Search results
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
gunnari) populations at Heard Island are developed from the results of four scientific surveys conducted ... conducted at the end of the 1997 fishing season would allow for a catch limit on the Heard plateau of 900 ... Abstract: Assessments of the abundance and potential yield of mackerel icefish (Champsocephalus ... in 1990, 1992, 1993 and 1997. The assessments include estimates of all the parameters required, based ...
Meeting Document : WG-FSA-97/29 : Author(s): de la Mare, W.K., Constable, A., Williams, R.
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Revised research plan for toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2011/12
conducted at 14 hauls, due to understanding of differences in the physical conditions of tagged fish between ... 2010/11 fishing season with the aims of providing the data required for assessments of the population ... structure, size, movement and growth of Dissostichus spp. in the centred area of Division 58.4.4 a & b ... . An approximate stock biomass level of Dissostichus spp. in the survey area (SSRUs B and C in Division ...
Meeting Document : WG-FSA-11/15 Rev. 1 : Author(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Draft Krill Fishery Report
the preparation of a draft krill fishery report for consideration at WG EMM-14 that would be similar ... Abstract: At WG-EMM 2013 the Working Group agreed that it would be useful to have a consolidated ... summary of information related to the krill fishery in a similar format to the fishery reports that are ... in content to a finfish Fishery Report. The following compilation of information on the krill fishery ...
Meeting Document : WG-EMM-14/58 : Author(s): Secretariat
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The results of investigations of the feeding of Antarctic toothfish D. mawsoni in the Ross Sea in 2005/06
to 123 kg. In 2006 Antarctic toothfish was caught at depths of 478-1702 m and its TL ranged from 49 ... Abstract: The works on study of the diet composition of Antarctic toothfish were conducted from ... December to March during the two fishery seasons (2004-2005 and 2005-2006) in different fishing areas of ... 3000 stomachs (1913 stomachs in 2005 and 1087 ones in 2006) were analyzed. In 2005 fish was caught at ...
Meeting Document : WG-FSA-06/17 : Author(s): A.F. Petrov (Russia)
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Descriptive analysis of mesopelagic backscatter from acoustic data collected in the Ross Sea
Abstract: This report presents results from a pilot study to investigate the use of acoustics to ... quantify spatial and vertical distribution of acoustic backscatter in the upper 1000 m of the water column ... . There were clear spatial patterns in the amount and type of mesopelagic backscatter observed. There was ... much more backscatter in the upper 1000 m and a wider variety of mark types north of 67° S. Common mark ...
Meeting Document : WG-EMM-06/11 : Author(s): R.L. O’Driscoll (New Zealand)
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Terra Nova Bay: hot spot in marine and terrestrial biodiversity, knowledge and functioning of the ecosystem
Abstract: The Terra Nova Bay area is particularly valuable for science due to the presence of ... unique marine and terrestrial flora and fauna and the high diversity at both species and community level ... . From an oceanographic perspective, the area is characterised by the occurrence of the Terra Nova Bay ... polynya, a crucial region for the formation of the High Salinity Shelf Water (HSSW), formed by the ...
Meeting Document : WS-MPA-11/14 : Author(s): S. Torcini, M. Vacchi, S. Aliani, G. Bavestrello, A. Bergamasco, G. Budillon, B. Calcinai, G. Catalano, R. Cattaneo-Vietti, C. Cerrano, M. Chiantore, S. Corsolini, R. Bargagli, A. Dell’Anno, G. di Prisco, G. Fusco, S. Focardi, L. Gugliemo, G. Lauriano, P. Luporini, O. Mangoni, S. Olmastroni, F. Pezzo, E. Pisano, L. Ghigliotti, P. Povero, S. Puce, A. Pusceddu, E. Rusciano, M. Saggiomo, V. Saggiomo, M.C. Gambi, S. Schiaparelli, G. Spezie, C. Verde, P. Del Negro (Italy)
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DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA
plus group of the proportions-at-age catch data were less than ideal. Model estimates of proportions ... other factors to quantify risk and uncertainties for management of the Ross Sea Antarctic toothfish ... program allows implementation of an aggregate movement model for use with large numbers of areas as a ... mortality), as well as movement processes defined as the product of a set of preference functions that are ...
Meeting Document : WG-SAM-09/18 : Author(s): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)
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Further development of coarse- and medium-scale spatially explicit population dynamics operating models for Antarctic toothfish in the Ross Sea region
proportions-at-age observations were generally good in most models, although fits to the plus group of the ... proportions-at-age catch data were less than ideal. Model estimates of proportions-mature appeared to be ... program allows implementation of an aggregate movement model for use with large numbers of areas as a ... mortality), as well as movement processes defined as the product of a set of preference functions that are ...
Meeting Document : WG-FSA-12/44 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Information on the spawning of Dissostichus mawsoni from Subareas 88.1 and 88.2 in the 2003/04 season
. The onset of spawning in D. mawsoni is in December and continues until at least June, in both Sub ... Abstract: Data on maturity, gonadosomatic index (GSI) and length weight of Antarctic Toothfish ... -areas 88.1 and 88.2, and spawning occurs on isolated geographic features north of the main Antarctic ... shelf areas. One of the mature fish caught in Sub Area 88.2 had originally been tagged in McMurdo Sound ...
Meeting Document : WG-FSA-04/34 : Author(s): G.J. Patchell (New Zealand)
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The use of predator-derived krill length-frequency distributions to calculate krill target strength
predators to provide a length-frequency distribution of krill at times when it is possible to run automated ... krill biomass at times of the season hitherto unavailable from ship-board scientific surveys. Author(s ... ecosystem based approach to resource management. We propose a method using krill sampled from the diet of ... operations. This will allow a robust estimate of krill abundance to be estimated from acoustic data. Changes ...
Meeting Document : WG-EMM-00/42 : Author(s): K. Reid and A.S. Brierley (United Kingdom)