Search results
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Atlantic sec- tor (0–90°W; Marr, 1962), which holds ~75% of the total stock (Atkinson et al., 2008 ... First it was simply classed as a herbivore (Marr, 1962) but later studies increasingly emphasised ... in the East Ant- arctic (Hunt et al., 2008). Trophically, gymnosomes are specialist preda- tors ... been reported in the seasonal ice zone of East Antarctica (Hunt and Hosie, 2006a; Tsujimoto et al ... Paper Title: An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and ... an enormous amount of data on Southern Ocean (SO) zooplankton, mostly on their distribution with a ... assist SO food-web modellers or those with limited specialist knowledge of SO zooplankton. First, a brief ... overview is provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Author(s): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of relative mortality and tag-detection rates
meaningful indices of relative performance of groups of fishing effort (e.g. vessel, trip, etc). We developed ... indices of (i) the mortality (or loss of all tags) of released fish and (ii) the detection rate ... indices of relative performance of groups of fishing effort (e.g. vessel, trip, etc). We developed indices ... of (i) the mortality (or loss of all tags) of released fish and (ii) the detection rate of recaptured fish ...
Meeting Document : WG-FSA-12/47 Rev. 1 : Author(s): S. Mormede and A. Dunn (New Zealand)
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Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate
temporal change in CEMP Parameter A5 (penguin foraging trip duration). Two different types of systematic ... three foraging trips each were required to detect a 35% step increase in foraging trip duration after ... three years or alternatively, with equal power, a 3.75% annual increase in trip duration after 12 years ... . Emmerson (Australia) Title: Detection of systematic change in Adélie penguin foraging trip duration ...
Meeting Document : WG-EMM-05/22 : Author(s): J. Clarke, C. Southwell and L.M. Emmerson (Australia)
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The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)
and sub- Antarctic regions but in the former their dis- tribution is restricted to areas of warmer water ... decreased from 70% at the shallower extent of their depth dis- tribution to < 50% at depths > 1 000 ... speed was not thought to influence the dis- tribution of crabs, although data remains sparse. General ... crabs, handling, etc. However, legal-sized males can also be released alive or dis- carded dead due ... Paper Title: The biology, ecology and development of fishery management advice for the anomuran ... available information on the biology and ecology of the lithodids at South Georgia and provides an overview ... of the development of a management regime for them. Finally it aims to highlight areas in which ... assessment and management methods in light of continuing interest in the regional crab fishery. Considerable ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Author(s): Belchier, M., T. Peatman and J. Brown
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Stability of trip selections for the assessment of Antarctic toothfish in the Ross Sea
) in the Ross Sea was selected on the basis of data quality metrics for individual trips. Initial informative ... datasets were selected comprising trips with high (above median) rates of recovery of previously released ... tags, and/or where tags released on the trip were subsequently recaptured at a high rate. These trips ... to tagging data. Other trips with data quality metric values within these ranges were added to the dataset ...
Meeting Document : WG-FSA-10/26 : Author(s): D.A.J. Middleton (New Zealand)
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Brief biological characteristics of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 according to the results of the SRTMK Itkul fishing trip in May 1995
(Dissostichus eleginoides) in Subarea 48.3 according to the results of the SRTMK Itkul fishing trip in May 1995 ... according to the results of the SRTMK Itkul fishing trip in May 1995 ...
Meeting Document : WG-FSA-95/12 : Author(s): Zaitsev, A.K.
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A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators
Abstract: We present a model at the level of the foraging trip for the effects of a fishery ... . Author(s): M. Mangel and P.V. Switzer (USA) Title: A model at the level of the foraging trip ... We present a model at the level of the foraging trip for the effects of a fishery on krill ... A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba ...
Meeting Document : WG-EMM-98/48 : Author(s): M. Mangel and P.V. Switzer (USA)
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A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators
on population level effects. Here, we present for. the first time a model at the level of the foraging trip ... at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill ... on population level effects. Here, we present for. the first time a model at the level of the foraging trip ... A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba ...
Meeting Document : WG-EMM-96/20 : Author(s): Switzer, P.V., Mangel, M.
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Infectious diseases of Antarctic penguins: current status and future threats
and by alterations due to climate change: the Western Antarctic Peninsula, the Ross Sea, and coastal regions of East ... System, means that our understanding is still patchy. A feather loss condition of unknown etiology ... regions of East Antarctica. We propose possible steps towards the goal of establishing baseline data ... to climate change: the Western Antarctic Peninsula, the Ross Sea, and coastal regions of East Antarctica ...
Meeting Document : WG-EMM-14/53 : Author(s): W.W. Grimaldi, P.J. Seddon, P.O.B. Lyver, S. Nakagawa and D.M. Tompkins (New Zealand)
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An examination of variance and sample size for female Antarctic fur seal trip durations
of sample size in detecting differences between two years of fur seal trip duration data. Female foraging ... trip duration for the first six trips to sea for 1997/98 (n = 30) and 1998/99 (n = 31) at Cape Shirreff ... -Ecosystem Monitoring Program Standard Method C 1.2 for measuring fur seal trip duration sets the sample size ... of variance and sample size for female Antarctic fur seal trip durations Approval: Approved ...
Meeting Document : WG-EMM-99/45 : Author(s): M.E. Goebel (USA)