Resultados de la búsqueda
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Habitat partitioning in Antarctic krill: spawning hotspots and nursery areas
fishery. Within this sector, our first goal was to produce quantitative distribution maps of all six ... ontogenetic life stages of krill (eggs, nauplii plus metanauplii, calyptopes, furcilia, juveniles, and adults ... ), based on a compilation of all available post 1970s data. Using these maps, we then examined firstly ... whether “hotspots” of egg production and early stage nursery occurred, and secondly whether the available ...
Meeting Document : WG-EMM-2019/20 : Autor(es): F. Perry, A. Atkinson, S.F. Sailley, G.A. Tarling, S.L. Hill, C.H. Lucas and D.J. Mayor
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Chilean NPOA-Seabirds: first steps
Abstract: The progresses in the developing of the Chilean NPOA-S are described. At the moment, an ... Executive and a Technical Group have been constituted. First steps taken had been the selection of ... mitigation measures to be applied; the design of experiments to test specific combinations of mitigation ... measures, and the discussion of the Objectives and Goals of the NPOA-S. The final draft of the NPOA-S will ...
Meeting Document : WG-FSA-04/14 : Autor(es): C.A. Moreno and J. Arata (Chile)
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Conserving pattern and process in the Southern Ocean: designing a Marine Protected Area for the Prince Edward Islands
Economic Zone (EEZ) of its sub-Antarctic Prince Edward Islands. The objectives of the MPA are to: 1 ... ) contribute to a national and global representative system of MPAs, 2) serve as a scientific reference point ... to inform future management, 3) contribute to the recovery of the Patagonian toothfish (Dissostichus ... eleginoides), and 4) reduce the bird bycatch of the toothfish fishery, particularly of albatrosses and petrels ...
Meeting Document : WS-BSO-07/P1 : Autor(es): Lombard, A.T., B. Reyers, L.Y. Schonegevel, J. Cooper, L.B. Smith-Adao, D.C. Nel, P.W. Froneman, I.J. Ansorge, M.N. Bester, C.A. Tosh, T. Strauss, T. Akkers, O. Gon, R.W. Leslie and S.L. Chown
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VARIATION IN DEMERSAL FISH SPECIES RICHNESS IN THE OCEANS SURROUNDING NEW ZEALAND: AN ANALYSIS USING BOOSTED REGRESSION TREES
characteristics using an extensive collection of trawl data from the oceans around New Zealand. Analyses were ... ‘stochastic gradient boosting’). Depth was the single most important environmental predictor of variation in ... species richness, with highest richness occurring at depths of 900 to 1000 m, and with a broad plateau of ... concentrations of chlorophyll a and in zones of mixing of water bodies of contrasting origins. Local variation in ...
Meeting Document : WS-VME-09/P04 : Autor(es): Leathwick, J.R., Elith, J., Taylor, P., Francis, M.P., Hastie, T.
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Hydrographic conditions in the Elephant Island plateau region during December 1996
collected by German research vessels in this region. By means of a new interactive software water mass ... boundaries are outlined which reveal the approximate location of the Weddell-Scotia Confluence. Vertical ... distribution of oceanographic parameters temperature, salinity and density is discussed. Geopotential anomaly ... charts, referenced to 0/300 dbar reveal the general flow as given by the geostrophic part of the ...
Meeting Document : WG-EMM-97/06 : Autor(es): Stein, M.
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Beach litter survey Signy Island, South Orkney Islands, 1992/93
their origin noted. At Foca Cove, a total of 23 items were recovered with a combined weight of 4.45 kg ... . At Cummings Cove, a total of 42 items were recovered (9.10 kg). No debris was found at Starfish Cove ... . Comparison with the 1990/91 and 1991/92 litter surveys showed a dramatic drop in both the weight of debris ... and the total number of items recovered. For example, at Foca Cove, the total weight of debris ...
Meeting Document : CCAMLR-XII/BG/07 : Autor(es): Delegation of United Kingdom
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Inter-annual variability in krill density at South Georgia: 1997–2012
, maintaining very large numbers of predators, and fluctuations in their abundance can affect the overall ... structure and functioning of the ecosystems. The inter-annual variability in the abundance and biomass of ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... Box (WCB) survey area to the north of South Georgia, Southern Ocean. Krill targets were identified in ...
Meeting Document : WG-EMM-13/14 : Autor(es): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
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Diet components and trophic interactions in five demersal fish in CCAMLR Subarea 48.3
Abstract: Diet components and trophic interactions in five demersal fish caught around of South ... Georgia’s waters was determined. Data were obtained from samples of Champsocephalus gunnari, Chaenocephalus ... carried out during the month of May 2013, on board of RV DY Eduardo L. Holmberg (INIDEP), at depths from ... 74 to 240 m. Prey Specific Index of Importance (%PSIRI) by each prey in each predator and, trophic ...
Meeting Document : WG-FSA-13/60 : Autor(es): N.R. Marí and G.H. Troccoli (Argentina)
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Soft-sediment macrozoobenthos from Domain 1 (Antarctica): A preliminary report using community parameters and proxies
Abstract: The present scientific report presents the analysis of a database compilation in order ... carbon (TOC) present on the seafloor of Domain 1. The soft sediment macrobenthic communities were ... analyzed from different approaches. We describe the macrobenthos by means of traditional parameters such as ... abundance and biomass. The biodiversity of two selected and taxonomical well-studied taxa (Polychaeta and ...
Meeting Document : SC-CAMLR-XXXVI/BG/10 : Autor(es): Delegation of Chile
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Revised growth and length-weight parameters for Antarctic toothfish in the Ross Sea region (881 & 882AB)
Abstract: We update the estimates of the growth and length-weight parameters for Antarctic ... estimates of the von Bertalanffy growth curves, estimates of mean length at age using maximum likelihood ... fishing operations in the Ross Sea region. Estimates of growth and length-weight were similar to those ... previously used, however there was some suggestion that the shape of the growth curve may be better ...
Meeting Document : WG-FSA-2019/11 : Autor(es): A. Dunn and S. Parker