TemperateReefBase Geonetwork Catalogue
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 (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.
Simple
Identification info
- Alternate title
- Elephant seal_toothfish_interaction_doi
- Date (Publication)
- 2017-08-17
- Edition
- 1
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.4225/15/5746767F2E626
Originator
Publisher
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
-
- Biota
- Environment
- Farming
- Oceans
Extent
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2010-07-07 2011-05-03
- Title
- Southern elephant seals (Mirounga leonina Linn.) depredate toothfish longlines in the midnight zone
- Date (Publication)
- 2017
- Citation identifier
- 12
Author
- Name
- PLoS ONE
- Issue identification
- 2
- Page
- https://doi.org/10.1371/journal.pone.0172396
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > OCEANS > AQUATIC SCIENCES > FISHERIES
- Keywords
-
- FISHERIES INTERACTIONS
- NASA/GCMD Earth Science Keywords
-
- FISHING VESSELS
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- AMD
- CEOS
- NASA/GCMD Earth Science Keywords
-
- GEOGRAPHIC REGION > POLAR
- OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are publicly available for download from the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- 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=Elephant_seal_toothfish_interaction when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2017-08-17T00:00:00
- Units of distribution
- MB
- Transfer size
- 181
- Distribution format
-
- .mov
- OnLine resource
-
GET DATA
Download point for the data
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.
- Maintenance and update frequency
- As needed
- Maintenance note
- 2016-05-26 - record created by John van den Hoff. 2017-08-17 - record updated by Dave Connell to publicly release the data.
Metadata
- Metadata identifier
- string/Elephant_seal_toothfish_interaction
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 4937942f-2378-4e31-967b-0a817d86f5a1
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2016-04-13T05:02:30
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/Elephant_seal_toothfish_interaction
Point of truth for the metadata record
- Date info (Creation)
- 2016-04-13T00:00:00
- Date info (Last Update)
- 2017-08-17
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
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