Search results
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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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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.
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Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery. (Component of SC-CAMLR-VI/BG/4)
quality considerations- in particular the increasing tendency to avoid catching "green” krill. These ... factors result in Catch-per-Day and Catch-per-Haul measures being unlikely to index krill abundance ... time data may be needed to assess the density of swarms in a concentration, but may be difficult to ... record in practice, and a number of other factors may complicate any analysis. The possibility of ...
Meeting Document : WS-KCPUE-89/03 : Author(s): D.S. Butterworth (South Africa)
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By-catch of rays in the 2002/03 toothfish fishery around South Georgia
Abstract: The 2002/2003 fishing season was the first in which three new policies for rays were ... tried: • It was the first in which vessels were asked to cut off all rays at water level to assist ... survival and conservation of rays; • It was the first in which very good quality information was available ... from all observers’ tally periods on the catch rates of rays cut off the line; • In 2003 the UK, with ...
Meeting Document : WG-FSA-03/58 : Author(s): D.J. Agnew, J. Pearce and M. Endicott (United Kingdom)
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Fishing intensity of Russian fleet krill fishery in Subarea 48.2 and 48.3
Abstract: The purpose of this paper was estimating commercial fleet impact on krill population in ... -by-haul data using a model of probabilistic-statistical theory of fishery systems developed in the ... aggregated in the fishing grounds was assessed basing on 22800 haul data. The analysis of Soviet fleet ... competitive with dependent predators for the krill resource. In this case, a certain spatial overlap of the ...
Meeting Document : WG-EMM-02/62 : Author(s): S.M. Kasatkina and V.F. Ivanova (Russia)
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Review of rattail and skate by-catch and analysis of rattail standardised CPUE from the Ross Sea toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
Abstract: Little is known about the bycatch of skates, rays and macrourids in the target longline ... fishery for toothfish in the Ross Sea. Following concerns about the accuracy of reporting of bycatch ... raised by the 2001 CCAMLR bycatch subgroup, the processes for recording bycatch in this fishery were ... macrourid bycatch in this fishery. The review of data suggest that the toothfish fishery has not yet had a ...
Meeting Document : WG-FSA-02/40 : Author(s): R.G. Blackwell and S.M. Hanchet (New Zealand)