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Title Sum-
Institution Dataset ID
   set  data   graph     files  public Experiment details for invertebrate larvae electrophysiology    ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_779387

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 Detailed methods can be found in McCormick, et al., 2019.

Briefly, the time series test recorded electroretinogram (ERG) responses to a
1 s square step of light at a constant irradiance of 3.56 \u03bcmol photons
m\u22122 s\u22121 repeated every 20 s, providing a nearly continuous measure
of ERG response in a tethered, live larva during the experimental manipulation
of partial pressure of oxygen (pO2). There was a constant flow of pH-buffered
sterile seawater in the chamber where the larva was held, and after a brief
period in \u201cnormoxia\u201d (surface-ocean oxygen levels), the pO2 was
decreased, and then held at a low pO2 before re-oxygenating the solution. This
dataset shows additional experimental details for the \u201cTimeSeries\u201d
and \u201cOxygenMetrics_Vision\u201d datasets, including the original
experiment name (that can be matched with the experiment name from the other
datasets), the time periods for each oxygen exposure, and the pH and
temperature of the experiments.

Oxygen was measured using a Microx4 (PreSens) oxygen meter and a Pst-7 oxygen
optode probe.

attribute NC_GLOBAL awards_0_award_nid String 775842
attribute NC_GLOBAL awards_0_award_number String OCE-1829623
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1829623 (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 Experiment metrics
PI: Lisa A. Levin
Data Version 1: 2019-10-29
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 2019-10-23T16:26:05Z
attribute NC_GLOBAL date_modified String 2019-11-01T15:44:28Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.779387.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/779387 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String O2 microsensor
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Oxygen was measured using a Microx4 (PreSens) oxygen meter and a Pst-7 oxygen optode probe.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 779725
attribute NC_GLOBAL instruments_0_description String A miniaturized Clark-type dissolved oxygen instrument, including glass micro-sensors with minute tips (diameters ranging from 1 to 800 um). A gold or platinum sensing cathode is polarized against an internal reference and, driven by external partial pressure, oxygen from the environment penetrates through the sensor tip membrane and is reduced at the sensing cathode surface. A picoammeter converts the resulting reduction current to a signal. The size of the signal generated by the electrode is proportional to the flux of oxygen molecules to the cathode.The sensor also includes a polarized guard cathode, which scavenges oxygen in the electrolyte, thus minimizing zero-current and pre-polarization time.With the addition of a meter and a sample chamber, the respiration of a small specimen can be measured. Example: Strathkelvin Inst. http://www.strathkelvin.com
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/351/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Oxygen Microelectrode Sensor
attribute NC_GLOBAL instruments_0_instrument_nid String 701
attribute NC_GLOBAL keywords String average, bco, bco-dmo, biological, change, chemical, data, dataset, decay, dmo, erddap, exp, experiment, Experiment_Name, irradiance, low, Low_O2, Low_O2_Min, management, max, min, name, normoxia, Normoxia_O2, Normoxia_Time, O2, O2_Change, O2_Change_Time, O2_Decay, oceanography, office, oxygen, preliminary, species, stimulus, Stimulus_Irradiance, Temp_Avg, Temp_Max, Temp_Min, temperature, time, total, Total_Exp_Time
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/779387/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/779387 (external link)
attribute NC_GLOBAL param_mapping String {'779387': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/779387/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of California-San Diego
attribute NC_GLOBAL people_0_affiliation_acronym String UCSD
attribute NC_GLOBAL people_0_person_name String Lisa A Levin
attribute NC_GLOBAL people_0_person_nid String 51242
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 University of California-San Diego
attribute NC_GLOBAL people_1_affiliation_acronym String UCSD
attribute NC_GLOBAL people_1_person_name String Nicholas Oesch
attribute NC_GLOBAL people_1_person_nid String 775846
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Karen Soenen
attribute NC_GLOBAL people_2_person_nid String 748773
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL project String Vision under hypoxia
attribute NC_GLOBAL projects_0_acronym String Vision under hypoxia
attribute NC_GLOBAL projects_0_description String NSF abstract:
Oxygen is being lost in the ocean worldwide as a result of ocean warming and the input of nutrients from land. Vision requires a large amount of oxygen, and may be less effective or require more light when oxygen is in short supply. This is especially true for active marine animals with complex eyes and visual capabilities, including active arthropods (crabs), cephalopods (squid), and fish. The California coastal waters exhibit a sharp drop in oxygen and light with increasing water depth. This project examines how visual physiology and ecology in young (larval) highly visual marine animals respond to oxygen loss, with a focus on key fisheries and aquaculture species. Experiments and observations will test the hypothesis that oxygen stress will change the light required for these organisms to see effectively, influencing the water depths where they can live and survive. The project will provide interdisciplinary experiences to students and an early career scientist and inform both the public (through outreach at the Birch Aquarium at Scripps Institution of Oceanography) and policy makers about the effects of oxygen decline in the ocean.
Negative effects of oxygen loss on vision have been described for humans and other terrestrial organisms, but never in the marine environment, despite the large changes in oxygen that can occur with depth and over time in the ocean, and the high metabolic demand of visual systems. This project will test the effects of low oxygen on vision in 3 combinations of eye design and photo-transduction mechanisms: compound eye with rhabdomeric photoreceptors (arthropods), simple eye with rhabdomeric photoreceptors (cephalopods), and simple eye with ciliary photoreceptors (fish). A series of oxygen- and light-controlled laboratory experiments will be conducted on representative taxa of each group including the tuna crab, Pleuroncodes planipes; the market squid, Doryteuthis opalescens, and the white sea bass, Atractoscion nobilis. In vivo electrophysiology and behavioral phototaxis experiments will identify new oxygen metrics for visual physiology and function, and will be compared to metabolic thresholds determined in respiration experiments. Hydrographic data collected over 3 decades by the CalCOFI program in the Southern California Bight will be evaluated with respect to visual and metabolic limits to determine the consequences of oxygen variation on the critical luminoxyscape (range of oxygen and light conditions required for visual physiology and function in target species) boundary in each species. Findings for the three vision-based functional groups may test whether oxygen-limited visual responses offer an additional explanation for the shoaling of species distributions among highly visual pelagic taxa in low oxygen, and will help to focus future research efforts and better understand the stressors contributing to habitat compression with expanding oxygen loss in the ocean.
This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
attribute NC_GLOBAL projects_0_end_date String 2020-09
attribute NC_GLOBAL projects_0_geolocation String Southern California Bight, Northeast Pacific Ocean
attribute NC_GLOBAL projects_0_name String Vision-mediated influence of low oxygen on the physiology and ecology of marine larvae
attribute NC_GLOBAL projects_0_project_nid String 775843
attribute NC_GLOBAL projects_0_start_date String 2018-10
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 subsetVariables String Stimulus_Irradiance
attribute NC_GLOBAL summary String Experiment Details for invertebrate larvae electrophysiology
attribute NC_GLOBAL title String Experiment details for invertebrate larvae electrophysiology
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Species   String  
attribute Species bcodmo_name String unknown
attribute Species description String Species name
attribute Species long_name String Species
attribute Species units String unitless
variable Experiment_Name   String  
attribute Experiment_Name bcodmo_name String exp_id
attribute Experiment_Name description String Original experiment name that can be linked back to raw datafile collected in Igor.
attribute Experiment_Name long_name String Experiment Name
attribute Experiment_Name units String unitless
variable Normoxia_Time   float  
attribute Normoxia_Time _FillValue float NaN
attribute Normoxia_Time actual_range float 17.65, 54.85
attribute Normoxia_Time bcodmo_name String dissolved Oxygen
attribute Normoxia_Time description String Total time (in minutes) that was spend at 100-105% saturation oxygen before oxygen decline. NA indicates there were no visual recordings in normoxia.
attribute Normoxia_Time long_name String Normoxia Time
attribute Normoxia_Time units String minute (min)
variable O2_Decay   float  
attribute O2_Decay _FillValue float NaN
attribute O2_Decay actual_range float 22.43, 90.67
attribute O2_Decay bcodmo_name String incubation time
attribute O2_Decay description String Total time during which the animal was exposed to a decrease in oxygen (in minutes)
attribute O2_Decay long_name String O2 Decay
attribute O2_Decay nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AZDRZZ01/ (external link)
attribute O2_Decay units String minute (min)
variable Normoxia_O2   float  
attribute Normoxia_O2 _FillValue float NaN
attribute Normoxia_O2 actual_range float 243.13, 289.4
attribute Normoxia_O2 bcodmo_name String O2_umol_L
attribute Normoxia_O2 description String The average oxygen concentration of the normoxia (~100-105% saturation) period
attribute Normoxia_O2 long_name String Normoxia O2
attribute Normoxia_O2 units String micromole per liter (umol/L)
variable Low_O2   float  
attribute Low_O2 _FillValue float NaN
attribute Low_O2 actual_range float 37.94, 88.72
attribute Low_O2 bcodmo_name String O2_umol_L
attribute Low_O2 description String The average oxygen concentration of the lowest oxygen period
attribute Low_O2 long_name String Low O2
attribute Low_O2 units String micromole per liter (umol/L)
variable O2_Change   float  
attribute O2_Change _FillValue float NaN
attribute O2_Change actual_range float 186.57, 238.8
attribute O2_Change bcodmo_name String O2_umol_L
attribute O2_Change description String Subtracted value between the average in normoxia and the average in the low oxygen period
attribute O2_Change long_name String O2 Change
attribute O2_Change units String micromole per liter (umol/L)
variable O2_Change_Time   double  
attribute O2_Change_Time _FillValue double NaN
attribute O2_Change_Time actual_range double 2.14, 9.88
attribute O2_Change_Time bcodmo_name String O2_umol_L
attribute O2_Change_Time description String The rate of decline in oxygen (see above) over the total time when the animal was exposed to a decline in oxygen
attribute O2_Change_Time long_name String O2 Change Time
attribute O2_Change_Time units String micromole per liter per minute (umol/l per min)
variable Low_O2_Min   double  
attribute Low_O2_Min _FillValue double NaN
attribute Low_O2_Min actual_range double 0.0, 43.82
attribute Low_O2_Min bcodmo_name String incubation time
attribute Low_O2_Min description String Total time (in minutes) the animal was exposed to Low oxygen
attribute Low_O2_Min long_name String Low O2 Min
attribute Low_O2_Min nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AZDRZZ01/ (external link)
attribute Low_O2_Min units String minute (min)
variable Total_Exp_Time   float  
attribute Total_Exp_Time _FillValue float NaN
attribute Total_Exp_Time actual_range float 1.78, 3.3
attribute Total_Exp_Time bcodmo_name String duration
attribute Total_Exp_Time description String Total experiment duration in hours
attribute Total_Exp_Time long_name String Total Exp Time
attribute Total_Exp_Time units String hour (hr)
variable pH   String  
attribute pH bcodmo_name String pH
attribute pH description String pH of the seawater during the experiment. No buffer indicates the solution was not buffered and the pH might have varied during the experiment
attribute pH long_name String pH
attribute pH nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/ (external link)
attribute pH units String unitless
variable Temp_Max   float  
attribute Temp_Max _FillValue float NaN
attribute Temp_Max actual_range float 14.2, 16.9
attribute Temp_Max bcodmo_name String temperature
attribute Temp_Max description String Maximum temperature of the experiment
attribute Temp_Max long_name String Temp Max
attribute Temp_Max units String degrees Celsius (C
variable Temp_Min   float  
attribute Temp_Min _FillValue float NaN
attribute Temp_Min actual_range float 13.0, 15.4
attribute Temp_Min bcodmo_name String temperature
attribute Temp_Min description String Minimum temperature of the experiment
attribute Temp_Min long_name String Temp Min
attribute Temp_Min units String degrees Celsius (C
variable Temp_Avg   double  
attribute Temp_Avg _FillValue double NaN
attribute Temp_Avg actual_range double 13.8, 16.2
attribute Temp_Avg bcodmo_name String temperature
attribute Temp_Avg description String Mean temperature of the experiment
attribute Temp_Avg long_name String Temp Avg
attribute Temp_Avg units String degrees Celsius (C
variable Stimulus_Irradiance   float  
attribute Stimulus_Irradiance _FillValue float NaN
attribute Stimulus_Irradiance actual_range float 3.56, 3.56
attribute Stimulus_Irradiance bcodmo_name String irradiance
attribute Stimulus_Irradiance description String Irradiance of the light stimulus (LED 525 nm)
attribute Stimulus_Irradiance long_name String Stimulus Irradiance
attribute Stimulus_Irradiance nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/VSRW/ (external link)
attribute Stimulus_Irradiance units String mol photons per second and square meter (mol m-2s-1)

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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