News

20 suspected new marine species arise from Schmidt Ocean Institute’s Nazca Ridge Expedition

03/07/2024
Written byMaya de Paz
Photography bySchmidt Ocean Institute

During the most recent Ocean Census expedition, scientists from the Ocean Census Science Network collaborated with the Schmidt Ocean Institute (SOI) team to identify 20 potentially new marine species.

The seamounts of the Southeastern Pacific host remarkable biological diversity, with species found nowhere else to date

Prof. Alex David Rogers Science Director The Ocean Census

A growing number of Discoveries

This expedition focused on the Nazca Ridge, an underwater mountain range located 900 miles off the coast of Chile.

This voyage marks the third expedition this year to explore the Salas y Gómez and Nazca Ridges for the Schmidt Ocean Institute and its state-of-the-art research vessel, R.V. Falkor (too).

Earlier SOI expeditions in January and February revealed over 150 species previously unknown to science, along with many instances of animals being observed in new areas.

Before these SOI expeditions, only 1,019 species had been documented in this part of the Pacific Ocean. Thanks to these efforts, that number has now surpassed 1,300 and continues to grow.

The new findings will be submitted to the Ocean Census.

High Seas and Seamounts of the Nazca Ridges

Species Never Seen Before

The team on board SOI’s Falkor (too) successfully captured the first-ever footage of a live Promachoteuthis squid, a genus so elusive that only three species have been identified, with most specimens collected dating back to the late 1800s. Previously, the genus was known only from dead specimens retrieved from nets.

Additionally, the expedition documented a Casper octopus, marking the first time this species has been observed in the Southern Pacific. The team also encountered two rare Bathyphasa siphonophores, commonly referred to as flying spaghetti monsters.

The work our taxonomists have conducted aboard Falkor (too), supported by the Schmidt Ocean Institute team, will significantly enhance our understanding of the distribution of remarkable life forms on these underwater mountains, including several that have never before been mapped or seen by human eyes.

Prof. Alex David Rogers Science Director The Ocean Census

Mapping a New Seamount

The newly identified seamount, discovered during SOI’s Nazca Ridge expedition, stands over 1.9 miles tall, and hosts a vibrant deep-sea ecosystem.

During an exploratory dive, the team used an underwater ROV to document sponge gardens and ancient corals on one of its ridges.

With Thank you to...

Thank you to the Schmidt Ocean Institute for collaborating with the Ocean Census Science Network scientists to join this incredible expedition.

Your support has made it possible for these dedicated researchers to conduct groundbreaking work that deepens our understanding of this crucial region.