Resultados de la búsqueda
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Relationships between distribution of two euphausiid species and oceanographic characteristics in the Ross Sea (January–February 2000)
the Ross Sea area. Activities included acoustic, fishery and physical measurements. More than 2370 ... nautical miles were acoustically sampled to determine the euphausiid biomass; during the echosurvey, every ... between the two species. Euphausia superba and Euphausia crystallorophias swarms were recognized, and ... average length estimated, by means of the three-frequency method, based on the fluid sphere model. Net ...
Meeting Document : WG-EMM-02/38 : Autor(es): A. Russo, M. Azzali, E. Biffi, G. Lanciani and E. Paschine (Italy)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1998 winter and 1998/99 pup-rearing season
Abstract: Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... Georgia for the ninth consecutive winter (1998) and eleventh consecutive summer (1998/99) are reported ... here. The number of seals observed entangled in the winter (13) represented an 86 % increase on the ... 1997 winter total and an 87 % decrease on the highest previous total (1992). The proportion of animals ...
Meeting Document : SC-CAMLR-XVIII/BG/05 : Autor(es): Delegation of the United Kingdom
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Horizontal and vertical distribution and demography of euphausiids in the Ross Sea and its adjacent waters in 2004/2005
Abstract: The horizontal and vertical distribution and population structure of euphausiids in the ... Ross Sea and its adjacent waters were investigated during the summers of 2004/2005 using stratified ... towed samples. Nine species of euphausiids occurred in the survey area. Among them, Euphausia triacantha ... was dominant in biomass north of the southern boundary of the Antarctic circumpolar current (SB ...
Meeting Document : WG-EMM-08/P10 : Autor(es): K. Taki, T. Yabuki, Y. Noiri, T. Hayashi and M. Naganobu
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ESTIMATING THE SWEPT AREA OF DEMERSAL LONGLINES BASED ON IN-SITU VIDEO FOOTAGE
video camera recorded the interactions between the main line and the benthos during setting and hauling ... . Footage revealed that after setting the line moved very little, despite cross currents. During hauling ... , the section of line visible to the camera swept sideways, interacting with sessile benthic organisms ... before leaving the seafloor. Based on an estimate of the rate of sideways movement, the total time ...
Meeting Document : WG-FSA-08/58 : Autor(es): D. Welsford and R. Kilpatrick (Australia)
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Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach
Abstract: In anticipation of the development of a new fishery for the oceanic squid Martialia ... hyadesi in the Scotia Sea a revision is presented of annual consumption of the species by higher predators ... and a brief review is provided of information about the life cycle and distribution obtained from ... research fishing and commercial catches. The species is consumed by seabirds, seals and whales and the most ...
Meeting Document : WG-FSA-96/20 : Autor(es): Rodhouse, P.G.
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Recommendations on estimating krill escape mortality during fishing operations: the problems and approaches
Abstract: The task to estimate the escape mortality of krill during the fishing operation ... assigned by Scientific Committee requires assessment of the total krill passed through the rope and netting ... parts of trawl and krill amount appeared unviable in the process of escapement. The recommendations ... presented are the first attempt to develop the method of instrumental assessment of the «escape mortality ...
Meeting Document : WG-SAM-10/06 : Autor(es): V.K. Korotkov and S.M. Kasatkina (Russia)
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Developing research on Antarctic krill to facilitate the development and updating of feedback management procedures
Abstract: Antarctic krill fisheries have the potential to be in the top 10 fisheries of the world ... in terms of biomass production. The expansion of the fishery from current levels appears inevitable ... given the demand for protein and the efficiencies now being developed in the fishery. CCAMLR is ... approach requires an appropriate level of understanding of (i) the structure, function and change of the ...
Meeting Document : WG-EMM-13/12 : Autor(es): E.J. Murphy, R.D. Cavanagh (United Kingdom), A. Constable (Australia), E.H. Hofmann (USA), S.L. Hill, N.M. Johnston, P.N. Trathan and J.L. Watkins (United Kingdom)
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Sea ice characterisation of the proposed Ross Sea region Marine Protected Area Special Research Zone
Abstract: Paper CAMLR-XXXIV/29 proposes an MPA for the Ross Sea region that includes a Special ... ice within and surrounding the boundaries of the proposed SRZ over the past 16 years, the impact it ... has had on the fishery in the area during that time, and potential influences sea ice might impose on ... achieving the objectives of the proposed SRZ in the future. Based on historic satellite-derived sea ice ...
Meeting Document : SC-CAMLR-XXXIV/BG/31 : Autor(es): S. Parker, S. Hoyle, S. Hanchet and R.J.C. Currey (New Zealand)
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On biogeographic patterns of benthic invertebrate mega fauna on shelf areas of the Southern Ocean Atlantic sector
Abstract: The ideal approach to bioregionalisation of Antarctic and Southern Ocean shelf ... communities incorporates a range of data on physical, environmental and biological properties, as well as the ... the Atlantic sector of the Southern Ocean were analysed quantitatively from scientific survey trawl ... scale, with an ultimate aim of determining broad patterns of distribution. The region for which the ...
Meeting Document : WS-BSO-07/10 : Autor(es): S.J. Lockhart and C.D. Jones (USA)
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Modelling the impact of krill fishing on seal and penguin colonies
Abstract: A key area of concern highlighted by the Scientific Committee of the Commission for the ... Conservation of Antarctic Marine Living Resources (CCAMLR) concerns the potential overlap of the krill fishery ... with the foraging area of land-based predators such as seals and penguins in the Antarctic Peninsula ... region. The dynamics of krill in this region are strongly influenced by advective processes. A key ...
Meeting Document : WG-EMM-05/14 : Autor(es): É.E. Plagányi and D.S. Butterworth (South Africa)