All Digital Items

Laguna Playa Grande (left) located behind a Vieques barrier beach.

Jon Woodruff coring in wetlands in Vieques.

Researchers extracting sediment cores in Vieques.

HROV Nereus shown in its two modes, autonomous and tethered.

Mark Dennett deploys a sampling instrument while Linda Amaral-Zettler records notes.

CTD rosette on the fantail deck of R/V Oceanus ready for deployment.

Dennis McGillicuddy and Ruoying He deploy a drifter in Bay of Fundy.

Student Sarah Chang collecting water samples.

Jim Lerczak working with drifters to study surface water movement.

Jim Lerczak working with drifters to study surface water movement.

Deployment of low-frequency sonar system to detect fish and zooplankton.

Ken Sims holding stackable filters that he used to collect small metal particles.

Melanie Witt, Tamsin Mather and David Pyle leaving Masaya Volcano site.

John Catto wearing his respirator at the Masaya volcano.

John Catto, Ken Sims and Dennis Jackson climbing into Masaya volcano.

Neutrally Buoyant Sediment Trap surface float is located.

Ken Buessler and Jim Valdes using a crossbow with a grapple to recover an NBST.