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A suspended-particle rosette multi-sampler for discrete biogeochemical sampling in low-particle-density waters
| Content Provider | Semantic Scholar |
|---|---|
| Author | Breier, John A. |
| Copyright Year | 2009 |
| Abstract | A suspended-particle rosette multi-sampler for discrete biogeochemical sampling in low-particle-density waters J.A. Breier a, A , C.G. Rauch a , K. McCartney b , B.M. Toner c , S.C. Fakra d , S.N. White a , C.R. German a a Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA Massachusetts Institute of Technology, Cambridge, MA 02139, USA University of Minnesota – Twin Cities, St. Paul, MI 55108, USA d Lawrence Berkeley National Lab, Berkeley, CA 94720, USA b c abstract To enable detailed investigations of early stage hydrothermal plume formation and abiotic and biotic plume processes we developed a new oceanographic tool. The Suspended Particulate Rosette sampling system has been designed to collect geochemical and microbial samples from the rising portion of deep-sea hydrothermal plumes. It can be deployed on a remotely operated vehicle for sampling rising plumes, on a wire-deployed water rosette for spatially discrete sampling of non-buoyant hydrothermal plumes, or on a fixed mooring in a hydrothermal vent field for time series sampling. It has performed successfully during both its first mooring deployment at the East Pacific Rise and its first remotely-operated vehicle deployments along the Mid-Atlantic Ridge. It is currently capable of rapidly filtering 24 discrete large-water- volume samples (30–100 L per sample) for suspended particles during a single deployment (e.g. 490 L per sample at 4–7 L per minute through 1 m m pore diameter polycarbonate filters). The Suspended Particulate Rosette sampler has been designed with a long-term goal of seafloor observatory deployments, where it can be used to collect samples in response to tectonic or other events. It is compatible with in situ optical sensors, such as laser Raman or visible reflectance spectroscopy systems, enabling in situ particle analysis immediately after sample collection and before the particles alter or degrade. Keywords: Deep-sea Hydrothermal vents Geochemistry Suspended particles Instrumentation Remotely operated vehicle 1. Introduction Suspended particulate material is ubiquitous through- out the hydrosphere. In its broadest definition it is composed of living and non-living material and spans a range of particle sizes, compositions, and concentrations. The formation, transport, dissolution, and burial of particulate material are fundamental to biogeochemical cycles (Anderson et al., 2003). The distribution and transport of the biotic components of suspended particles – larvae, plankton, microbes, and viruses – are equally important in understanding aquatic ecosystems. Niskin bottles, in situ filtering pelagic pumps, and a variety of specialized apparatus have served most suspended parti- cle sampling needs. However, in deep-sea hydrothermal plumes, we are undertaking new geochemical and micro- bial research in environments that require spatially and temporally precise sampling. To accomplish this, we have developed a novel Suspended Particulate Rosette (SUPR) multi-sampler that can be deployed either on a mooring for unattended time series sample collection or on a remotely operated vehicle (ROV) to enable sampling tasks such as vertical-profiling of rising hydrothermal plumes. The SUPR sampler is |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.dsr.2009.04.005 |
| Alternate Webpage(s) | https://cloudfront.escholarship.org/dist/prd/content/qt83t1x9d2/qt83t1x9d2.pdf?t=li6jyr |
| Alternate Webpage(s) | https://doi.org/10.1016/j.dsr.2009.04.005 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
