Elephant Seal and Toothfish interations in longline fisheries
Edited version of a video showing three elephant seals interacting with a toothfish longline. Taken from the abstract of the referenced paper: Humans have devised fishing technologies that compete with marine predators for fish resources world-wide. One such fishery for the Patagonian toothfish (Dis...
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Online Access: | https://researchdata.ands.org.au/elephant-seal-toothfish-longline-fisheries/700902 https://doi.org/10.4225/15/5746767F2E626 https://data.aad.gov.au/metadata/records/Elephant_seal_toothfish_interaction http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::700902 2023-05-15T16:05:10+02:00 Elephant Seal and Toothfish interations in longline fisheries WELSFORD, DIRK (hasPrincipalInvestigator) KILPATRICK, ROBBIE (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-45.00624; southlimit=-63.79687; westlimit=59.76563; eastLimit=89.80469; projection=WGS84 Temporal: From 2010-07-07 to 2011-05-03 https://researchdata.ands.org.au/elephant-seal-toothfish-longline-fisheries/700902 https://doi.org/10.4225/15/5746767F2E626 https://data.aad.gov.au/metadata/records/Elephant_seal_toothfish_interaction http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/elephant-seal-toothfish-longline-fisheries/700902 4937942f-2378-4e31-967b-0a817d86f5a1 doi:10.4225/15/5746767F2E626 Elephant_seal_toothfish_interaction https://data.aad.gov.au/metadata/records/Elephant_seal_toothfish_interaction http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre farming biota environment oceans FISHERIES EARTH SCIENCE AQUATIC SCIENCES FISHERIES INTERACTIONS FISHING VESSELS GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS dataset ftands https://doi.org/10.4225/15/5746767F2E626 2020-01-05T21:18:14Z Edited version of a video showing three elephant seals interacting with a toothfish longline. Taken from the abstract of the referenced paper: Humans have devised fishing technologies that compete with marine predators for fish resources world-wide. One such fishery for the Patagonian toothfish (Dissostichus eleginoides) has developed interactions with a range of predators, some of which are marine mammals capable of diving to extreme depths for extended periods. A deep-sea camera system deployed within a toothfish fishery operating in the Southern Ocean acquired the first-ever video footage of an extreme-diver, the southern elephant seal (Mirounga leonina), depredating catch from longlines set at depths in excess of 1000m. The interactions recorded were non-lethal, however independent fisheries observer reports confirm elephant seal-longline interactions can be lethal. The seals behaviour of depredating catch at depth during the line soak-period differs to other surface-breathing species and thus presents a unique challenge to mitigate their by-catch. Deployments of deep-sea cameras on exploratory fishing gear prior to licencing and permit approvals would gather valuable information regarding the nature of interactions between deep diving/dwelling marine species and longline fisheries operating at bathypelagic depths. Furthermore, the positive identification by sex and age class of species interacting with commercial fisheries would assist in formulating management plans and mitigation strategies founded on species-specific life-history strategies. Dataset Elephant Seal Elephant Seals McDonald Islands Mirounga leonina Patagonian Toothfish Southern Elephant Seal Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Heard ENVELOPE(73.510,73.510,-53.117,-53.117) McDonald Islands ENVELOPE(72.600,72.600,-53.033,-53.033) Southern Ocean ENVELOPE(59.76563,89.80469,-45.00624,-63.79687) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
farming biota environment oceans FISHERIES EARTH SCIENCE AQUATIC SCIENCES FISHERIES INTERACTIONS FISHING VESSELS GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS |
spellingShingle |
farming biota environment oceans FISHERIES EARTH SCIENCE AQUATIC SCIENCES FISHERIES INTERACTIONS FISHING VESSELS GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS Elephant Seal and Toothfish interations in longline fisheries |
topic_facet |
farming biota environment oceans FISHERIES EARTH SCIENCE AQUATIC SCIENCES FISHERIES INTERACTIONS FISHING VESSELS GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS |
description |
Edited version of a video showing three elephant seals interacting with a toothfish longline. Taken from the abstract of the referenced paper: Humans have devised fishing technologies that compete with marine predators for fish resources world-wide. One such fishery for the Patagonian toothfish (Dissostichus eleginoides) has developed interactions with a range of predators, some of which are marine mammals capable of diving to extreme depths for extended periods. A deep-sea camera system deployed within a toothfish fishery operating in the Southern Ocean acquired the first-ever video footage of an extreme-diver, the southern elephant seal (Mirounga leonina), depredating catch from longlines set at depths in excess of 1000m. The interactions recorded were non-lethal, however independent fisheries observer reports confirm elephant seal-longline interactions can be lethal. The seals behaviour of depredating catch at depth during the line soak-period differs to other surface-breathing species and thus presents a unique challenge to mitigate their by-catch. Deployments of deep-sea cameras on exploratory fishing gear prior to licencing and permit approvals would gather valuable information regarding the nature of interactions between deep diving/dwelling marine species and longline fisheries operating at bathypelagic depths. Furthermore, the positive identification by sex and age class of species interacting with commercial fisheries would assist in formulating management plans and mitigation strategies founded on species-specific life-history strategies. |
author2 |
WELSFORD, DIRK (hasPrincipalInvestigator) KILPATRICK, ROBBIE (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Elephant Seal and Toothfish interations in longline fisheries |
title_short |
Elephant Seal and Toothfish interations in longline fisheries |
title_full |
Elephant Seal and Toothfish interations in longline fisheries |
title_fullStr |
Elephant Seal and Toothfish interations in longline fisheries |
title_full_unstemmed |
Elephant Seal and Toothfish interations in longline fisheries |
title_sort |
elephant seal and toothfish interations in longline fisheries |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/elephant-seal-toothfish-longline-fisheries/700902 https://doi.org/10.4225/15/5746767F2E626 https://data.aad.gov.au/metadata/records/Elephant_seal_toothfish_interaction http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-45.00624; southlimit=-63.79687; westlimit=59.76563; eastLimit=89.80469; projection=WGS84 Temporal: From 2010-07-07 to 2011-05-03 |
long_lat |
ENVELOPE(73.510,73.510,-53.117,-53.117) ENVELOPE(72.600,72.600,-53.033,-53.033) ENVELOPE(59.76563,89.80469,-45.00624,-63.79687) |
geographic |
Heard McDonald Islands Southern Ocean |
geographic_facet |
Heard McDonald Islands Southern Ocean |
genre |
Elephant Seal Elephant Seals McDonald Islands Mirounga leonina Patagonian Toothfish Southern Elephant Seal Southern Ocean |
genre_facet |
Elephant Seal Elephant Seals McDonald Islands Mirounga leonina Patagonian Toothfish Southern Elephant Seal Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/elephant-seal-toothfish-longline-fisheries/700902 4937942f-2378-4e31-967b-0a817d86f5a1 doi:10.4225/15/5746767F2E626 Elephant_seal_toothfish_interaction https://data.aad.gov.au/metadata/records/Elephant_seal_toothfish_interaction http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.4225/15/5746767F2E626 |
_version_ |
1766400974740520960 |