Pacific Ring of Fire Expedition. ROPOS capturing bubbles from the seafloorat Champagne vent site. The plastic tube is 45 cm (18 in) long.
Date: 2004 April
Credit: Pacific Ring of Fire 2004 Expedition. NOAA Office of Ocean Exploration; Dr. Bob Embley, NOAA PMEL, Chief Scientist
Location: Mariana Arc region, Western Pacific Ocean
Subject: Ocean exploration