Pecologix Political Ecology Blotter

After detailed analysis, the conclusion is that Japan should be responsible for the obligation of immediate notification and since Japan unilaterally discharge the wastes without prior specific permits of other contracting countries, it should also be responsible for the violation of prevention of dumping. Since so far, no material injury has emerged and there would [...]

Global warming contrarians remind the public that the world has not warmed all that much, if at all, during the past decade or so. But that’s the atmosphere. Oceanographers with their thermometers in Earth’s biggest reservoir of heat—the world’s ocean—report in a paper to be published in Geophysical Research Letters that greenhouse warming has in [...]

Acoustic surveys of New Zealand deep-water seamounts often show fish aggregations up to 150 m high on the summit. Although bottom trawls on the seamount slopes catch predominantly orange roughy (Hoplostethus atlanticus), species composition in the midwater plumes is extremely uncertain. In June 2010, moored underwater video cameras were deployed on the summit of the [...]

Ocean acidification may have severe consequences for marine ecosystems; however, assessing its future impact is difficult because laboratory experiments and field observations are limited by their reduced ecologic complexity and sample period, respectively. In contrast, the geological record contains long-term evidence for a variety of global environmental perturbations, including ocean acidification plus their associated biotic [...]

Ocean acidification is considered a major threat to calcifying organisms4, 5, 6. Detecting its magnitude and impacts on regional scales requires accurate knowledge of the level of natural variability of surface ocean carbonate ion concentrations on seasonal to annual timescales and beyond. Ocean observations are severely limited with respect to providing reliable estimates of the [...]

Ocean acidification (OA) is a reduction in oceanic pH due to increased absorption of anthropogenically produced CO2. This change alters the seawater concentrations of inorganic carbon species that are utilized by macroalgae for photosynthesis and calcification: CO2 and HCO3− increase; CO32− decreases. Two common methods of experimentally reducing seawater pH differentially alter other aspects of [...]

The classification of marine habitats is a critical first step towards the protection of marine biodiversity and the sustainable management of the world’s oceans. Recently, the topic has received heightened attention as the 2012 deadline for meeting international commitments under the convention on biological diversity (CBD) approaches. These commitments require the development of a unified [...]