Marine Ecosystems

State of the Climate in Asia 2024

The World Meteorological Organization’s State of the Climate in Asia 2024 report warns that the region is warming nearly twice as fast as the global average, driving more extreme weather and posing serious threats to lives, ecosystems, and economies. In 2024, Asia experienced its warmest or second warmest year on …

Coral Reefs in Palau Defy Ocean Acidification

Coral reefs have been the subject of much research given the ongoing threats they are dealing with related to climate change. Ocean acidification, for one, is wreaking havoc on these delicate ecosystems, but a remarkable new study says that coral reefs in Palau may be able to defy the odds. …

Green group sues CNPC over oil spill

An environmental group in Dalian, Liaoning province, is demanding 645 million yuan ($104 million) for damage it says resulted from pollution caused by the China National Petroleum Corp in July 2010. The claim is the largest made in an environmental case in the country. Dalian's Maritime Court said it attaches …

Nuclear waste dumping a threat to ocean wealth

The disposal of nuclear waste into the sea is a serious threat to ocean wealth, a conference on ocean conservation, organised by the School of Ocean Studies and Technology of the Kerala University of Fisheries and Ocean Studies (KUFOS), has observed. The conference was organised here on Monday as part …

Changes in coral reef communities across a natural gradient in seawater pH

Ocean acidification threatens the survival of coral reef ecosystems worldwide. The negative effects of ocean acidification observed in many laboratory experiments have been seen in studies of naturally low-pH reefs, with little evidence to date for adaptation. Recently, we reported initial data suggesting that low-pH coral communities of the Palau …

Fish, Crabs Are Losing Homes as Oceans Lose Oxygen

The oxygen losses accompanying global warming could reduce by 20 percent the amount of ocean suitable for cod and crab by the end of the century, according to the study in the journal Science. The new research suggests this oxygen loss may shift and shrink marine habitats for a multitude …

Trouble looms as warmer oceans push marine life toward the poles

Rising sea temperatures attributed to global climate change could drive many marine creatures away from the equator, but their move toward the poles promises to put them in peril in habitats that are smaller and less hospitable, scientists say. Two studies published on Thursday in the journal Science illustrate dangers …

40% of Europe's sharks and rays face extinction, says IUCN

About 40% of Europe’s sharks and rays are threatened with extinction, according to the authoritative red list’s first full assessment of Europe’s 1,220 marine species. Where fish population trends could be measured, nearly a third were found to be in decline by the International Union for the Conservation of Nature …

Great Barrier Reef coral four times safer in no-take fishing reserves, study shows

Research into the Great Barrier Reef has discovered coral disease levels are four times lower inside no-take marine reserves – where fishing is banned – than outside reserves. Scientists from James Cook University surveyed more than 80,000 corals around the Whitsunday Islands for six different diseases that commonly harm reefs …

Environmentalists sue over Shell plan to drill in Arctic

Several environmental groups sued the United States on Tuesday to derail Royal Dutch Shell PLC's plan to drill in the Arctic Ocean as soon as July. The Bureau of Ocean Energy Management, an agency within the U.S. Department of the Interior, gave conditional approval in May to Shell's resumption of …

Evaluating taboo trade-offs in ecosystems services and human well-being

Environmental management inevitably involves trade-offs among different objectives, values, and stakeholders. Most evaluations of such trade-offs involve monetary valuation or calculation of aggregate production of ecosystem services, which can mask individual winners and losers. We combine a participatory, modeling, and scenarios approach to identify social–ecological trade-offs in a tropical fishery …

Shell's Arctic oil drilling faces fresh court challenge from environmental groups

Environmental impact of leasing area off Alaskan shore to Shell was insufficient, say action groups A dozen environmental groups have told a US federal court they are renewing a challenge to the leasing in 2008 of areas off Alaska’s north-west shore, where Royal Dutch Shell hopes to drill exploratory wells …

Deepwater Horizon: jury selection begins for BP exec charged in oil spill

David Rainey accused of obstructing congressional investigation as prosecutors say he misled officials about quantity of oil entering Gulf of Mexico Jury selection began on Monday for the trial of the most senior BP executive charged in connection with 2010’s fatal Deepwater Horizon oil disaster. David Rainey, BP’s former vice …

Only 13 Corporations Control Up to 40 Percent of the World's Most Valuable Fisheries

Did you know that just 13 corporations control 19 to 40 percent of the largest and most valuable stocks of fish and 11 to 16 percent of the global marine catch? Scientists have taken a closer look at the division in fishing and have found that keystone corporations are in …

Study: Global warming risks changes to ocean life unprecedented in the last 3 million years

Continued warming of the Earth’s oceans over the next century could trigger disruptions to marine life on a scale not seen in the last 3 million years, scientists warn in a study released Monday. The changes could include extinctions of some of the ocean’s keystone species as well as a …

Effects of salmon-derived nutrients and habitat characteristics on population densities of stream-resident sculpins

Movement of nutrients across ecosystem boundaries can have important effects on food webs and population dynamics. An example from the North Pacific Rim is the connection between productive marine ecosystems and freshwaters driven by annual spawning migrations of Pacific salmon (Oncorhynchus spp). While a growing body of research has highlighted …

Future vulnerability of marine biodiversity compared with contemporary and past changes

Many studies have implied significant effects of global climate change on marine life. Setting these alterations into the context of historical natural change has not been attempted so far, however. Here, using a theoretical framework, we estimate the sensitivity of marine pelagic biodiversity to temperature change and evaluate its past …

Arctic marine mammal population status, sea ice habitat loss, and conservation recommendations for the 21st century

Arctic marine mammals (AMMs) are icons of climate change, largely because of their close association with sea ice. However, neither a circumpolar assessment of AMM status nor a standardized metric of sea ice habitat change is available. We summarized available data on abundance and trend for each AMM species and …

Ocean acidification in the surface waters of the Pacific-Arctic boundary regions

The continental shelves of the Pacific-Arctic Region (PAR) are especially vulnerable to the effects of ocean acidification (OA) because the intrusion of anthropogenic CO2 is not the only process that can reduce pH and carbonate mineral saturation states for aragonite. Enhanced sea ice melt, respiration of organic matter, upwelling, and …

UNDP, DENR launch P350-million marine biodiversity project in PH

An $8-million (roughly P352-million) project has been launched by the United Nations Development Programme (UNDP) and the Department of Environment and Natural Resources-Biodiversity Management Bureau (DENR-BMB) for the expedited establishment of Marine Protected Areas (MPAs) and Marine Protected Area Networks (MPANs) in key marine biodiversity areas. The Marine Key Biodiversity …

MEP Miriam Dalli urges ‘urgent action’ to protect maritime environment

Speaking ahead of the G7 summit that is due to be held in the coming days, Maltese MEP Miriam Dalli said that more attention to the maritime environment was necessary. Speaking during the plenary session of the European Parliament, Dalli said that it is positive that the Summit has placed …

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