Resultados de la búsqueda
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DEVELOPING MODELS OF ANTARCTIC MARINE ECOSYSTEMS IN SUPPORT OF CCAMLR AND IWC
Abstract: Ecosystem models are being developed to explore a range of issues globally. This paper ... to the use of ecosystem models in CCAMLR and the IWC and a history of the developmental work in those ... that need to be considered in parameterising a model, providing input data for those models and for ... being addressed by the joint CCAMLR-IWC workshop to be held in August 2008. Author(s): A. Constable ...
Meeting Document : WG-EMM-08/14 : Autor(es): A. Constable (Australia)
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CCAMLR-IWC Export Group Report: Primary Productivity and Phytopalnkton
their use in the Southern Ocean. A brief history of algorithms linking ocean color to primary ... regional, carbon-based approaches. Using monthly climatologies of SeaWiFS chlorophyll, a phenology of ... information regarding phytoplankton species composition and succession is summarized. Finally, a review of ... ecosystem and biogeochemical models for the Southern Ocean is presented, with a focus on those models that ...
Meeting Document : CCAMLR-IWC-WS-08/13 : Autor(es): Matear, R., Mongin, M., Lovenduski, N., Strutton, P.
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The SCAR Antarctic digital topographic database
Abstract: The Antarctic digital topographic database is the outcome of a truly international ... Scientific Committee on Antarctic Research (SCAR), during a two-year period. Over 200 maps, at scales ranging ... from 1:200 000 to 1:5 000 000, were digitized for the project and reference was made to a similar ... derived from the different sources has produced a seamless map of Antarctica which has the most up-to-date ...
Meeting Document : SC-CAMLR-XII/BG/16 : Autor(es): Delegation of United Kingdom
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Data requirements for research fishing
Measure 24-01 (scientific research) requires that catch, effort and biological data be reported on a haul ... under CM 41-01 (exploratory fisheries) requires that catch, effort and biological data be reported on a ... reporting requirements for research fishing. A harmonised approach is proposed to WG-SAM for consideration ... research fishing being reported on a separate form. Author(s): Secretariat Title: Data requirements for ...
Meeting Document : WG-SAM-12/07 : Autor(es): Secretariat
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Fishery selection for Patagonian toothfish in CCAMLR Subarea 48.3, asymptotic or dome shaped?
with deploying fishing gear at increasing depths, there is the potential for a dome shaped selection ... highly uncertain quantities of cryptic biomass. A review of the fishery and tagging data from the ... information to determine the most likely fishery selection profile. A simple metric, the distribution of tag ... age with depth, is suggested as an indicator that a dome selection pattern is unlikely in the 48.3 ...
Meeting Document : WG-SAM-15/29 : Autor(es): C. Darby, V. Laptikhovsky and M. Soeffker (United Kingdom)
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The factors causing impact on the toothfish catch estimation on board of fishing vessels
done often in a difficult weather conditions at sea, which can cause a negative impact on the ... the informational communication on board of fishing vessels, can lead to a significant distortion of ... of fishing vessels. Author(s): K. Demianenko, P. Zabroda, I. Slypko, L. Pshenichnov, A. Bazhan, O ...
Meeting Document : WG-SAM-2019/14 : Autor(es): K. Demianenko, P. Zabroda, I. Slypko, L. Pshenichnov, A. Bazhan, O. Diripasko and D. Marichev
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COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY
from about 56 000 pairs in 2001 to some 21 000 pairs in 2009, a loss of 35 000 pairs (>60%) in eight ... 000 pairs in 2003. In the Western Cape, numbers decreased from a mean of 35 000 pairs in 2001–2005 to ... , recent decreases in the Western Cape were greater than expected given a continuing high abundance of ... anchovy. In this province, there was a south-east displacement of prey around 2000, which led to a ...
Meeting Document : WG-EMM-11/P8 : Autor(es): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington
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Beach debris survey, Signy Island, South Orkney Islands, 2006/07
, mass and size categories. A total of 50 items weighing 7.6 kg were collected. The number of items found ... recovered had decreased (an increase of 85.2% and decrease of 68.8% since 2005/06 respectively). There was a ... ), this increase representing a continuation of the rise in packaging bands experienced over recent ... plastics and other materials with a high resistance to degradation in the marine environment remains a ...
Meeting Document : SC-CAMLR-XXVI/BG/19 : Autor(es): Delegation of the United Kingdom
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
and 88.2 since 2001 are updated. The paper provides a preliminary update of the tag-release and tag ... described in this paper for the first time. Overall, a reported total of 12 177 Antarctic toothfish have ... movements of Antarctic toothfish were observed from fish tagged by fishing vessels. A total of four fish ... in SSRU 88.1J. There was also some evidence that more fish are recaptured after a longer time at ...
Meeting Document : WG-SAM-07/5 : Autor(es): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
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Using the EPOC modelling framework to assess management procedures for Antarctic krill in Statistical Area 48: evaluating spatial differences in productivity of Antarctic krill
development of a harvest strategy are whether (i) spatial differences in the productivity of krill give rise ... regional differences in krill dynamics and cause differential impacts on predators as a result ... , particularly as the fishery expands to take the large-scale catch limit. A fourth issue is to determine whether ... Productivity, Ocean and Climate (EPOC) modelling framework to develop a spatially explicit model of Antarctic ...
Meeting Document : WG-EMM-06/38 Rev. 1 : Autor(es): A.J. Constable (Australia)