AKA: none
Other ID: Hawaii abyssal nodules and ecosystems
Status: Pending
Organization(s): USGS, Pacific Coastal and Marine Science Center
Funding Program(s): Global Marine Mineral Resources ()
Principal Investigator(s): Amanda Demopolous, Kira Mizell
Affiliate Investigator(s): Aaron Aunins; Christina Kellogg; Hope Ianiri; Jane Rudebusch; Katlin Adamczyk; Dhugal Lindsay; Cassia Busch; Charlotte Seid; Marissa Despins
Information Specialist(s): Kira Mizell
Data Type(s): Environmental Data: ORP, Visual Identification: Species ID, Visual Identification: Ground Truthing, Biological Field Study: Surveys (biological), Biological Field Study: Experiments (biological), Imagery: Video, Imagery: Photo, Environmental Data: pH, Environmental Data: Sediment Properties, Environmental Data: Turbidity, Environmental Data: Temperature, Environmental Data: Nutrients, Environmental Data: Depth, Environmental Data: Dissolved Oxygen, Environmental Data: Conductivity, Environmental Data: CTD, Environmental Data: Chlorophyll, Sampling: Geology, Sampling: Chemistry, Sampling: Biology, Geochemical: Experiments (geochemical)
Scientific Purpose/Goals: To determine the distribution of abyssal manganese nodules and characterize the environmental setting of the abyssal plains in U.S. waters far offshore Hawaii, including fauna on the nodules, within the sediments, and in the overlying water column.
Vehicle(s):
Start Port/Location: Honolulu, HI
End Port/Location: Honolulu, HI
Start Date: 2025-10-30
End Date: 2025-11-20
Equipment Used: sampling equipment, Submersible observations, CTD, Nutrient sampler, Camera-video, Ground truthing obsvervations, sample, camera, Sensors - pressure, watersamples, RBR Virtuoso, CTD_SeaBird, niskin bottle, core, boxcore
Information to be Derived: seabed mineral presence; seabed mineral abundance; seabed mineral composition; seafloor sediment mineralogy and geochemistry; microbial community composition and diversity; benthic fauna composition and diversity; water column fauna composition and diversity; water column conductivity, temperate, and nutrient profiles
Summary of Activity and Data Gathered:
Staff: Peter Pearsall, Jaycee Favela, Isabelle Shapiro, Jane Rudebusch, Daniel Powers, Peter Dal Ferro
Affiliate Staff:
Notes:
Location:
Southernmost portion of the U.S. Exclusive Economic Zone, approximately 200 miles south of the Island of Hawaii.
| Boundaries | |||
|---|---|---|---|
| North: 16.00819592 | South: 15.53391042 | West: -157.33756542 | East: -153.95145893 |
Platform(s):
Other | Kilo Moana |
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| sampling equipment | --- | Biology Chemistry Geology Experiments (biological) Sediment Properties | |
| Submersible observations | --- | Species ID Submersible Observations | |
| CTD | --- | Surveys (geochemical) Experiments (geochemical) CTD | |
| Nutrient sampler | --- | Chlorophyll Nutrients | |
| Camera-video | --- | Photo Video | |
| Ground truthing obsvervations | --- | Ground Truthing | |
| sample | --- | Surveys (biological) | |
| camera | --- | Photo | |
| Sensors - pressure | --- | Depth | |
| watersamples | --- | Conductivity CTD Dissolved Oxygen Fluorescence Nitrate pH Temperature Turbidity Wave | |
| RBR Virtuoso | --- | Mooring (physical oceanography) Tide Wave Turbidity pH ORP Fluorescence Dissolved Oxygen Temperature Pressure CTD | |
| CTD_SeaBird | --- | CTD | |
| niskin bottle | --- | Chemistry | |
| core | --- | Biology Geology | |
| boxcore | --- | Biology Geology |
