Résultats de la recherche

1. UPDATED PRELIMINARY RESULTS OF AN ECOLOGICAL RISK ASSESSMENT FOR SEABIRDS AND MARINE MAMMALS WITH RISK OF FISHERIES INTERACTIONS

   Abstract:  We examined a methodology for assessing potential risk of interactions between ... fisheries and species of special interest (seabirds and marine mammals) by applying a Productivity ... -Susceptibility Analysis to a data set of species distribution, biological information and fishing effort. This ... type of Level Two Ecological Risk Assessment (ERA) has been used across fishery management regimes to ...

   Meeting Document : WG-FSA-08/51 : Auteur(s): S. Waugh, D. Filippi, N. Walker (New Zealand) and D.S. Kirby

2. Analysis of krill fishery operations in Subarea 48.1: spatial-time distribution of CPUE and fishing efforts

   values of standardized CPUE indices in the Subarea 48.1 for the last 25 years. We continue to investigate ... krill fishery data for understanding reasons of this ‘high CPUE’ regime. The authors present the ... analysis of spatial- temporal variability of krill fishery based on CPUE trends, trawling duration, catch ... the changes in fishing methods but is result of the influence of changing environment. Impact of ...

   Meeting Document : WG-EMM-14/21 : Auteur(s): S. Kasatkina and P. Gasyukov (Russia)

3. The reliability of VHF telemetry data for measuring attendance patterns of marine predators: a comparison with Time Depth Recorder data

   patterns of otariid seals. These data have been used in a wide variety of ways, from characterizing the ... reproductive and foraging ecology of these species to inferring ecosystem changes based on variation in ... attendance patterns. Yet the accuracy of VHF data has never been appropriately evaluated. Our study compares ... -collected Time-and-Depth Recorder (TDR) data used as the ‘true’ measurement of time spent onshore. Within ...

   Meeting Document : WG-EMM-15/P05 : Auteur(s): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs

4. Spatio–temporal dynamics of Antarctic krill fishery: identification of fishing hotspots

   of the greatest fishery in Antarctic waters. Management of the fishery is based on a precautionary ... and temporal pattern of the fishery is only described in meso to macro scales (>>10 4 km 2 ... ). Here we present a novel analysis to identified fishing grounds, using statistical analysis of hotspots ... , in this case, fishing hotspots (FH), combined with a temporal analysis to assess persistence of these ...

   Meeting Document : WG-EMM-16/52 : Auteur(s): F. Santa Cruz, B. Ernst and J.A. Arata

5. The effect of abiotic factors on the reproduction of seabirds on the Argentine Islands

   the Ukrainian Antarctic station "Academik Vernadsky". The most numerous breeding colony of ... among the newborn penguins on the Galindez Is caused by starvation. The number of residential nests ... decreased almost three times. Underwater surveys conducted by us in this period in the area of Galindez Is ...   witness about the presence of large amount of krill, which wasn’t available for all the species of sea ...

   Meeting Document : WG-EMM-16/59 : Auteur(s): І.V. Dykyy

6. Results of 2016 pop-off satellite archival tagging of Antarctic toothfish in the Ross Sea region

   southern shelf (SSRUs 88.1M,J,L) and northern seamount (SSRUs 88.1B,C) areas of the Ross Sea region. The ... available types of PSAT tags, and to develop methods to support research and monitoring of the Ross Sea ... region Marine Protected Area. All fish were tagged as part of research longline efforts under CM 24-01 ... after the 2015/16 toothfish fishing season had ended. A total of 10 PSAT tags from two manufacturers ...

   Meeting Document : WG-SAM-17/33 : Auteur(s): C.D. Jones and S.J. Parker

7. ASSESSMENT OF SPATIAL-TEMPORAL DYNAMICS OF STANDARDIZED CPUE FOR KRILL FISHERY IN THE AREA 48

   Abstract:  The spatial-temporal dynamics of standardized abundance indices of krill in Area 48 ... yesteryear the authors revealed “diagnostics specificity” of GLMM tuning for CPUE standardization: many hauls ... normal distribution. In this study the approaches to improve the diagnostics of GLLM tuning by using ... aggregated haul-by-haul data are shown. The trends of CPUE spatial-temporal variability and the factors ...

   Meeting Document : WG-EMM-11/28 : Auteur(s): S.M. Kasatkina and P.S. Gasyukov (Russia)

8. CURRENT ABUNDANCE OF ADÉLIE PENGUIN BREEDING POPULATIONS ALONG THE KEMP AND MAC.ROBERTSON LAND COASTS, EAST ANTARCTICA: APPLICATION OF NEW SURVEY AND ESTIMATION METHODS FOR BROAD-SCALE POPULATION ASSESSMENT

   Abstract:  Application of new methods for estimating the abundance of breeding Adélie penguin ... populations along the Kemp and Mac.Robertson Land coasts of east Antarctica are described. Methods include use ... of sample survey designs, distance sampling to estimate detectability, virtual delineation of sample ... plot boundaries, cameras to collect adjustment data and adjustment of counts for detectability and ...

   Meeting Document : WG-EMM-11/31 : Auteur(s): C. Southwell, J. McKinlay, K. Newbery, L. Emmerson, M. Low, R. Pike, D. Wilson, D. Southwell and L. Einoder (Australia)

9. ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA

   Abstract:  To investigate spatio-temporal variability of krill body length and number of bycatch ... hierarchical Bayesian model. The model was composed of multistage cluster units (i.e., years, subarea, vessels ... variability of krill population structure and a difficulty in predicting krill population dynamics. Variances ... of krill length and bycatch fish number by sampling stages were calculated by the multistage sampling ...

   Meeting Document : WG-EMM-11/39 : Auteur(s): T. Okuda and M. Kiyota (Japan)

10. Assessment of the status of the toothfish stock in Subarea 48.3

    Abstract:  We conducted several different assessments of toothfish in Subarea 48.3 using four ... apparently not sufficient to generate realistic estimates of current biomass using GYM. ASPM runs coded in AD ... loss rates and fishery age-based selectivity. Estimations based on local depletions of toothfish ... likely current exploitable biomass of toothfish in Subarea 48.3 is between 45,000 and 62,000 t. GYM was ...

    Meeting Document : WG-FSA-04/82 : Auteur(s): D.J. Agnew and G.P. Kirkwood (United Kingdom)

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