Resultados de la búsqueda
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A balanced trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
Abstract: We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea with which to investigate effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). A ... survey of the available literature provided an initial set of parameters describing the abundance ... (diets, predators) for major groups of biota. We also estimated the level of uncertainty on these ...
Meeting Document : WG-EMM-07/18 : Autor(es): M.H. Pinkerton, S.M. Hanchet and J. Bradford-Grieve (New Zealand)
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A review of models of Southern Ocean ecosystems: krill, ecosystems and the impacts of harvesting
Abstract: An ecosystem approach for the management of human activities in the Southern Ocean is ... enshrined in the principles of the Commission for the Conservation of Antarctic Marine Living Resources ... (CCAMLR). The implementation of such an approach requires an understanding of the wider dynamics of the ... ecosystem, which is best achieved through the development of ecosystem models. However, not all models will ...
Meeting Document : WG-EMM-04/67 : Autor(es): S.L. Hill, E.J. Murphy, K. Reid, P.N. Trathan (United Kingdom), A. Constable (Australia)
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Estimates of global krill abundance based on recent acoustic density measurements and their implications for the calculation of precautionary catch limits and the designation of management areas
Abstract: The global abundance of krill is estimated using recent estimates of krill density from ... acoustic surveys and historical information on the overall range of krill. The biomass estimates fall ... between 64 and 137 million tonnes- at the low end of values that have been suggested in the past. The ... differences between our estimates and others can be explained by a number of factors such as: an ...
Meeting Document : WG-EMM-99/22 : Autor(es): S. Nicol, A. Constable and T. Pauly (Australia)
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2016 –Part B: Description of available spatial data
Abstract: The Delegation of Germany presents to the Scientific Committee the scientific ... background in support of the development of a marine protected area (MPA) in the Weddell Sea planning area ... separate documents (Part A-C). SC-CAMLR-XXXV/BG/11 (Part A) sets out the general context of the ... establishment of CCAMLR-MPAs and provides the background information on the Weddell Sea MPA (WSMPA) planning ...
Meeting Document : SC-CAMLR-XXXV/BG/12 : Autor(es): Delegation of Germany
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The feeding peculiarities of the Antarctic seals in the region of the archipelago of Argentina Islands
Abstract: The detailed analysis of a food of the Antarctic species of seals around Argentine ... that krill (Euphausia superba) is the main type of food for the major species of seals in region. Krill ... makes 97,2 % to a diet of fur seals (Arctocephalus gazella) and 90 % to a diet crabeater seal (Lobodon ... can be used as «species indicators» of krill distribution and quantity in the given region. It is ...
Meeting Document : WG-EMM-12/P01 : Autor(es): I. Dykyy
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
Abstract: We present the first differentiated information on the biology and ecological niche of ... Macrourus whitsoni and M. caml in the Ross Sea region of the Southern Ocean. Fish were caught by New Zealand ... . whitsoni examined was 65 cm TL and 1.3 kg. The two main morphological characters (number of rays in the ... left pelvic fin; number of rows of teeth in the lower jaw) were very effective at distinguishing ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Autor(es): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2017 – Reflection of the recommendations by WG-EMM-16 and SC-CAMLR-XXXV
carried out during the 2016/2017 intersessional period. Chapter 1 of this working group paper informs on ... in support of the development of a CCAMLR MPA in the Weddell Sea. Germany was asked to carry out ... , the Delegation of Germany intends to update the Scientific Committee on the current state of the work ... the new data retrieval process. Chapter 2 presents the updated analyses of relevant data layers ...
Meeting Document : SC-CAMLR-XXXVI/BG/28 : Autor(es): Delegation of Germany
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The results of performance of tagging programs of the Korean exploratory fishery for Dissostichus spp. in 88.1 in the 2010/11 season
presented the results from the fisheries and comparison of statistics in each SSRU. Total catch including by ... the total catches in 78 hauls while by-catches were 133 fish. The CPUEs of Dissostichus Spp. in 88.1 J ... and L appeared dramatic higher rate than the CPUEs in 88.1 B and C. Mean CPUE (number / km) of ... Dissostichus Spp. for total of 78 sets, for instance, was 16.67911. This figure was higher than the figure of ...
Meeting Document : WG-FSA-11/54 : Autor(es): T. Jung and H.J. Choi (Republic of Korea)
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Review of Russian investigations of krill escape through the meshes of commercial trawls: approaches to estimating gross removal at krill fishery
Abstract: In this study the review of Russian investigations of krill escapement through the ... trawl netting fulfilled by means of instrumental (acoustic observations, underwater observations, method ... of fine-meshed chafers) and analytical methods are presented. The main factors affected on krill ... escapement though trawl netting and escape mortality are shown. The author discusses the results of these ...
Meeting Document : WG-EMM-10/19 : Autor(es): S.M. Kasatkina (Russia)
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Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate
Adélie penguin colony with the aim of determining minimum sample sizes required to detect systematic ... temporal change in CEMP Parameter A5 (penguin foraging trip duration). Two different types of systematic ... sudden step change in parameter values from one average level to another. Modelling showed that change of ... the latter form could be more quickly and powerfully detected at a range of effect sizes than could ...
Meeting Document : WG-EMM-05/22 : Autor(es): J. Clarke, C. Southwell and L.M. Emmerson (Australia)