Dataset: Mussel dataset
Deployment: AT37-13_Alvin_Dives

View Data: For data, See Dataset Metadata Page: https://www.bco-dmo.org/dataset/805488

Principal Investigator:

Erik E. Cordes (Temple University, Temple)

Co-Principal Investigator:

Lisa A. Levin (University of California-San Diego Scripps, UCSD-SIO)

Victoria J. Orphan (California Institute of Technology, Caltech)

Christopher Neil Roman (University of California-San Diego Scripps, UCSD-SIO)

Gregory Rouse (University of California-San Diego Scripps, UCSD-SIO)

Contact:

Erik E. Cordes (Temple University, Temple)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Collaborative research: Quantifying the biological, chemical, and physical linkages between chemosynthetic communities and the surrounding deep sea (Costa Rica Seeps)

Version:

Coordinated Deployments:

AT37-13

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Description

Sampling information from mussels and associated organisms collected from different seep sites off the Costa Rica margin. The collections were made aboard R/V Atlantis during 2017 and 2018 using DSV Alvin. In 2019 the collections were made aboard R/V Falkor, using the ROV Subastian. Sampling information contains length, height, width, Phylum, Class, Order, Family and Genus.

Methods & Sampling

Dataset acquisition description

Mussel samples were collected using deep sea vehicle Alvin and ROV Subastian, on R/V Atlantis and R/V Falkor. Methods used for collection involved either grabs, mussel pots, the bushmaster junior, suction apparatus or net scoops:

Mussel Pot – The mussel pot is a 12-quart aluminium-clad stainless steel pot with a twistable handle connected to a Kevlar bag insert. It is used to sample mussel beds and associated communities. The pot is deployed over the select mussel patch using the submersible or ROV manipulator, then collects the enclosed assemblage by cinching the Kevlar bag closed by turning the handle. This method allows for quantitative analysis of deep-sea mussel bed communities.
Bushmaster – Original instruments created at Penn State to collect hydrothermal vent and methane seep communities. Hydraulic rods are attached to a very fine mesh that is deployed over the tubeworm patch of interest to collect the tubeworms and associated community. Once the assemblage is enclosed, the net is cinched closed using the submersible or ROV manipulator. Like the mussel pot, this allows for quantitative collections of tubeworm communities.
Slurp – This is simply the term used for suction sampler that attached to the submersible or ROV and collected organisms by suctioning them into an enclosed container.

Data Processing Description

Dataset Processing Description

Samples were processed aboard R/V Atlantis and R/V Falkor and sent back to Temple University, PA, USA for processing

BCO-DMO processing notes:

Adjusted column names to comply with dataset requirements
Added ISO_DateTime_UTC column
Reformated time to HH:MM
Reformated date to YYYY-MM-DD

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1635219	NSF Division of Ocean Sciences

Instruments

Bottom Sediment Grab Samplers

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: Bottom Sediment Grab Samplers

Acronym: BSGS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/50/

Generic Description:

These samplers are designed to collect an accurate representative sample of the sediment bottom. The bite of the sampler should be deep enough so all depths are sampled equally. The closing mechanism is required to completely close and hold the sample as well as prevent wash-out during retrieval. Likewise, during descent the sampler should be designed to minimize disturbance of the topmost sediment by the pressure wave as it is lowered to the bottom.

Bushmaster

Supplied Description:

Original instruments created at Penn State to collect hydrothermal vent and methane seep communities. Hydraulic rods are attached to a very fine mesh that is deployed over the tubeworm patch of interest to collect the tubeworms and associated community. Once the assemblage is enclosed, the net is cinched closed using the submersible or ROV manipulator. Like the mussel pot, this allows for quantitative collections of tubeworm communities.

Instrument Type

Generic Name: Bushmaster

Generic Description:

Bushmaster samplers are original instruments created at Penn State to collect hydrothermal vent and methane seep communities. Hydraulic rods are attached to a very fine mesh that is deployed over the tubeworm patch of interest to collect the tubeworms and associated community. Once the assemblage is enclosed, the net is cinched closed using the submersible or ROV manipulator. This allows for quantitative collections of tubeworm communities.

Mussel Pot

Supplied Description:

The mussel pot is a 12-quart aluminium-clad stainless steel pot with a twistable handle connected to a Kevlar bag insert. It is used to sample mussel beds and associated communities. The pot is deployed over the select mussel patch using the submersible or ROV manipulator, then collects the enclosed assemblage by cinching the Kevlar bag closed by turning the handle. This method allows for quantitative analysis of deep-sea mussel bed communities.

Instrument Type

Generic Name: Mussel Pot

Generic Description:

Sediment suction sampler

Supplied Name: Slurp

Supplied Description:

Instrument Type

Generic Name: Sediment suction sampler

Generic Description:

Devices that collect samples from the sediment layer surface using suction. The mechanism of suction can be accomplished by either vacuum, by pressure difference between the air inside the sampler and surrounding water, by pumping water directly into the sampler, or by under pressure air to elevate the sediment inside the sampler. Devices are typically diver- or remotely-operated.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise_number	Cruise code #	unitless	cruise_id
Sample_number	Sample number assigned on board	unitless	sample
Associated_sample	Related sample code if collected together	unitless	sample
Dive	Submersible dive #	unitless	dive_id
Location	Dive location	unitless	station
Latitude	Latitude of sample - south is negative	decimal degrees	lat
Longitude	Longitude of sample - west is negative	decimal degrees	lon
Depth	Depth sample collected at	meter (m)	depth
Date	Date sample collected on - format YYYY-MM-DD (in UTC)	unitless	date_utc
Time	Time sample collected at - format HH:SS (in UTC)	unitless	time_utc
Collected_in	Instrument/box collected in	unitless	sample_descrip
Tentative_ID	ID given on board the ship	unitless	sample
Length	Organism length	centimeter (cm)	length
Height	Organism height	centimeter (cm)	height
Width	Organism width	centimeter (cm)	width
Phylum	Phylum	unitless	phylum
Class	Class	unitless	class
Order	Order	unitless	order
Family	Family	unitless	family
Genus	Genus	unitless	genus
Species	Species	unitless	species
ISO_DateTime_UTC	ISO format of Date and Time in UTC (YYYY-MM-DDTHH:MMZ)	yyyy-MM-dd'T'HH:mm'Z'	ISO_DateTime_UTC

Database

Contribute Data

Dataset: Mussel dataset
Deployment: AT37-13_Alvin_Dives

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Mussel datasetDeployment: AT37-13_Alvin_Dives

Dataset acquisition description

Dataset Processing Description

Dataset: Mussel dataset
Deployment: AT37-13_Alvin_Dives