A Synthesis of Opportunities for Applying the Telecoupling Framework to Marine Protected Areas
"The world’s oceans face unprecedented anthropogenic threats in the globalized era that originate from all over the world, including climate change, global trade and transportation, and pollution. Marine protected areas (MPAs) serve important roles in conservation of marine biodiversity and ecosystem resilience, but their success is increasingly challenged in the face of such large-scale threats. [...]"
Authors: Vanessa Hull et al.
Study tests resilience of the Salish Sea to climate change impacts
"What will the ecology of the Salish Sea look like in the year 2095?
It's an important question for millions of people who live along and near the shores of this intricate, interconnected network of coastal waterways, inlets, bays, and estuaries that encompasses Puget Sound in Washington state and the deep waters of southwest British Columbia. A research team from PNNL found that the inner Salish Sea is resilient, and that future response to climate change—while significant—will be less severe than the open ocean. [...]"
High-resolution underwater laser spectrometer sensing provides new insights into methane distribution at an Arctic seepage site
"Methane (CH4) in marine sediments has the potential to contribute to changes in the ocean and climate system. Physical and biochemical processes that are difficult to quantify with current standard methods such as acoustic surveys and discrete sampling govern the distribution of dissolved CH4 in oceans and lakes. [...]"
Source: Ocean Science
Authors: Pär Jansson et al.
Subseafloor life and its biogeochemical impacts
"Subseafloor microbial activities are central to Earth’s biogeochemical cycles. They control Earth’s surface oxidation and major aspects of ocean chemistry. They affect climate on long timescales and play major roles in forming and destroying economic resources. In this review, we evaluate present understanding of subseafloor microbes and their activities, identify research gaps, and recommend approaches to filling those gaps. [...]"
Source: Nature Communications
Authors: Steven D’Hondt et al.
Uncovering mechanisms of global ocean change effects on the Dungeness crab (Cancer magister) through metabolomics analysis
"The Dungeness crab is an economically and ecologically important species distributed along the North American Pacific coast. To predict how Dungeness crab may physiologically respond to future global ocean change on a molecular level, we performed untargeted metabolomic approaches on individual Dungeness crab juveniles reared in treatments that mimicked current and projected future pH and dissolved oxygen conditions. [...]"
Source: Scientific Reports
Authors: Shelly A. Trigg et al.
Scientists, students to conduct first live, interactive public broadcasts from arctic ocean
The innovative, 18-day Northwest Passage Project research expedition will depart on July 18 from the U.S. Air Base in Thule, Greenland, aboard the Swedish Icebreaker Oden, returning to Thule August 4 after a 2,000 nautical mile voyage through the Northwest Passage [...]"
Observing an anticyclonic eddy in the South China Sea using multiple underwater gliders
"Mesoscale eddies, as a considerable contributor to the transport of ocean heat, dissolved oxygen and other biochemical tracers, have an important influence on the distribution of marine resources and global climate change. The purpose of this research is to capture the high variability of an anticyclonic eddy in South China Sea to observe its thermohaline vertical structure in different transections. [...]"
Source: OCEANS 2018 MTS/IEEE Charleston
Authors: Shufeng Li et al.
The far-future ocean: Warm yet oxygen-rich
"The oceans are losing oxygen. Numerous studies based on direct measurements in recent years have shown this. Since water can dissolve less gas as temperatures rise, these results were not surprising. In addition to global warming, factors such as eutrophication of the coastal seas also contribute to the ongoing deoxygenation. [...]"
Loss of fixed nitrogen causes net oxygen gain in a warmer future ocean
"Oceanic anoxic events have been associated with warm climates in Earth history, and there are concerns that current ocean deoxygenation may eventually lead to anoxia. Here we show results of a multi-millennial global-warming simulation that reveal, after a transitory deoxygenation, a marine oxygen inventory 6% higher than preindustrial despite an average 3 °C ocean warming. [...]"
Source: Nature Communications
Authors: Andreas Oschlies et al.
Will giant polar amphipods be first to fare badly in an oxygen-poor ocean? Testing hypotheses linking oxygen to body size
"It has been suggested that giant Antarctic marine invertebrates will be particularly vulnerable to declining O2 levels as our ocean warms in line with current climate change predictions. Our study provides some support for this oxygen limitation hypothesis, with larger body sizes being generally more sensitive to O2 reductions than smaller body sizes. [...]"
Source: Philosophical Transactions of the Royal Society B
Authors: John I. Spicer and Simon A. Morley