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1. An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)

   estimated by incorporating a Petersen approach in a novel semi-parametric model using maximum likelihood ... released fish is assigned a length of time in the available population according to its estimated release ... abundance remaining in Aurora Trough was about 35% in the base-case model. In general, the selectivity model ... substantial decline in available abundance predicted by both models provides some evidence of large-scale ...

   Meeting Document : WG-FSA-00/43 : Autor(es): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)

2. PREDICTING SPECIES DISTRIBUTIONS FROM MUSEUM AND HERBARIUM RECORDS USING MULTI-RESPONSE MODELS FITTED WITH MULTIVARIATE ADAPTIVE REGRESSION SPLINES

   methods for using these data. Such methods must, in particular, accommodate the difficulties caused by ... models (GAMs) that are commonly and successfully used in modelling species distributions, but has ... particular advantages in its analytical speed and the ease of transfer of analysis results to other ... dominant environmental drivers of variation in species composition. We use data from 226 species from six ...

   Meeting Document : WS-VME-09/P02 : Autor(es): Elith, J., Leathwick, J.

3. Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories

   Abstract:  1. This study examined the costs of reproduction in terms of future survival and ... reproduction in female Antarctic fur seals from Bird Island, South Georgia. It used mark-recapture data from 11 ... . 2. Population age structures were used, in conjuction with the measured age-specific survival rates ... result of pregnancy which accounted for 40–50% of adult female mortality. This effect was greatest in the ...

   Meeting Document : WG-EMM-95/26 : Autor(es): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.

4. Developing a Ross Sea region medium-term data collection plan

   Abstract:  Data are collected for use in scientific research, the results of which are used to ... , prevention of changes or minimisation of the risk of changes in the marine ecosystem which are not ... of Antarctic marine living resources. Based on these goals and previous experience in the fishery ... , proposed medium term research objectives for the Ross Sea fishery for the next 5–7 years were developed in ...

   Meeting Document : WG-FSA-10/32 : Autor(es): S. Mormede and S. Hanchet (New Zealand)

5. Fisheries risks to the population viability of black petrel (Procellaria parkinsoni)

   1.2% and 3.1% per year. Mark-recapture data were useful in estimating demographic parameters, like ... spend an average of 1.2 y in the colony as pre-breeders, with only 3% skipping the pre-breeder phase. Of ... birds that appear in the study area as pre-breeders and survive to breed, only 68% do so in the study ... well determined because we can’t distinguish mortality from emigration (birds that breed in an area ...

   Meeting Document : WG-SAM-10/P01 : Autor(es): R.I.C.C. Francis and E.A. Bell (New Zealand)

6. Distribution and ecology of Chaenocephalus aceratus (Channichthyidae) around South Georgia and Shag Rocks (Southern Ocean).

   demersal fish living on the South Georgia shelf where it is caught in low numbers as by-catch in the ... that growth was fast in the first five years with males and females attaining lengths at first spawning ... in diet from Euphausia superba and mysids to benthic fish and decapods observed to begin at 250 mm TL ... . In larger fish (> 500 mm TL) the diet was dominated by fish. C. aceratus diet is sufficiently ...

   Meeting Document : WG-FSA-07/P5 : Autor(es): W.D.K Reid, S. Clarke, M.A. Collins and M. Belchier. (Polar Biol., 30 (12): 1523–1533 (2007))

7. Histopathology of Antarctic krill (Euphausia superba) bearing black spots

   Abstract:  In Antarctic krill, Euphausia superba, sampled by a Japanese scientific observer ... onboard a krill fishing vessel in the winter of 2003 and 2006 in the South Georgia region, the Antarctic ... strains were also confirmed by in situ hybridization for 16S rRNA. The melanized nodules were almost ... secondary. The development of the tumor-like cell mass in the gonad may be the primary condition, although ...

   Meeting Document : WG-EMM-07/29 : Autor(es): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu (Japan)

8. Modelling growth of Antarctic krill: growth trends with sex, length, season, and region

   seasonal trend for each region. Smaller krill exhibited higher growth rates and a progressive decrease in ... growth was December in Indian sector, whereas in the Scotia Sea sector it appeared to be a few months ... earlier than this. Significantly lower growth rates were exhibited by females in January and February ... relative to males. Seasonal specific growth rates estimated in this study were compared to previous studies ...

   Meeting Document : WG-EMM-05/29 : Autor(es): S. Kawaguchi, S. Candy, R. King (Australia), M. Naganobu (Japan) and S. Nicol (Australia)

9. Mortalidad incidental de aves en la pesquería de cherna con palangre semipelágico

   Wreckfish (Polyprion americanus) and other fish species within the Uruguayan EEZ. Observers were trained in ... period. No significant differences in mortality were found between long line types, being higher in those ... comparing their abundance during line setting and resulting mortality. Difficulties were found in mitigation ... intermediate buoys. Although this fishery is no longer in Uruguay, the need to improve some information related ...

   Meeting Document : WG-FSA-04/38 : Autor(es): Y.H. Marín, A. Stagi and J. Chocca (Uruguay)

10. Reconciling theoretical versus empirical target strengths of krill; effects of phase variability on the distorted wave Born approximation

    , the authors noted that the differences were not entirely due to noise. In this study, the accuracy of ... the DWBA model is further explored. Results indicate that phase variability in the scatter from ... elements of a discretized bent cylinder (krill model) causes a dramatic flattening in the side-lobe regions ... krill TS measurements in McGehee et al. (1998). Thus, by accounting for phase-variability in the ...

    Meeting Document : WG-EMM-02/50 : Autor(es): D.A. Demer and S.G. Conti (USA)

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