Resultados de la búsqueda
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THE WHITE-CHINNED PETREL (PROCELLARIA AEQUINOCTIALIS) ON SOUTH GEORGIA: POPULATION SIZE, DISTRIBUTION AND GLOBAL SIGNIFICANCE
fisheries than probably any other seabird in the world, but the population impact of this mortality is ... poorly understood, partly because there have been no estimates of the species’ abundance in recent ... decades. The largest breeding aggregation, comprising the majority of the worldwide total, is believed to ... be on the sub-Antarctic island of South Georgia. We estimated the size of this population by ...
Meeting Document : WG-EMM-PSW-08/05 : Autor(es): A.R. Martin, S. Poncet, C. Barbraud, P. Fretwell and E. Foster (United Kingdom)
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Selecting sampling frequency for measuring diving behaviour
Abstract: The use of time-depth recorders has revolutionised knowledge of diving activity of ... marine animals to the point where very detailed studies of variation in diving behaviour and performance ... effects detection of dives and statistics of diving behaviour is investigated, using data from Antarctic ... fur seals and southern elephant seals representative of the extremes of diving in pinnipeds. For both ...
Meeting Document : WG-CEMP-93/14 : Autor(es): I.L. Boyd (United Kingdom)
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Predation on fish by the southern elephant seal, Mirounga leonina, at King George Island, South Shetland Islands, as reflected by stomach lavage
remains. The aim of the present paper was to report data on fish prey obtained from seal stomachs ... Abstract: Between november and february of the years 1993/94, 1995/96, 1996/97, 1997/98, 1998/99 ... and 1999/2000, one hundred and fifty three specimens of southern elephant seals, Mirounga leonina ... were cephalopods and fish which ocurred respectively in 98,1% and 14% of stomachs containing prey ...
Meeting Document : WG-EMM-01/58 : Autor(es): G.A. Daneri and A.R. Carlini (Argentina)
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A suggested bottom trawling survey on the Ob and Lena Banks
Abstract: The paper presents calculations of water flow velocity through the codend under the ... ratios of cod end length to its diameter, mesh bar length to mesh bar diameter, and for various mesh ... opening coefficients. The results obtained were analysed with regard to the impact of flow velocity on ... impact on selection properties. The greater velocity of water outflow is effecting the wider opening of ...
Meeting Document : WG-FSA-93/10 : Autor(es): W. Moderhak (Poland)
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Área marina protegida de la región del mar de Ross: cambios resultantes en otras Medidas de Conservación
the proposed changes in part 1 of this paper, with an explanation of each revision. Part 2 of this ... paper contains copies of all of the relevant CMs with changes edit-tracked, taken from the Schedule of ... in October 2016, it was noted that the implementation of Conservation Measure (CM) 91-05 would ... require revisions to a number of existing CMs (see paragraph 8.39 of the report of CCAMLR XXXV). CM 91-05 ...
Meeting Document : CCAMLR-XXXVI/16 : Autor(es): Delegations of New Zealand and the USA
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Note sur l'étude d'évaluation de l'impact des pêcheries sur les populations de pétrels à menton blanc Procellaria aequinoctialis et de pétrels gris Procellaria cinerea aux îles Crozet et Kerguelen
Abstract: This study reviews the impact of longline fishing on populations of white-chinned ... shows that the population of white-chinned petrels at Possession Island (Crozet) decreased sharply ... decrease in the population was more marked as a result of previous levels of incidental mortality. At ... present, the level of mortality of white-chinned petrels in Subarea 58.6 has not reached the critical ...
Meeting Document : SC-CAMLR-XXVI/BG/22 : Autor(es): Délégation française
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Beach debris survey Signy Island, South Orkney Islands, 1998/99
categories. A total of 83 items weighing 12.96 kg was collected. The number of items recovered was the ... highest since 1996/97 and showed an increase of 86% compared to the previous year. The total mass of items ... recovered was more than double the mass of items in 1997/98. Classifying the material by source revealed ... that 40% had come from ships or fishing vessels in the form of packaging bands, fishing net and foam ...
Meeting Document : CCAMLR-XVIII/BG/7 : Autor(es): Delegation of the United Kingdom
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MULTIPLE INDICATORS SUGGEST A STRONG ECOSYSTEM ANOMALY AT SOUTH GEORGIA IN 2009
local oceanographic and atmospheric conditions. Much of the observed variability in various fitness ... metrics for birds, seals and fish seems to be connected with the availability of Antarctic krill ... marine ecosystem at South Georgia is the focus of a major research effort and consequently there are many ... sources of data available indicating its state. These include remotely-sensed satellite data, fishery data ...
Meeting Document : WG-EMM-09/23 : Autor(es): S. Hill, M. Belchier, M. Collins, S. Fielding, E. Murphy, P. Trathan, H. Venables and C. Waluda (United Kingdom)
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RESEARCH PLAN FOR TOOTHFISH IN DIVISION 58.4.4a & b BY SHINSEI MARU NO. 3 IN 2009/10
Abstract: In order to clarify stock status and biological characteristics of Dissostichus spp. in ... Division 58.4.4 a & b, a total of 124 research hauls are allocated on 10-minute latitude x 20-minute ... longitude grid points (spaced approximately 10 nautical miles apart). Almost all of the research hauls are ... shallow points of < 500 m in SSRU A in order to avoid catching small fishes. A Trot line system will be ...
Meeting Document : WG-SAM-09/11 : Autor(es): Delegation of Japan
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A proposal for a CCAMLR vessel monitoring system
Abstract: A draft configuration of the CCAMLR Vessel Monitoring System (VMS) was prepared using ... available expertise in the design and implementation of satellite-based vessel monitoring of several CCAMLR ... Members and of the Forum Fisheries Agency. Technical consultation on VMS development, set-up and operation ... , available onboard equipment and its use, and transmission and processing of position reports was provided by ...
Meeting Document : CCAMLR-XIV/14 : Autor(es): Secretariat