BCO-DMO ERDDAP
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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 Mussels (M. trossulus) were collected in May 2012 from Argyle Creek, San Juan\nIsland, WA (48.52\\u02da N, 123.01\\u02da W) and held in a mesh box submerged\nunder the dock at Friday Harbor Laboratories (FHL), San Juan Island, WA for up\nto 14 d. Mussels were placed in experimental mesocosms in the Ocean\nAcidification Experimental Laboratory (OAEL) at FHL as described in\nO\\u2019Donnell et al. (2013) and Timmins-Schiffman et al. (2012). Briefly,\nmanipulations of pH were made by bubbling CO2 into a 150 L temperature-\ncontrolled seawater reservoir, that supplied water to eight 3.5 L chambers at\na turnover rate of 50 ml min-1. Air was bubbled into the reservoir to maintain\n100% oxygen saturation and submersible pumps (model number P396, Annex Depot,\nSacramento, CA) provided mixing in the chambers at 3.8 L min-1. The bottom of\neach chamber was lined with autoclaved pebbles, collected from an FHL beach,\nto provide a substrate for byssal thread attachment. pH and temperature were\nmonitored continuously in each water reservoir with a Durafet pH and\ntemperature probe and the full carbonate chemistry of the system evaluated\nwith DIC and Total alkalinity measurements once during each trial. Mussels\nwere acclimated to their treatment temperatures in ambient pH (~7.8) over 9 d,\nramping temperature up no more than 2\\u02daC per day, and fed a maintenance\nlevel of Shellfish Diet 1800 (6 g l-1 day-1, Reed Mariculture, Campell, CA,\nUSA).\n \nThe twelve independent temperature x pCO2 treatments spanned the range of\nlocal marine conditions (Newcomb, 2015; George et al., 2019; temperature at\n10\\u02daC, 18\\u02daC, or 25\\u02daC and pCO2 at 400, 750, 1200, or 2500\n\\u00b5atm). Each mussel was trimmed of external byssus before placement in an\nexperimental treatment for 3 d, sufficient time to produce new mature byssal\nthreads (Bell & Gosline 1996) while minimizing the effect of treatment on\nmussel condition. Mussels were starved during the 3 d trials to minimize\nchanges in chamber water chemistry due to food addition and to reduce fouling.\nThree trials were conducted in succession to replicate treatments over time,\nincreasing sample size (n=8 x 3) for each temperature*pCO2 treatment.\n \nAt the end of each trial, mussels and the rocks to which they had attached\nwith byssal threads were removed from the chambers. The entire byssus was\ndissected from each mussel and stored air-dried for up to 20 days. Byssus was\nrehydrated in seawater prior to testing, a method that does not alter the\nmechanical properties of the byssal threads (Brazee, 2004). The number of\nbyssal threads each mussel produced was counted, and one thread was\nhaphazardly chosen for mechanical testing following the procedure of Bell &\nGosline (1996). Briefly, an individual thread was clamped with submersible\npneumatic grips on either end by holding the proximal byssal stem between\ncardstock with cyanoacrylate glue and affixing the distal plaque with attached\nrock to an aluminum T-bar with epoxy. An Instron 5565 tensometer (Norwood MA,\nUSA), extended the thread at a rate of 10 mm min-1 in a temperature-controlled\nwater bath (3130-100 BioPuls Bath, Instron, Norwood, MA, USA) until failure.\nThe tensometer measured force (\\u00b110-3 N) and extension (\\u00b1 10-3 mm) at\n10 Hz. Tests were performed in seawater with a pH of 7.8 and the relevant\ntreatment temperature.\n \nPull to failure mechanical tests provided estimates of thread breaking force,\nyield force, extensibility, initial stiffness and failure location (Bell &\nGosline 1996). Yield, due to quasi-plastic deformation in the distal region,\nwas identified as the point where the initial slope of the force-extension\ncurve decreased by 40%. Extensibility was calculated by dividing thread\nextension at failure by initial length and initial stiffness was determined\nfrom the initial slope of the force extension curve. The location of failure\n(proximal, plaque, and/or distal region) was noted and threads were retested\nto quantify the breaking force of each remaining region. Tests that broke at\nthe grips were considered underestimates and were discarded.\n \nThe cross-sectional area of the proximal region was measured to evaluate\nmorphological differences among treatments. The elliptical area was estimated\nfrom measures of the major and minor axes (+ 1 um using a dissecting\nmicroscope (Brazee & Carrington 2006). Proximal breaking stress (N mm-2), a\nmaterial property, was calculated as proximal breaking force divided by\nproximal area. Thread surface structure was examined using a scanning electron\nmicroscope (FEI Sirion XL30 SEM, Hillsboro, OR).\n \nWhole mussel attachment strength was estimated using two mathematical models\ndeveloped by Bell & Gosline (1996). Each model assumes a mussel is anchored\nwith a constant thread number (n=50) arranged in a circle. The normal model\nestimates dislodgment force perpendicular to the substrate (e.g, lift); all\nthreads are engaged and extend until they reach their maximum force. The\nparallel model estimates dislodgement force for an animal pulled parallel to\nthe substrate (e.g., drag); threads on the upstream side are the first in\ntension, yield and extend until they reach maximum force and break, while more\nthreads are recruited into tension until they have all broken. Additionally,\nwe modified each model to incorporate the variation in thread production\nacross treatments. Because thread production was measured for only three days,\ntreatment means were scaled to a maximum value of 50 threads.\n \nDetailed methods and results are provided in Newcomb, 2015 and Newcomb et al.,\n2019\n \nLocation: Friday Harbor Laboratories, Friday Harbor WA
attribute NC_GLOBAL awards_0_award_nid String 55120
attribute NC_GLOBAL awards_0_award_number String OCE-1041213
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1041213 (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 Mary Beth Saffo
attribute NC_GLOBAL awards_0_program_manager_nid String 51608
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Thread mechanics \n  PI: Emily Carrington  \n  Data Version 1: 2019-07-24
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 2019-07-22T19:58:03Z
attribute NC_GLOBAL date_modified String 2019-08-06T19:06:51Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.773556.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/773556 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Materials Testing System
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Instron’s (Norwood, MA) electromechanical testing systems are used to test a wide range of materials in tension or compression. The series 5560 are dual column table top models, the 5565 model has a load capacity of 5 kN (1125 lbf).
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 773638
attribute NC_GLOBAL instruments_0_description String Testing systems that are used to test a wide range of\nmaterials in tension or compression.
attribute NC_GLOBAL instruments_0_instrument_name String Materials Testing System
attribute NC_GLOBAL instruments_0_instrument_nid String 718
attribute NC_GLOBAL instruments_0_supplied_name String Instron 5565 load frame
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, breaking, Breaking_Ext, Breaking_Force, Breaking_Stress, carbon, carbon dioxide, chemical, chemistry, co2, data, dataset, diam, dioxide, distal, Distal_Diam, Distal_Force, dmo, earth, Earth Science > Oceans > Ocean Chemistry > pH, erddap, ext, force, Location, major, management, minor, mod, modulus, mussel, Mussel_ID, ocean, oceanography, oceans, office, pCO2_Target, plaque, Plaque_Force, preliminary, prox, Prox_Major, Prox_Minor, proximal, Proximal_Force, reported, scale, science, sea, sea_water_ph_reported_on_total_scale, seawater, stiffness, stress, target, Temp, temperature, thread, Thread_Ext, Thread_Stiffness, total, treatment, Treatment_ID, trial, water, yield, youngs, Youngs_Mod
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/773556/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/773556 (external link)
attribute NC_GLOBAL param_mapping String {'773556': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/773556/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Washington
attribute NC_GLOBAL people_0_affiliation_acronym String UW
attribute NC_GLOBAL people_0_person_name String Emily Carrington
attribute NC_GLOBAL people_0_person_nid String 51609
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 Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_1_person_name String Karen Soenen
attribute NC_GLOBAL people_1_person_nid String 748773
attribute NC_GLOBAL people_1_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL project String OA - Ecomaterials Perspective
attribute NC_GLOBAL projects_0_acronym String OA - Ecomaterials Perspective
attribute NC_GLOBAL projects_0_description String Effects of Ocean Acidification on Coastal Organisms: An Ecomaterials Perspective\nThis award will support researchers based at the University of Washington's Friday Harbor Laboratories. The overall focus of the project is to determine how ocean acidification affects the integrity of biomaterials and how these effects in turn alter interactions among members of marine communities. The research plan emphasizes an ecomaterial approach; a team of biomaterials and ecomechanics experts will apply their unique perspective to detail how different combinations of environmental conditions affect the structural integrity and ecological performance of organisms. The study targets a diversity of ecologically important taxa, including bivalves, snails, crustaceans, and seaweeds, thereby providing insight into the range of possible biological responses to future changes in climate conditions. The proposal will enhance our understanding of the ecological consequences of climate change, a significant societal problem.\nEach of the study systems has broader impacts in fields beyond ecomechanics. Engineers are particularly interested in biomaterials and in each system there are materials with commercial potential. The project will integrate research and education by supporting doctoral student dissertation research, providing undergraduate research opportunities via three training programs at FHL, and summer internships for talented high school students, recruited from the FHL Science Outreach Program. The participation of underrepresented groups will be broadened by actively recruiting URM and female students. Results will be disseminated in a variety of forums, including peer-reviewed scientific publications, undergraduate and graduate course material, service learning activities in K-8 classrooms, demonstrations at FHL's annual Open House, and columns for a popular science magazine.
attribute NC_GLOBAL projects_0_end_date String 2013-08
attribute NC_GLOBAL projects_0_geolocation String Friday Harbor, WA
attribute NC_GLOBAL projects_0_name String Effects of Ocean Acidification on Coastal Organisms: An Ecomaterials Perspective
attribute NC_GLOBAL projects_0_project_nid String 2250
attribute NC_GLOBAL projects_0_project_website String http://depts.washington.edu/fhl/oael.html (external link)
attribute NC_GLOBAL projects_0_start_date String 2010-09
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 These data were used in a structural analysis study to evaluate how pCO2 and an additional stressor, elevated temperature, influences byssal thread quality and production. Mussels (M. trossulus) were collected in May 2012 from Argyle Creek, San Juan Island, WA (48.52\\u02da N, 123.01\\u02da W) and held in a mesh box submerged under the dock at Friday Harbor Laboratories (FHL), San Juan Island, WA for up to 14 d. Mussels were placed in controlled temperature and pCO2 treatments in the Ocean Acidification Experimental Laboratory (OAEL), then newly produced threads were counted and pulled to failure to determine byssus strength.
attribute NC_GLOBAL title String [Thread mechanics] - Lab study on the effect of temperature and pCO2 on mussel byssal attachment (thread mechanics) with mussels collected in May 2012 from Argyle Creek, San Juan Island, WA (48.52˚ N, 123.01˚ W) (Effects of Ocean Acidification on Coastal Organisms: An Ecomaterials Perspective)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Mussel_ID String
attribute Mussel_ID bcodmo_name String sample
attribute Mussel_ID description String Mussel sample identifier
attribute Mussel_ID long_name String Mussel ID
attribute Mussel_ID nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute Mussel_ID units String unitless
variable Temp byte
attribute Temp _FillValue byte 127
attribute Temp actual_range byte 10, 25
attribute Temp bcodmo_name String temperature
attribute Temp description String Temperature
attribute Temp long_name String Temperature
attribute Temp units String degrees Celcius (°C)
variable pH float
attribute pH _FillValue float NaN
attribute pH actual_range float 7.3, 8.2
attribute pH bcodmo_name String pH
attribute pH colorBarMaximum double 9.0
attribute pH colorBarMinimum double 7.0
attribute pH description String pH (total scale)
attribute pH long_name String Sea Water Ph Reported On Total Scale
attribute pH nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/ (external link)
attribute pH units String unitless
variable pCO2_Target short
attribute pCO2_Target _FillValue short 32767
attribute pCO2_Target actual_range short 400, 2500
attribute pCO2_Target bcodmo_name String pCO2
attribute pCO2_Target description String Target pCO2 level
attribute pCO2_Target long_name String P CO2 Target
attribute pCO2_Target nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PCO2C101/ (external link)
attribute pCO2_Target units String microatmosphere (uatm)
variable Treatment_ID String
attribute Treatment_ID bcodmo_name String treatment
attribute Treatment_ID description String Treatment identifier
attribute Treatment_ID long_name String Treatment ID
attribute Treatment_ID units String unitless
variable Trial byte
attribute Trial _FillValue byte 127
attribute Trial actual_range byte 1, 3
attribute Trial bcodmo_name String exp_id
attribute Trial description String Trial identifier
attribute Trial long_name String Trial
attribute Trial units String unitless
variable GI double
attribute GI _FillValue double NaN
attribute GI actual_range double 0.038091252, 0.336448598
attribute GI bcodmo_name String unknown
attribute GI description String Gonad Index
attribute GI long_name String GI
attribute GI units String unitless
variable CI float
attribute CI _FillValue float NaN
attribute CI actual_range float 1.30609E-6, 6.6623E-6
attribute CI bcodmo_name String unknown
attribute CI description String Condition Index
attribute CI long_name String CI
attribute CI units String gram per cubic millimeter (g/mm^3)
variable Distal_Diam float
attribute Distal_Diam _FillValue float NaN
attribute Distal_Diam actual_range float 0.01, 0.163
attribute Distal_Diam bcodmo_name String diameter
attribute Distal_Diam description String Thread distal region diameter
attribute Distal_Diam long_name String Distal Diam
attribute Distal_Diam units String millimeter (mm)
variable Prox_Major float
attribute Prox_Major _FillValue float NaN
attribute Prox_Major actual_range float 0.058, 0.251
attribute Prox_Major bcodmo_name String length
attribute Prox_Major description String Thread proximal region major axis length
attribute Prox_Major long_name String Prox Major
attribute Prox_Major units String millimeter (mm)
variable Prox_Minor float
attribute Prox_Minor _FillValue float NaN
attribute Prox_Minor actual_range float 0.009, 0.096
attribute Prox_Minor bcodmo_name String length
attribute Prox_Minor description String Thread proximal region minor axis length
attribute Prox_Minor long_name String Prox Minor
attribute Prox_Minor units String millimeter (mm)
variable Yield float
attribute Yield _FillValue float NaN
attribute Yield actual_range float 0.03507, 0.2846
attribute Yield bcodmo_name String unknown
attribute Yield description String Thread yield force
attribute Yield long_name String Yield
attribute Yield units String Newton (N)
variable Location String
attribute Location bcodmo_name String unknown
attribute Location description String Thread failure location
attribute Location long_name String Location
attribute Location units String unitless
variable Breaking_Ext float
attribute Breaking_Ext _FillValue float NaN
attribute Breaking_Ext actual_range float 1.06652, 25.4832
attribute Breaking_Ext bcodmo_name String unknown
attribute Breaking_Ext description String Thread breaking extension
attribute Breaking_Ext long_name String Breaking Ext
attribute Breaking_Ext units String millimeter (mm)
variable Breaking_Force float
attribute Breaking_Force _FillValue float NaN
attribute Breaking_Force actual_range float 0.01569, 0.36793
attribute Breaking_Force bcodmo_name String unknown
attribute Breaking_Force description String Thread breaking force
attribute Breaking_Force long_name String Breaking Force
attribute Breaking_Force units String Newton (N)
variable Plaque_Force float
attribute Plaque_Force _FillValue float NaN
attribute Plaque_Force actual_range float 0.01569, 0.42804
attribute Plaque_Force bcodmo_name String unknown
attribute Plaque_Force description String Thread plaque breaking force
attribute Plaque_Force long_name String Plaque Force
attribute Plaque_Force units String Newton (N)
variable Proximal_Force float
attribute Proximal_Force _FillValue float NaN
attribute Proximal_Force actual_range float 0.00509, 0.44671
attribute Proximal_Force bcodmo_name String unknown
attribute Proximal_Force description String Thread proximal region breaking force
attribute Proximal_Force long_name String Proximal Force
attribute Proximal_Force units String Newton (N)
variable Distal_Force float
attribute Distal_Force _FillValue float NaN
attribute Distal_Force actual_range float -0.00138, 0.66441
attribute Distal_Force bcodmo_name String unknown
attribute Distal_Force description String Thread distal region breaking force
attribute Distal_Force long_name String Distal Force
attribute Distal_Force units String Newton (N)
variable Breaking_Stress int
attribute Breaking_Stress _FillValue int 2147483647
attribute Breaking_Stress actual_range int 2690000, 414000000
attribute Breaking_Stress bcodmo_name String unknown
attribute Breaking_Stress description String Thread breaking strength
attribute Breaking_Stress long_name String Breaking Stress
attribute Breaking_Stress units String Newton per square millimeter (N/mm^2)
variable Youngs_Mod float
attribute Youngs_Mod _FillValue float NaN
attribute Youngs_Mod actual_range float 0.05746, 1.91246
attribute Youngs_Mod bcodmo_name String unknown
attribute Youngs_Mod description String Thread Youngs modulus
attribute Youngs_Mod long_name String Youngs Mod
attribute Youngs_Mod units String Newton per square millimeter (N/mm^2)
variable Thread_Stiffness float
attribute Thread_Stiffness _FillValue float NaN
attribute Thread_Stiffness actual_range float 0.038, 1.596
attribute Thread_Stiffness bcodmo_name String unknown
attribute Thread_Stiffness description String Thread stiffness
attribute Thread_Stiffness long_name String Thread Stiffness
attribute Thread_Stiffness units String Newton per square millimeter (N/mm^2)
variable Thread_Ext float
attribute Thread_Ext _FillValue float NaN
attribute Thread_Ext actual_range float 0.112, 1.228
attribute Thread_Ext bcodmo_name String unknown
attribute Thread_Ext description String Thread extensibility
attribute Thread_Ext long_name String Thread Ext
attribute Thread_Ext units String unitless

 
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