Prey species found within Hooker Sea Lion scats
This metadata record describes a dataset that has been found in the Data-Unknown section of the Australian Antarctic Data Centre servers. It is highly likely that these data relate to a paper by Clive McMahon, which is referenced below. The Australian Antarctic Data Centre cannot guarantee the quali...
Other Authors: | , |
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Format: | Dataset |
Language: | unknown |
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Australian Ocean Data Network
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Online Access: | https://researchdata.ands.org.au/prey-species-hooker-lion-scats/687353 https://data.aad.gov.au/metadata/records/hookers_sea_lion_scats https://data.aad.gov.au/eds/1504/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=2265 https://data.aad.gov.au/eds/2517/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=hookers_sea_lion_scats |
id |
ftands:oai:ands.org.au::687353 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota oceans EXCRETION RATES EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS SPECIES PREDATION SPECIES/POPULATION INTERACTIONS SEALS/SEA LIONS/WALRUSES BIOLOGICAL CLASSIFICATION ANIMALS/VERTEBRATES MAMMALS CARNIVORES Hooker's sea lion Macquarie Island scats faeces prey fish species VISUAL OBSERVATIONS LABORATORY FIELD INVESTIGATION AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans EXCRETION RATES EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS SPECIES PREDATION SPECIES/POPULATION INTERACTIONS SEALS/SEA LIONS/WALRUSES BIOLOGICAL CLASSIFICATION ANIMALS/VERTEBRATES MAMMALS CARNIVORES Hooker's sea lion Macquarie Island scats faeces prey fish species VISUAL OBSERVATIONS LABORATORY FIELD INVESTIGATION AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR Prey species found within Hooker Sea Lion scats |
topic_facet |
biota oceans EXCRETION RATES EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS SPECIES PREDATION SPECIES/POPULATION INTERACTIONS SEALS/SEA LIONS/WALRUSES BIOLOGICAL CLASSIFICATION ANIMALS/VERTEBRATES MAMMALS CARNIVORES Hooker's sea lion Macquarie Island scats faeces prey fish species VISUAL OBSERVATIONS LABORATORY FIELD INVESTIGATION AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR |
description |
This metadata record describes a dataset that has been found in the Data-Unknown section of the Australian Antarctic Data Centre servers. It is highly likely that these data relate to a paper by Clive McMahon, which is referenced below. The Australian Antarctic Data Centre cannot guarantee the quality of these data. The excel spreadsheet certainly appears to be about the presence-absence and %occurrence of particular species remains found within the scats of Hooker Sea Lions. It is possible (but by no means guaranteed) that the data were collected from Macquarie Island. In the original spreadsheet, species names were given in the form 'Z. spifer'. Hence a best guess has been made to provide the genus name of each particular species. In some cases the species name has been totally updated owing to changes in taxonomy. Both the original and modified species names are included in the dataset. The spreadsheet has a date creation stamp of the 6th of January, 1998. The original spreadsheet was created by Clive McMahon and altered by David Slip. Dates provided in temporal coverage have been taken from the referenced paper. This dataset is a collection of presence-absence and %occurrence data of prey species found within scats of Hooker Sea Lions. The data are presented in an excel spreadsheet. Samples were collected from 54 scats. From the abstract of the referenced paper: Scats were collected from itinerant male Hooker's sea lions, Phocarctos hookeri, at Macquarie Island and the un-eroded faunal remains used to assess the diet. Un-eroded sagittal otoliths were used to identify teleost fish and to calculate fish size. Prey items included 14 taxa of teleost fish, cephalopods, gastropods, crustaceans and fur seals. Fish constituted the primary component of the diet. Prey species previously uncommon in the diet of seals and penguins around Macquarie Island were commonly eaten by Hooker's sea lions. The sub-Antarctic horse fish (Zanclorhynchus spinifer) and the Patagonian tooth fish (Dissostichus eleginoides) were the two most abundant species and occurred in 62.5% and 41.7% of all scats respectively. There were no age specific and individual differences in the diet of sea lions. Seasonal variances in diet were absent. Small plastic fragments (diameter ~ 1mm) were only found in association with Electrona subaspera otoliths. Some overlap was seen between the diet of itinerant male Hooker's sea lions and the commercial fisheries that currently occur around Macquarie Island. This work was completed as part of ASAC project 2265 (ASAC_2265). |
author2 |
AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) |
format |
Dataset |
title |
Prey species found within Hooker Sea Lion scats |
title_short |
Prey species found within Hooker Sea Lion scats |
title_full |
Prey species found within Hooker Sea Lion scats |
title_fullStr |
Prey species found within Hooker Sea Lion scats |
title_full_unstemmed |
Prey species found within Hooker Sea Lion scats |
title_sort |
prey species found within hooker sea lion scats |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.ands.org.au/prey-species-hooker-lion-scats/687353 https://data.aad.gov.au/metadata/records/hookers_sea_lion_scats https://data.aad.gov.au/eds/1504/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=2265 https://data.aad.gov.au/eds/2517/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=hookers_sea_lion_scats |
op_coverage |
Spatial: northlimit=-54.48; southlimit=-54.79; westlimit=158.76; eastLimit=158.965 Temporal: From 1996-11-01 to 1997-11-30 |
long_lat |
ENVELOPE(-62.050,-62.050,-63.283,-63.283) ENVELOPE(65.148,65.148,-70.835,-70.835) ENVELOPE(158.76,158.965,-54.48,-54.79) |
geographic |
Antarctic Southern Ocean Hooker McMahon |
geographic_facet |
Antarctic Southern Ocean Hooker McMahon |
genre |
Antarc* Antarctic Macquarie Island Southern Ocean walrus* |
genre_facet |
Antarc* Antarctic Macquarie Island Southern Ocean walrus* |
op_source |
https://data.aad.gov.au |
op_relation |
https://researchdata.ands.org.au/prey-species-hooker-lion-scats/687353 07caf1e0-b0aa-446f-baa8-bce9615669cb https://data.aad.gov.au/metadata/records/hookers_sea_lion_scats https://data.aad.gov.au/eds/1504/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=2265 https://data.aad.gov.au/eds/2517/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=hookers_sea_lion_scats |
_version_ |
1766245741321256960 |
spelling |
ftands:oai:ands.org.au::687353 2023-05-15T13:46:56+02:00 Prey species found within Hooker Sea Lion scats AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) Spatial: northlimit=-54.48; southlimit=-54.79; westlimit=158.76; eastLimit=158.965 Temporal: From 1996-11-01 to 1997-11-30 https://researchdata.ands.org.au/prey-species-hooker-lion-scats/687353 https://data.aad.gov.au/metadata/records/hookers_sea_lion_scats https://data.aad.gov.au/eds/1504/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=2265 https://data.aad.gov.au/eds/2517/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=hookers_sea_lion_scats unknown Australian Ocean Data Network https://researchdata.ands.org.au/prey-species-hooker-lion-scats/687353 07caf1e0-b0aa-446f-baa8-bce9615669cb https://data.aad.gov.au/metadata/records/hookers_sea_lion_scats https://data.aad.gov.au/eds/1504/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=2265 https://data.aad.gov.au/eds/2517/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=hookers_sea_lion_scats https://data.aad.gov.au biota oceans EXCRETION RATES EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS SPECIES PREDATION SPECIES/POPULATION INTERACTIONS SEALS/SEA LIONS/WALRUSES BIOLOGICAL CLASSIFICATION ANIMALS/VERTEBRATES MAMMALS CARNIVORES Hooker's sea lion Macquarie Island scats faeces prey fish species VISUAL OBSERVATIONS LABORATORY FIELD INVESTIGATION AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:08:27Z This metadata record describes a dataset that has been found in the Data-Unknown section of the Australian Antarctic Data Centre servers. It is highly likely that these data relate to a paper by Clive McMahon, which is referenced below. The Australian Antarctic Data Centre cannot guarantee the quality of these data. The excel spreadsheet certainly appears to be about the presence-absence and %occurrence of particular species remains found within the scats of Hooker Sea Lions. It is possible (but by no means guaranteed) that the data were collected from Macquarie Island. In the original spreadsheet, species names were given in the form 'Z. spifer'. Hence a best guess has been made to provide the genus name of each particular species. In some cases the species name has been totally updated owing to changes in taxonomy. Both the original and modified species names are included in the dataset. The spreadsheet has a date creation stamp of the 6th of January, 1998. The original spreadsheet was created by Clive McMahon and altered by David Slip. Dates provided in temporal coverage have been taken from the referenced paper. This dataset is a collection of presence-absence and %occurrence data of prey species found within scats of Hooker Sea Lions. The data are presented in an excel spreadsheet. Samples were collected from 54 scats. From the abstract of the referenced paper: Scats were collected from itinerant male Hooker's sea lions, Phocarctos hookeri, at Macquarie Island and the un-eroded faunal remains used to assess the diet. Un-eroded sagittal otoliths were used to identify teleost fish and to calculate fish size. Prey items included 14 taxa of teleost fish, cephalopods, gastropods, crustaceans and fur seals. Fish constituted the primary component of the diet. Prey species previously uncommon in the diet of seals and penguins around Macquarie Island were commonly eaten by Hooker's sea lions. The sub-Antarctic horse fish (Zanclorhynchus spinifer) and the Patagonian tooth fish (Dissostichus eleginoides) were the two most abundant species and occurred in 62.5% and 41.7% of all scats respectively. There were no age specific and individual differences in the diet of sea lions. Seasonal variances in diet were absent. Small plastic fragments (diameter ~ 1mm) were only found in association with Electrona subaspera otoliths. Some overlap was seen between the diet of itinerant male Hooker's sea lions and the commercial fisheries that currently occur around Macquarie Island. This work was completed as part of ASAC project 2265 (ASAC_2265). Dataset Antarc* Antarctic Macquarie Island Southern Ocean walrus* Research Data Australia (Australian National Data Service - ANDS) Antarctic Southern Ocean Hooker ENVELOPE(-62.050,-62.050,-63.283,-63.283) McMahon ENVELOPE(65.148,65.148,-70.835,-70.835) ENVELOPE(158.76,158.965,-54.48,-54.79) |