Search results
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Environmental response of upper trophic level predators reveals a system change in an Antarctic marine ecosystem
Abstract: In the Antarctic Peninsula region current, long-term changes in the physical ... increase in the frequency of years of low reproductive output. Changes in the population structure of krill ... , and its relationship with reproductive performance, suggest that the biomass of krill within the ... largest size class was sufficient to support predator demand in the 1980's but not in the 1990's ...
Meeting Document : WG-EMM-01/21 : Author(s): K. Reid and J.P. Croxall (United Kingdom)
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MaxEnt reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia 1996–2000
of mean krill density within two survey boxes of dimensions 80 km x 100 km to the north east and ... north west of South Georgia. The reconstructions are generated from acoustic line transect survey data ... gathered in the boxes in austral summers 1996 – 2000. Krill densities had previously been determined at ... approximately 0.5 km intervals along transect for each of the ten 80 km transects in each box, providing about ...
Meeting Document : WG-EMM-02/36 : Author(s): M.H. Wafy, A.S. Brierley, S.F. Gull and J.L. Watkins (United Kingdom)
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Anthropogenic feather soiling, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 2000/01
fishing gear associated with seabirds at Bird Island, South Georgia. In this, the eighth year of ... . Quantities of fishing gear remained within the levels of previous years for all other species. Marine debris ... , the vast majority of which was plastics, showed a 28% increase from the maximum of the previous year ... for grey-headed albatrosses, but a 24% decrease from the maximum of the previous year for wandering ...
Meeting Document : SC-CAMLR-XX/BG/07 : Author(s): Delegation of the United Kingdom
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Climate change and precautionary spatial protection: seasonal sea ice
Abstract: Regional climate change is now known to be well established in the Antarctic; however ... , the implications for biological systems remain poorly understood. Investigating how marine species ... little changed by human activities, particularly by the impacts (either direct or indirect) of marine ... harvesting. If CCAMLR is to embrace the wider implications of climate change in the context of ecosystem ...
Meeting Document : WS-MPA-11/18 : Author(s): P.N. Trathan and S.M. Grant (UK)
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Antarctic krill; assessment of mesh size selectivity and escape mortality from trawls
Abstract: This working paper presents the aims and methodology for a three-year-project ... (commenced in 2015) assessing size selectivity and escape mortality of Antarctic krill from trawl nets. The ... . Funding is provided by the Norwegian Research Council and ship-time for executing the field-experiments is ... BioMarine AS. The project will examine krill escape mortality from the codend during a full scale field ...
Meeting Document : WG-EMM-15/14 : Author(s): B.A. Krafft (Norway), L.A. Krag (Denmark), B. Herrmann, A. Engås, I. Bruheim and S. Nordrum (Norway)
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Relationship to non-cooperating non-Contracting Parties
-Contracting Parties undermining the objectives of the Convention, as well as measures to deter such activities ... , as well as encouraging them to become Contracting Parties and Members of the Commission or to ... 6.3.1.1 CCAMLR may wish to ensure that the details of its engagement with third-party States in respect of ... Article X of the Convention are, on a regular basis, formally brought to the attention of FAO and any ...
Page : Site Section: The Organisation
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Technical Specifications of Fish Heaven: version 2.1.5
Abstract: These are the technical specifications of the software Fish Heaven: version 2.1.5. The ... specifications include a description of the object structure of the model, the process structure of the model and ... a mathematical description of the model. Author(s): Ball, I. Title: Technical Specifications of ...
Meeting Document : WG-FSA-SAM-04/15 : Author(s): Ball, I.
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Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity
= 31.6 mm; standard deviation = 6.6 mm), at the Cape Shirreff field station, Livingston Island ... of seawater (0.6??temperature??3.6 °C). Between each pulse, the krill moved within the fixed-boundary ... -tank and the modulated reverberations were sensed bi-statically with three omnidirectional receivers ... . At each center frequency (fc), the coherent energy in 200-pulse ensembles identified sound scattered ...
Meeting Document : WG-EMM-02/49 : Author(s): D.A. Demer and S. G. Conti (USA)
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Characteristics of krill aggregations in 48.4 subdivision during January–February 2000
type in relation to water mass structure and dynamics. The distributional features and physical ... characteristics of some 2400 krill swarms detected and sized acoustically in the study area have been described ... been made an analysis of krill biomass horizontal and vertical distributions in the study area in ... relation to characteristics of the aggregations recorded. The effect of spatial distribution of krill ...
Meeting Document : WG-EMM-01/42 : Author(s): S.M. Kasatkina, A.P. Malyshko, V.N.Shnar and O.A. Berezhinskiy (Russia)
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
Abstract: A model is set up for the operation (which includes both searching and fishing) of a ... whose parameters are determined primarily from the scientific FIBEX surveys. Output from the model of ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ...
Meeting Document : WS-KCPUE-89/04 : Author(s): D.S. Butterworth (South Africa)