Search results
-
The morphology of Antarctic toothfish (Dissostichus mawsoni Norman 1937) males and females and new data on its gonad structure in the Ross Sea in the summer period
Abstract: The results of the histological analysis of the Antarctic toothfish (Dissostichus ... 88.2 of the Ross Sea are presented. The morphological parameters and indices of maturity have been ... described. The histological criteria of the assessment of the ovary maturity stages, cytological parameters ... of oocytes and type of the toothfish oogenesis have been determined. The analysis of the histological ...
Meeting Document : WG-FSA-07/38 Rev. 2 : Author(s): S.V. Piyanova and N.V. Kokorin (Russia)
-
Seasonal relationships in biological parameters and in spatial distribution in the euphausiid populations sampled during the XIIIth and XVth expedition to the Ross Sea
Abstract: This report summarises the results of krill studies from a large-scale surveys of the ... samples data on Euphasiids were analysed at the aim of: 1) obtain a general picture of interannual and ... crystallorophias in the western Ross Sea (Antarctica) in relation to ice cover. 2) Explore the population structure ... of E. superba and its possible spatial and temporal variations across the investigated area. The ...
Meeting Document : WG-EMM-01/62 : Author(s): M. Azzali, J. Kalinowski, G. Lanciani, I. Leonori and A. Sala (Italy)
-
Size variations associated with abundance changes in juvenile Notothenia rossii observed at Potter Cove, South Shetland Islands, since the end of the fishery in the area
Abstract: Samp1es of fjord fish of the species N. rossii and N. neglecta collected at Potter Cove ... , King George/25 de Mayo Island, South Shetland Islands, from 1983 to 1991, allowed to study the ... previously reported abundance changes as a size-related process. The data were analyzed using a Nested ANOVA ... design to obtain variance components and expected values. An increase and then a decrease in the expected ...
Meeting Document : WG-FSA-91/13 : Author(s): E. Marschoff and E. Barrera-Oro (Argentina)
-
Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)
Abstract: The unicorn icefish, Channichthys rhinoceratus and the grey rock cod, Lepidonotothen ... squamifrons are among the most common species bycaught in the toothfish and mackerel icefish trawl fisheries ... at Heard Island and McDonald Islands (HIMI) (Division 58.5.2). These species are rarely taken in the ... longline fishery, but form the most abundant bycatch of the trawl fisheries after skates (Bathyraja spp ...
Meeting Document : WG-FSA-12/24 : Author(s): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)
-
Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
Abstract: The results of Butterworth et al. (1992) relating potential krill yield to a pre ... -exploitation survey estimate of kril1 biomass are extended to incorporate most of the amendments specified by ... the Third and Fourth Meetings of Working Group on Krill. The most important of these extensions is ... integration over the ranges of uncertainty for a number of the model parameters. Results are provided for the ...
Meeting Document : WG-KRILL-93/42 : Author(s): D.S. Butterworth, G.R. Gluckman, R.B. Thomson and S. Chalis (South Africa)
-
New data acquisition protocol for benthos by-catch in the French fisheries of the Southern Ocean, presentation of the protocol and first preliminary results
Abstract: In 2015, the Muséum national d’Histoire naturelle has started to develop a new data ... acquisition protocol for benthos bycatch in the French fisheries of the Southern Ocean (statistical areas ... the benthic macro-invertebrates collected by the fishing gears. The main objective is to increase ... knowledge on the benthic ecosystems impacted by the French fishing activities, in a context marked by the ...
Meeting Document : WG-EMM-17/09 : Author(s): A. Martin, M. Eléaume, N. Améziane, P. Pruvost and G. Duhamel
-
UPDATE OF THE INTEGRATED STOCK ASSESSMENT FOR THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS (DIVISION 58.5.2)
Abstract: The integrated assessment of Patagonian toothfish, Dissostichus eleginoides, for the ... ) analysis of the age-length frequency data suggested that ALKs could be pooled across sub-fisheries without ... significant loss of information. Pooling the ALKs in this way meant that all commercial catch data could be ... input to CASAL as catch-at-age proportions except for the 2009 catches. For 2006 and 2007 random ...
Meeting Document : WG-FSA-09/20 : Author(s): S.G. Candy and D.C. Welsford (Australia)
-
Report on attendance at the Fourth Meeting of the Committee for Environmental Protection Under the Madrid Protocol
Abstract: This report outlines the participation of the SC-CAMLR Chair in the Fourth Meeting of ... the Committee for Environmental Protection (CEP-IV) under the Madrid Protocol. The most important ... issues of relevance to SC-CAMLR are: (1) A report of an open-ended intersessional contact group of the ... , the designation of Antarctic Specially Protected Species. The contact group will continue under a ...
Meeting Document : CCAMLR-XX/BG/03 : Author(s): Chair of the CCAMLR Scientific Committee
-
A new bathymetric compilation for the South Orkney Islands, Antarctic Peninsula (49°–39°W to 64°–59°S): insights into the glacial development of the continental shelf
Abstract: We present a new, high resolution (300 m) bathymetric grid of the South Orkney Islands ... and surrounding continental shelf, northeast of the Antarctic Peninsula. The new grid, derived from a ... visualise the morphology of the shelf in unrivalled detail. The compilation forms important baseline ... , the bathymetry provides the first detailed insights into past glacial regimes. The continental shelf ...
Meeting Document : WG-EMM-14/P01 : Author(s): W.A. Dickens, A.G.C. Graham, J.A. Smith, J.A. Dowdeswell, R.D. Larter, C.-D. Hillenbrand, P.N. Trathan, J.E. Arndt and G. Kuhn
-
Progress report on the scientific data compilation and analyses in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica)
, Bremerhaven) and SC-CAMLR-XXXII/BG/07 (SC-CAMLR-XXXII, Oct 2013, Hobart). The authors intend to update the ... Working Group on Ecosystem Monitoring and Management on the actual state of our project, particularly on ... the proceeds of the data acquisition process and the preliminary scientific analysis. In addition, we ... present the report of the International Expert Workshop on the Weddell Sea MPA project (7-9 April 2014 ...
Meeting Document : WG-EMM-14/19 : Author(s): K. Teschke, K. Jerosch, H. Pehlke and T. Brey (Germany)