Resultados de la búsqueda
-
Development of a generic operating model framework for data collection, assessment method and management strategy evaluations
framework will have a number of modules representing the fish population dynamics, harvest by fishing fleets ... Abstract: A generic spatially-explicit age-structured model framework is in development that will ... enable to evaluate data collection protocols, assessment methods and management strategies. The model ... framework is programmed in R to promote transparency and interactions between researchers. It is based on ...
Meeting Document : WG-SAM-11/13 : Autor(es): P.E. Ziegler (Australia)
-
USING AUTOMATED CAMERAS AS A COST-EFFECTIVE MEANS OF EXTENDING LAND-BASED PREDATOR MONITORING
developed for use in the extreme conditions of Antarctica, (2) a preliminary assessment of the utility of ... and reliable tools for surveillance and monitoring. This paper describes (1) the kinds of observations ... expand the spatial extent of Adélie penguin monitoring, and to extend monitoring to additional land-based ... breeding species, in east Antarctica. Author(s): C. Southwell, L. Emmerson and K. Newbery (Australia ...
Meeting Document : WG-EMM-11/37 : Autor(es): C. Southwell, L. Emmerson and K. Newbery (Australia)
-
How similar are CEMP indices from adjacent locations? A case of study using Pygoscelis adeliae and P. papua monitoring data from three breeding colonies on King George Island
Abstract: What is the spatial scale of monitoring conducted at an individual CCAMLR Ecosystem ... found evidence of and site- and species-specific differences that highlight heterogeneity in indices of ... several monitoring clusters like that on King George Island to help identify the relative importance of ... local environmental factors and better estimate the range of variability that such factors can introduce ...
Meeting Document : WG-EMM-14/43 : Autor(es): M.M. Santos (Argentina), M. Korczak-Abshire (Poland), M.A. Juáres (Argentina), W.Z. Trivelpiece and J.T. Hinke (USA)
-
An assessment of seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, March–May 1997
interactions with seabirds, and the effectiveness of measures employed to mitigate seabird mortality. In this ... into the side of the vessel. Few birds were generally seen following the vessel during setting ... to dive; large numbers of black-browed albatrosses were seen when the moon was full, but were ... effectiveness of streamer-lines in mitigating bird mortality found no significant difference due to a streamer ...
Meeting Document : WG-FSA-97/09 : Autor(es): Ashford, J.R., Croxall, J.P.
-
Operations of Chilean vessel Betanzos fishing Antarctic krill (Euphausia superba) (June 2011 – April 2012)
Abstract: This paper describes the main results obtained in krill fishing (Euphausia superba ... ) made by the conventional trawler Betanzos in the Antarctic region (Subareas 48.1, 48.2 and 48.3 ... , fishing yields and length frequency distributions of captured krills. Author(s): P.M. Arana (Chile) Title ... : Operations of Chilean vessel Betanzos fishing Antarctic krill (Euphausia superba) (June 2011 – April 2012 ...
Meeting Document : WG-EMM-12/30 : Autor(es): P.M. Arana (Chile)
-
A method for preparing large numbers of otolith sections for viewing by scanning electron microscope
Abstract: In an investigation of the age structure of a population of Notothenia coriiceps ... facilitate present methods of ageing fish populations, especially for fishery work in the Antarctic where ... Richardson at the South Orkney Islands, Antarctica, the microstructure of otoliths was examined. Progress is ... reported on a method used for processing large numbers of otoliths using a scanning electron microscope ...
Meeting Document : WG-FSA-93/07 : Autor(es): J.R. Ashford, K. Robinson and M.G. White (United Kingdom)
-
Collaborating to support effective protection of Southern Ocean ecosystems
transhipments in the Convention Area; tightening legal loopholes for those involved in IUU fishing; implementing ... Abstract: In this paper, COLTO and ASOC highlight important enforcement and compliance actions ... undertaken since CCAMLR XXXV and recommend further steps that CCAMLR can take to demonstrate leadership in ... compliance and enforcement as well as in environmental protection, including additional regulations for ...
Meeting Document : CCAMLR-XXXVI/BG/29 : Autor(es): Submitted by ASOC and COLTO
-
Populations of surface-nesting seabirds at Marion Island, 1994/95 to 2002/03
in numbers of king penguin chicks surviving to the end of winter. Author(s): R.J.M. Crawford, J ... Abstract: During the 1990s and early 2000s, populations of surface-nesting seabirds at Marion ... Island showed different trends, but for the majority of species numbers decreased. Reduced numbers of ... attributed to an altered availability of food. Decreases in numbers of dark-mantled sooty albatrosses ...
Meeting Document : WG-EMM-03/8 : Autor(es): R.J.M. Crawford, J. Cooper, B.M. Dyer, M.D. Greyling, N.T.W. Klages, P.G. Ryan, S.L. Petersen, L.G. Underhill, L. Upfold, W. Wilkinson, M.S. de Villiers, S. du Plessis, M. du Toit, T.M. Leshoro, A.B. Makhado, M.S. Mason, D. Merkle, D. Tshingana, V.L. Ward and P.A. Whittington (South Africa)
-
Results of fish stock assessment survey, South Georgia, December 1987 – January 1988
complements earlier surveys in the same area and showed that most of the stocks are continuing to decline ... in abundance. Author(s): United States of America Title: Results of fish stock assessment survey ... Abstract: Commercial fish stocks around South Georgia have been declining since the early 1970 ... . Notothenia rossii is showing no signs of recovery and Champsocephalus gunnari is likely to continue declining ...
Meeting Document : SC-CAMLR-VII/BG/23 : Autor(es): United States of America
-
Long-term observations from Antarctica demonstrate that mismatched scales of fisheries management and predator–prey interaction lead to erroneous conclusions about precaution
that can help conserve marine predators. Uncertainty about the impacts of fisheries removals on ... dependent predators bolsters this perspective, but consideration of the spatio-temporal scales over which ... are as precautionary as presumed. Antarctic krill are targeted by the largest fishery in the Southern ... local harvest rates of krill were ≥ 0.1, and this effect was similar in magnitude to that of poor ...
Meeting Document : WG-EMM-2019/11 : Autor(es): G.M. Watters, J.T. Hinke and C.S. Reiss