An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in CCAMLR Division 58.5.2

This integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2, with data until end of July 2015, is based on the best available estimates of model parameters, the use of abundance estimates from a random stratified trawl survey (RSTS), longline tag-release data from 2012-2014 and longline tag-recapture data from 2013-2015, and auxiliary commercial composition data to aid with the estimation of year class strength and selectivity functions of the trawl, longline and trap sub-fisheries.All model runs were conducted with CASAL version 2.30-2012-03-21 (Bull et al. 2012).

The assessment model leads to an MCMC estimate of the virgin spawning stock biomass B0 = 87 077 tonnes (95% CI: 78 500-97 547 tonnes). Estimated SSB status in 2015 was 0.64 (95% CI: 0.59-0.69). Using this model, a catch limit of 3405 tonnes satisfies the CCAMLR decision rules. Similarly to the 2014 assessment, the projected stock remains above the target level for the entire projection period.

Identification info

Alternate title: An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in CCAMLR Division 58.5.2

Date (Publication): 2016-08-23

Edition: 1

Originator

Ziegler, P.

Publisher

Australian Antarctic Data Centre

Principal investigator

ZIEGLER, PHILIPPE

Australian Antarctic Division

Channel Highway

Kingston

Tasmania

7050

Australia

03 6232 3624

Collaborator

ZIEGLER, PHILIPPE

Australian Antarctic Division

Channel Highway

Kingston

Tasmania

7050

Australia

03 6232 3624

Name: CAASM Metadata

Other citation details: Confidential data - restricted

Website: https://data.aad.gov.au/metadata/records/AAS_4030_ToothfishAssessment

Purpose: This stock assessment and its stock projections is used to provide advice to setting a catch limit for the Patagonian toothfish (Dissostichus eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2.

Status: Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)

Australian Antarctic Division

203 Channel Highway

Kingston

Tasmania

7050

Australia

+61 3 6232 3244

+61 3 6232 3351 (facsimile)

Topic category

Biota
Oceans

Extent

Description: Temporal Coverage

Temporal extent

TimePeriod: 1997-01-01 2015-11-30

Extent

Description: Vertical Extent - Depth

Vertical element

Minimum value: 0

Maximum value: 2500

Identifier: urn:x-ogc:def:cs:EPSG:6498

Name: Vertical CS. Axis: depth (D). Orientation: down. UoM: m.

Identifier: urn:x-ogc:def:axis:EPSG:113

Name: depth

Title: Integrated Stock Assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2).

Date (Publication): 2015

Author

Ziegler, P.E., and D.C. Welsford

Publisher

CCAMLR

Hobart

Other citation details: Document WG-FSA-15/52

Title: Integrated Stock Assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2).

Date (Publication): 2014

Author

Ziegler, P.E., de la Mare, W.K., Welsford D.C. and P. Burch

Publisher

CCAMLR

Hobart

Other citation details: Document WG-FSA-14/34

Title: Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys.

Date (Publication): 2015

Author

De la Mare, B., Ziegler, P.E. and D.C. Welsford

Publisher

CCAMLR

Hobart

Other citation details: Document WG-SAM-15/34

Title: Integrated Stock Assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2).

Date (Publication): 2013

Author

Ziegler, P.E., Candy, S. and D.C. Welsford

Publisher

CCAMLR

Hobart

Other citation details: Document WG-FSA-13/24.

Title: A nonparametric model of empirical length distributions to inform stratification of fishing effort for integrated assessments.

Date (Publication): 2014

Citation identifier: 159

Author

Candy, S.G., P.E. Ziegler and D.C. Welsford.

Name: Fish. Res.

Page: 34-44

Title: Data and approach for the revised stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2).

Date (Publication): 2014

Author

Ziegler, P.E. and D.C. Welsford

Publisher

CCAMLR

Hobart

Other citation details: Document WG-SAM-14/23.

Title: Investigating the uncertainty of age determinations for Patagonian toothfish (Dissostichus eleginoides) and the implications for stock assessments.

Date (Publication): 2014

Author

Burch, P., Ziegler, P.E., de la Mare, W. and D.C. Welsford

Publisher

CCAMLR

Hobart

Other citation details: Document WG-FSA-14/46

Title: CASAL (C++ algorithmic stock assessment laboratory): CASAL user manual v2.30-2012/03/21

Date (Publication): 2012

Citation identifier: 135

Author

Bull, B., Francis, R.I.C.C., Dunn, A., McKenzie, A., Gilbert, D.J., Smith, M.H., Bian, R. and D. Fu

Name: NIWA Technical Report

NASA/GCMD Earth Science Keywords

EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH
EARTH SCIENCE > OCEANS > AQUATIC SCIENCES > FISHERIES
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > POPULATION DYNAMICS

Keywords

CASAL MODEL FRAMEWORK
STOCK ASSESSMENT

NASA/GCMD Earth Science Keywords

MODELS

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: The data set is commercial in-confidence.

Resource constraints

File type: Portable Network Graphic

Linkage: Creative Commons by Attribution logo

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: The results of the stock assessment are available in the CCAMLR Fishery Report for Division 58.5.2 at: https://www.ccamlr.org/en/fisheries/toothfish-fisheries 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_4030_ToothfishAssessment when using these data.

Language: English

Character encoding: UTF8

Distribution Information

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)

Australian Antarctic Division

203 Channel Highway

Kingston

Tasmania

7050

Australia

+61 3 6232 3244

+61 3 6232 3351 (facsimile)

Distributor

Fees: Free

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Fees: Free

Units of distribution: kb

Transfer size: 397

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Text

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Transfer size: 604

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OnLine resource: GET DATA
Download point for the stock assessment models - not publicly available

OnLine resource: PROJECT HOME PAGE
Public information for AAS project AAS_4030

OnLine resource: VIEW RELATED INFORMATION > PUBLICATIONS
Download point for the 2015 CCAMLR report

OnLine resource: VIEW RELATED INFORMATION > PUBLICATIONS
Download the CCAMLR report from the CCAMLR website

OnLine resource: VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.

Resource lineage

Statement: This assessment model is based on the best available data and estimates of model parameters.

Hierarchy level: Dataset

Maintenance and update frequency: As needed

Maintenance note: 2016-08-24 - record created by Phil Ziegler.

Metadata

Metadata identifier: string/AAS_4030_ToothfishAssessment

Language: English

Character encoding: UTF8

Author

ZIEGLER, PHILIPPE

Australian Antarctic Division

Channel Highway

Kingston

Tasmania

7050

Australia

03 6232 3624

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope: Dataset

Alternative metadata reference

Title: gov.nasa.gsfc.gcmd

Citation identifier: c941ec37-5d7f-4efb-b3d3-41878f733057

Alternative metadata reference

Title: gov.nasa.gsfc.gcmd

Date (Last Revision): 2021-11-17T12:22:29

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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/AAS_4030_ToothfishAssessment
Point of truth for the metadata record

Date info (Creation): 2016-08-23T00:00:00

Date info (Last Update): 2017-04-26

Metadata standard

Title: ISO 19115-3

Edition: 2014

Other citation details: Version 1

Title: DIF to ISO 19115-1 Profile

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