http://lod.bco-dmo.org/id/dataset/840572
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2021-02-11
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Physiological observations of Euphausia pacifica after a ten-day acclimation to dissolved oxygen (DO) and pH conditions in two separate laboratory experiments.
2021-02-11
publication
2021-02-11
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-02-19
publication
https://doi.org/10.26008/1912/bco-dmo.840572.1
Julie E. Keister
University of Washington
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: McLaskey, A. K., Keister, J. E. (2021) Physiological observations of Euphausia pacifica after a ten-day acclimation to dissolved oxygen (DO) and pH conditions in two separate laboratory experiments. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-02-11 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.840572.1 [access date]
Dataset Description: <p>Experiments done at:</p>
<ul>
<li>Friday Harbor Laboratories Ocean Acidification Environmental Laboratory</li>
<li>NOAA Northwest Fisheries Science Center Mukilteo Research Station</li>
</ul> Methods and Sampling: <p>Krill for both experiments were collected from surface waters (upper 50 m) at approximately 48.01, -122.29 using a 60-cm diameter Bongo frame equipped with black 335-μm mesh nets and non-filtering cod ends towed for &lt;10 min. The contents of each cod end were immediately diluted in coolers of seawater and sorted to remove healthy euphausiids. For the pH experiment krill were collected on 23 July 2017 between 23:00-00:30, stored in 1-4 L containers at a concentration of 5 ind L-1, sealed with all air removed to eliminate splashing, and transported in coolers to the University of Washington Friday Harbor Laboratories (FHL) where they were sorted for healthy female&nbsp;<em>E. pacifica</em> (obvious ovary) and put in in experimental chambers between 06:00-08:00 on 24 July 2017. For the DO experiment krill were collected on 20 Sept 2017 between 20:00 and 21:15, krill were transported in coolers to the NOAA Mukilteo Research Station within an hour, sorted for healthy female <em>E. pacifica</em> (obvious ovary), and immediately put in experimental chambers. Krill were kept chilled (10-14 °C) at all times and were gently transferred using broad spoons to prevent damage. During experiments krill were fed Shellfish Diet 1800 (Reed Mariculture) twice per day and newly hatched <em>Artemia salina</em> (San Francisco Bay Brand) nauplii once per day. All physiological measurements were taken after 10 days of acclimation; individuals were flash frozen in liquid nitrogen after oxygen consumption was measured.</p>
<p>Experimental acclimation to pH was conducted at the FHL Ocean Acidification Environmental Laboratory, using a flow-through system with pH controlled by CO<sub>2</sub> bubbling. Target pH levels were 8.0, 7.5, and 7.2: three flow-through systems were used, one per pH treatment. Within each system, conditioned seawater was delivered to eight flow-through boxes that each contained two 500-mL mesh-sided experimental chambers with one individual krill per chamber, for a total of 16 individuals per system. Experimental systems were kept covered in black plastic to reduce light. Temperature was set to 12 °C and oxygen was maintained at ambient levels through bubbling, but not monitored.</p>
<p>Acclimation of krill to different oxygen levels in the laboratory was done at the NOAA Mukilteo Research Station in flow-through experimental systems with independent temperature, pH, and oxygen control. Target dissolved oxygen levels were 3, 5, and 9 mg DO L<sup>-1</sup>: nine systems were used, three per DO treatment, with krill held individually in a mix of both 250- and 500-mL flow-through containers within the experimental systems. Temperature was maintained at 12 °C and pH at ~7.82; temperature, pH, and dissolved oxygen were monitored continuously.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1154648 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1154648
completed
Julie E. Keister
University of Washington
206-543-7620
School of Oceanography Box 357940
Seattle
WA
98195
United States
jkeister@uw.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Type
System
Treatment
Total_Length
Dry_Weight
Protein
spETS_activity
spAARS_activity
spAARS_1_activity
Respiration_rate
Krill_Sampling_Location_Latitude
Krill_Sampling_Location_Longitude
Krill_Sampling_Date
PreSens Microx 4 with PSt7
theme
None, User defined
sample description
length
weight
protein concentration
Catalytic Activity
respiration rate
latitude
longitude
date
featureType
BCO-DMO Standard Parameters
Oxygen Sensor
instrument
BCO-DMO Standard Instruments
CB1073
CB1078
service
Deployment Activity
Puget Sound
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Consequences of hypoxia on food web linkages in a pelagic marine ecosystem
https://osprey.bco-dmo.org/project/557504
Consequences of hypoxia on food web linkages in a pelagic marine ecosystem
<p><em>Description from NSF award abstract:</em><br />
Low dissolved oxygen (hypoxia) is one of the most pronounced, pervasive, and significant disturbances in marine ecosystems. Yet, our understanding of the ecological impacts of hypoxia on pelagic food webs is incomplete because of our limited knowledge of how organism responses to hypoxia affect critical ecosystem processes. In pelagic food webs, distribution shifts of mesozooplankton and their predators may affect predator-prey overlap and dictate energy flow up food webs. Similarly, hypoxia may induce shifts in zooplankton community composition towards species that impede energy flow to planktivorous fish. However, compensatory responses by species and communities might negate these effects, maintaining trophic coupling and sustaining productivity of upper trophic level species. The PIs propose to answer the question "Does hypoxia affect energy flow from mesozooplankton to pelagic fish?" They approach this question with a nested framework of hypotheses that considers two sets of processes alternatively responsible for either changes or maintenance of pelagic ecosystem energy flows. They will conduct their study in the Hood Canal, WA. Unlike most hypoxia-impacted estuaries, hypoxic regions of Hood Canal are in close proximity to sites that are not affected. This makes it logistically easier to conduct a comparative study and reduces the number of potential confounding factors when comparing areas that are far apart.</p>
<p>Improved understanding of how hypoxia impacts marine ecosystems will benefit the practical application of ecosystem-based management (EBM) in coastal and estuarine ecosystems. Effective application of EBM requires that the impacts of human activities are well understood and that ecological effects can be tracked using indicators. This project will contribute to both of these needs. The PIs will share their findings on local and national levels with Federal, State, Tribal, and County biologists. To increase exposure of science to underrepresented groups, the PIs also will provide Native American youth with opportunities to participate in field collections and laboratory processing through summer internships. The PIs will collaborate with the NSF-funded Pacific Northwest Louis Stokes Alliance for Minority Participation and tribes from the Hood Canal region to recruit and mentor students for potential careers in marine science. This project will support several undergraduate researchers, two Ph.D. students, a post-doc, and two early-career scientists.</p>
PelagicHypoxia
largerWorkCitation
project
eng; USA
oceans
Puget Sound
-122.29
-122.29
48.01
48.01
2021-02-11
Puget Sound, WA (47 N, 123 W)
0
BCO-DMO catalogue of parameters from Physiological observations of Euphausia pacifica after a ten-day acclimation to dissolved oxygen (DO) and pH conditions in two separate laboratory experiments.
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/840611.rdf
Name: Type
Units: unitless
Description: <p>Experiment type: pH or DO experiment</p>
http://lod.bco-dmo.org/id/dataset-parameter/840612.rdf
Name: System
Units: unitless
Description: <p>The system that generated controlled seawater conditions and represents the experimental replicates. Many individual krill were held within one experimental system. For the pH experiment 3 systems were used, only one per treatment condition (104A, 104B, 105A); for the DO experiment nine systems were used with three per treatment condition (M1, M2, M3, M4, M5, M9, M10, M11, M12)</p>
http://lod.bco-dmo.org/id/dataset-parameter/840613.rdf
Name: Treatment
Units: unitess
Description: <p>Target treatments: DO experiment target treatments were 9.0, 5.0, 3.0 mg DO L-1. For the pH experiment target treatments were pH 8.0, 7.5, and 7.2</p>
http://lod.bco-dmo.org/id/dataset-parameter/840614.rdf
Name: Total_Length
Units: millimeters (mm)
Description: <p>Measured total length of individual krill</p>
http://lod.bco-dmo.org/id/dataset-parameter/840615.rdf
Name: Dry_Weight
Units: milligrams (mg)
Description: <p>Dry weight calculated from total length.</p>
http://lod.bco-dmo.org/id/dataset-parameter/840616.rdf
Name: Protein
Units: milligrams (mg)
Description: <p>Protein content per individual</p>
http://lod.bco-dmo.org/id/dataset-parameter/840617.rdf
Name: spETS_activity
Units: umol O2 h-1 mg protein-1
Description: <p>Protein specific Electron Transport System (ETS) activity</p>
http://lod.bco-dmo.org/id/dataset-parameter/840618.rdf
Name: spAARS_activity
Units: nmol PPi h-1 mg protein-1
Description: <p>Protein specific aminoacyl-tRNA synthetase (AARS) activity</p>
http://lod.bco-dmo.org/id/dataset-parameter/840619.rdf
Name: spAARS_1_activity
Units: nmol PPi h-1 mg protein-1
Description: <p>Protein specific aminoacyl-tRNA synthetase (AARS) activity calculated with NADH blank correction described in McLaskey et al. 2020</p>
http://lod.bco-dmo.org/id/dataset-parameter/840620.rdf
Name: Respiration_rate
Units: umol O2 hr-1 ind-1
Description: <p>Individual oxygen consumption measured by respirometry</p>
http://lod.bco-dmo.org/id/dataset-parameter/840621.rdf
Name: Krill_Sampling_Location_Latitude
Units: decimal degrees
Description: <p>Latitude of krill sampling location, south is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/840622.rdf
Name: Krill_Sampling_Location_Longitude
Units: decimal degrees
Description: <p>Longitude of krill sampling location, west is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/840623.rdf
Name: Krill_Sampling_Date
Units: unitless
Description: <p>Date of krill sampling in ISO format (yyy-mm-dd), timezone is Pacific Daylight Time.</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
9834
https://darchive.mblwhoilibrary.org/bitstream/1912/26712/1/dataset-840572_krill-physiology-experimental-conditions__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.840572.1
download
onLine
dataset
<p>Krill for both experiments were collected from surface waters (upper 50 m) at approximately 48.01, -122.29 using a 60-cm diameter Bongo frame equipped with black 335-μm mesh nets and non-filtering cod ends towed for &lt;10 min. The contents of each cod end were immediately diluted in coolers of seawater and sorted to remove healthy euphausiids. For the pH experiment krill were collected on 23 July 2017 between 23:00-00:30, stored in 1-4 L containers at a concentration of 5 ind L-1, sealed with all air removed to eliminate splashing, and transported in coolers to the University of Washington Friday Harbor Laboratories (FHL) where they were sorted for healthy female&nbsp;<em>E. pacifica</em> (obvious ovary) and put in in experimental chambers between 06:00-08:00 on 24 July 2017. For the DO experiment krill were collected on 20 Sept 2017 between 20:00 and 21:15, krill were transported in coolers to the NOAA Mukilteo Research Station within an hour, sorted for healthy female <em>E. pacifica</em> (obvious ovary), and immediately put in experimental chambers. Krill were kept chilled (10-14 °C) at all times and were gently transferred using broad spoons to prevent damage. During experiments krill were fed Shellfish Diet 1800 (Reed Mariculture) twice per day and newly hatched <em>Artemia salina</em> (San Francisco Bay Brand) nauplii once per day. All physiological measurements were taken after 10 days of acclimation; individuals were flash frozen in liquid nitrogen after oxygen consumption was measured.</p>
<p>Experimental acclimation to pH was conducted at the FHL Ocean Acidification Environmental Laboratory, using a flow-through system with pH controlled by CO<sub>2</sub> bubbling. Target pH levels were 8.0, 7.5, and 7.2: three flow-through systems were used, one per pH treatment. Within each system, conditioned seawater was delivered to eight flow-through boxes that each contained two 500-mL mesh-sided experimental chambers with one individual krill per chamber, for a total of 16 individuals per system. Experimental systems were kept covered in black plastic to reduce light. Temperature was set to 12 °C and oxygen was maintained at ambient levels through bubbling, but not monitored.</p>
<p>Acclimation of krill to different oxygen levels in the laboratory was done at the NOAA Mukilteo Research Station in flow-through experimental systems with independent temperature, pH, and oxygen control. Target dissolved oxygen levels were 3, 5, and 9 mg DO L<sup>-1</sup>: nine systems were used, three per DO treatment, with krill held individually in a mix of both 250- and 500-mL flow-through containers within the experimental systems. Temperature was maintained at 12 °C and pH at ~7.82; temperature, pH, and dissolved oxygen were monitored continuously.</p>
Specified by the Principal Investigator(s)
<p>System indicates the system that generated controlled seawater conditions and represents the experimental replicates. Many individual krill were held within one experimental system. For the pH experiment 3 systems were used, only one per treatment condition (104A, 104B, 105A); for the DO experiment nine systems were used with three per treatment condition (M1, M2, M3, M4, M5, M9, M10, M11, M12). System names match the continuously recorded observations of seawater conditions: temperature and pH were monitored during the pH experiment (temperature was not logged in system 104A); DO, pH, and temperature were&nbsp;monitored during the oxygen experiment.&nbsp;</p>
<p>Krill were measured for total length (from behind the eye to the end of the telson) at 6X using a calibrated eyepiece reticle then flash frozen individually in liquid nitrogen. Total length was converted to dry weight (DW) using a published length-weight regression (Feinberg et al. 2007).</p>
<p>Protein content was determined according to the bicinchoninic acid (BCA) method (Smith et al. 1985) using a Pierce BCA Protein Assay Kit (Thermo Scientific).</p>
<p>ETS activity was assayed using the method of Owens and King (1975), as modified by Gómez et al. (1996), and adapted for a 96-well plate. Assays and blanks were measured in triplicate at 25 °C, calculated according to Packard and Christensen (2004), and corrected to <em>in situ</em> temperatures (depth integrated) using the Arrhenius equation with an activation energy of 15 kcal mol<sup>-1</sup> (Packard et al. 1975) and standardized to protein specific activity, spETS.</p>
<p>AARS was measured following the method of Yebra and Hernadez-León (2004), modified by Yebra et al. (2011), and adapted for a 96-well plate (Yebra et al. 2017). All activities were corrected to <em>in situ</em> temperatures with the Arrhenius equation using an activation energy of 8.57 kcal mol<sup>-1</sup> (Yebra et al. 2005) and standardized to protein specific activity, spAARS. spAARS_1 was measured with the NADH Blank and calculated as described by Mclaskey et al. (2020). For each sample, assays and NADH Blanks were measured in triplicate.</p>
<p>Oxygen consumption of individual krill was measured at 12 °C by closed-cell respirometry in 22-mL vials containing optical oxygen sensors (PSt7 PreSens) and a 12-mm magnetic stir bar separated from the animal by 200-μm mesh. Measurements were taken every 15 minutes for 2 hours. Krill were kept in filtered seawater to clear their guts for ~1 hr prior to respirometry.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
PreSens Microx 4 with PSt7
PreSens Microx 4 with PSt7
PI Supplied Instrument Name: PreSens Microx 4 with PSt7 PI Supplied Instrument Description:PreSens Microx 4 with PSt7 optical oxygen sensors. Instrument Name: Oxygen Sensor Instrument Short Name:Dissolved Oxygen Sensor Instrument Description: An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed
Cruise: CB1073
CB1073
R/V Clifford A. Barnes
Community Standard Description
International Council for the Exploration of the Sea
R/V Clifford A. Barnes
vessel
CB1073
Anna K. McLaskey
University of British Columbia
Cruise: CB1078
CB1078
R/V Clifford A. Barnes
Community Standard Description
International Council for the Exploration of the Sea
R/V Clifford A. Barnes
vessel
CB1078
Anna K. McLaskey
University of British Columbia
R/V Clifford A. Barnes
Community Standard Description
International Council for the Exploration of the Sea
R/V Clifford A. Barnes
vessel