AFSC/RACE/SAP/Long: Effects of ocean acidification on respiration, feeding, and growth of juvenile red and blue king crabs (Paralithodes camtschaticus and P. platypus)
Alaska Fisheries Science Center
Data Set
(DS)
| ID: 36615
| Published / External
Created: 2017-02-02
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Last Modified: 2023-05-30
Project (PRJ) | ID: 22354
ID: 36615
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | AFSC/RACE/SAP/Long: Effects of ocean acidification on respiration, feeding, and growth of juvenile red and blue king crabs (Paralithodes camtschaticus and P. platypus) |
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Short Name | AFSC/RACE/SAP/Long: Effects of ocean acidification on respiration, feeding, growth of juvenile red and blue king crabs (Paralithodes camtschaticus, P. platypus) |
* Status | Completed |
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• Publication Date | |
* » Abstract |
Juvenile red and blue king crabs (Paralithodes camtschaticus and P. platypus) were exposed to three pH levels: ambient (pH 8.1), pH 7.8, and pH 7.5 for three weeks. Oxygen consumption and feeding ration were determined immediately after exposure to treatment water and after three weeks exposure. Growth can be calculated from the wet mass observations. |
* Purpose |
Juvenile red and blue king crabs (Paralithodes camtschaticus and P. platypus) both exhibit increased mortality and decreased growth in acidified waters. In this study, we determine how ocean acidification affects oxygen consumption, feeding rates, and growth in both species. |
Notes |
Loaded by FGDC Metadata Uploader, batch 9730, 02-02-2017 11:51 |
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ISO 19115 Topic Category | environment |
ISO 19115 Topic Category | oceans |
None | diet |
None | growth |
None | juvenile |
None | ocean acidification |
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* Spatial Keywords
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None | Alaska |
None | Bering Sea |
None | Bristol Bay |
None | Gulf of Alaska |
None | Kodiak |
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Physical Location
• » Organization | Kodiak Fisheries Research Center |
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• » City | Kodiak |
• » State/Province | AK |
• Country | USA |
• » Location Description |
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* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | None Planned |
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» Data Presentation Form | Table (digital) |
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Distribution Liability |
The user is responsible for the results of any application of this data for other than its intended purpose. NOAA denies liability if the data are misused. |
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* » Support Role | Data Steward |
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* » Date Effective From | 2017 |
Date Effective To | |
Person | Long, Chris |
Email Address | chris.long@noaa.gov |
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* » Support Role | Distributor |
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* » Date Effective From | 2017 |
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Person | Long, Chris |
Email Address | chris.long@noaa.gov |
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* » Support Role | Metadata Contact |
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* » Date Effective From | 2017-02-02 |
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Person | MC, Metadata Coordinators |
Email Address | AFSC.metadata@noaa.gov |
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* » Support Role | Originator |
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* » Date Effective From | 2017 |
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Person | Long, Chris |
Email Address | chris.long@noaa.gov |
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* » Support Role | Originator |
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* » Date Effective From | 2017 |
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Person | Swiney, Katherine |
Email Address | katherine.swiney@noaa.gov |
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* » Support Role | Originator |
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* » Date Effective From | 2017 |
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Person | Foy, Robert |
Email Address | robert.foy@noaa.gov |
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* » Support Role | Point of Contact |
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* » Date Effective From | 2017 |
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Person | Long, Chris |
Email Address | chris.long@noaa.gov |
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* » W° Bound | -152.395268 |
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* » E° Bound | -152.395268 |
* » N° Bound | 57.782403 |
* » S° Bound | 57.782403 |
* » Description |
Kodiak Laboratory |
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unknown |
• » Data Access Constraints |
There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. |
• Data Use Constraints |
User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Users should cite this data set as well as the paper in which they are published (Long, W. C., Pruisner, P., Swiney, K. M., and Foy, R. in review. Effects of ocean acidification on respiration, feeding, and growth of juvenile red and blue king crabs (Paralithodes camtschaticus and P. platypus). Scientific Reports ) in any publications and/or other representations of these, data is suggested. |
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» Download URL | https://console.cloud.google.com/storage/browser/nmfs_odp_afsc/RACE/SAP/Long%3B%20Effects%20of%20ocean%20acidification%20on%20respiration,%20feeding,%20and%20growth%20of%20juvenile%20red%20and%20blue%20king%20crabs%20%28Paralithodes%20camtschaticus%20and%20P.%20platypus%29; |
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Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/16/2021. Contact: Daniel.woodrich@noaa.gov |
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Data Management
» Have Resources for Management of these Data Been Identified? | No |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | Unknown |
» Do these Data Comply with the Data Access Directive? | No |
» Is Access to the Data Limited Based on an Approved Waiver? | No |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | No |
» Approximate Delay Between Data Collection and Dissemination | Unknown |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
no delay |
» Actual or Planned Long-Term Data Archive Location | NCEI-MD |
» Approximate Delay Between Data Collection and Archiving | unknown |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption. |
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Process Step Number | 1 |
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» Description |
During the experiment, crabs were held in individual cells made out of PVC pipe with mesh bottoms that were placed in three larger experimental tubs. Cells each received flow-through water and were large enough to not cause stress to the animals. Crab were fed Gelly Belly (above) three times a week to excess during the experiment. The temperature was maintained at 5°C, which is well within the thermal tolerance range for both species (Long and Daly in review), in each tub using a recirculating chiller. Each of the tubs was fed with flow through seawater at one of three pHs. To acidify seawater, CO2 was bubbled into seawater to reduce the pH to 5.5. This water was mixed with ambient filtered seawater into treatment head tanks. The flow rate of pH 5.5 water was controlled via feedback from pH probes in the head tanks that adjusted the speed of peristaltic pumps. Three pH treatments were used, ambient (pH ~8.1), pH 7.8 (pH expected in global surface waters in ~2100) and pH 7.5 (~2200). The pH and temperature were measured in a randomly selected cell in each treatment once a day using a Durafet III pH probe that was calibrated daily in TRIS buffer. Weekly water samples from each treatment were taken, poisoned with mercuric chloride, and sent to an analytic laboratories for dissolved inorganic carbon (DIC) and total alkalinity (TA) analysis. DIC and TA were determined using a VINDTA 3C (Marianda, Kiel, Germany) coupled to a 5012 Coulometer (UIC Inc., Joliet, IL) using Certified Reference Material from the Dickson Laboratory. |
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Process Step Number | 2 |
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» Description |
In this experiment, we measured respiration and feeding ration crabs both immediately after exposure to treatment water and after 3 weeks acclimation period in treatment water. Three weeks exposure time was selected, in part, because, after that, the mortality rate of juveniles in the lowest pH treatment was likely to result in too low a sample size. Sample size was 6 crabs per species per treatment except for red king crab at pH 7.5 which we increased to 10 crabs in anticipation of a higher mortality rate at that treatment. As no more than five respirometry measurements could be made per day, trials for individual crabs were staggered and crabs were started in a random order. Part way through beginning the experiment, an equipment failure caused mass mortality in the pH 7.5 treatment. The affected crabs were replaced with new one and the initial respiration/feeding trials re-run. Each crab was starved for 1 day prior to measuring the respiration and feeding ration to standardize hunger levels. Each day the respiration trials for that day would be performed and the crabs placed into their cells in the experimental tubs. Respiration was measured in a 5 ml Plexiglas cell with an integrated Clark electrode oxygen sensor that recorded the O2 concentration continually. The sensor was calibrated daily with a two point calibration procedure. The cell was jacketed in by a secondary chamber that allowed flow-through water to maintain the cell at a constant temperature and the whole apparatus was placed inside a temperature controlled room at 5°C. To measure respiration rates, crabs were placed into the cell with a known volume of water at the treatment pH. Trials were run for 1.25-1.5 h. Immediately after the trial the crab was removed from the chamber it was blotted dry and the wet mass was determined. The rate of oxygen consumption in the cell was determined by determining the slope of the oxygen concentration over time once the trend became linear and was normalizing to the mass of each crab. After the respiration trials, the crab were placed in their holding cells in the experimental tubs. Feeding ration was determined the same day as respiration measurements were taken. A pre-massed piece of squid mantle (blotted dry) ~50% of the mass of the crabs was placed into each cell and the crab was allowed to feed for 24 h after which the remaining food was collected, blotted dry, and massed. As the red king crab were smaller than the blue king crab the mass of food given to each species differed accordingly. Control trials without crabs were performed in each pH treatment for each species (to account for any potential difference in the initial mass of the samples) with 3 replicates of each pH/species combination. On average, the mass of squid increased by 0.8 ± 7.8% (SE) and did not differ among either pH treatments (2-way ANOVA, F2,13 = 0.184, p = 0.834) or species (2-way ANOVA, F1,13 = 1.318, p = 0.272) so the overall mean was used when calculating the feeding ration. The mass of food consumed was determined and the feeding ration calculated as the percent of the crab’s mass consumed corrected for mass change in control trials. The crabs were held in their treatment water for ~21 days (range 20-24 d) and checked daily for moults or mortalities. Then the respiration and feeding ration for each crab was determined a second time in the same way as above. |
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» Description |
The pH treatment the crab was in or the observation was made in. Control = pH of ambient water coming into the Kodiak Lab; pH 7.8- water adjusted to a pH 0f 7.8 with CO2. pH 7.5- water adjusted to a pH of 7.5 pH was taken using Durafet pH probe, accuracy between 0.01 and 0.03. Salinity values represented in practical salinity units. Blank cells indicate no data was taken or missing data. Alkalinity values represented in micromoles per kilogram. Blank cells indicate no data was taken or missing data. DIC (dissolved inorganic carbon) is also known as the total CO2 and is represented in micromoles per kilogram. Blank cells indicate no data was taken or missing data. Species: BKC = blue king crab; RKC = red king crab. Time Indicates whether the measurement was made at the beginning (Initial) or end (Final) of the experiment. Initial = measurement made immediately after crab was exposed to treatment water. Final = measurement made after crab was exposed to treatment water for approximately 3 weeks. |
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Rubric scores updated every 15m
Score | Type | Title |
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Entity (ENT) | Crab mass | |
Entity (ENT) | Respiration and Feeding | |
Entity (ENT) | Water Chemistry | |
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Catalog Details
Catalog Item ID | 36615 |
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Metadata Record Created By | Christie Lang |
Metadata Record Created | 2017-02-02 11:51+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-05-30 18:09+0000 |
Metadata Record Published | 2017-02-02 |
Owner Org | AFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2017-02-02 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2018-02-02 |
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