Data

Gut Content Analyis of Zooplankton in the Indian Ocean, 2014-2015

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/mkbe-8b20&rft.title=Gut Content Analyis of Zooplankton in the Indian Ocean, 2014-2015&rft.identifier=10.26179/mkbe-8b20&rft.publisher=Australian Antarctic Data Centre&rft.description=We studied the gut contents of four dominant copepod species (Calanoides acutus, Calanus propinquus, Calanus simillimus and Rhincalanus gigas) during the summer (2014-2015) along a latitudinal gradient (sampled every 5° between 40°S and 65°S) in the Indian sector of the Southern Ocean. Diatoms were the most abundant food item found in the guts, comprising 24 of the 25 species found, and 15 were common to the four species of copepod studied. Diatoms accounted for the lowest proportion of the diet in the warmer, northern waters while all the large diatoms (e.g. Chaetoceros atlanticus, C. criophilus, C. dichaeta, Corethron spp.) were only found at 65oS. The most frequent species in the guts were the centric diatoms Thalassiosira spp. (4 to 57%) and the pennate diatoms Fragilariopsis kerguelensis (27 to 80%) and Trichoctoxon reinboldii (2 to 50%); proportions varied within a species across locations. These species were found at all sites examined, whereas some diatoms were specific to one copepod species: Asteromphalus spp. (in R. gigas), C. criophilus and C. dichaeta (in C. acutus), Nitzschia lecointei and N. sicula (in C. propinquus).This dataset describes the gut contents of 4 dominant copepods in the Southern Ocean. They were collected at several sites along the 110 E meridian by bongo net and preserved in 4% buffered formaldehyde. In the laboratory the dominant copepods were removed, rinsed and dissected to remove their intestinal tracts. The gut contents were spread onto glass slides covered with a coverslip. The contents were examined under compound microscopes (including fluorescence microscopy) to count and identify fragments.Progress Code: completedStatement: No problems were encountered with the collection of these data.&rft.creator=Swadling, K. &rft.creator=SWADLING, KERRIE &rft.date=2021&rft.coverage=westlimit=110.39063; southlimit=-64.32087; eastlimit=113.20313; northlimit=-45.08904&rft.coverage=westlimit=110.39063; southlimit=-64.32087; eastlimit=113.20313; northlimit=-45.08904&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_Zooplankton_Gut_Contents when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=oceans&rft_subject=biota&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON > PHYTOPLANKTON&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > USE/FEEDING HABITATS&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > COPEPODS&rft_subject=GUT CONTENT&rft_subject=INTESTINAL TRACTS&rft_subject=4331&rft_subject=AAS 4331&rft_subject=FLUORESCENCE MICROSCOPY&rft_subject=BONGO NETS&rft_subject=R/V UM > R/V UMITAKA MARU&rft_subject=SHIPS&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_subject=OCEAN > INDIAN 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_Zooplankton_Gut_Contents when using these data.

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We studied the gut contents of four dominant copepod species (Calanoides acutus, Calanus propinquus, Calanus simillimus and Rhincalanus gigas) during the summer (2014-2015) along a latitudinal gradient (sampled every 5° between 40°S and 65°S) in the Indian sector of the Southern Ocean. Diatoms were the most abundant food item found in the guts, comprising 24 of the 25 species found, and 15 were common to the four species of copepod studied. Diatoms accounted for the lowest proportion of the diet in the warmer, northern waters while all the large diatoms (e.g. Chaetoceros atlanticus, C. criophilus, C. dichaeta, Corethron spp.) were only found at 65oS. The most frequent species in the guts were the centric diatoms Thalassiosira spp. (4 to 57%) and the pennate diatoms Fragilariopsis kerguelensis (27 to 80%) and Trichoctoxon reinboldii (2 to 50%); proportions varied within a species across locations. These species were found at all sites examined, whereas some diatoms were specific to one copepod species: Asteromphalus spp. (in R. gigas), C. criophilus and C. dichaeta (in C. acutus), Nitzschia lecointei and N. sicula (in C. propinquus).

This dataset describes the gut contents of 4 dominant copepods in the Southern Ocean. They were collected at several sites along the 110 E meridian by bongo net and preserved in 4% buffered formaldehyde. In the laboratory the dominant copepods were removed, rinsed and dissected to remove their intestinal tracts. The gut contents were spread onto glass slides covered with a coverslip. The contents were examined under compound microscopes (including fluorescence microscopy) to count and identify fragments.

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

Notes

Purpose
The aim of this study was to understand the diet of key copepod species (Calanoides acutus, Calanus simillimus, Calanus propinquus and Rhincalanus gigas) of the Indian sector of the Southern Ocean across a latitudinal transect (40°S to 65°S) during the summer 2015.

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

This dataset is part of a larger collection

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113.20313,-45.08904 113.20313,-64.32087 110.39063,-64.32087 110.39063,-45.08904 113.20313,-45.08904

111.79688,-54.704955

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Subjects
4331 | AAS 4331 | ACE/CRC | AMD | AMD/AU | BONGO NETS | CEOS | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > COPEPODS | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON > PHYTOPLANKTON | EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > USE/FEEDING HABITATS | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON | FLUORESCENCE MICROSCOPY | GEOGRAPHIC REGION > POLAR | GUT CONTENT | INTESTINAL TRACTS | OCEAN > INDIAN OCEAN | OCEAN > SOUTHERN OCEAN | R/V UM > R/V UMITAKA MARU | SHIPS | biota | oceans |

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Other Information
Download the dataset (GET DATA > DIRECT DOWNLOAD)

url : https://data.aad.gov.au/eds/5247/download

Public information for AAS project AAS_4331 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/report_project_public.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_Zooplankton_Gut_Contents

Identifiers
ACN 633 798 857