Search results
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Development of foraging behaviour and evidence of extended parental care in the gentoo penguin (Pygoscelis papua)
approximately 2500 breeding pairs of gentoo penguins in Admiralty Bay, King George Island, South Shetland ... with extended parental provisioning, behaviours not observed in other Pygoscelis species. Chicks took ... adult foraging trips in both timing and duration. Behavioural observations confirmed that many chicks ... in the late afternoon to evening hours. We hypothesize that these behaviours not only provide the ...
Meeting Document : WG-EMM-06/8 : Author(s): M. Polito and W.Z. Trivelpiece (USA)
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SPATIAL DISTRIBUTION AND AGE STRUCTURE OF THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA, ANTARCTICA
toothfish (Dissostichus mawsoni) are subject to an increasingly important commercial fishery in the Ross Sea ... -line fishery in the Ross Sea were superimposed on the habitat map and broken into discrete spatial ... areas. Differences in age distributions between these areas were found using ANOVA. These distributions ... and older fish were located on the continental slope. In addition, the older and most mature ...
Meeting Document : WG-FSA-08/18 : Author(s): C.M. Brooks and J.R. Ashford (USA)
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Proposal for managing scientific reference material to support ongoing discussions in the Commission
preferred not to be in the public domain, therefore not in those reports. Other material may be provided by ... Members and needed for ongoing discussions over many years. In both cases, there is currently no suitable ... repository to enable ready access during deliberations of the Commission. By example, in 2014, the SC-CAMLR ... in to the site. The Reference Material section would then have child pages representing major ...
Meeting Document : SC-CAMLR-XXXIV/01 : Author(s): Delegation of Australia
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Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)
Abstract: In order to adequately achieve CCAMLR’s conservation objectives and preserve the ... the benthic communities of this region that are characteristically mosaic in their distributions. As ... in CCAMLR’s Report of the Workshop on Vulnerable Marine Ecosystems (E-SC-XXVIII-A10, 2009) and as ... recognized by WG-EMM in previous years. Herein, evidence appropriate to the diverse characteristics of the ...
Meeting Document : WG-EMM-18/35 : Author(s): S. Lockhart and J. Hocevar
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Upward adjustments to local catch limits for the krill fishery in Subarea 48.1
adjustments to local catch limits for the krill fishery in Subarea 48.1. We use the term local catch limit to ... the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13). We propose upward ... krill fishery in Subarea 48.1 (see Watters et al. 2016). Our proposal to make upward adjustments is ... the stoplight is “green” and there has been a concomitant increase in local krill biomass. We ...
Meeting Document : WG-EMM-16/47 : Author(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
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A feedback management strategy for the krill fishery in Subarea 48.1
Abstract: We present a Stage-2 strategy for in-season feedback management (FBM) of the krill ... fishery in Subarea 48.1. This strategy is a combination of two strategies that were separately proposed ... to the WG-EMM in 2015 and is based on a broad foundation of work undertaken to address a suite of ... action items specified by the WG-EMM. A decision rule to adjust catches in groups of SSMUs (gSSMUs) is ...
Meeting Document : WG-EMM-16/48 : Author(s): G.M. Watters, J.T. Hinke and C.S. Reiss
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Evaluating methods to assess yield of Patagonian toothfish (Dissostichus eleginoides) in CCAMLR Division 58.5.2
developed to evaluate possible management strategies for the Patagonian toothfish fishery in Division 58.5.2 ... currently being used for Patagonian toothfish in Division 58.5.2, the types of data and observations of the ... Subgroup on Assessment Methods workshop to be held prior to the meeting of WG-FSA in 2005. These results ... will be presented in an updated version of this paper provided to the workshop. Author(s): A.J ...
Meeting Document : WG-FSA-05/69 : Author(s): A.J. Constable, I. Ball, B. Raymond, S. Candy, R. Williams (Australia) and A. Dunn (New Zealand)
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Accounting for food requirements of seabirds in fisheries management – the case of the South African purse-seine fishery
Abstract: In South Africa, four seabirds that feed mainly on sardine Sardinops sagax and anchovy ... requirements have not been accounted for in management of the purse-seine fishery on sardine and anchovy. Means ... conservation status of a species may prove useful in determining minimum viable populations, and that the use ... of functional relationships in coupled models of predators and their prey may enable quantification ...
Meeting Document : WG-EMM-04/28 : Author(s): R.J.M Crawford (South Africa)
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Preliminary analyses of data collected during experimental fishing for Patagonian toothfish in international waters of the southwest Indian Ocean (Area 51)
procedures, in a restricted area south of Madagascar and north of the Prince Edward and Marion Islands and ... and 1950 metres depth. The Patagonian toothfish appeared in all those sets carried out with values ... of the main ground, in which a residual recruitment effect persists. The total CPUE was 42.21 kg/1000 ... hooks. Depth is the most important factor in Patagonian toothfish distribution within the study area ...
Meeting Document : WG-FSA-04/19 : Author(s): L.J. López Abellán (Spain)
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USING GENERALIZED DISSIMILARITY MODELLING TO ANALYSE AND PREDICT PATTERNS OF BETA DIVERSITY IN REGIONAL BIODIVERSITY ASSESSMENT
predicting spatial patterns of turnover in community composition (beta diversity) across large regions. The ... nonlinearity commonly encountered in large-scaled ecological data sets: (1) the curvilinear relationship ... ) the variation in the rate of compositional turnover at different positions along environmental ... assessment activities including visualization of spatial patterns in community composition, constrained ...
Meeting Document : WS-VME-09/P03 : Author(s): Richardson, K., Manion, G., Ferrier, S., Elith, J.