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The following is a roundup of some of the latest scientific knowledge on marine litter and ocean plastics. It is based in part on a longer, more detailed article from November 2017 by MPA News’ affiliated service Marine Ecosystems and Management (MEAM).

If you are interested in this topic, please note that OCTO – the organization that produces MPA News and MEAM – also runs the global discussion list on marine litter and ocean plastics: MarineDebris.Info. It is a thriving community. In April 2018, for example, there were over 170 member posts to the list. To subscribe to the MarineDebris.Info email discussion list, click here.

MPA News

By Carlos A. Espinosa and Néstor J. Windevoxhel

The challenges facing coastal and marine protected areas in Central America remain as serious as ever. And in some ways they are getting worse.

MPA News

In last month’s MPA News, we examined the ongoing debate over the value of large vs. small MPAs: whether MPA designations should focus on large offshore sites or smaller inshore ones. This debate has been going on for many years, and we’ve reported on aspects of it several times. 

MPA News

By Anne Nelson

The effective management of MPA networks requires an array of elements. These include having adequate technical capacity of site managers, good science, committed leadership at multiple levels (sites, agencies, and policy makers), shared goals among MPAs, and monitoring of the network’s ecological effectiveness.

Importantly, it also requires good connectivity among site managers – in other words, a social network.

MPA News

Volcano fills in MPA with lava

A small, inshore, no-take MPA in the US state of Hawai‘i has been covered up by lava from ongoing volcanic eruptions on the archipelago’s Big Island. The 0.2-km2 Wai'opae Tidepools Marine Life Conservation District was designated in 2003, and was popular with snorkelers and swimmers. Now it is covered by lava rock. Hundreds of nearby homes were also destroyed by the lava flow.

OC Overview
Posted on June 19, 2018 - 9:59am, by raye

Trump’s new oceans policy washes away Obama’s emphasis on conservation and climate

To protect our fishermen and create sustainable fishing practices, we need regulations. Rolling back on Obama's ocean policy in order to “facilitate the economic growth of coastal communities and promote ocean industries” will only reduce productivity and ultimately hurt the health of our oceans. (via Science Mag

The Skimmer on Marine Ecosystems and Management

Editor’s note: The Skimmer is a MEAM feature where we briefly review the latest news and research on a topic. Last week, I had the opportunity to attend the 4th International Symposium on Effects of Climate Change on the World’s Oceans (ECCWO)[1], held in Washington, DC. This symposium gathered scientists and managers from more than 50 nations to discuss the latest science on climate change impacts on ocean ecosystems, identify climate risks and knowledge gaps, and determine best ways to respond to sustain ocean resources and communities. Here is a quick summary of some recent and brand new research findings presented at the symposium on how weather and climate extremes are impacting marine ecosystems, as well as insights shared by speakers. (Learn about climate change tools and resources presented at the symposium in this month’s EBM Toolbox). Part 2 of the Skimmer, coming out next month, will feature more research and insights from ECCWO on how we can manage and conserve ocean ecosystems in a rapidly changing climate.

We know that extreme weather events (such as marine heatwaves) and other climate change-associated effects (including ocean warming, ocean deoxygenation, and ocean acidification) are dramatically altering marine ecosystems. But we are still figuring out the how, how much, and why of these changes. Some perspectives on what we know and what we still need to know: