Employment of ROV techniques and scuba in Yellowstone Lake

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Employment of ROV techniques and scuba in Yellowstone Lake

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Title: Employment of ROV techniques and scuba in Yellowstone Lake
Author: Buchholz, LA; Anderson, PD; Cuhel, RL; Klump, JV; Kostka, JE; Paddock, RW; Remsen, CC; Maki, JS; Lovalvo, D
Abstract: Beneath the waters of Yellowstone Lake in Yellowstone National Park a unique set of geothermal features has been recently discovered: hydrothermal springs and gas fumaroles. Evidence suggests that these features may have a substantial impact on the biology and geochemistry of the lake, by adding hydrothermally derived elements and supporting enhanced rates of microbially based chemosynthetic activity. For the last few years we have employed both scuba and ROV's to explore and sample the waters and microbial communities associated with these hot springs. Many of these systems are in relatively shallow water easily accessible by divers, others are in depths up to 130 meters. To sample these deeper systems we have developed an ROV deployed "sipper sampler" which employs a hydraulically driven syringe pump to draw water into one of 16 sample syringes while measuring the temperature of the hydrothermal fluids. We have sampled vent water reaching temperatures in excess of 100 C and containing concentrations of dissolved constituents two orders of magnitude above ambient lake water. The ROV has also been equipped with 35 mm and video cameras, a Hydrolab CTDIDO/pH monitor, and a 3 function manipulator capable of handling a number of water and sediment grab samplers.
Description: American Academy of Underwater Sciences (http://www.aaus.org/)
URI: http://archive.rubicon-foundation.org/9652
Date: 1995

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