Lecture: Marine Sediments

 

Open Science Conference on Eastern Boundary Upwelling Systems (EBUS): Past, Present and Future & Second International Conference on the Humboldt Current System September 19 - 23, 2022

The Open Science Conference on Eastern Boundary Upwelling Systems (EBUS): Past, Present and Future and the Second International Conference on the Humboldt Current System are planned for September 19 - 23 in Lima, Peru. Although the conference aims to be in-person, options for virtual participation will be provided.

The meeting will bring together PhD students, early career scientists and world experts to understand, review, and synthesize what is known about dynamics, sensitivity, vulnerability and resilience of Eastern Boundary Upwelling Systems and their living resources to climate variability, change and extreme events.

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El sulfureto de Humboldt y su relevancia en la astrobiología

Public Lecture Series - USGS

USGS scientific material (public lectures) worth reviewing, freely available here:

How a grain of sand rewrote our ocean's history | Andrew Wheeler | TEDxDublin

ROV SuBastian Dive 095- West Mata SW Base - Underwater Fire

Biogeochemistry and sedimentology in the Benguela upwelling system

Suspended Particles in the Ocean

Benthic Foraminiferal Microhabitat by Prof. Frans Jorissen

Ocean Acidification & Climate Change - Lamont Doherty on Vimeo

Overview: Drilling Down to Deeper Understanding of How Earth Works

Conservation Asia 2016, Singapore

The SCB and ATBC are the two largest non-profit international professional organizations devoted to the conservation of biodiversity, with >10,000 members worldwide. This is the first time that SCB Asia-Pacific and ATBC Asia regional chapters will jointly host a meeting. Conservation Asia 2016 will attract up to 500 delegates from up to 80 countries. Participants will be conservation managers, agribusiness and extractive industry leaders, policy makers, conservation scientists and students from the academic, business, NGO and government communities.

The conference theme of "sustainable landscapes for people, business and biodiversity" reflects the complexity of environmental challenges facing the Asian region. Over the past 30 years, Asia has experienced spectacular increases in economic growth and human wellbeing, sustained in part through resource extraction and crop expansion. One consequence of this has been high rates of deforestation, habitat degradation, pollution, and species extinctions across Asia. This conference will be an opportunity for researchers and practitioners to engage in scientific discourse over some of the most urgent (and contentious) environmental and conservation issues facing Asia, including (but not limited to) environment-industry trade-offs; public-private approaches to the sustainable management of natural capital; environmental markets and innovative conservation financing; urban ecology; communicating conservation science; the illegal wildlife trade; and the human dimension of conservation.

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North American Congress for Conservation Biology, USA

The 3rd Biennial Congress will highlight the importance of integrating successful communication strategies into our work. In order to move from research to action, we must communicate across boundaries to encourage and empower diverse communities working to sustain the Earth's biological and cultural diversity, and to implement the policy changes that make this possible. The Congress will play an important role in advancing science and stimulating conservation action through effective dialogue and far-reaching engagement. This Congress in North America is critical to our success as conservation professionals. Please stay tuned as we update web content to reflect the upcoming conference.

Further information

A revised global estimate of dissolved iron fluxes from marine sediments

This is also an important paper recently published on Iron-flows through marine sediments.

Further information

Denitrification, Anammox, and N2 Production in Marine Sediments

Interesting and recently published paper on Nitrogen-cycling in marine sediments!


Denitrification, Anammox, and N2 Production in Marine Sediments


Annual Review of Marine ScienceVol. 7: 403-423 (Volume publication date January 2015)DOI: 10.1146/annurev-marine-010213-135040Allan H. DevolSchool of Oceanography, University of Washington, Seattle, Washington 98195-5351; email: devol@u.washington.edu

Abstract: Fixed nitrogen limits primary productivity in many parts of the global ocean, and it consequently plays a role in controlling the carbon dioxide content of the atmosphere. The concentration of fixed nitrogen is determined by the balance between two processes: the fixation of nitrogen gas into organic forms by diazotrophs, and the reconversion of fixed nitrogen to nitrogen gas by denitrifying organisms. However, current sedimentary denitrification rates are poorly constrained, especially in permeable sediments, which cover the majority of the continental margin. Also, anammox has recently been shown to be an additional pathway for the loss of fixed nitrogen in sediments. This article briefly reviews sedimentary fixed nitrogen loss by sedimentary denitrification and anammox, including in sediments in contact with oxygen-deficient zones. A simple extrapolation of existing rate measurements to the global sedimentary denitrification rate yields a value smaller than many existing measurement-based estimates but still larger than the rate of water column denitrification.

You can visit Annual Reviews WebSite for more information