Resultados de la búsqueda
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Further development of a spatially explicit population dynamics operating model for Antarctic toothfish in the Ross Sea region
model for Antarctic toothfish over the entire Ross Sea region, for a medium scale spatial resolution ... (189 spatial cells) covering the Ross Sea region. The model was developed as a generalised Bayesian ... population dynamics model implemented using the Spatial Population Model software (SPM), and a single sex age ... appeared to broadly reflect the hypothesised spatial distribution of Antarctic toothfish, suggesting that ...
Meeting Document : WG-SAM-13/35 : Autor(es): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob & Lena Banks for the years 1989/1990 to 2012/13
eleginoides in research block C in Division 58.4.4 b on the assumption of constant year class strength and no ... IUU fishing occurrence in the block. The five models are as follows: 1) catch at length model as ... parameters were not estimated in these models according to the recommendations in the last WG-FSA meeting. In ... addition, proportion mature for ages was calculated on the assumption of logistic curve fitting for the ...
Meeting Document : WG-SAM-14/15 : Autor(es): K. Taki (Japan)
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ANTARCTIC KRILL DEMOGRAPHY AND POPULATION DYNAMICS WEST OF THE ANTARCTIC PENINSULA IN 2010/11
Abstract: A krill net sampling survey was carried out west of the Antarctic Peninsula in January ... . The survey was a joint German and US effort. While the US AMLR Survey section covered the area between ... Elephant Island and the western entrance of Bransfield Strait, the “Polarstern” survey grid followed back ... , Salpa thompsoni. The results of this survey represent the most complete picture of the spatial ...
Meeting Document : WG-EMM-11/13 : Autor(es): V. Siegel (Germany), C. Reiss (USA), K. Dietrich (USA), M. Haraldsson (Sweden) and G. Rohardt (Germany)
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PROPOSED RESOLUTION ON ILLEGAL, UNREPORTED AND UNREGULATED (IUU) FISHING IN THE CCAMLR CONVENTION AREA
Abstract: PROPOSAL The delegation of New Zealand proposes that the Commission adopts a new ... resolution on IUU fishing in the CCAMLR Convention Area. PURPOSE The proposed resolution seeks a ... reaffirmation by CCAMLR Members of their commitment to prevent, deter and eliminate IUU fishing in the CCAMLR ... action taken by CCAMLR, notably through relevant CCAMLR Conservation Measures addressing the problem of ...
Meeting Document : CCAMLR-XXIX/36 : Autor(es): Delegation of New Zealand
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Preliminary assessment of the South Georgia toothfish stock, 2007
Abstract: 1. The catch-at-length based CASAL model for toothfish at South Georgia is updated with ... data from the 2007 fishing season. The predicted spawning stock biomass and the yield is slightly ... higher than was estimated last year. 2. Improvements are made to the fit of tag data through (a ... estimates of catches at age from 1998 to 2006 (based on random sampling of the catch for age determination ...
Meeting Document : WG-FSA-07/29 : Autor(es): D.J. Agnew, R. Hillary and J. Pearce (United Kingdom)
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Distribution and diet of juvenile Patagonian toothfish on the South Georgia and Shag Rocks shelves (Southern Ocean)
Abstract: The distribution and diet of juvenile (<750 mm) Patagonian toothfish are described ... from 4 annual trawl surveys (2003-06) around the island of South Georgia in the Atlantic sector of the ... the four years surveyed. Most juveniles were caught on the Shag Rocks shelf to the NW of South Georgia ... , with fish subsequently dispersing to deeper water around both the South Georgia and Shag Rocks shelves ...
Meeting Document : WG-FSA-07/P4 : Autor(es): M.A. Collins, K.A. Ross, M. Belchier, K. Reid. (Mar. Biol., 152: 135–147 (2007)).
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Distribution of albatrosses and petrels in the WCPFC Convention Area and overlap with WCPFC longline fishing effort
Abstract: This paper presents an analysis of the distribution of albatrosses and petrels in the ... area under the jurisdiction of the Western and Central Pacific Fisheries Commission (WCPFC), using data ... from the BirdLife Global Procellariiform Tracking Database. • The WCPFC area includes 41% of the global ... significant proportion (>40%) of their time in high seas areas. Key high seas areas include the Tasman Sea ...
Meeting Document : WG-FSA-06/19 : Autor(es): C. Small (BirdLife International)
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Developing a carbon-budget trophic model of the Ross Sea, Antarctica: work in progress
Abstract: We report on the development of a carbon-budget trophic-model of the Ross Sea. We ... provisionally defined the food web of the Ross Sea as having the following functional compartments: birds, seals ... column, ice, and benthic). The simple trophic model requires well over a hundred parameters, each of ... organisms in the Ross Sea was used whenever available. Where no information in the literature was available ...
Meeting Document : WG-EMM-05/18 : Autor(es): M. Pinkerton, S. Hanchet, J. Bradford-Grieve and P. Wilson (New Zealand)
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... at King George Island for the fourth consecutive year. There are now 4 sites that have data for more ... Islands). Marine debris, principally packaging items, fishing gear, and wood items, reached a peak in the ...
Meeting Document : SC-CAMLR-XXIII/BG/11 : Autor(es): Secretariat
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Summary of the seabird and marine mammal observations during observed toothfish (Dissostichus spp.) longline fishing operations in CCAMLR Subareas 88.1 and 88.2
operations that targeted toothfish (Dissostichus spp.) in 2001–03 in Sub-areas 88.1 and 88.2. The ... distribution of fishing effort was dictated by the presence of sea ice and there are differences in the seabird ... composition reported each year because of variation in the spatial distribution of the seabirds. At-sea ... identification of some species is difficult and some of the species that were reported from outside their known ...
Meeting Document : WG-FSA-04/42 : Autor(es): S.J. Baird (New Zealand)