Dataset: Community

Name: Sampling information from community megafauna collected from different seep sites off the Costa Rica margin. Collections taken aboard R/V Atlantis in 2017 and 2018 using DSV Alvin. The 2019 collections were made aboard R/V Falkor, using the ROV Subastian.
Published: 2020-07-24
Keywords: Cold seep, methane seep, methane-seep community, Costa Rica, deep-sea megafauna, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.806673.1

Spatial Extent: N:9.6591 E:-84.2157 S:4.9786 W:-87.4596

Temporal Extent: 2017-05-22 - 2019-01-25

Project:

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

Principal Investigator:

Erik E. Cordes (Temple University, Temple)

Co-Principal Investigator:

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

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

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

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

Contact:

Erik E. Cordes (Temple University, Temple)

BCO-DMO Data Manager:

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

Version:

Version Date:

2020-07-24

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Sampling information from community megafauna collected from different seep sites off the Costa Rica margin. Collections taken aboard R/V Atlantis in 2017 and 2018 using DSV Alvin. The 2019 collections were made aboard R/V Falkor, using the ROV Subastian.

Abstract:

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2020-07-24	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.806673.1	2020-07-30

Description

Methods & Sampling

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

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 headers to comply with database requirements.

Data Files

File
community.csv (Comma Separated Values (.csv), 219.59 KB) MD5:8f26e73b75a123e0d0933727a583485f Primary data file for dataset ID 806673

More Information about this dataset

Funding Sources

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

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AT42-03_Alvin_Dives		2018-10-17	Alvin		data info
AT42-03		2018-10-17	R/V Atlantis	Erik E. Cordes (Chief Scientist)	data info
AT37-13		2017-05-20	R/V Atlantis	Erik E. Cordes (Chief Scientist)	data info
AT37-13_Alvin_Dives		2017-05-21	Alvin	Victoria J. Orphan (Principal Investigator)	data info
FK190106	FK 190106	2019-01-06	R/V Falkor	Erik E. Cordes (Chief Scientist)	data info

Instruments

Bottom Sediment Grab Samplers

Supplied Name: Grab

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:

The term used for suction sampler that attached to the submersible or ROV and collected organisms by suctioning them into an enclosed container.

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

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
Time	Time sample collected at - format HH:SS (in UTC)	unitless	time_utc
Dive	Submersible dive #	unitless	dive_id
Isotopes_analyzed	Stable isotope analysis	unitless	sample_descrip
Species	Species	unitless	species
Phylum	Phylum	unitless	phylum
Order	Order	unitless	order
Count	Number of organisms generated	unitless	sample_descrip
Measured	Morphometrics complete	unitless	sample_descrip
Carapace_length	Length of carapace for crustaceans	millimeter (mm)	length
Collected_in	Instrument/box collected in	unitless	sample_descrip
Tentative_ID	ID given on board the ship	unitless	sample
Genus	Genus	unitless	genus
Barcoded	Genetic barcodes generated	unitless	sample_descrip
Eggs_present	Gametes present when collected	unitless	sample_descrip
Family	Family	unitless	family
Location	Dive location	unitless	station
Date	Date sample collected on - format YYYY-MM-DD (in UTC)	unitless	date_utc
Cruise_number	Cruise code #	unitless	cruise_id
Class	Class	unitless	class
Longitude	Longitude of sample - west is negative	decimal degrees	lon
Latitude	Latitude of sample - south is negative	decimal degrees	lat
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
Depth	Depth sample collected at	meter (m)	depth

Database

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Dataset: Community