Chelsea Technologies Group

The Chelsea Mariner Shuttle for Large Marine Ecosystem Monitoring

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Source: Chelsea Technologies Group

The new Chelsea Mariner Nu-Shuttle is based on the successful Nu-Shuttle towed oceanographic vehicle. It is a generic, robust monitoring system designed for regular monitoring of large marine ecosystems. Undulating behind a research vessel or ship of opportunity it enables a wide range of oceanographic measurements to be made underway from the surface to depths in excess of 150 metres. Temperature, salinity, chlorophyll, dissolved oxygen, plankton photosynthesis, plankton sampling, optical plankton counting and nutrients are all measured in real-time with the data displayed on board the ship.

Large Marine Ecosystems are regions of ocean space encompassing coastal areas from river basins and estuaries to the seaward boundaries of continental shelves and the outer margins of the major current systems. They are relatively large regions of 200,000 km2 or greater, characterized by distinct bathymetry, hydrography, productivity, and trophically dependent populations. On a global scale, 64 LMEs produce 95 percent of the world's annual marine fishery biomass yields. Within their waters, most of the global ocean pollution, overexploitation, and coastal habitat alteration occur. Routine measurements are required to characterize and understand the sustainability of these fragile ecosystems.

The Mariner Shuttle provides an efficient data collection system that enables large ecosystems to be routinely surveyed and characterized. The design and sensor suite results from several years of testing and extensive sea trials with leading oceanographic laboratories and fisheries organizations. Chelsea Shuttle systems have been supplied for ecosystem monitoring in the Benguela Current, Baltic Sea and soon to be delivered Yellow Sea ecosystems. Chelsea Technologies Group can supply complete towed vehicle systems throughout the world, including bespoke sensors.

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