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1. The effects of global climate variability in pup production of Antarctic fur seals

   -induced changes in the abundance of species in lower trophic levels can cascade up to apex predators by ... depressing vital rates. However, the characteristics and predictability of predator demographic responses ... remain largely unexplored. We investigated the delectability, limits, and nonlinearity of changes in ... autocorrelation created by global climate perturbations; these were identified in time series of monthly averaged ...

   Meeting Document : WG-EMM-06/P2 : Author(s): J. Forcada, P.N. Trathan, K. Reid and E.J. Murphy (United Kingdom)

2. A review of methodologies aimed at avoiding and/or mitigating incidental catch of protected seabirds.

   fisheries interactions have been released in a variety of local, national and international media. Recent ... published reviews in the field of bycatch mitigation have typically had a species or fishing method focus ... . This report presents the results of the seabird component of a global review of mitigation methods ... aimed at reducing mortalities of protected seabirds, marine mammals and reptiles and corals due to ...

   Meeting Document : WG-FSA-05/P8 : Author(s): Bull, L.

3. Post-fledging and winter migration of Adélie penguins (Pygoscelis adeliae) in the Mawson region of east Antarctica

   were satellite-tracked using the Argos system during the winters of 1995-97 and 1998 respectively. Six ... tracked for 32 days. All fledglings travelled northward initially, then westward along the edge of the ... fast-ice or in the pack-ice. Fledglings had travelled between 536 and 1931 km to the west of their ... October 1998, following completion of their annual moult at Bechérvaise Island. Instruments were factory ...

   Meeting Document : WG-EMM-02/47 : Author(s): J. Clarke and K. Kerry (Australia), C. Fowler (USA), R. Lawless, S. Eberhard and R. Murphy (Australia)

4. Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1

   Abstract:  Progressing from Stage 1 to Stage 2 of a feedback management strategy requires a better ... understanding of spatial overlap between predators and fishing activity. We provide estimates of the spatial ... in Subarea 48.1. In general, overlap of summer and winter foraging habitats with krill catches in ... might affect the distribution of fishing effort.  A comparison of CEMP parameters from two years with ...

   Meeting Document : WG-EMM-14/36 : Author(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)

5. DISTRIBUTION OF KRILL AT THRESHOLD DENSITIES SUITABLE FOR FISHING IN THE ATLANTIC SECTOR: ANALYSIS OF THE 2000 SYNOPTIC SURVEY DATA

   shelf SSMUs in terms of the frequency of 1nm integration units with krill densities above and below a ... range of threshold values. 2. In general pelagic SSMUs had markedly lower frequencies of fishable ... smaller for higher thresholds. 4. The contrasting probability of encountering fishable concentrations in ... viable in pelagic SSMUs. This is despite the fact that the absolute abundance of both krill and fishable ...

   Meeting Document : WG-EMM-08/16 : Author(s): S. Hill and D. Agnew (United Kingdom)

6. Estimation of size at maturity and calculation of an appropriate size limit for male Paralomis formosa

   Abstract:  A number of weighted smoothing splines were fit to data on carapace length and size ... -specific, median chela height of Paralomis formosa. The second derivative of the spline which made the best ... tradeoff between goodness of fit and smoothness was used as an estimate morphometric size at maturity ... . Bootstrapping techniques provided a bias-corrected estimate of morphometric size at maturity (sBc) equal to 80 ...

   Meeting Document : WG-FSA-96/35 : Author(s): Watters, G.

7. Pairwise tag performance: testing the sensitivity of the tag detection index and the mortality of tagged fish index

   Abstract:  Vessel-specific indices of tag detection rates and tagging mortality rates were ... temporal variability of fishing operations by pairing each individual tag release or recapture event with ... and in the same fishing season). The method showed that when the confounding effects of variable ... with respect to the tag detection index in the Ross Sea region. Here we present the results of ...

   Meeting Document : WG-FSA-13/50 : Author(s): S. Mormede (New Zealand)

8. Estimation of the incidental capture of seabird species in commercial fisheries in New Zealand waters, 2001/02

   Abstract:  Ministry of Fisheries observers reported 851 seabird captures from observed fishing ... operations (93% dead). Observers recorded another 104 seabirds from unobserved parts of ling longline hauls ... . Observed squid (Nototodarus spp.) and hoki (Macruronus novaezelandiae) trawl fisheries accounted for 87% of ... (numbers of seabirds per observed fishing operation) in 2001–02, with seabirds reported caught from 26% of ...

   Meeting Document : WG-FSA-04/56 : Author(s): S.J. Baird (New Zealand)

9. A bioenergetics model assessment of the prey consumption of Adélie penguins in Subarea 48.1 and 48.2

   Abstract:  We present a preliminary analysis to estimate the consumption of prey by Adélie ... breeding. We parameterised our analysis using data from the population of Adélie penguins breeding at Signy ... Island, South Orkneys. We show that the highest levels of consumption occur during the crèche and pre ... -moult period, consistent with similar studies of Adélie penguins breeding in East Antarctica. On the ...

   Meeting Document : WG-EMM-17/32 : Author(s): C. M. Waluda, L. Emmerson, C. Southwell and P.N. Trathan

10. Identification of marine Important Bird and Biodiversity Areas for penguins in South Shetland and South Orkney Islands: a comparison of two different approaches

    Abstract:  • We provide a method of analysing penguin tracking data to identify marine IBAs, based ... on pre-existing approaches but revised according to the specific ecology of Pygoscelis penguin ... , and 2) revision of parameters for the kernel analysis (the smoothing factor and the utilization ... distribution); • We applied the revised method to 24 datasets of tracking data (three species, seven colonies ...

    Meeting Document : WG-EMM-17/35 : Author(s): M.P. Dias, A.P.B. Carneiro, V. Warwick-Evans, C. Harris, K. Lorenz, P. Trathan

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