MarineBio Conservation SocietyFisheries News   :: ScienceDaily

Exposure to water that is both salty and fresh is key to future success

Wed, 17 Jan 2018 13:54:20 EST ~ According to Charles Darwin the ability to adapt to new conditions is essential for survival of species. The capacity to cope with altered conditions is becoming increasingly important in the face of climate change. New evidence on salt water tolerance in spawning migrating pike from the Baltic Sea suggests that not being adapted to specific local environments may promote persistence in an uncertain, rapidly changing world. Find out more...

Scale-eating fish adopt clever parasitic methods to survive

Wed, 17 Jan 2018 13:51:36 EST ~ A small group of fishes -- possibly the world's cleverest carnivorous grazers -- feeds on the scales of other fish in the tropics. Biologists are trying to understand these scale-feeding fish and how this odd diet influences their body evolution and behavior. Find out more...

Coping with climate stress in Antarctica

Wed, 17 Jan 2018 12:16:40 EST ~ Some Antarctic fish living in the planet's coldest waters are able to cope with the stress of rising carbon dioxide levels the ocean. They can even tolerate slightly warmer waters. But they can't deal with both climate change stressors at the same time, according to a new study. Find out more...

No-fishing zones help endangered penguins

Tue, 16 Jan 2018 22:25:17 EST ~ Small no-fishing zones around colonies of African penguins can help this struggling species, new research shows. Find out more...

Pharmaceuticals and other contaminants force fish to work much harder to survive

Tue, 16 Jan 2018 12:37:44 EST ~ Pharmaceuticals and other human-made contaminants are forcing fish that live downstream from a typical sewage treatment plant to work at least 30 percent harder just to survive, researchers have found. Find out more...

New application for acoustics helps estimate marine life populations

Mon, 15 Jan 2018 09:42:25 EST ~ Researchers have for the first time have used hydroacoustics as a method for comparing the abundance of fishes within and outside marine protected areas (MPAs). Find out more...

Dramatic decline in genetic diversity of Northwest salmon

Wed, 10 Jan 2018 14:13:12 EST ~ Columbia River Chinook salmon have lost as much as two-thirds of their genetic diversity, researchers have found. The researchers reached this conclusion after extracting DNA from scores of bone samples -- some harvested as many as 7,000 years ago -- and comparing them to the DNA of Chinook currently swimming in the Snake and Columbia rivers. The work is 'the first direct measure of reduced genetic diversity for Chinook salmon from the ancient to the contemporary period.' Find out more...

Camelina oil improves blood lipid profile

Mon, 08 Jan 2018 10:13:36 EST ~ The use of camelina oil reduces overall and LDL cholesterol levels in persons with impaired glucose metabolism, according to a new study. Find out more...

The ocean is losing its breath -- here's the global scope

Thu, 04 Jan 2018 15:35:11 EST ~ In the past 50 years, the amount of water in the open ocean with zero oxygen has gone up more than fourfold. In coastal water bodies, including estuaries and seas, low-oxygen sites have increased more than tenfold since 1950. Scientists expect oxygen to continue dropping even outside these zones as Earth warms. Find out more...

Conserving coral communities

Wed, 27 Dec 2017 14:59:43 EST ~ For years, people have sought to stop the loss of coral reefs by transplanting corals grown in underwater 'nurseries' to damaged reefs, but little work had been done to evaluate how effective such efforts were. A new study, however, suggests those projects have a positive impact on local fish populations, both in the short term and over time. Find out more...