PMEL scientists from the Earth-Ocean Interactions Program will be remotely joining the NOAA Ship Okeanos Explorer on its deep-water exploration of the Mariana region via “telepresence” from Newport, OR and Seattle, WA. PMEL will lead three remotely operated vehicle (ROV) dives tentatively scheduled for this weekend. These dives will explore three hydrothermal vent sites that were recently discovered on an R/V Falkor research cruise conducted in fall 2015. This region is home to the deepest parts of the ocean, the Mariana Trench, and hydrothermal vents with unique marine ecosystems in diverse geologic settings.
The main goal of the expedition is to collect baseline information of unknown and poorly known areas in and around the Mariana region to support science and management needs, and to understand the diversity and distribution of deep-water habitats. The expedition continues through July 10.
PMEL in the News
Craig Welch said he didn't exactly know what he was getting himself into when he went fishing with two Papua New Guinea natives in an area that was notorious for sharks.
As Siberian permafrost thaws, crumbling Russian coastlines and big rivers flowing north along eroding banks are dumping vast loads of organic carbon into marine waters there, causing much quicker acidification than had been anticipated and signaling future danger for the entire Arctic Ocean.
Studying where some of the smallest organisms in the ocean are located can be difficult when they are found beneath the surface. In the late summer and early fall, phytoplankton in the Chukchi Sea are usually found in thin, patchy layers that can only be observed using shipboard surveys. In a collaborative effort between PMEL’s EcoFOCI group and the University of Alaska Fairbanks, scientists were able to map the distribution of subsurface phytoplankton using a novel high-resolution towed... more