Search results
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Hydroacoustic surveys of the distribution and abundance of krill: Prydz Bay region – FIBEX, ADBEX II and SIBEX II
Dana, were undertaken in the Prydz Bay region, Antarctica. Three surveys were carried out south of 60°S ... of error in the echointegration technique are presented. Quantitative data are presented on the ... abundance (biomass) of krill in the Prydz Bay region as a whole and the weight density of krill along each ... cruise track is presented in graphical form. These data demonstrate a patchy density distribution with ...
Meeting Document : SC-CAMLR-VII/BG/40 : Author(s): Delegation of Australia
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Report on bottom fisheries and vulnerable marine ecosystems: draft template and workplan
Vulnerable Marine Ecosystems to WG-EMM and WG-FSA in 2010. This paper provides a draft template, including ... the workplan and discussion. It has been compiled by the Subgroup for consideration at WG-EMM in 2010 ... of VMEs, resulting in the following structure to replicate that approach: (i) Details of Bottom ... Scientific Committee and its working groups have been embedded within this structure in order to give them a ...
Meeting Document : WG-EMM-10/15 : Author(s): WG-FSA Subgroup on VMEs
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The orderly development of the krill fishery
in Statistical Division 58.4.2 Australia noted that while the scientific data supported an increase ... , such a large increase required the inclusion of other elements in the conservation measure to ... considers critical to the orderly and precautionary development of the krill fishery. In summary Australia ... recommends that: o Krill stock surveys be undertaken in areas with no precautionary catch limits in order to ...
Meeting Document : CCAMLR-XXVI/30 : Author(s): Delegation of Australia
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Progress towards a trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
Ross Sea is a low primary production system, with production being localised in space and time. In the ... considered a work in progress. Overall, the model is close to balance, with total exports of organic carbon ... balanced, due in part to limited information on diet fractions of Ross Sea organisms. Methods to adjust ... considerable predation pressure on some species of demersal fish. The significance of toothfish in the diets of ...
Meeting Document : WG-EMM-06/14 : Author(s): M. Pinkerton, S. Hanchet and J. Bradford-Grieve (New Zealand)
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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 ... interactions with fishing gear in New Zealand fisheries and fisheries that operate using similar methodologies ... for the fisheries management made, and areas for further research in New Zealand identified. Factors ...
Meeting Document : WG-FSA-05/P8 : Author(s): Bull, L.
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Developing integrated assessments for Dissostichus eleginoides based on the CCAMLR precautionary approach
Abstract: This paper describes a possible method for implementing the precautionary approach in ... Dissostichus eleginoides in Division 58.5.2. CASAL and GYM are key elements in the implementation described in ... this paper but the methodology is laid out in such a way that alternative software solutions could be ... used in either or both of their places. The framework for this procedure has four main components. The ...
Meeting Document : WG-FSA-SAM-05/16 : Author(s): I. Ball and A.J. Constable (Australia)
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The Ross Sea, Antarctica, where all ecosystem processes still remain for study
scientific effort has been invested in studies of the geology, physics and biology of the Ross Sea over the ... past 45 years. In particular the activities of the US, NZ and Italian Antarctic programs have been a ... wealth of knowledge, including long-term biological data sets, not available anywhere else in the ... scientific resource. The Ross Sea represents an unparalleled natural laboratory in which the results of ...
Meeting Document : WG-EMM-02/60 : Author(s): D. Ainley (USA)
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Population dynamics of wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island: longline fishing and environmental influences
Wandering Albatross Diomedea exulans. The number of birds breeding in this population has fluctuated over ... the past three decades and appears to be the result of both real changes in the size of the population ... and changes in the proportion of the population that attempts to breed in a given year. We describe ... changes in several demographic parameters that appear to be influenced by both environmental and ...
Meeting Document : WG-FSA-02/16 : Author(s): D.C. Nel, P.G. Ryan and J. Cooper (South Africa)
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Report to CCAMLR-XXIX on the implementation of the Agreement on the Conservation of Albatrosses and Petrels
revealed that the most effective measures to reduce incidental take of seabirds in pelagic longline ... ;- setting at night; and- actively deterring birds from baited hooks by means of bird scaring lines, in ... combination with appropriate line weighting. The SBWG also reviewed progress in bycatch mitigation research ... take of seabirds in trawl fisheries is the effective management of offal discharge and fish discards ...
Meeting Document : CCAMLR-XXIX/BG/18 : Author(s): ACAP Secretariat
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
other model parameters in integrated assessments via CASAL for the Heard and McDonald Islands (HIMI ... to the main trawl ground in which the longest time series of catches and the great majority of ... years 1998 to 2008. A large proportion of the recaptures of fish released in this fishery were aged and ... programmed in R, based on alternative ordinary differential equations (ODE) for within-year population ...
Meeting Document : WG-FSA-10/41 : Author(s): S. Candy, D. Welsford, T. Lamb, J. Verdouw and J. Hutchins (Australia)