GeoLog

Ocean Sciences

Ocean hypoxia: what does the increase of dead zones mean for marine life?

Ocean hypoxia: what does the increase of dead zones mean for marine life?

When runoff from farmland and urban areas enters our streams and rivers, it carries a heavy load of fertilizers and nutrients. These substances accumulate and flow into our coastal oceans, triggering a series of reactions that can create hypoxic ‘dead zones’. Dead zones are low-oxygen, or hypoxic, areas in the world’s oceans and lakes. Because most organisms need oxygen to live, very f ...[Read More]

GeoTalk: meet Alessandro Silvano, winner of the 2024 Ocean Sciences Division Outstanding ECS Award!

Alessandro Silvano

Hello Alessandro. Thank you for joining me for this edition GeoTalk! Could you tell our readers about your background before we dive in?  I am an oceanographer based at the University of Southampton (UK). I am interested in polar oceanography and ice-ocean interactions. The focus of my work is to understand the processes that control ocean heat transport toward rapidly-melting Antarctic glaciers. ...[Read More]

The world of hydrography calls for more hands on deck

The world of hydrography calls for more hands on deck

This week on 21st June, governments around the world observed World Hydrography Day to celebrate the role of hydrography in understanding the seas. Though initially thought to be a field limited to the navigation of ships, hydrography is being increasingly recognized for its knowledge contribution to the oceans, seas, coastal areas, lakes and rivers, as well as with predicting their change over ti ...[Read More]

GeoTalk: meet Freija Mendrik, researcher of microplastics pollution in coral reefs!

Freija Mendrik

Hi Freija. Thank you for joining us today! Could you tell our readers a bit about yourself before we dive in? Hi Simon, thanks for inviting me! I’m a marine scientist based in the UK specialising in microplastic pollution but my work has taken me across many different disciplines from physical geography to ecotoxicology. Recently my research has focused on trying to understand what impacts the tra ...[Read More]