Результаты поиска

1. Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions

   Abstract:  The upper-arm of the length-dependent fishing selectivity function for trawlers fishing ... for Patagonian toothfish around Heard Island (Division 58.5.2) was modelled as the exponential of a ... from commercial operations of each of trawlers and longliners fishing concurrently for 3 seasons ... assuming that, for the upper range of lengths, fish are fully selected by longliners but not by trawlers ...

   Meeting Document : WG-FSA-06/35 : Автор(ы): S.G. Candy (Australia)

2. Fish Heaven: a Monte Carlo, spatially explicit single species fishery model for the testing of parameter estimation methods

   basic features of standard fish modeling with a number of optional extras. It was designed within an ... object oriented framework to allow for the possible extension in a number of directions. In particular it ... was designed with the view of testing the efficacy of different statistical sampling regimes given ... various plausible spatial structures of fish stock. The model has a simple age and space structured ...

   Meeting Document : WG-FSA-00/36 : Автор(ы): I. Ball and A. Constable (Australia)

3. AGREEMENT ON THE CONSERVATION OF ALBATROSSES AND PETRELS – REPORT TO AD HOC WG-IMAF

   Abstract:  The Agreement on the Conservation of Albatrosses and Petrels held the Third Session of ... its Meeting of the Parties from 27 April – 1 May 2009. Key outcomes of relevance to the Ad Hoc WG-IMAF ... were the adoption of the Advisory Committee’s Work Programme for 2010-2012 and the granting of approval ... for the ACAP Secretariat to enter into a Memorandum of Understanding with CCAMLR. The proposed MoU has ...

   Meeting Document : WG-IMAF-09/17 : Автор(ы): Submitted by ACAP

4. A risk management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems

   adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems (VMEs) are avoided. Due to the high ... levels of uncertainty surrounding both the evidence of VME presence and the consequences of interaction ... with different types of gear, a risk management framework is proposed, similar to that which has been ... used successfully by IMAF to minimise the effects of longline fishing mortality on seabirds. The aim of ...

   Meeting Document : WG-EMM-08/37 : Автор(ы): K. Martin-Smith (Australia)

5. SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY

   Abstract:  In addition to a review of published studies on Adelie penguin abundance at breeding ... of that kind. The present study attempts to implement this estimator in the form of a parametric ... bootstrap model, utilising as input data published counts of Adelie penguins and estimates of their ... uncertainty at breeding sites in Antarctica. To achieve this task, a menu-driven suite of routines titled ...

   Meeting Document : WG-EMM-PSW-08/11 : Автор(ы): J.P. McKinlay and C.J. Southwell (Australia)

6. On acceptable scattering of longlines geo-referencing in the toothfish fishery in the CAMLR Convention Area

   Abstract:  The issues of longlines geo-referencing during the exploratory fisheries of the ... toothfish in the Convention Area are discussed. Cases of differences in the coordinates of settings and ... haulings are considered. The estimation of the maximum possible variation of the coordinates in the depths ... range of 550-3000 m was performed. It is shown that the differences of coordinates of settings and ...

   Meeting Document : WG-SAM-2019/22 : Автор(ы): O. Krasnoborodko

7. An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort

   this new method are similar to those of the Agnew and Kirkwood (2005) method, and this suggests that ... the current method is adequate under circumstances of low evasion and when good knowledge exists that ... zero observations reflect zero illegal fishing. The new method performs better in the case of zero ... detections and can potentially better handle the evasion of detection by illegal activity. Both the new and ...

   Meeting Document : WG-FSA-05/P7 : Автор(ы): Ball, I.

8. An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort

   is adequate under circumstances of low evasion and for when good knowledge exists that zero ... observations reflects zero illegal fishing. The new method performs better in the case of zero detections and ... can potentially better handle the evasion of detection by illegal activity. Both the new and the ... current method suffer from the type of observations method used, which directly affects the system. This ...

   Meeting Document : WG-FSA-04/63 : Автор(ы): I. Ball (Australia)

9. Trends of the Dissostichus eleginoides stock using the sequential population analysis (SPA) model in Subarea 48.3: 1992-1996

   Abstract:  This paper presents a model of Sequential Population Analysis (SPA), based in catch at ... age data, for the evaluation of the state of the stock of Dissostichus eleginoides from the area 48.3 ... between 1992 to 1996. This, with the objective of knowing the results of management of this stock made ... for the non-lineal calculus process. The application of this model, tuned by auxiliary information of ...

   Meeting Document : SC-CAMLR-XV/BG/14 : Автор(ы): Delegation of Chile

10. Diet and feeding ecology of the diving petrels Pelecanoides georgicus and P. urinatrix at South Georgia

    Abstract:  The diet of the diving petrels Pelecanoides georgicus and P. urinatrix was studied ... Bird Island, South Georgia. The diet of both species was dominated by crustaceans. in particular ... euphausiids (mainly Euphausia superba and some ThysCll1oessa), which contributed 47-76% of the biomass of ... crustaceans in the diet of P. georgicus. and copepods, which contributed 71 % of the biomass of crustaceans in ...

    Meeting Document : WG-EMM-97/10 : Автор(ы): Croxall, J.P., Prince, P.A., Hill, H.J., Edwards, T.M., Reid, K.

Страницы