Resultados de la búsqueda
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2016 random stratified trawl survey
Abstract: The annual Random Stratified Trawl Survey was undertaken in Division 58.5.2 in the ... icefish population structure, abundance and yield for the area of Division 58.5.2 to the west of 79 o 20 ... the population. These projections indicate that catches of 561 t in the 2016/17 season and 402 t in ... the 2017/18 season satisfy the CCAMLR decision rules. Author(s): D. Maschette and D. Welsford Title ...
Meeting Document : WG-FSA-16/26 : Autor(es): D. Maschette and D. Welsford
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Updated assessment of the risks of status quo krill fishing and proposed revisions to Conservation Measure 51-07
Abstract: We used an ecosystem model to assess the risks of 1) the most recent distribution of ... krill catches in Subareas 48.1-48.3 and 2) current proposals to increase the catch limit in Subarea 48.1 ... . Our results show that the concentration of fishing effort since 2009 increases the risks that predator ... exacerbated by increased catches in Subarea 48.1. We briefly discuss the implications of our results and ...
Meeting Document : SC-CAMLR-XXXV/BG/36 : Autor(es): Delegation of the USA
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Revision of the CCAMLR Scientific Observers Manual
Abstract: This document summarises the suggestions made by WG-EMM to address the requests made by ... the Scientific Committee in relation to Scientific Observer Manual. These are establishment and ... of krill fishery, and other minor revisions on the e-forms. This document also contains examples of ... the revisions made to the forms and is presented to the Working Group on Fish Stock Assessment for ...
Meeting Document : WG-FSA-07/54 : Autor(es): S. Kawaguchi (Australia) and E. Appleyard (CCAMLR Secretariat)
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Developing conceptual models of elements of the Antarctic marine ecosystem: Antarctic krill (Euphausia superba)
based on observations and data from the literature. The model attempts to take into account the observed ... as an evolved product of interactions between the species and its environment. In particular, the ... model focuses on the different forces that act on the larval and adult stages. Author(s): S. Nicol and ... S. Kawaguchi (Australia) Title: Developing conceptual models of elements of the Antarctic marine ...
Meeting Document : WG-EMM-04/50 : Autor(es): S. Nicol and S. Kawaguchi (Australia)
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Diet of grey-headed albatrosses at the Diego Ramírez Islands, Chile: ecological implications
Abstract: The diet of grey-headed albatrosses at Diego Ramírez, Chile, was analyzed and compared ... to that of the sympatric black-browed albatross. Diet composition was inferred from an analysis of ... . The squid Martialia hyadesi predominated in the diet samples in 2001 and 2002 (89% and 81% of ... reconstituted mass), but was absent from the 2000 samples. Reconstituted mean mass per sample in 2000 was ...
Meeting Document : WG-FSA-04/12 : Autor(es): J. Arata (Chile), G. Robertson (Australia), J. Valencia (Chile), J.C. Xavier (UK) and C.A. Moreno (Chile)
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Interannual variability of krill, salp and other zooplankton populations in the South Shetland Island area during Austral summer 1993–1998
Abstract: The summer 1998 AMLR field season followed late-forming but spatially extensive winter ... sea ice in the Antarctic Peninsula region. Overall krill length/maturity composition reflected poor ... recruitment from the past two years. Unusually small juvenile krill in 1998 suggested that survival success ... during the 1993 "salp year". The magnitude of this salp bloom may have resulted from a large ...
Meeting Document : WG-EMM-98/50 : Autor(es): V. Loeb, W. Armstrong, R. Hewitt (USA) and V. Siegel (Germany)
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USING GENETIC CONNECTIVITY TO IDENTIFY VULNERABLE MARINE ECOSYSTEMS (VMES) IN ANTARCTICA – THE ISSUE OF SCALE
is valuable for understanding the potential resilience of benthic communities under threat from ... bottom fishing. Genetic connectivity allows insight into the realized dispersal of organisms, i.e. the ... likelihood of new recruits arriving from surrounding areas. Despite the wide distribution patterns shown by ... isolated island regions e.g. South Georgia, the South Orkneys, Bouvet Island. The exception to this was the ...
Meeting Document : WS-VME-09/06 : Autor(es): Wilson, N.G.
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PROPOSED CHANGES TO THE SCIENTIFIC OBSERVERS MANUAL
Abstract: The Secretariat has made changes to the Observers Manual to reflect the current advice ... from the Scientific Committee and its Working Groups. These changes are presented as an annotated Table ... of Contents, with a full track-change version of the Manual provided as an appendix. Two additional ... sections are included at the end of this document which require endorsement from the Working Group. These ...
Meeting Document : TASO-09/04 : Autor(es): Secretariat
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The population of Mirounga leonina at stranger point (25 de Mayo – King George I.)
Abstract: This paper includes information on the trend of the elephant seal population at ... Stranger Point (25 de Mayo-King george I.) between 1980-87(excluding 1981). A decline in the population was ... observed in 1980-82 and 1987. The female component was mainly affected in 1 980-82 (r=-0.568) while the ... (ENSO) events upon the numerical changes in the studied population is postulated. Author(s): Delegation ...
Meeting Document : SC-CAMLR-VII/BG/33 : Autor(es): Delegation of Argentina
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Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii from South Georgia
Abstract: Foremost in the elucidation of accurate population dynamics parameters in fish is a ... used annual rhythmic deposition in calcified tissues as time marks but, due ts the lack of distinct ... difficult. It is now possible to determine the age of fish through the utilization of daily increments in ... dynamics, investigations were performed on otoliths from the Antarctic fish Champsocephalus gunnari and ...
Meeting Document : SC-CAMLR-VI/BG/43 : Autor(es): R. Radtke (USA)