Resultados de la búsqueda

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 : Autor(es): S. Waugh, D. Filippi, N. Walker (New Zealand) and D.S. Kirby

2. Assessment of the status of the Champsocephalus gunnari stock in the South Georgia area for the 1990/91 season and TAC calculations for the 1991/92 season

   . Values of catch/effort by age group and by year of fishing were used in conjunction with abundance ... indices from trawl surveys in tuning the VPA. The C. gunnari stock at the start of the 1990/91 season is ... estimated at 184 thousand tonnes. Calculation of TAC was carded out keeping in mind the change to the ... fishing regime brought about by a change in mesh size (90 mm). A TAC of 59.4 thousand tonnes for C ...

   Meeting Document : WG-FSA-91/27 : Autor(es): P.S. Gasiukov (USSR)

3. Re-analysis of CPUE in both species of toothfish in 48.6 area

   Abstract:  The present report re-analyses data regarding CPUE for both species of toothfish in ... northern area of 48.6 (SSRU 48.6A, 48.6G). This report is a re-analysis of the CPUE time series proposed in ... . Here, the  length of the line was used as effort unit and also high CPUE values reported by a Korean ... analysis of catch intention was implemented by using multivariate statistical approach of the catch ...

   Meeting Document : WG-FSA-13/63 : Autor(es): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)

4. 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 : Autor(es): S. Kasatkina and P. Gasyukov (Russia)

5. Stable isotope analysis of tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni) in the Ross and Amundsen Sea regions

   Abstract:  Stable isotopes of carbon and nitrogen (δ 15 N and δ 13 C) in Antarctic toothfish ... (Dissostichus mawsoni) muscle were measured to study the trophic connections of Antarctic toothfish in the Ross ... samples each of four by-catch species (grenadiers, icefish, moray cods and deep-sea cod) were also ... analysed, but only from the Ross Sea region. Appropriate corrections were made to account for the effect of ...

   Meeting Document : WG-EMM-14/50 : Autor(es): M.H. Pinkerton, S.J Bury, J.C.S. Brown, J. Forman and A. Kilimnik (New Zealand)

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

   Abstract:  For the 2014 assessment of Patagonian toothfish (Dissostichus eleginoides) around the ... Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... stratified trawl survey (RSTS) was estimated by comparing abundance estimates of the survey with abundance ... address potential bias in the estimation of q and conclude that the potential bias that may arise from ...

   Meeting Document : WG-SAM-15/34 : Autor(es): W. de la Mare, P. Ziegler and D. Welsford (Australia)

7. 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 : Autor(es): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs

8. Preliminary results of the three season research surveys of the Spanish FV Tronio in Division 58.4.1

   year of the multi-year research survey in the Division 58.4.1, as far as the ice condition allowed, the ... along the area has been carried on. Preliminary results of the last 2015/16 season survey are presented ... together with a comparative analysis of the three-seasons carried out in this division. A depletion ... experiment has been made in each of the prospected SSRUs. Results in SSRUs 5841H and G are not conclusive ...

   Meeting Document : WG-SAM-16/40 Rev. 1 : Autor(es): R. Sarralde, L.J. López-Abellán and S. Barreiro

9. 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 : Autor(es): F. Santa Cruz, B. Ernst and J.A. Arata

10. Updated assessment of the risks of status quo krill fishing and proposed revisions to Conservation Measure 51-07

    Abstract:  We used an ecosystem model to assess the risks of 1) the most recent distribution of ... . Our results show that the concentration of fishing effort since 2009 increases the risks that predator ... exacerbated by increased catches in Subarea 48.1. We briefly discuss the implications of our results and ... alternative approaches for spatial management of the krill fishery. Author(s):  Delegation of the USA Title ...

    Meeting Document : SC-CAMLR-XXXV/BG/36 : Autor(es): Delegation of the USA

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