Resultados de la búsqueda
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Approaches to evaluating and testing of CEMP methods for parameters A1, A5 and A7
description of foraging trip duration using the mean arising from a bimodal distribution of trip durations may ... Abstract: The methods and presentation of CEMP parameters A1, A5 and A7 where evaluated using ... simulated time-series data. The effects of sampling timing and intensity during five-day periods for ... around the peak arrival/fledging date may introduce substantial bias in CEMP parameters A1and A7. The ...
Meeting Document : WG-EMM-04/60 : Autor(es): G. Watters (USA) and K. Reid (United Kingdom)
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Spawning activity of mackerel icefish at South Georgia
intensity almost certainly occurs over much of the shelf although the intensity appears to be small in ... Abstract: Historical information is assessed on the distribution of spawning and larval mackerel ... April within and close to the bays on the north side of the island. Some spawning at much lower ... comparison with inshore spawning. There is some evidence for spawning at Shag Rocks although the precise ...
Meeting Document : WG-FSA-00/27 : Autor(es): I . Everson, A. North (United Kingdom) and K.-H. Kock (Germany)
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SPATIAL PROTECTION AND MANAGEMENT OF ANTARCTIC MARINE BIODIVERSITY
April 2009). It provides information on the different objectives and types of marine spatial protection ... and management that can be implemented in Antarctic waters, including details on the tools currently ... establishment of effective, representative and coherent spatial protection of marine biodiversity, using the ... full range of tools available under CCAMLR and the ATCM. Cooperate as far as possible with the CEP to ...
Meeting Document : WG-EMM-09/09 : Autor(es): S. Grant (United Kingdom)
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Electronic monitoring of seabird interactions with trawl third-wire cables on trawl vessels – a pilot study
one-month period in the fall of 2002. Detailed analysis of about 200 hours of fishing imagery occurred ... delivery and head and gut bottom trawl vessels conducting operations in the Bering Sea, U.S. Exclusive ... cables. The EM system provided imagery of sufficient quality to detect the presence, abundance, and ... to detect third-wire entanglements of seabirds although it was not possible to determine the cause of ...
Meeting Document : WG-FSA-04/23 : Autor(es): H. McElderry, J. Schrader, D. McCullough, J. Illingworth, S. Fitzgerald and S. Davis (USA)
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Electronic monitoring of seabird interactions with trawl third-wire cables on trawl vessels – a pilot study
one-month period in the fall of 2002. Detailed analysis of about 200 hours of fishing imagery occurred ... delivery and head and gut bottom trawl vessels conducting operations in the Bering Sea, U.S. Exclusive ... cables. The EM system provided imagery of sufficient quality to detect the presence, abundance, and ... to detect third-wire entanglements of seabirds although it was not possible to determine the cause of ...
Meeting Document : WG-FSA-04/23text : Autor(es): H. McElderry, J. Schrader, D. McCullough, J. Illingworth, S. Fitzgerald and S. Davis (USA)
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Modelling growth of Antarctic krill: growth trends with sex, length, season, and region
this model was used to predict seasonal IMP using a model of the average sea-surface temperature ... small to negative values of IGR predominating across all size classes by autumn. The period of rapid ... growth was December in Indian sector, whereas in the Scotia Sea sector it appeared to be a few months ... Abstract: Growth trends of Antarctic krill with sex, length, season and region using over 10 ...
Meeting Document : WG-EMM-05/29 : Autor(es): S. Kawaguchi, S. Candy, R. King (Australia), M. Naganobu (Japan) and S. Nicol (Australia)
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Estimating abundance of Antarctic fur seals at South Georgia
Abstract: This paper presents a description of the statistical approach developed to estimate ... abundance of Antarctic fur seals at South Georgia. The estimate is based on photographic counts of all the ... breeding beaches in the fur seal’s distribution range. The images were obtained during comprehensive ... helicopter surveys conducted during 2006 and 2008. The proposed Bayesian analysis scales up in situ counts to ...
Meeting Document : WG-EMM-14/09 : Autor(es): J. Forcada, I.J. Staniland, A.R. Martin, A.G. Wood and P.N. Trathan (United Kingdom)
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Measurements of fish school velocities with an acoustic Doppler current profiler
), it was required that the four ADCP beams simultaneously insonified a fish school, in the same depth ... estimates and ensemble averaged to determine the average speeds and directions of fish aggregations. The ... results suggests that the ADCP can be a useful tool for observing fish behavior in certain situations ... . Some applications may include the quantification of horizontal and vertical migration patterns of large ...
Meeting Document : WG-EMM-96/41 : Autor(es): Demer, D.A.
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On possible impact of new continuous krill fishing technology on juvenile fish and larvae
fishing technology may result in considerable by-catch of the juvenile fish and larvae in krill fishery ... powerful pumping system for continuous pumping the catch out of the trawl bag. It was discussed the ... Abstract: The new continuous krill fishing system uses both a small-meshed midwater trawl and a ... potential threats of new technology to Antarctic marine ecosystem. It was shown that application of this ...
Meeting Document : WG-FSA-06/23 : Autor(es): S.M. Kasatkina
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Synopsis of CEMP and non-CEMP predator parameters from Admiralty Bay and Cape Shirreff, South Shetland Islands, Antarctica: their relationships to krill abundance and ice cover, 1978–2003
. Results of the analyses are presented in a series of 6 Tables, following the outline of a Draft paper by ... , South Shetland Islands, Antarctica were analysed to assess the characteristics of the individual ... K.Reid for similar analyses at South Georgia. The tabular data include: 1. Table 1. A list of the penguin ... performance indices collected at the two sites 2. Table 2. Data on annual variability in krill biomass density ...
Meeting Document : WG-EMM-03/61 : Autor(es): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)