Search results
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Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models
size of these impacts in the scenarios tested were small, we recommend that research be focused, at ... Abstract: An important management objective for CCAMLR in the high seas region of the Antarctic ... is to develop appropriate methods of monitoring and managing impacts of bottom fisheries on ... investigate a range of simple scenarios for simulating the effect and management of benthic impacts from ...
Meeting Document : WG-SAM-10/19 : Author(s): A. Dunn, S.J. Parker and S. Mormede (New Zealand)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... -at-age and tag-recapture data from New Zealand and all vessels. The updated reference case resulted ... in a slightly higher estimate of initial biomass than in 2005, though this was mostly due to a ... different assumption of the level of natural mortality (M=0.13 y-1), and the revised length-weight and ...
Meeting Document : WG-FSA-06/48 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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Methodology for automated spatial sea ice summaries in the Southern Ocean
during historical fishing events. The distribution of local ice concentration at the time of each fishing ... Abstract: Sea ice is recognised as a core driver of both ecosystem dynamics and fishery ... dynamics of sea ice in a target location for a specified period, and a temporal view is used to ... relationship between sea ice concentration and fishing. Although more than 85% of fishing events occurred in ...
Meeting Document : WG-FSA-14/54 : Author(s): S.J. Parker, S.D. Hoyle, J.M. Fenaughty and A. Kohout (New Zealand)
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A SIMULATION MODEL FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES
ecosystems’ in order to maintain the ecological structure and function of, particularly, deep sea benthic ... habitats. Noting the paucity of data on the ecology of these habitats, this paper provides a practical ... approach to develop and evaluate fishing strategies aimed at achieving this objective i.e. what is the most ... requirement can be translated into a simple operational objective: Maintain the quality of habitats above the ...
Meeting Document : WG-SAM-09/21 : Author(s): A.J. Constable (Australia)
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Feedback management through effort regulation
Abstract: The interim distribution of the trigger level in the fishery for Antarctic krill (CM 51 ... -01) will be revised in 2016. The trigger level is not related to the status of the krill stock and ... the predators that depend on it. Progressing the development of an operational FBM system in ... proposals tabled to CCAMLR, all of which require refinements. In particular, clarity about the data required ...
Meeting Document : SC-CAMLR-XXXV/BG/29 Rev. 1 : Author(s): Delegation of Norway
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An assessment of the use of ocean gliders to undertake acoustic measurements of zooplankton: the distribution and density of Antarctic krill in the Weddell Sea
significant difference from observed profiles. Simulated glider dives required at least an order of magnitude ... , in separate survey boxes on the continental shelf to the east of the Antarctic Peninsula, to assess ... the distribution of Antarctic krill (Euphausia superba). During the glider missions, a research vessel ... analysis of glider pitch and roll indicated that, if not taken into account, glider orientation can impact ...
Meeting Document : WG-EMM-14/P02 : Author(s): D. Guihen, S. Fielding, E. Murphy, K. Heywood and G. Griffiths
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Feasibility of lead-radium dating the otoliths of blackfin icefish (Chaenocephalus aceratus) and ocellated icefish (Chionodraco rastrospinosus)
Abstract: Application of lead-radium dating was attempted as a feasibility study for otoliths of ... otoliths from these fishes were small and the number of otoliths available low, a whole otolith application ... was necessary as a first look at lead-radium levels. The application was successful as a first step in ... determining the parameters of future applications that would lead to a validation of age. In the current study ...
Meeting Document : WG-FSA-10/17 : Author(s): A.H. Andrews, M. La Mesa and J. Ashford (USA)
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A review of rattail (Macrourus spp.) and skate by-catch and analysis of standardised CPUE, for the exploratory fishery in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) from 1997/98 to 2004/05
Abstract: A standardised CPUE analysis was used to determine factors affecting bycatch rates of ... were vessel, area, and depth. Catch rates of rattails were highest along the shelf edge (SSRUs 88.1E ... , 88.1I, 88.1K and 88.2E) in depths from 600 to 1000 m, and there was an order of magnitude difference in ... rattail catch rates between different vessels. Examination of vessel characteristics showed that catch ...
Meeting Document : WG-FSA-05/24 : Author(s): S.L. Ballara and R.L. O’Driscoll (New Zealand)
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Incidental mortality of seabirds associated with longline fishing in Subarea 48.3 – preliminary results of scientific observations onboard the Chilean longliner, Puerto Ballena, from March to May 1996
Abstract: Estimates of the number of seabirds taken incidentally in longline fisheries on ... observations on the by-catch of seabirds during a cruise of the Chilean longliner 'Puerto Ballena' in ... Statistical Subarea 48.3. A total of 118 dead black-browed albatrosses, 3 dead grey-headed albatrosses, 46 ... particularly at risk when longlines are set during the day and/or the streamer line is malfunctioning. If ...
Meeting Document : WG-FSA-96/31 : Author(s): Selling, J., Kock, K.-H.
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Southern Ocean fishing vessel management
initiatives aimed at the implementation of the IMO’s Polar Code. It also elaborates on the development of an ... Abstract: This paper provides an update on the development of safety measures for non-SOLAS ... Members to contribute to expanded cooperation between the IMO and the Antarctic Treaty System in areas of ... relevance to fishing vessels including by: Engaging fully in the negotiations at the IMO to ensure that any ...
Meeting Document : CCAMLR-38/BG/47 : Author(s): Submitted by ASOC