Resultados de la búsqueda
-
A two-fleet ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
become available for the years 2004 and 2005. The assessment is also generalised to allow for a second ... of various constant annual catches for the two-fleet model are computed. Although higher sustainable ... annual legal catch not to exceed 500 tonnes for the time being, together with encouragement that this be ... obtained show a much greater selectivity for larger toothfish for the pot than for the longline fishery – a ...
Meeting Document : WG-FSA-05/58 : Autor(es): A. Brandão and D.S. Butterworth (South Africa)
-
SOUTHERN OCEAN SENTINEL: AN INTERNATIONAL PROGRAM TO ASSESS CLIMATE CHANGE IMPACTS ON MARINE ECOSYSTEMS
climate change impacts for use by governments, the Intergovernmental Panel on Climate Change and other ... ecosystem models, was the focus of discussion at an International Workshop on ‘Monitoring climate change ... , Australia, on 20-24 April 2009. It was hosted by the Antarctic Climate and Ecosystems Cooperative Research ... Abstract: Assessment and predictive models need to be developed to provide two assessments of ...
Meeting Document : SC-CAMLR-XXVIII/BG/17 : Autor(es): Delegation of Australia
-
An acoustic survey of Antarctic krill on the South Georgia shelf, CCAMLR Subarea 48.3, in January 1992
. An overall mean for daytime transects was 95 g m-2. Author(s): Everson, I., Goss, C. Title: An ... operating at 38 kHz and 120 kHz. The results have been analysed for all straight sections of track when the ... Georgia. The appearances of echoes on echo charts were used to decide which echoes to include in krill ... backscattering strength at the two frequencies into a) echoes from krill-sized scatterers and smaller and b ...
Meeting Document : WG-EMM-96/42 : Autor(es): Everson, I., Goss, C.
-
TIMING OF CLUTCH INITIATION IN PYGOSCELIS PENGUINS ON THE ANTARCTIC PENINSULA: TOWARDS AN IMPROVED UNDERSTANDING OF OFF-PEAK CENSUS CORRECTION FACTORS
through the breeding cycle. In this paper we present an analysis relating to both of these two challenges ... statistical model for determining the peak of clutch initiation for any given year and site and, along with a ... Abstract: Penguin censuses on the Antarctic Peninsula are often subject to logistical challenges ... Ecosystem Monitoring Program (CEMP) (Scientific Committee for the Conservation of Antarctic Marine Living ...
Meeting Document : WG-EMM-PSW-08/15 : Autor(es): H.J. Lynch, W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece (USA)
-
The effects of an experimental hake Merluccius capensis/paradoxus longline fishery on Procellariiform seabirds in South Africa - a preliminary investigation
the world, concern was raised as to the effect an experimental Hake longline fishery would have on ... responsible for 1928 ± 1345 whitechinned petrel deaths a year in South African waters. Stepwise multiple ... Abstract: Due to the detrimental effect longline fisheries have had on seabirds in other parts of ... Procellariiform seabirds in South Africa. Carcases of Procellariiform seabirds caught on Hake longlines during ...
Meeting Document : WG-FSA-95/21 : Autor(es): Barnes, K.
-
An update on the ageing of Antarctic toothfish, Dissostichus mawsoni, from East Antarctica and the Amundsen Sea
Abstract: This paper presents an update on the ageing of Antarctic toothfish, Dissostichus ... each method. The values of IAPE and CV were acceptable between the two methods of preparation for ... . Ziegler and D. Welsford Title: An update on the ageing of Antarctic toothfish, Dissostichus mawsoni, from ... Zealand reference collection for Antarctic toothfish, with all pairwise comparisons between readers and ...
Meeting Document : WG-FSA-17/15 : Autor(es): G. Nowara, B. Farmer, T. Barnes, P. Ziegler and D. Welsford
-
INTERACTIONS OF PATAGONIAN TOOTHFISH FISHERIES WITH KILLER AND SPERM WHALES IN CROZET EXCLUSIVE ECONOMIC ZONE: AN ASSESSMENT OF DEPREDATION LEVELS AND INSIGHTS ON POSSIBLE MITIGATION SOLUTIONS
study (i) provides estimations of annual depredation levels on a 5-years period (2003-2008), (ii ... will be tested on an experimental campaign which will take place in early 2010. Author(s): P. Tixier ... . From 2003 to 2008, sperm whales alone, killer whales alone, and the two species co-occurring were ... observed on respectively 32.6%, 18.6% and 23.4% of the 4289 lines hauled out over this period. Over this 5 ...
Meeting Document : WG-IMAF-09/12 : Autor(es): P. Tixier, N. Gasco, G. Duhamel and C. Guinet (France)
-
Food and feeding of two Channichthyids, Champsocephalus gunnari and Chaenocephalus aceratus, around Elephant Island and in the South Shetland Islands (Subarea 48.1) in 2001 and 2002
Abstract: Data on food and feeding of two icefish species, Champsocephalus gunnari and ... ‘Polarstern’. C. gunnari fed almost exclusively on krill (Euphausia superba) in both years. C. aceratus fed on ... krill and other crustaceans as well as on fish. C. aceratus smaller than 30 – 35 cm relied primarily on ... krill and other crustaceans while larger fish preyed predominantly on fish. They fed mainly on locally ...
Meeting Document : WG-FSA-02/73 Rev. 1 : Autor(es): H. Flores, K.-H. Kock, S. Wilhelms (Germany) and C.D. Jones (USA)
-
Engaging ‘the crowd’ in citizen science and remote sensing to learn about habitat affinity of two Southern Ocean seals
/absence data for Weddell seals on images from November 2010 and 2011. In a second campaign, we selected ... presence/absence patterns of the Weddell seal (Leptonychotes weddellii), and has recently been adapted for ... crabeater seals (Lobodon carcinophagus) in the Weddell Sea region. Satellites Over Seals provides an ... efficient method to screen large numbers of images (and hence area) for undertaking census counts of Weddell ...
Meeting Document : WG-EMM-2019/37 : Autor(es): M.A. LaRue, D.G. Ainley, J. Pennycook, K. Stamatiou, M. Dozier, J. Saints, L. Sales, N. Nur, S. Stammerjohn and L. Barrington
-
Evidence of two stocks of Champsocephalus gunnari in the South Georgia region, CCAMLR fishing Area 48.3
CCAMLR statistical sub-area. There is an apparent growth of around 0.76% SL d-1 (0.27mm SL d-1) for ... Abstract: In 1991, the 0 age-class of C. gunnari were sampled at Shag Rocks on 18 January, off ... Possession Bay, South Georgia during 19-20 January and off much of the north-east coast of South Georgia ... between to 19 January to 19 February. The size- frequency of fish at Shag Rocks contained two modes of 31 ...
Meeting Document : WG-FSA-94/16 : Autor(es): A.W. North (United Kingdom)