as Cyp27c1, which is closely linked to vitamin A and known to promote good vision in low light.
Dolly Varden, an Alaskan trout species, are able to retire from migrating each year after growing big enough to store and utilize fat reserves. This is the only known species that partakes in such a retirement.
Captured damselfish release a chemical distress call that confuses their attackers by calling other predators to the area. The ensuing competition buys them enough time to flee.
Northern Atlantic cod are making a comeback off the coast of Newfoundland and Labrador, Canada. This proves that with proper conservation measures, population recovery is possible.
Deciduous trees along rivers and streams provide protection from damaging solar radiation and valuable foliage every autumn. Fallen leaves act as a vital food source for insects, and keeping insect populations healthy could ultimately help river ecosystems combat climate change, researchers reveal in a new study.