Search results

1. Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (Subarea 88.1)

   by bottom longline in the Ross Sea during the 2001 and 2002 fishing seasons was analysed (3 937 and 5 426 ... stomachs examined respectively). Fish sampled in 2001 were caught at depths of 317 to 2 154 m and ranged ... m and ranged from 62 to 197 cm TL. A high proportion of stomachs were empty (34% in 2001 and 49% in 2002 ... difficult. Fish were the most important prey category (% F = 86 in 2001 and % F = 77 in 2002), in particular ... . Goldsworthy, S.D., X. He, G.N. Tuck, M. Lewis and R. Williams. 2001. Trophic interactions between ... 08fenaughty et al for pdf.indd CCAMLR Science, Vol ... longline in the Ross Sea during the 2001 and 2002 fi shing seasons was analysed (3 937 and 5 426 stomachs ... examined respectively). Fish sampled in 2001 were caught at depths of 317 to 2 154 m and ranged from 58 ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 113–123 : Author(s): Fenaughty, J.M., D.W. Stevens and S.M. Hanchet

2. Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects

   of an area stratum by fishing year interaction as an additional random effect in the GLMM is investigated ... . Fitting the stratum-by-year interaction as a fixed effect is problematic since it requires weighting ... -by-year interaction as a random effect avoids this difficulty, and diagnostic methods to evaluate ... the validity of considering this interaction as random are described. The methods are demonstrated using catch ... candy proof for pdf.indd CCAMLR Science, Vol. 11 ... by fi shing year interaction as an additional random effect in the GLMM is investigated. Fitting ... the stratum-by-year interaction as a fi xed effect is problematic since it requires weighting ... -by-year interaction as a random effect avoids this diffi culty, and diagnostic methods to evaluate ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Author(s): Candy, S.G

3. A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery

   to unacceptable levels. File:  Hill and Cannon.pdf ... ; to illustrate the elements of feed- back control strategies, and the issues that must be addressed ... on the simplified formulation of Constable’s (2001) multi-species model in Hill et al. (2006). It is modified ... the equations of Constable (2001), and harvesting and movement are represented with additive loss or gain ... - ables in each area (Constable, 2001): ( )2, ~ , ii k i KKK σ . (4) The sequences of random variables ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Author(s): Hill, S.L. and M. Cannon

4. Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region

   , including two indicator-only taxa. File:  05parker-bowden.pdf ... , 2009). However, by using examples instead of a definition, the guidelines avoid discussion of issues ... by Rogers et al. (2008), but they neces- sarily still leave many implementation issues to RFMOs, Regional ... they might interact with fishing gears (SC-CAMLR, 2009). An earlier version of this manuscript ... . Interactions with fishing gear Benthic invertebrates have been sampled in the Ross Sea for decades ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Author(s): Parker, S.J. and D.A. Bowden

5. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using CASAL

   appropriate, since SLOF could not be removed to an acceptable degree. The issues concerning the effect ... -constable.pdf ... was not considered appropriate, since SLOF could not be removed to an acceptable degree. The issues concerning ... appropriate, since SLOF could not be removed to an acceptable degree. The issues concerning the effect ... insights into the variety of issues that need to be addressed in toothfish assessments, notably the age ... were grouped into five groups with the main group, Survey Group 1, comprising surveys from 2001, 2002 ... : 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Number released1: 992 704 1168 1413 1268 1397 1260 ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 1–34 : Author(s): Candy, S.G and A.J. Constable

6. Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia

   to the ecology of krill and the fishery's interaction with local predator colonies. File:  01murphy-etal.pdf ... variability in the distribution of trawls. The data for 1993 were only available from August but the fishery ... of trawls. The data for 1993 were only available from August but the fishery was restricted in that period ... of krill and the fishery's interaction with local predator colonies. ... interannual variability in the distribution of trawls. The data for 1993 were only available from August ... . The results are discussed in relation to the ecology of krill and the fishery's interaction with local ... sont discutes en fonction de l'ecologie du krill et de l'interaction de la pGcherie et des colonies de ... interactions between the environment and krill. Such studies, however, are usually geographically limited ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Author(s): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt

7. Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia

   an overestimate of it. File:  03agnew-etal-sam06.pdf ... Georgia Figure 3: CPUE density interpolated from all data from 2001 to 2004 in box 14, showing also ... represent mean effort (in hooks) from 2001 to 2004, with the diameter of the circles being proportional ... 2001 and 2002, but without the tag–recapture element. Thus move- ment and natural mortality of tags ... size, growth and selectivity. These issues may have a part to play in creating further levels of bias ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Author(s): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark

8. Commercial krill fisheries in the Antarctic, 1973 to 1988

   to August). Trends in the fishery with respect to independent estimates of krill abundance and minke whale ... (Balaenoptera acutorostrata) catches are discussed. File:  15-Miller.pdf ... (April to August). Trends in the fishery with respect to independent estimates of krill abundance ... where fishing is predominantly confined to the winter months (April to August). Trends in the fishery ... the whole year round, the highest catch levels occur between April and August (Le. in late autumn through ... step in determining the effects of possible interactions between krill and other species requires ... definition of the temporal and spatial scales over which such interactions occur. An important consequence ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Author(s): Miller, D.G.M.

9. Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change

   scientific opportunities. Given the complexity of the possible interactions, and the need to study ... made by the Antarctic Treaty Meeting of Experts in 2010. File:  Trathan et al.pdf ... unique scientific opportunities. Given the complexity of the possible interactions, and the need ... interactions, and the need to study these in the absence of any other human-induced perturbation, this paper ... to both terrestrial and pelagic community interactions over recent geological timescales. If exposed ... continent and across all pos- sible physical and biological interactions is beyond the scope of operation ... - nificant, so the issue needs urgent resolution by CCAMLR. For example, the area of the Wilkins ice shelf ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Author(s): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock

10. Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)

    using satellite ocean colour data. File:  Strutton-et-al.pdf ... CZCS 4 October 1978 to June 1986 pigment 61%, n = 15 OCTS 9 August 1996 to July 1997 chlorophyll-a 21 ... of photosynthesis, including bet- ter understanding of the effect of temperature. In an attempt to avoid the issues ... pigment data to account for the known issue of underestimation (Sullivan et al., 1993). Annual Southern ... to the north in the late 1990s. Selph et al. (2001), based on observations well north of the Ross Sea ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Author(s): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear

Pages