MarineBio Conservation SocietyFisheries News   :: ScienceDaily

Large-mouthed fish was top predator after mass extinction

Wed, 26 Jul 2017 10:29:29 EDT ~ The food chains recovered more rapidly than previously assumed after Earth's most devastating mass extinction event about 252 million years ago as demonstrated by the fossilized skull of a large predatory fish called Birgeria americana discovered by paleontologists from the University of Zurich in the desert of Nevada. Find out more...

Seagrass meadows: Critical habitats for juvenile fish and dugongs in the east coast Johor islands

Fri, 21 Jul 2017 10:45:30 EDT ~ Seagrass meadows in Johor harbor have three times more juvenile fish than coral reefs, scientists have found. They also found that the dugong herds there prefer certain types of meadows over others. Find out more...

Biological hydraulic system discovered in tuna fins

Thu, 20 Jul 2017 14:23:23 EDT ~ The unique system of hydraulic control of fins discovered in tuna indicates a new role for the lymphatic system in vertebrates. This natural mechanism may inspire designs for new 'smart' control surfaces with changeable shape and stiffness for both air and underwater unmanned vehicles. Find out more...

Damming and lost connectivity for fish in Northeastern ecosystems

Wed, 19 Jul 2017 14:09:33 EDT ~ Fish that migrate between freshwater and sea ecosystems play a multitude of ecological roles. In the centuries since Europeans first colonized the Americas, damming and other disruptions to river connectivity have greatly decreased the migration opportunities of these species. A new article outlines the effects of lost habitat and river connectivity for these crucial fish. Find out more...

Robotics-based study provides insight into predator-prey interactions

Wed, 19 Jul 2017 11:33:56 EDT ~ Scientists have put forth a robotics-based study to control information flow in predator-prey interactions, as well as test the validity of transfer entropy when attempting to understand causal influences of the system. Find out more...

To swallow food, some sharks shrug their shoulders

Tue, 18 Jul 2017 22:18:49 EDT ~ Sophisticated X-ray imaging technology has allowed scientists to see that to keep food moving down toward the digestive tract, bamboo sharks use their shoulders to create suction. Find out more...

A tale of two fishes: Biologists find male, female live-bearing fish evolve differently

Tue, 18 Jul 2017 11:37:19 EDT ~ Male and female live-bearing fish evolve differently: female evolution is influenced more strongly by natural selection, while male evolution is influenced more strongly by sexual selection, according to new research. Find out more...

Oil impairs ability of coral reef fish to find homes and evade predators

Mon, 17 Jul 2017 11:05:05 EDT ~ Just as one too many cocktails can lead a person to make bad choices, a few drops of oil can cause coral reef fish to make poor decisions. Oil impacts the higher-order thinking of coral reef fish in a way that could prove dangerous for them -- and for the coral reefs where they make their home. Find out more...

Brief interactions spur lasting waves of gene activity in the brain

Mon, 17 Jul 2017 11:04:40 EDT ~ A five-minute encounter with an outsider spurs a cascade of changes in gene activity in the brain that can last for hours, researchers report in a study of stickleback fish. Find out more...

Record-breaking marine heatwave powered by climate change cooks Tasmania's fisheries

Mon, 17 Jul 2017 10:04:43 EDT ~ Climate change has warmed the waters east of Tasmania at four times the speed of the global average. But the heatwave of the southern summer of 2015/2016 was something exceptional, damaging fisheries and bringing new species to the island. It's a sign of things to come, say the researchers examining these events. Find out more...