biogeochemistry

"Earth's ocean biogeochemistry is changing in response to natural and human forcing," Dr.

Algae and bacteria produce their own characteristic fat molecules," says first author Lennart van Maldegem from Max Planck Institute (MPI) for Biogeochemistry, who recently moved to the Australian National University in Canberra, Australia.

The Coral Biogeochemistry Lab in the School of Biological Sciences at HKU, one of the top institutions in Asia, led a research expedition to Oslob in 2015 in collaboration with the UoG, LAMAVE and the local government unit of Oslob.

I collaborated with Professor Abigail Smith, a marine geologist who works on skeletal carbonate biogeochemistry (what shells are made of) and ocean acidification (how shells dissolve).

The Australian scientists collaborated with scientists from the Russian Academy of Science and the Max Planck Institute for Biogeochemistry and the University of Bremen in Germany.

Biogeochemistry lab manager Janet Hope from the ANU research school of earth sciences holds a vial of coloured porphyrins (pink coloured liquid), believed to be some of the oldest pigments in the world.

This impact of bioturbation on global biogeochemistry likely affected animal evolution through expanded ocean anoxia, high atmospheric CO2 levels and global warming and possibly contributed to a number of mass extinction events.

As the hot issues of environment and geochemistry sciences, environmental biogeochemistry investigating both elements and pollutants in soil, water, air, and organism links their behavior and effects in pedosphere, hydrosphere, atmosphere, and biosphere systematically.

Other articles explore such topics as satellite-based Lagrangian view on phytoplankton dynamics; improving marine ecosystem models with biochemical tracers; how pelagic species respond to climate change; ecology, biogeochemistry, and optical properties of coccolithophores; dispersion, diffusion, and confusion: lateral mixing in the ocean; the bottom boundary layer; and manifestation, drivers, and emergence of open ocean deoxygenation.

The biogeochemistry of the water, such as the state of phytoplankton and other organic matter, regulates the rate at which sunlight loses intensity as it passes through the water, which in turn influences the water's color.

Those are the key messages to emerge from a collaborative study led by Dannielle Green, a fellow in the Biogeochemistry Research Group at Trinity College, Dublin, Ireland.