Resultados de la búsqueda

1. Approaches to monitoring and assessing toothfish in new and exploratory fisheries, with particular reference to Subarea 88.1

   would be imprudent to rely solely on any one of these methods at the present time. We recommend that tag ... recapture experiments, or trawl surveys, be used in conjunction with experimental manipulation of effort to ... monitor toothfish – and perhaps as importantly – the wider ecosystem effects of the toothfish fisheries ... effort manipulation approach in all New and Exploratory fisheries, and in particular the current active ...

   Meeting Document : WG-FSA-SAM-04/08 : Autor(es): ODriscoll, R.L., Hanchet, S.M.

2. Beach litter accumulation and retention at sub-Antarctic Marion Island: trends in relation to longline fishing activity

   1998 are reported, and compared to surveys done in 1984 and 1995, prior to the onset of unregulated ... while fishing equipment also doubled during this period. An increase in the number and proportion of ... illegal fishing in this area. An exponential increase in the litter accumulation was noted in annual ... Spanish script items was noted, while French items only appeared after the onset of illegal fishing ...

   Meeting Document : CCAMLR-XVII/BG/25 : Autor(es): Delegation of South Africa

3. REFERENCE OBSERVATIONS FOR VALIDATING AND TUNING OPERATING MODELS FOR KRILL FISHERY MANAGEMENT IN AREA 48

   reference points for the density of krill, and the abundance of “generic” seals, penguins and whales in 1970 ... considered a definitive description of the relevant dynamics. This exercise resulted in population sizes for ... Abstract:  In 2007 WG-SAM defined a set of reference observations for validating and tuning ... . The numerical calendar is a partly subjective interpretation of limited data and should not be ...

   Meeting Document : WG-EMM-08/10 : Autor(es): S. Hill (United Kingdom), J. Hinke (USA), É. Plagányi (South Africa) and G. Watters (USA)

4. Does large-scale ocean circulation structure life history connectivity in Antarctic toothfish (Dissostichus mawsoni)?

   : successfully spawning fish spend only a part of their adult life history in the Ross Sea; areas in the eastern ... (Dissostichus mawsoni) in the Southeast Pacific Basin (SPB) and Ross Sea, with a life history structured by the ... environmental heterogeneity, yet the chemistry in otolith nuclei, deposited during early life, showed no ... differences. Age data showed only adult fish in catches on the Pacific-Antarctic Ridge in the SPB; and ...

   Meeting Document : WG-FSA-12/P02 : Autor(es): J. Ashford, M. Dinniman, C. Brooks, A. Andrews, E. Hofmann, G. Cailliet, C. Jones and N. Ramanna

5. Report on an Antarctic cetacean survey on board a Chilean fishing vessel in February 2016

   , comprising 217 individuals, including calves of both humpback and fin whales. The preliminary results of the ... video cameras to the bow and stern section of the ship to assess any potential behavioural response to ... Abstract:  During a CCAMLR endorsed fishing survey on board the Chilean trawler ‘Cabo de Hornos ... ’ around the South Orkney Islands and Elephant Island, a trained marine mammal observer conducted a ...

   Meeting Document : WG-FSA-16/19 : Autor(es): S. Viquerat, H. Herr, K.-H. Kock and P. Arana

6. A preliminary stock assessment in SSRUS 486A, G: A Bayesian and CPUE based biomass dynamic model

   implemented in each species of toothfish. Tagging data was not used in any of the toothfish models, because of ... the low number of recovered individuals and low tag size-overlap. Modelling abundance in both species ... contribution to estimate abundance in a simple biomass dynamic model for both species of toothfish in northern ... sets in which both species are present, and thus, an analysis of catch intention was implemented by ...

   Meeting Document : WG-SAM-13/29 : Autor(es): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)

7. Educational observer on board fishing vessels in Brazil

   /obligation on the usage of these measures is in force. Author(s):  Delegation of Brazil Title:  Educational ... Abstract:  We inquired several social aspects of two Brazilian crews working in pelagic longline ... order to investigate the social and professional character of each crew member. Overall, our results ... show a low level of studies among these professionals. We suggest the implementation of a new concept ...

   Meeting Document : SC-CAMLR-XXV/BG/20 : Autor(es): Delegation of Brazil

8. A bioenergetics model for estimating prey consumption by an Adélie penguin population in east Antarctica

   . The model predicts prey consumption throughout the breeding season and incorporates uncertainty in ... , and a year with low breeding success. On the basis of variable breeding success and the proportion of ... krill and fish in their diet, we estimate that this population consumes 78-406 t of krill and 4-46 t of ... Abstract:  We developed a bioenergetics model to estimate prey consumption by the Adelie penguin ...

   Meeting Document : WG-EMM-16/P10 : Autor(es): D. Southwell, L. Emmerson, J. Forcada and C. Southwell

9. Krill catch distribution in relation to predator colonies, 1987-1991

   Abstract:  The distribution of krill catches in relation to predator colonies in Subareas 48.1 and ... December and March, and these are between 10 and 18% of the estimated total penguin consumption in this ... period. The pattern of fishing is very consistent in all years 1988-1991 in Subarea 48.1, but is more ... % of the estimated total penguin consumption. The largest catch taken in this critical period was 94 ...

   Meeting Document : WG-KRILL-92/18 : Autor(es): Secretariat

10. Estimating toothfish biomass in Subarea 48.3 using local depletions

    means of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas ... of 12’ by 12’ where there had been forty or more hauls in any particular year. There were 62 ... individual vessel fishing events in these areas over this period, 40 of which appeared to be depletions ... CPUE over the four years and multiplying by the total fishable area in Subarea 48.3 we arrived at an ...

    Meeting Document : WG-FSA-SAM-04/18 : Autor(es): Pearce, J., Agnew, D.

Páginas