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     data   graph     files  public Mortality of L. pertusa specimens exposed to different temperatures collected on R/V Ronald
Brown in Florida from October to November 2010 (Lophelia OA project)
   ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_659092

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String All methods are fully described in:

Lunden et al. 2014 Frontiers in Marine Science \u201cAcute survivorship of the
deep-sea coral Lophelia pertusa from the Gulf of Mexico under acidification,
warming, and deoxygenation\u201d

From the Paper:

Forty-one nubbins of L. pertusa used in the experiments were collected in
November 2010 on the NOAA Ship Ronald H. Brown with ROV Jason II as part of
the \u201cLophelia II\u201d project jointly sponsored by the Bureau of Ocean
Energy Management and the NOAA Office of Ocean Exploration and Research in the
Gulf of Mexico (GoM). Permits for the collection of corals were obtained from
the U.S. Department of the Interior prior to any collection activities.
Spatially discrete coral branches were collected with the ROV and placed in
temperature-insulated bioboxes (volume = 20 l) at depth. Upon return to the
surface, corals were kept alive in 20 l aquaria in the ship\u2019s constant-
temperature room. Partial water changes were made regularly while at sea. Upon
return to port, corals were immediately transported overnight to the
laboratory on wet ice.

In the laboratory, corals were maintained in one of two 570 liter
recirculating aquaria systems at temperature 8 degrees celsius and salinity 35
ppt (Lunden et al., 2014). Regular partial water changes (15\u201320%) were
performed with seawater made using Instant Ocean\u00a0sea salt. Submersible
power heads were placed in each holding tank to ensure water movement and
turbulence sufficient to cause swaying of coral polyps. Corals were fed three
times weekly using a combination of MarineSnow\u00a0PlanktonDiet (Two Little
Fishies, Miami Gardens, FL) and freshly hatched Artemia nauplii.

Survivorship was assessed by daily observations of polyp tissue presence and
behavior. Final survivorship counts were taken 3 to 4 days following the end
of each treatment after transfer to the maintenance tank. Survivorship is
reported as percent cumulative mortality.

Net calcification was measured using the buoyant weight technique (Davies,
1989). Coral nubbins were buoyantly weighed at the start and end of each
experimental period (days eight and fifteen) using a Denver Instruments SI-64
analytical balance (d = 0.1mg, Fisher Scientific, Waltham, MA). A weighing
chamber was constructed using 1/2\u201d plexiglass to prevent disturbances
from air movement during weighing. Each coral nubbin was transported
individually from its respective aquarium to the weighing chamber in a four-
liter Pyrex\u00a0beaker and suspended from the balance. The buoyant weight was
recorded after the coral nubbin stabilized, typically 2 min. Each coral nubbin
was weighed three times to determine measurement precision (2\u20133 mg).
Seawater density was determined in each aquarium by buoyantly weighing a 2.5
cm^2 aluminum block with known density (2.7 g/cm^\u22123). Coral weight in air
(i.e., dry weight) was calculated by the following equation:\u00a0

Wa = Ww / (1\u2212 (Dw/SD))\u00a0

Where
Wa = coral weight in air (dry weight)\u00a0
Ww = coral weight in water (buoyant weight)\u00a0
Dw = density of seawater\u00a0
SD = coral skeletal density (= 2.82 g/cm^\u22123, Lunden et al.,
2013).\u00a0

Coral growth rate is reported as percent growth per day (%/d\u22121), which
was calculated by the equation:

Gt = 100 \u00d7 (Mt2 \u2212 Mt1)/(Mt1(T2 \u2212T1))

Where
Gt =growth rate as %/d^\u22121\u00a0
Mt2 = mass (mg, dry weight) at time 2 (end of experimental period, day
15)\u00a0
Mt1= mass (mg, dry weight) at time 1 (start of experimental period, day 8)
T2 = time 2 (end of experimental period, day 15)\u00a0
T1= time 1 (start of experimental period, day 8)
attribute NC_GLOBAL awards_0_award_nid String 54992
attribute NC_GLOBAL awards_0_award_number String OCE-1220478
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1220478 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Temperature data from Lophelia pertusa experiments
Erik Cordes, PI
Version 16 September 2016
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2016-09-19T23:31:36Z
attribute NC_GLOBAL date_modified String 2019-05-13T14:23:55Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.659092.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/659092 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Water Temp Sensor
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Indicates water temperature
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 659595
attribute NC_GLOBAL instruments_0_description String General term for an instrument that measures the temperature of the water with which it is in contact (thermometer).
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/134/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Water Temperature Sensor
attribute NC_GLOBAL instruments_0_instrument_nid String 647
attribute NC_GLOBAL instruments_0_supplied_name String Temperature sensor
attribute NC_GLOBAL instruments_1_acronym String Salinity Sensor
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Indicates salinity of water
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 659596
attribute NC_GLOBAL instruments_1_description String Category of instrument that simultaneously measures electrical conductivity and temperature in the water column to provide temperature and salinity data.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/350/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Salinity Sensor
attribute NC_GLOBAL instruments_1_instrument_nid String 710
attribute NC_GLOBAL instruments_1_supplied_name String Salinity sensor
attribute NC_GLOBAL instruments_2_acronym String Aquarium
attribute NC_GLOBAL instruments_2_dataset_instrument_description String 20 L aquaria were used on the ship and 570 L recirculating aquaria systems were used in the lab
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 659593
attribute NC_GLOBAL instruments_2_description String Aquarium - a vivarium consisting of at least one transparent side in which water-dwelling plants or animals are kept
attribute NC_GLOBAL instruments_2_instrument_name String Aquarium
attribute NC_GLOBAL instruments_2_instrument_nid String 711
attribute NC_GLOBAL instruments_2_supplied_name String Aquarium
attribute NC_GLOBAL instruments_3_acronym String Scale
attribute NC_GLOBAL instruments_3_dataset_instrument_description String Used for buoyant weights; d = 0.1mg, Fisher Scientific
attribute NC_GLOBAL instruments_3_dataset_instrument_nid String 659594
attribute NC_GLOBAL instruments_3_description String An instrument used to measure weight or mass.
attribute NC_GLOBAL instruments_3_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB13/ (external link)
attribute NC_GLOBAL instruments_3_instrument_name String Scale
attribute NC_GLOBAL instruments_3_instrument_nid String 714
attribute NC_GLOBAL instruments_3_supplied_name String Denver Instruments SI-64 Analytical Balance
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, data, dataset, density, dmo, earth, Earth Science > Oceans > Salinity/Density > Salinity, end, erddap, individual, live, livePolypsNum_end, livePolypsNum_start, management, num, ocean, oceanography, oceans, office, percent, percent_survivorship, polyps, practical, preliminary, salinity, science, sea, sea_water_practical_salinity, seawater, start, survivorship, temp_treatment, temperature, treatment, water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/659092/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/659092 (external link)
attribute NC_GLOBAL param_mapping String {'659092': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/659092/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Temple University
attribute NC_GLOBAL people_0_affiliation_acronym String Temple
attribute NC_GLOBAL people_0_person_name String Erik E Cordes
attribute NC_GLOBAL people_0_person_nid String 51539
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Temple University
attribute NC_GLOBAL people_1_affiliation_acronym String Temple
attribute NC_GLOBAL people_1_person_name String Erik E Cordes
attribute NC_GLOBAL people_1_person_nid String 51539
attribute NC_GLOBAL people_1_role String Contact
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL people_2_affiliation String Lock Haven University
attribute NC_GLOBAL people_2_affiliation_acronym String LHU
attribute NC_GLOBAL people_2_person_name String Dr Jay Lunden
attribute NC_GLOBAL people_2_person_nid String 659079
attribute NC_GLOBAL people_2_role String Contact
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_3_person_name String Hannah Ake
attribute NC_GLOBAL people_3_person_nid String 650173
attribute NC_GLOBAL people_3_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL project String Lophelia OA
attribute NC_GLOBAL projects_0_acronym String Lophelia OA
attribute NC_GLOBAL projects_0_description String The Gulf of Mexico deep water ecosystems are threatened by the persistent threat of ocean acidification. Deep-water corals will be among the first to feel the effects of this process, in particular the deep-water scleractinians that form their skeleton from aragonite. The continued shoaling of the aragonite saturation horizon (the depth below which aragonite is undersaturated) will place many of the known, and as yet undiscovered, deep-water corals at risk in the very near future. The most common deep-water framework-forming scleractinian in the world's oceans is Lophelia pertusa. This coral is most abundant in the North Atlantic, where aragonite saturation states are relatively high, but it also creates extensive reef structures between 300 and 600 m depth in the Gulf of Mexico where aragonite saturation states were previously unknown. Preliminary data indicate that pH at this depth range is between 7.85 and 8.03, and the aragonite saturation state is typically between 1.28 and 1.69. These are the first measurements of aragonite saturation state for the deep Gulf of Mexico, and are among the lowest Aragonite saturation state yet recorded for framework-forming corals in any body of water, at any depth.
This project will examine the effects of ocean acidification on L. pertusa, combining laboratory experiments, rigorous oceanographic measurements, the latest genome and transcriptome sequencing platforms, and quantitative PCR and enzyme assays to examine changes in coral gene expression and enzyme activity related to differences in carbonate chemistry. Short-term and long-term laboratory experiments will be performed at Aragonite saturation state of 1.45 and 0.75 and the organismal (e.g., survivorship and calcification rate) and genetic (e.g., transcript abundance) responses of the coral will be monitored. Genomic DNA and RNA will be extracted, total mRNA purified, and comprehensive and quantitative profiles of the transcriptome generated using a combination of 454 and Illumina sequencing technologies. Key genes in the calcification pathways as well as other differentially expressed genes will be targeted for specific qPCR assays to verify the Illumina sequencing results. On a research cruise, L. pertusa will be sampled (preserved at depth) along a natural gradient in carbonate chemistry, and included in the Illumina sequencing and qPCR assays. Water samples will be obtained by submersible-deployed niskin bottles adjacent to the coral collections as well as CTD casts of the water column overlying the sites. Water samples will be analyzed for pH, alkalinity, nitrates and soluble reactive phosphorus. These will be used in combination with historical data in a model to hindcast Aragonite saturation state.
This project will provide new physiological and genetic data on an ecologically-significant and anthropogenically-threatened deepwater coral in the Gulf of Mexico. An experimental system, already developed by the PIs, offers controlled conditions to test the effect of Aragonite saturation state on calcification rates in scleractinians and, subsequently, to identify candidate genes and pathways involved in the response to reduced pH and Aragonite saturation state. Both long-term and population sampling experiments will provide additional transcriptomic data and specifically investigate the expression of the candidate genes. These results will contribute to our understanding of the means by which scleractinians may acclimate and acclimatize to low pH, alkalinity, and Aragonite saturation state. Furthermore, the investigators will continue a time series of oceanographic measurements of the carbonate system in the Gulf of Mexico, which will allow the inclusion of this significant body of water in models of past and future ocean acidification scenarios.
attribute NC_GLOBAL projects_0_end_date String 2015-08
attribute NC_GLOBAL projects_0_geolocation String Northern Gulf of Mexico
attribute NC_GLOBAL projects_0_name String Physiological and genetic responses of the deep-water coral, Lophelia pertusa, to ongoing ocean acidification in the Gulf of Mexico
attribute NC_GLOBAL projects_0_project_nid String 2224
attribute NC_GLOBAL projects_0_start_date String 2012-09
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Mortality of L. pertusa specimens exposed to different temperatures collected on R/V Ronald Brown in Florida from October to November 2010 (Lophelia OA project)
attribute NC_GLOBAL title String Mortality of L. pertusa specimens exposed to different temperatures collected on R/V Ronald Brown in Florida from October to November 2010 (Lophelia OA project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable temp_treatment   byte  
attribute temp_treatment _FillValue byte 127
attribute temp_treatment actual_range byte 8, 16
attribute temp_treatment bcodmo_name String treatment
attribute temp_treatment description String Warming experiment temperature treatment levels
attribute temp_treatment long_name String Temp Treatment
attribute temp_treatment units String celsius
variable individual   byte  
attribute individual _FillValue byte 127
attribute individual actual_range byte 2, 30
attribute individual bcodmo_name String individual
attribute individual description String Individual ID number
attribute individual long_name String Individual
attribute individual units String unitless
variable temperature   float  
attribute temperature _FillValue float NaN
attribute temperature actual_range float 8.06, 16.3
attribute temperature bcodmo_name String temperature
attribute temperature description String Water temperature
attribute temperature long_name String Temperature
attribute temperature units String celsius
variable salinity   float  
attribute salinity _FillValue float NaN
attribute salinity actual_range float 35.0, 35.75
attribute salinity bcodmo_name String sal
attribute salinity colorBarMaximum double 37.0
attribute salinity colorBarMinimum double 32.0
attribute salinity description String Salinity of water
attribute salinity long_name String Sea Water Practical Salinity
attribute salinity nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/ (external link)
attribute salinity units String PPT
variable livePolypsNum_start   byte  
attribute livePolypsNum_start _FillValue byte 127
attribute livePolypsNum_start actual_range byte 2, 10
attribute livePolypsNum_start bcodmo_name String count
attribute livePolypsNum_start description String Number of live polyps at the start of experiment
attribute livePolypsNum_start long_name String Live Polyps Num Start
attribute livePolypsNum_start units String count
variable livePolypsNum_end   byte  
attribute livePolypsNum_end _FillValue byte 127
attribute livePolypsNum_end actual_range byte 0, 10
attribute livePolypsNum_end bcodmo_name String count
attribute livePolypsNum_end description String Number of live polyps at the end of experiment
attribute livePolypsNum_end long_name String Live Polyps Num End
attribute livePolypsNum_end units String count
variable percent_survivorship   float  
attribute percent_survivorship _FillValue float NaN
attribute percent_survivorship actual_range float 0.0, 100.0
attribute percent_survivorship bcodmo_name String unknown
attribute percent_survivorship colorBarMaximum double 100.0
attribute percent_survivorship colorBarMinimum double 0.0
attribute percent_survivorship description String Percent survivorship of polyps
attribute percent_survivorship long_name String Percent Survivorship
attribute percent_survivorship units String percent

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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