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AFSC/RACE/FBEP/Hurst: Effects of ocean acidification on hatch size and larval growth of walleye pollock (Theragra chalcogramma)

Metadata Updated: April 1, 2024

This dataset is from laboratory experiments that examined the direct effects of projected levels of ocean acidification on the eggs and larvae of walleye pollock.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date February 29, 2024
Metadata Created Date October 28, 2022
Metadata Updated Date April 1, 2024
Reference Date(s) 2013 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NMFS AFSC

Additional Metadata

Resource Type Dataset
Metadata Date February 29, 2024
Metadata Created Date October 28, 2022
Metadata Updated Date April 1, 2024
Reference Date(s) 2013 (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:27860
Access Constraints Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/RACE/FBEP/Hurst: Effects of ocean acidification on hatch size and larval growth of walleye pollock (Theragra chalcogramma) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/27860., Access Constraints: No restriction for accessing this dataset, Use Constraints: Must cite originator if used in publications, reports, presentations, etc. Must understand metadata prior to use., 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.
Bbox East Long -124.033955
Bbox North Lat 44.631316
Bbox South Lat 44.621316
Bbox West Long -124.043955
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id a905836c-ffb5-4df4-b807-5c6adc6ffcec
Harvest Source Id 26a29bb9-50b0-47fd-920b-edc74aa6ec76
Harvest Source Title NMFS AFSC
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Lineage Egg incubation experiments: Eggs for the experiments were produced over three spawning seasons by a captive broodstock of walleye pollock at the AFSC laboratory in Newport, Oregon. Batches of eggs were collected from the spawning tanks periodically through the spawning period. From each egg batch, 3-4 replicate samples of 1.5-2mL of eggs were incubated in each of the four CO2 treatments. Each day during the hatch cycle, up to 20 newly hatched larvae from each beaker were digitally photographed under a dissecting microscope and measurements were taken with an image analysis system. Larval growth experiments: Three independent larval rearing experiments were conducted with offspring from broodstock spawning events. For each experiment, eggs were collected over a 3-day spawning period. At the first feeding stage, 7 days post-hatch, larvae were transferred to three replicate rearing tanks maintained at each of the four CO2 treatment levels. A sample of 15-20 fish was drawn from each replicate tank at weekly intervals from the first feeding stage until fish reached 33-38 DPH. Sampled larvae were digitally photographed under a dissecting microscope and measurements were made and used to calculate larval condition index.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-124.043955, 44.621316], [-124.033955, 44.621316], [-124.033955, 44.631316], [-124.043955, 44.631316], [-124.043955, 44.621316]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2010
Temporal Extent End 2011

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