Representatives from the national academies of sciences of the G20 countries handed over recommendations for improving marine conservation to the Japanese Prime Minister Shinzo Abe.

“Bermuda’s marine environment and its inhabitants are used to major storms, including hurricanes. There will inevitably be some acute damage as well as some ongoing negative effects in the short to medium term, but overall our marine ecosystems tend to recover well,” the Department of Environmental Protection said. Having found both a sea fan and […]

Representatives from the national academies of sciences of the G20 countries handed over recommendations for improving marine conservation to the Japanese Prime Minister Shinzo Abe.

The world’s marine ecosystems are at risk of sudden and damaging changes. The authors of a recent study say that co-ordinated management of the many drivers of marine changes, such as overfishing and pollution, is needed across international, national and local scales to help avoid the ‘regime shifts’ that affect ecosystem services and human wellbeing.

Tiny organisms called phytoplankton, which are crucial components of marine ecosystems, have been slowly disappearing over the last century, according to researchers. The decline is worrying because it may have profound effects on marine life, fisheries and carbon cycling. The study suggests the decline in phytoplankton could be linked to climate change.

The world’s ocean ecosystems will suffer warming, increased acidity, low oxygen and reduced primary food supply as a result of rising CO2 and this is likely to have dramatic environmental and social impacts, a new study concludes. It predicts that the most vulnerable low-income countries, where 870 million people are dependent on marine ecosystems, would be affected if CO2 emissions are not tackled.

Plastic debris is a serious environmental concern, as a physical pollutant as well as a chemical pollutant when it breaks down in the marine environment. A new study has now shown that plastics can also concentrate other pollutants, with significantly higher concentrations of toxic pollutants adhering to soft, rubbery plastics, rather than hard, glassy plastics.

New EU-supported research in the Mediterranean Sea has assessed the impact of fish-farming on seafloor ecosystems. Results indicate that impacts are only apparent in habitats with no vegetation, but the researchers suggest that habitats with vegetation seagrass could be masking the effects.

The urbanisation of coastal areas and introduction of man-made structures, such as jetties and seawalls, are changing marine environments. A new analysis highlights the impacts of these changes on marine plants and animals and suggests options to manage the detrimental effects.

Discarding – returning unwanted catches to the sea – is seen as wasteful, but banning the practice would remove an important food source for many marine organisms. This study modelled the effects of gradually reducing and abruptly banning discards using data from a protected bay in Australia. The researchers recommend gradual reduction of discards in order to maintain ecosystem stability.

The combined effects of pollution and rising levels of atmospheric greenhouse gases, including CO₂, may have effects on marine ecosystems that are more damaging than expected, warns new research. The study found that bacteria capable of breaking down oil pollution were far less abundant in sediment in acidified waters. Although increased ultraviolet-B (UV-B) light reduced these negative impacts, the researchers caution that deeper waters or other waters with less UV-B, may still suffer.

The devastating earthquake that ravaged Japan in 2011 may have also wreaked havoc on vital fisheries.