Biogeochemistry
Wash your hands after a beach day!
This study demonstrates a direct relationship between the potentially dangerous bacteria Vibrio in beach water with what is on your…
Author: Kari St.Laurent
I received a Ph.D. in oceanography in 2014 from the Graduate School of Oceanography (URI) and am finishing up a post-doc at the University of Maryland Center for Environmental Science (Horn Point Laboratory). I am now the Research Coordinator for the Delaware National Estuarine Research Reserve.
Carbon is my favorite element and my past times include cooking new vegetarian foods, running, and dressing up my cat!
Human impacts Pollution
Shine on…..or should we?
The consequences artificial light pollution has on marine ecosystems is unclear. This work compiles many of the known and expected…
Biology Climate Change
O Vibrio, Vibrio, wherefore art thou Vibrio?
Three statistical models used to predict the presence of the dangerous pathogen Vibrio in Chesapeake Bay all give different responses…
Biology Ecology
Turtle manure and eelgrass seeds make for an aquatic garden!
The accidental ingestion of eelgrass seeds by diamondback terrapins may help disperse eelgrass in Chesapeake Bay, demonstrating a new mutualistic…
Climate Change Human impacts
Stressing out about water stress
It’s not just climate change that will affect global water stress! Model simulations predict that when both climate change and…
Biochemistry Ecology
Using nitrogen isotopes to start from the bottom…of the marine food web!
Amino acids, the building blocks of proteins, are an important nitrogen source in the ocean and the δ15N of amino…
Climate Change Human impacts Pollution
An accidental find: Large quantities of microplastics are in Arctic sea ice!
Multiyear sea ice formation in the Arctic Sea uptakes microplastics from seawater, effectively acting as a sink for these man-made…
Biogeochemistry
Take your iron! Seasonally melting snow as an iron supply to the Ross Sea, Antarctica
Observations show that the amount of primary productivity in the McMurdo Sound in the Ross Sea of Antarctica cannot be…
Climate Change Human impacts
Could increasing CO2 be decreasing human nutrition?
The increase in global atmospheric CO2 concentrations may be causing major food crops, like wheat, to have lower amounts of…
Biogeochemistry Geology
Volcanic ash, fertilizer for the ocean?
Volcanic ash may be an important source of the valuable micronutrients iron and manganese to phytoplankton populations in areas with…
Biogeochemistry
A sticky situation: Old black carbon and sinking particulate organic carbon
The attachment of aged dissolved black carbon to sinking particles may be an important process for transporting organic carbon to…
Atmospheric Chemistry Biology Chemistry Remote Sensing
A break-up in the relationship between organic carbon in sea spray and chlorophyll-a concentrations
The transfer of organic matter from the surface sea water to sea spray aerosols appears constant despite the concentration of…
Climate Change Human impacts Policy
Can’t we all just get along! Bridging the gap between climate scientists and decision-makers to help prevent precipitation-related catastrophes
Climate scientists and humanitarian organizations are implementing a plan to help predict major precipitation-related disasters, such as floods, by focusing…
Biogeochemistry Climate Change Paleoceanography
We didn’t start the fire!… that changed the southeast Australian landscape 44 thousand years ago
A sediment core suggests that the large ecosystem changes that occurred in southeastern Australia were caused by the extinction of…
Biogeochemistry Climate Change Paleoceanography
Why lions can thank wildfires for the African Savanna
Sediment records show that wildfires caused the initial expansion of grasslands in Africa during the Miocene (8 million years ago)…
Biogeochemistry
Carbon on Fire! The role dissolved black carbon plays in the ocean
Fire-derived carbon (or black carbon) composes at least 10% of the marine dissolved organic carbon pool and may act accelerate…
Biology Chemistry Climate Change
How will phytoplankton communities change in a warming world?
A global marine ecosystem model was used to predict how primary productivity and carbon export by phytoplankton will change in…