How bacteria survive low oxygen environments

Researchers from ITQB NOVA, in collaboration with the Institut Pasteur in Paris, have shed light on the mechanisms that allow Clostridioides difficile, a pathogen that can only grow in oxygen-free environments, to be able ...

How weather affects crawfish harvests

The life cycle of a crawfish can be fairly straight forward. In the summer months, crawfish reproduce in underground mud burrows with a plug of mud on top of the burrow to protect them from predators. In late summer and early ...

Low-oxygen zones in Danish seas double in a year

The area of Danish seas affected by low oxygen levels—a problem triggered by climate change—has doubled in the space of a year, according to a university report published Friday.

Life in the shallows becomes a trap for baby sharks

Scientists can now explain how baby reef sharks tolerate living in the sometimes-extreme environments of their nurseries—but, they also say these habitats face an uncertain future which may leave newborn sharks 'trapped'.

Warming climate will impact dead zones in Chesapeake Bay

In recent years, scientists have projected increasingly large summer dead zones in the Chesapeake Bay, areas where there is little or no oxygen for living things like crabs and fish to thrive, even as long-term efforts to ...

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