Full Name
Sous-groupe sur les méthodes d'évaluation acoustique et d'analyse
Lieu:
Ancône, Italie
Date/heure de début de réunion:
Date/heure de fin de réunion:
Dates limites de soumission
lundi 11 mai 2009 à 00:00 Australie/Hobart (Document de groupe de travail)
Rapport de la réunion:
f-sc-xxviii-a8.pdf
(320.06 Ko)
Documents de réunion
Documents
Ordre du jour
Ordre du jour
Développer Commentaires | Développer Document | Réduire
1 Introduction
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1.1 Opening of meeting
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1.2 Meeting terms of reference and adoption of the agenda
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2 Provide advice that will assist in quantifying uncertainties in krill B0 estimates
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SG-ASAM-09/08 | ACOUSTIC IDENTIFICATION AND SIZE ESTIMATION OF EUPHAUSIIDS R. Korneliussen and G. Skaret (Norway) |
SG-ASAM-09/12 | TOWARDS A CCAMLR PROTOCOL FOR THE ESTIMATION OF KRILL BIOMASS T. Jarvis (Australia) and K. Reid (Secretariat) |
2.2 Collate a set of net-validated acoustic data and evaluate whether current acoustic target identification methods are biased
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SG-ASAM-09/04 | Net-based verification of acoustic techniques used to identify Antarctic krill J. Watkins and S. Fielding (United Kingdom) |
2.3 Provide direction towards developing a probability density function for the estimate of B0 based on the current understanding of uncertainties in various parameter values.
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2.1 Review recent research results including developments in target strength modelling and observations on krill orientation and material properties
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SG-ASAM-09/13 | APPLYING A TS-PROBE FOR MEASURING ANTARCTIC KRILL (EUPHAUSIA SUPERBA) TARGET STRENGTH IN SITU: PROCEDURES AND DATA ANALYSIS G. Skaret, L. Calise and E. Ona (Norway) |
3 Document the current agreed protocols for krill B0 assessment
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4 Discuss the use of ancillary acoustic data (e.g. from finfish surveys, exploratory fisheries data and commercial fisheries echo sounders)
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SG-ASAM-09/09 | UNDERWATER ACOUSTIC INSTRUMENTATION FOR ANTARCTIC APPLICATIONS L. Andersen (Norway) |
4.2 Document protocols for analysing, processing, and interpreting ancillary acoustic data (e.g., data collected during exploratory fisheries)
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4.3 Determine whether such data can provide krill biomass estimates from areas that are not regularly surveyed
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4.4 Discuss future needs for acoustic instrumentation in the Antarctic
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4.1 Review recent research results involving collection of ancillary acoustic data
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5 Evaluate results from IPY surveys in 2008
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SG-ASAM-09/05 | Preliminary acoustic results from the New Zealand IPY-CAML survey of the Ross Sea region in February-March 2008 R. O’Driscoll, G. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet (New Zealand) |
SG-ASAM-09/11 | SUMMARY OF ACOUSTIC DATA AND RELATED DATA COLLECTED DURING IPY SURVEYS Secretariat |
5.2 Presentation of new results from IPY surveys
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5.3 Determine whether data can provide krill biomass estimates from areas that are not regularly surveyed
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6 Evaluate developments in target strength modelling and other new observations on Antarctic fish species
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SG-ASAM-09/06 | Target strength of mackerel icefish (Champsocephalus gunnari) from a scattering model G. Macaulay (New Zealand) |
SG-ASAM-09/10 | TARGET STRENGTH STUDIES ON ANTARCTIC SILVERFISH (PLEURAGRAMMA ANTARCTICUM) IN THE ROSS SEA M. Azzali, I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi (Italy) |
6.1 Presentation of new results
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7 Attempt to resolve difficulties identified with the swept-area estimation of icefish abundance
7.1 Discuss appropriate application of the adjustment factor for trawl headline height used in surveys for C. gunnari
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8 Suggestions for timing/venue of next meeting
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9 Recommendations to Scientific Committee
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10 Adoption of Report
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11 Close of Meeting
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5.1 Review acoustic data and related metadata submitted to CCAMLR