Ecological and resource modelling in the Southern Ocean, including fish and fisheries ecology
Entry ID: ASAC_2942

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Summary
Abstract: Metadata record for data from ASAC Project 2942
See the link below for public details on this project.

Public
Ecological sustainability of fisheries is a primary goal for managing human activities in the marine environment. Management decisions must be based on clear, operational objectives and reliable assessment methods that are robust against uncertainties in our understanding of how the ecosystem functions, measurement error and natural variation. This project aims to provide the tools for developing management procedures for Antarctic and Sub-Antarctic fisheries. These tools will include a flexible set of ecosystem and food web models of the Antarctic and Sub-Antarctic regions for testing management procedures before they are put into practice.

Project objectives:
PROJECT THEMES AND KEY QUESTIONS

The themes of this work aim to provide a framework for determining how to manage Antarctic fisheries, such as Antarctic krill, Patagonian toothfish and mackerel icefish:
a. Models of the Antarctic Marine Ecosystem
b. Biology and Ecology of Fish in the Southern Indian Ocean
c. Management Procedures for Antarctic Fisheries

a/ Models of the Antarctic Marine Ecosystem

Key Questions
- What is the status of knowledge on Antarctic and Sub-Antarctic vertebrates and squid, including population status and trends, demography, and diet?
- What plausible operating models can be developed for Antarctic and Sub-Antarctic systems that take account of spatial heterogeneity and temporal variability?

b/ Biology and Ecology of Fish in the Southern Indian Ocean

Key Questions
- Fisheries-related research at Heard Island and McDonald Islands
- What are the population dynamics of toothfish and icefish stocks in the region of Heard Island and McDonald Islands?
- How does primary and secondary productivity vary spatially and temporally in the region? What are the primary causes of variability in the region?
- What is the strength of interactions between land-based predators and commercially fished species in the region?
- Ecology of fish in the southern Indian Ocean Fish of the Kerguelen Plateau /Crozet Region
- What is the composition of fish fauna around and to the west of Kerguelen Plateau /Crozet ? What factors influence the distribution and abundance of these fauna?
- What is the relationship between the distribution and abundance of fish fauna and the habitat features of the continental shelf in the Kerguelen region?

c/ Management Procedures for Antarctic Fisheries

Key Questions
- What operational objectives could be used as a guide to managing fisheries in an ecologically sustainable way?
- What are performance measures for target species and food webs?
- What are the key parameters to monitor the status of the system to signal change before it becomes irreversible?
- What quantitative/statistical methods are best used for assessing the status of populations and ecosystems?
- How might an integrated modelling framework be designed to best facilitate the development of management procedures for Antarctic fisheries?
- Could a spatially-structured management system, such as a mosaic of open and closed areas, enhance the approaches to managing fisheries in the Antarctic?

Taken from the 2008-2009 Progress Report:
Public summary of the season progress:
The Ecological and Resource Modelling and Fish and Fisheries Ecology group has made significant contributions to understanding the commercial fish stocks and ecosystem in the vicinity of Heard Island, has coordinated the fisheries observer program in CCAMLR waters, and has contributed significantly to the scientific work of CCAMLR, particularly in relation to ecosystem modelling, stock assessment and conservation of the Southern Ocean.

Taken from the 2009-2010 Progress Report:
Progress against objectives:
a) Models of the Antarctic Marine Ecosystem
Further progress has been made on quantifying the spatial variation in the productivity of krill through the development of a krill productivity model in the Ecosystem Productivity Ocean Climate modelling framework.
Further estimation of population parameters for toothfish and icefish.
Further development of an ecosystem model for Heard Island.
Further work to develop and evaluate management strategies for Antarctic fisheries through the CCAMLR Working Group on Statistics, Assessments and Modelling (WG-SAM) of which Andrew Constable is the Convenor.

b) Biology and Ecology of Fish in the Southern Indian Ocean
Twelve months of intensive processing of otolith samples has resulted in the preparation and ageing of over 5,000 otoliths of Patagonian toothfish (Dissostichus eleginoides), collected over the past 10 years from the Heard Island - McDonald Islands (HIMI) fishery and the Macquarie Island fishery. Patagonian toothfish otolith ageing and microchemistry work will continue over a number of years.

Further processing, maintenance and cataloguing of the collection of preserved fish specimens has been undertaken.

Work has also continued on the processing and cataloguing of benthic samples collected by observers or field work previously undertaken in the HIMI region. This work continues to increase the known diversity of benthic fauna of the HIMI region.

c) Management Procedures for Antarctic Fisheries
Contribution of advice to the Subantarctic Resource Assessment Group of AFMA.

Contribution of advice to the CCAMLR Working Groups, WG-FSA and WG-EMM on the evaluation of management strategies and assessments of stocks for fisheries in which Australia is involved, including Heard Island as well as in new and exploratory fisheries in higher latitudes.

Contribution in WG-FSA and SC-CAMLR on issues pertaining to the CCAMLR observer scheme and at sea implementation of conservation measures. Dirk Welsford is the Co-Convenor for the CCAMLR Technical Group on At-Sea Operations (TASO) which held its first meeting in July 2008 and reports directly to SC-CAMLR and its Working Groups.

Contribution from project 2942 to Australian Delegation to CCAMLR resulted in the following outcomes being achieved:
1) Catch limit on BANZARE Bank was reduced to zero pending results of research fishing in 2009/10 (CONSERVATION MEASURE 41-07, 2009)
2) Reduction of the catch limit and enforcement of the need for a recovery plan from a proposal by Japan to undertake fishing for scientific research in a closed area on Ob and Lena Banks. Australia endorsed the need for ongoing review of 'scientific fishing' programs such as those proposed by Japan.
3) The need for systematic observation on all krill fishing vessels to achieve CCAMLR objectives and development of new conservation measure 51-06 for scientific observer coverage on krill fishery.
4) Endorsement of the need for robust otolith sampling strategies and comprehensive age-length datasets as key inputs into Dissostichus assessments and the need for quality control processes in ageing programs.
5) Endorsement of the Scientific Committee to use PATCH model to evaluate impacts of fishing on VMEs.
6) Adoption of toothfish assessment strategy and results , and yield recommendations for next 2 seasons, (CONSERVATION MEASURE 41-08)
7) Adoption for icefish survey assessment strategy and results and recommended yield for next season. (CONSERVATION MEASURE 42-02).
8) Endorsements of current by-catch limits and rates of by-catches in 58.5.2 as being appropriate at mitigating significant impacts on skates.

The assessment for TOP (Candy and Constable, 2008) was revised using catch-at-age data as a key outcome of the FRDC funded work involving ageing of TOP catch and construction of age length keys at HIMI (Welsford et al, 2009; Candy and Welsford, 2009).

Related URL
Link: VIEW PROJECT HOME PAGE
Description: Project home page


Link: VIEW RELATED INFORMATION
Description: Citation reference for this metadata record and dataset


Geographic Coverage
 N: -50.0 S: -70.0  E: 180.0  W: -180.0

Temporal Coverage
Start Date: 2007-10-01
Stop Date: 2012-03-30


Location Keywords
OCEAN > SOUTHERN OCEAN
GEOGRAPHIC REGION > POLAR


Science Keywords
AGRICULTURE >AGRICULTURAL AQUATIC SCIENCES >FISHERIES    [Definition]
OCEANS >MARINE ENVIRONMENT MONITORING    [Definition]
OCEANS >AQUATIC SCIENCES >FISHERIES    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >FISH    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS    [Definition]


ISO Topic Category
BIOTA


Quality
Values provided in temporal and spatial coverage are approximate only.

Taken from the 2009-2010 Progress Report:
Laboratory activity/analysis:
Twelve months of intensive processing of otolith samples resulted in the preparation and ageing of over 5,000 otoliths of Patagonian toothfish, Dissostichus eleginoides, collected over the past 10 years from the Heard Island - McDonald Islands (HIMI) fishery and the Macquarie Island fishery. Patagonian toothfish otolith ageing and microchemistry work will continue over a number of years.

Further processing, maintenance and cataloguing of the collection of preserved fish specimens has been undertaken.

Work has also continued on the processing and cataloguing of benthic samples collected by observers or field work previously undertaken in the HIMI region. This work continues to increase the known diversity of benthic fauna of the HIMI region.


Access Constraints
These data are not yet publicly available for download.


Use Constraints
This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference at the provided URL when using these data.


Keywords
modelling
resources
fisheries


Data Set Progress
IN WORK


Data Center
Australian Antarctic Data Centre, Australia    [Information]
Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


Personnel
ANDREW CONSTABLE
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Phone: +61 3 6232 3558
Email: andrew.constable at aad.gov.au
Contact Address:
203 Channel Highway
Australian Antarctic Division
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


ALICJA MOSBAUER
Role: DIF AUTHOR
Phone: +61 3 6221 5038 (international)
Phone: (03) 6221 5038 (within Australia)
Fax: +61 3 6221 5050 (international)
Fax: (03) 6221 5050 (within Australia)
Email: Alicja.Mosbauer at oceans.gov.au
Contact Address:
National Oceans Office
GPO Box 2139
City: Hobart
Province or State: Tasmania
Postal Code: 7000
Country: AUSTRALIA


Publications/References
Lenser T., Constable A. (2007) A nonparametric algorithm to model movement between polygon subdomains in a spatially explicit ecosystem model. Ecological Modelling 206. 79-92; [Ref: 12652]

Peer reviewed:
P. J. Smith, D. Steinke, P.J. McMillan, A.L. Stewart S. M.McVeagh, J. M. Diaz De Astarloa, D. Welsford, R.D. Ward (in press). DNA barcoding highlights a cryptic species of grenadier (genus Macrourus) in the Southern Ocean. Journal of Fish Biology

CCAMLR Working Papers:
Candy, S. G. and Welsford, D. C. 2009. Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2). WG-FSA-09/20 [restricted document]

Candy, S. G., Nowara, G. B., Welsford, D. C. and McKinlay, J. P. 2009. Otolith-based ageing of the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands: modelling fixed and random reader error using multiple readings of a reference collection. WG-FSA-09/21 [restricted document]

Candy, S. G. 2009. Comparison of the precision of direct versus age-length key methods of estimating catch-at-age proportions. WG-FSA-09/22 Rev. 1 [restricted document]

Hibberd, T. 2009. Accuracy of benthic invertebrate by-catch identification by observers operating in the Heard Island and McDonald Islands Patagonian toothfish longline fishery. WG-FSA-09/23 [restricted document]

Welsford, D. C. 2009. Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in April 2009, using the generalised yield model. WG-FSA-09/33 [restricted document]

Nowara, G. B. 2009. Report on a random stratified trawl survey to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2008 and 2009. WG-FSA-09/34 [restricted document]

Constable, A. J. 2009. Further developments of a simulation model, 'Patch', for evaluating management strategies to conserve benthic habitats (vulnerable marine ecosystems) which are potentially vulnerable to impacts from bottom fisheries. WG-FSA-09/42 [restricted document]

Nowara,G. B., Welsford, D. C., Lamb, T. (Australia), Gasco, N., Pruvost, P. and Duhamel, G. (France) 2009. Distribution and abundance of skates on the Kerguelen Plateau (CCAMLR Divisions 58.5.1 and 58.5.2). WG-FSA-09/43 [restricted document]

Welsford, D. C., Constable, A. J. and McKinlay, J. P. 2009. Development of recovery plans for depleted toothfish stocks in the Indian Ocean sector of the Southern Ocean. WG-FSA-09/44 [restricted document]

Snowdon, D., Hamill, J., McEachan, F. and Welsford, D. 2009. Report on the abandoned gillnet retrieval operation conducted by Australia in CCAMLR Statistical Division 58.4.3b (BANZARE Bank). TASO-09/10 [restricted document]

Candy, S. G., Nowara, G. B., Welsford, D. C., McKinlay, J. P. 2009. Otolith-based ageing of the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands: modelling fixed and random reader error using multiple readings of a reference collection. WG-SAM-09/7 [restricted document]

Candy, S. G. 2009. Incorporating sampling variation and random reader error into calculation of effective sample size in the application of age length keys to estimation of catch-at-age proportions. WG-SAM-09/8 [restricted document]

Candy, S. G. 2009. Update of the integrated stock assessment for the patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using catch-at-age data and two years of survey abundance-at-age data. WG-SAM-09/8 [restricted document]

Constable, A. J. 2009. A simulation model for evaluating management strategies to conserve benthic habitats (vulnerable marine ecosystems) which are potentially vulnerable to impacts from bottom fisheries. WG-SAM-09/21 [restricted document]

Kawaguchi, S., Candy, S. and Constable, A. 2009. Characterising krill fishery dynamics using a random walk model. WG-EMM-09/18 [restricted document]

Martin-Smith, K. 2009. Predicting the vulnerability of benthic, habitat-forming organisms to disturbance using life-history characteristics. WG-EMM-09/35 [restricted document]

Constable, A. J. 2009. Southern Ocean Sentinel: Report of the Fist International Workshop in 2009. WG-EMM-09/37 [restricted document]

Constable, A. J. 2009. A simulation model for evaluating management strategies to conserve benthic habitats (vulnerable marine ecosystems) which are potentially vulnerable to impacts from bottom fisheries. WG-SAM-09/21 [restricted document]

Martin-Smith, K. M. 2009. A database of life-history attributes for habitat-forming benthic taxa. WS-VME-09/11 [restricted document]

Martin-Smith, K. 2009. Predicting the vulnerability of bryozoans and sponges to disturbance using life-history characteristics. WS-VME-09/12 [restricted document]

Hibberd, T. and Moore, K. 2009. Field identification guide to Heard Island and McDonald Island (HIMI) benthic invertebrates: a guide for scientific observers aboard fishing vessels. WS-VME-09/13 [restricted document]

Other:
Duhamel, G. Welsford, D. and Constable, A. (2010). Report of 1er Symposium international scientifique sur Le Plateau de Kerguelen: Son ecosysteme marin et ses pecheries. Station marine du MNHN /marinarium, Concarneau, France. 14 au 16 Avril 2010.

Creation and Review Dates
DIF Creation Date: 2008-02-17
Last DIF Revision Date: 2014-08-29

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