Group items tagged

As predators of bacteria and viruses and as food sources for microzooplankton, heterotrophic flagellates (HFs) play an important role in the marine micro-food web. Based on the global climate change's impact on marine ecosystems, particularly sea ice melting, we analyzed the community composition and diversity of heterotrophic flagellates, focusing on the Antarctic Cosmonaut Sea. During the 36th China Antarctic research expedition (2019-2020), we collected seawater samples, subsequently analyzing HFs through IlluminaMiSeq2000 sequencing to assess community composition and diversity. Notable variations in HFs abundance were observed between the western and eastern sectors of the Cosmonaut Sea, with a distinct concentration at a 100-meter water depth. Different zones exhibited diverse indicators and dominants taxa influenced by local ocean currents. Both the northern Antarctic Peninsula and the western Cosmonaut Sea, where the Weddell Eddy and Antarctic Land Slope Current intersect, showcased marine stramenopiles as dominant HFs species. Our findings offer insights into dominant taxa, spatial distribution patterns among heterotrophic flagellates, correlations between taxa distribution and environmental factors, and the exploration of potential indicator taxa.

Giant Ocean Vortex Linked to Monsoon.

Oceanographers offer clues to Malaysian airlines crash.

Bay of Bengal: depleted fish stocks and huge dead zone signal tipping point

Gliders are helping unlock the secrets of the Agulhas current.

This summer's sea temperatures were the hottest on record for Australia: here's why.

This summer's sea temperatures were the hottest on record for Australia: here's why.

Indian summer monsoon amplified global warming 130,000 years ago, helping end ice age.

A current affair: the movement of ocean waters around Australia.

Australia has the third largest marine jurisdiction in the world, a vast ocean territory that contains important natural and biological resources. And it needs protecting.

Australia has the third largest marine jurisdiction in the world, a vast ocean territory that contains important natural and biological resources. And it needs protecting.

A James COOK University scientist has discovered why there was an unprecedented dieback of mangroves in the Gulf of Carpentaria in early 2016 - the plants died of thirst.

Australia's Other Great (and Threatened) Coral Reefs.

The year to date also ranked 2nd-warmest for the globe.

Dipole: the 'Indian Niño' that has brought devastating drought to East Africa.

Sea levels around the world have risen by 1.7 millimeters (0.07 inches) on average each year since 1880, but in recent years, scientists have observed a rapid increase in sea level in the north Indian Ocean. Tide gauge records and other datasets reveal the pace of sea level rise in the north Indian Ocean has accelerated to 3.1 millimeters (0.12 inches) per year within the last three decades.

Groundbreaking Indian Ocean science mission reaches an end.