Data

Zooplankton razing Rates - Experiments conducted aboard the Umitaka-Maru, 2015

Australian Antarctic Division
Swadling, K. ; SWADLING, KERRIE
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/mfdk-r312&rft.title=Zooplankton razing Rates - Experiments conducted aboard the Umitaka-Maru, 2015&rft.identifier=10.26179/mfdk-r312&rft.publisher=Australian Antarctic Data Centre&rft.description=The dataset was developed during a cruise on the Umitaka-maru along the 110 E meridian from Fremantle to the ice edge. At five stations, zooplankton were collected and specimens selected for grazing experiments. They were added to 2L bottles, allowed to acclimate over 24 hours then placed in an onboard incubator and allowed to graze on natural phytoplankton assemblages. Water circulation around the incubator kept the temperature to that of seawater at the time of collection. Shade cloth was used to mimic the light conditions at each site. Where possible 4 replicates were run for each species and 4 control bottles were set up with the same phytoplankton assemblage but with no zooplankton added. Initial subsamples were taken and preserved in Lugol's solution. At the end of each experiment, further subsamples were taken and preserved in Lugol's solution. In the IMAS lab the phytoplankton samples were settled into smaller volumes and processed through a Coulter Counter to obtain the number of cells that had been removed by the plankton (initial conc - final conc). From those values, grazing rates of the species could be calculated for each site along the transect.Progress Code: completedStatement: No problems were encountered in the collection of these data.&rft.creator=Swadling, K. &rft.creator=SWADLING, KERRIE &rft.date=2021&rft.coverage=westlimit=108.98438; southlimit=-65.36684; eastlimit=113.90625; northlimit=-39.90974&rft.coverage=westlimit=108.98438; southlimit=-65.36684; eastlimit=113.90625; northlimit=-39.90974&rft.coverage=uplimit=0; downlimit=0&rft.coverage=uplimit=0; downlimit=0&rft.coverage=uplimit=200; downlimit=0&rft.coverage=uplimit=200; downlimit=0&rft_rights=These data are publicly available for download from the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4331_Grazing_Rates when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=biota&rft_subject=oceans&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON&rft_subject=COULTER COUNTER&rft_subject=INCUBATOR&rft_subject=Tally Counter > Tally Counter&rft_subject=SHIPS&rft_subject=R/V UM > R/V UMITAKA MARU&rft_subject=ACE/CRC&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=AMD&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=OCEAN > SOUTHERN OCEAN&rft.type=dataset&rft.language=English Access the data
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Attribution 4.0 International (CC BY 4.0)
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These data are publicly available for download from the provided URL.

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4331_Grazing_Rates when using these data.

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Full description

The dataset was developed during a cruise on the Umitaka-maru along the 110 E meridian from Fremantle to the ice edge. At five stations, zooplankton were collected and specimens selected for grazing experiments. They were added to 2L bottles, allowed to acclimate over 24 hours then placed in an onboard incubator and allowed to graze on natural phytoplankton assemblages. Water circulation around the incubator kept the temperature to that of seawater at the time of collection. Shade cloth was used to mimic the light conditions at each site. Where possible 4 replicates were run for each species and 4 control bottles were set up with the same phytoplankton assemblage but with no zooplankton added. Initial subsamples were taken and preserved in Lugol's solution. At the end of each experiment, further subsamples were taken and preserved in Lugol's solution. In the IMAS lab the phytoplankton samples were settled into smaller volumes and processed through a Coulter Counter to obtain the number of cells that had been removed by the plankton (initial conc - final conc). From those values, grazing rates of the species could be calculated for each site along the transect.

Lineage

Progress Code: completed
Statement: No problems were encountered in the collection of these data.

Notes

Purpose
The purpose of the dataset is to measure grazing rates of key copepod species along a transect to determine whether grazing rates changes with (i) latitude and (ii) species of phytoplankton present. We sampled north and south of the Polar Front where phytoplankton community abundance and diversity change from subantarctic conditions to Antarctic conditions.

Data time period: 2015-01-10 to 2015-01-25

This dataset is part of a larger collection

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113.90625,-39.90974 113.90625,-65.36684 108.98438,-65.36684 108.98438,-39.90974 113.90625,-39.90974

111.445315,-52.63829

text: westlimit=108.98438; southlimit=-65.36684; eastlimit=113.90625; northlimit=-39.90974

text: uplimit=0; downlimit=0

text: uplimit=200; downlimit=0

Subjects
ACE/CRC | AMD | AMD/AU | CEOS | COULTER COUNTER | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON | GEOGRAPHIC REGION > POLAR | INCUBATOR | OCEAN > SOUTHERN OCEAN | R/V UM > R/V UMITAKA MARU | SHIPS | Tally Counter > Tally Counter | biota | oceans |

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Other Information
Citation reference for this metadata record and dataset. (GET DATA > DIRECT DOWNLOAD)

url : https://data.aad.gov.au/eds/5246/download

Public information for AAS project AAS_4331 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/search_projects_results.cfm?project_no=AAS_4331

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

url : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4331_Grazing_Rates

Identifiers
ACN 633 798 857