Dataset: TN391 Master Sample List
Deployment: EN658

View Data: For data, See Dataset Metadata Page: https://www.bco-dmo.org/dataset/945088

Principal Investigator:

Shawn M. Arellano (Western Washington University - Shannon Point Marine Center, SPMC)

David B. Eggleston (North Carolina State University - Center for Marine Science and Technology, NCSU CMAST)

Craig M. Young (University of Oregon, OIMB)

Co-Principal Investigator:

Ruoying He (Western Washington University, WWU)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Collaborative Research: dispersal depth and the transport of deep-sea, methane-seep larvae around a biogeographic barrier (SALT)

Version:

Deployment Synonyms:

SALT Fall 2020 cruise

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Description

Methods & Sampling

Dataset acquisition description

Benthic animal samples were collected using scooops and slurps on ROV Jason. Plankton samples were collecting using the SyPRID (Sentry's Precission Robotic Impeller-Driven) sampler with 150 μm mesh affixed to AUV sentry. Water samples were collected via 4-L niskin bottles on the ship's CTD carousel and filtered for a variety of studies.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing:
- removed 'NA' as missing data value (appears as blank/empty in final csv);
- renamed fields to comply with BCO-DMO naming conventions.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1851286	NSF Division of Ocean Sciences
OCE-1851383	NSF Division of Ocean Sciences
OCE-1851421	NSF Division of Ocean Sciences

Instruments

AUV Sentry

Supplied Name:

Supplied Description:

AUV Sentry with SyPRID attached.

Instrument Type

Generic Name: AUV Sentry

Generic Description:

The autonomous underwater vehicle (AUV) Sentry is a fully autonomous underwater vehicle capable of exploring the ocean down to 6,000 meters (19,685 feet) depth. Sentry builds on the success of its predecessor the ABE, with improved speed, range, and maneuverability.

Sentry's hydrodynamic shape also allows faster ascents and descents. Sentry carries a superior science sensor suite and an increased science payload enabling it to be used for both mid-water and near-seabed oceanographic investigations. Sentry produces bathymetric, sidescan, subbottom, and magnetic maps of the seafloor and is capable of taking digital bottom photographs in a variety of deep-sea terrains such as mid-ocean ridges, deep-sea vents, and cold seeps at ocean margins. Sentry is uniquely able to operate in extreme terrain, including volcano caldera and scarps. Sentry's navigation system uses a doppler velocity log and inertial navigation system, aided by acoustic navigation systems (USBL or LBL). The USBL system also provides acoustic communications, which can be used to obtain the vehicle state and sensor status as well as to retask the vehicle while on the bottom. In addition its standard sensors, Sentry has carried a variety of science-supplied sensors, including the Nakamura redox potential probe, ACFR 3-D imaging system, and the Tethys in-situ mass spectrometer.

Sentry can be used to locate and quantify hydrothermal fluxes. Sentry is also capable of a much wider range of oceanographic applications due to its superior sensing suite, increased speed and endurance, improved navigation, and acoustic communications. Sentry can be used as a stand alone vehicle or in tandem with Alvin or an ROV to increase the efficiency of deep-submergence investigations.

More information is available from the operator site at URL: http://www.whoi.edu/main/sentry

Sentry Precision Robotic Impeller Driven Sampler

Supplied Name: SyPRID

Supplied Description:

Instrument Type

Generic Name: Sentry Precision Robotic Impeller Driven Sampler

Acronym: SyPRID Sampler

Generic Description:

The SyPRID (Sentry Precision Robotic Impeller Driven) sampler is an innovative deep-rated (6000 m) plankton sampler that partners with the Sentry Autonomous Underwater Vehicle (AUV) to obtain paired, large-volume plankton samples at specified depths and survey lines to within 1.5 m of the seabed and with simultaneous collection of sensor data.

SyPRID uses a perforated Ultra-High-Molecular-Weight (UHMW) plastic tube to support a fine mesh net within an outer carbon composite tube (tube-within-a-tube design), with an axial flow pump located aft of the capture filter. The pump facilitates flow through the system and minimizes the bow wave at the mouth opening. The cod end, a hollow truncated cone, is also made of UHMW plastic and is designed to 'soften' the landing of zooplankton on the capture surface. SyPRID attaches as a saddle-pack to the Sentry vehicle.

Sentry itself is configured with a flight control system that enables autonomous survey paths to altitudes as low as 1.5 m. In its inaugural deployment at the Blake Ridge Seep (2160 m) on the US Atlantic Margin, SyPRID was operated for 6 h at an altitude of 5 m. It recovered plankton samples from that stratum in excellent condition and with greater larval numbers than recovered in a typical 'near-bottom' MOCNESS sample from comparable habitats and depths. The prototype SyPRID and its next generations will enable studies of plankton or other particulate distributions associated with patchy habitats, localized physico-chemical strata (e.g., above and below the thermocline), or discrete water masses at an unprecedented spatial resolution for a large volume system [1].

More information is available by contacting:
Carl Kaiser
Program Manager
Applied Ocean Physics & Engineering
NDSF AUV Operations Manager
Office Phone: +1 508 289 3269
ckaiser@whoi.edu

[1] Billings, A., Kaiser, C., Young, C. M., Hiebert, L. S., Cole, E., Wagner, J. K. S., & Van Dover, C. L. (2017). SyPRID sampler: A large-volume, high-resolution, autonomous, deep-ocean precision plankton sampling system. In Deep Sea Research Part II: Topical Studies in Oceanography (Vol. 137, pp. 297–306). Elsevier BV. https://doi.org/10.1016/j.dsr2.2016.05.007

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Database

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Dataset: TN391 Master Sample List
Deployment: EN658

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: TN391 Master Sample ListDeployment: EN658

Dataset acquisition description

Dataset Processing Description

Dataset: TN391 Master Sample List
Deployment: EN658