Biologists show how the evolution of physical traits can influence behavior
For many male African cichlid fish, the best way to attract a mate is to build a really nice pit or sand castle on a lake bottom.
Fishes' innate food choice could change with the environment
The fact that fish choose their food based on what colours they can see, as opposed to how it tastes, is an inherited trait that could have implications for the evolution in the animal kingdom, new Deakin ...
Research finds reef fish can adjust for gender as oceans warm
Using a multigenerational experiment UTS research has shown for the first time that when reef fish parents develop from early life at elevated temperatures they can adjust their offspring gender through non-genetic ...
Twice the coral trout in Great Barrier Reef protected zones
Coral trout in protected 'green zones' are not only bigger and more abundant than those in fished 'blue zones' of the Great Barrier Reef Marine Park, but they are also better able to cope with cyclone damage, ...
The Salton Sea: a time-bomb amid California drought
At first sight the Salton Sea looks putrid, with dead fish scattered among patches of fetid water in a vast salty lake in the middle of the Californian desert.
Coorong fish hedge their bets for survival
Analysis of the ear bones of the River Murray estuarine fish black bream has revealed how these fish 'hedge their bets' for population survival.
A mile deep, ocean fish facing health impacts from human pollution
Deep-water marine fish living on the continental slopes at depths from 2,000 feet to one mile have liver pathologies, tumors and other health problems that may be linked to human-caused pollution, one of ...
New study shows net value of seagrass to fishing in the Mediterranean
Seagrass meadows could be worth around €190 million every year to commercial and recreational fishing in the Mediterranean according to a new study by marine scientists.
Catching dead satellites with nets
One of humanity's oldest technologies, the humble fishing net, may yet find a new role in space: bringing down dead satellites.
Male fish dig pits and build sand castles at the bottom of Lake Malawi to attract females
New research shows that courtship rituals evolve very fast in cichlid fish in Lake Malawi. Whenever species evolve to feed at different depths, their courtship evolves as well. In the shallows where the light is good, males ...
Gulf of Mexico marine food web changes over the decades
Scientists in the Gulf of Mexico now have a better understanding of how naturally-occurring climate cycles—as well as human activities—can trigger widespread ecosystem changes that ripple through the ...
Doubling fish biomass without increasing food supply or food quality
To increase the biomass of fish, contemporary ecological theory predicts that either the amount of food or the quality of the food has to increase. In a recent experiment, researchers at Umeå University ...
New research reveals low-oxygen impacts on West Coast groundfish
When low-oxygen "dead zones" began appearing off the Oregon Coast in the early 2000's, photos of the ocean floor revealed bottom-dwelling crabs that could not escape the suffocating conditions and died by ...
Choosy fish females may boost biodiversity
A new study offers insight into a process that could lead one species to diverge into two, researchers report in the American Naturalist.