Search results
-
Killer whale Orcinus orca and sperm whale Physeter macrocephalus interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
Living Resources) observers between 2000 and 2002 at South Georgia (Subarea 48.3) in the Southeast ... deployed in depths of 300 to 2000m, concentrated along the 1000m contour. Sperm whales were the most ... abundant marine mammals observed in the vicinity of vessels when lines were being hauled, occurring during ... were not often sighted. Interactions with killer whales were most often observed in the day, mostly in ...
Meeting Document : WG-FSA-03/27 : Author(s): M.G. Purves (United Kingdom), D.J. Agnew (United Kingdom), E. Balguerías (Spain), C.A. Moreno (Chile) and B. Watkins (South Africa)
-
Catches of target species in the Convention Area
Abstract: Summary of catches from directed fishing on toothfish, icefish and krill in the ... Convention Area in 2014/15 and 2015/16, including catches taken during scientific surveys conducted in ... accordance with Conservation Measure 24-01. Catches reported in 2014/15 were published in the CCAMLR ... in 2015/16 are also summarised. Author(s): CCAMLR Secretariat Title: Catches of target species in ...
Meeting Document : SC-CAMLR-XXXV/BG/01 : Author(s): CCAMLR Secretariat
-
The Norwegian SWARM project: from swarming behaviour to trophic interactions: modelling dynamics of Antarctic krill in ecosystem hotspots using behaviour-based models
Abstract: Norway is in the process of extending its monitoring efforts in the area around South ... Orkneys by deploying acoustic moorings in a commercially exploited area. Data gathered from the moorings ... will be used to parametrise models, in order to gain better understanding of the interaction between ... ocean physics and behaviour in driving krill biomass variation in the area. Author(s): T.A. Klevjer, G ...
Meeting Document : WG-EMM-17/26 : Author(s): T.A. Klevjer, G. Rieucau, A.H.H. Renner, G. Skaret and O.R. Godø
-
Proposal for a mark–recapture experiment to estimate toothfish population size in Subarea 48.4
Abstract: One UK vessel fished around the South Sandwich Islands (Subarea 48.4) in in July, 2005 ... in accordance with CM 41-03. During this time fish were tagged in order to start a mark-recapture ... programme to assess the toothfish population. Catch rates were similar to those experienced in Subarea 48.3 ... . The UK proposes to undertake a more extensive mark-recapture experiment in Subarea 48.4 over the 2006 ...
Meeting Document : WG-FSA-05/57 : Author(s): Delegation of the United Kingdom
-
Plan of research program of the Russian Federation in Subarea 48.5
Abstract: Research program in the Weddell Sea in season 2015/2016 and the following seasons ... presented by the Russian Federation was prepared in accordance with recommendations of the Scientific ... Federation and adopted by the SC in 2012 (WG-FSA-12/12). Past WG-SAM-2015 (Warsaw, Poland) made no ... -35” obtained by the vessel in 2014. But, the Convention and Conservation Measures in force (Schedule ...
Meeting Document : WG-FSA-15/29 : Author(s): Delegation of the Russian Federation
-
A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2014 random stratified trawl survey
Abstract: The annual Random Stratified Trawl Survey was undertaken in Division 58.5.2 in the ... standard CCAMLR methods. A pattern of multiple year classes being present simultaneously in the population ... , which was first detected in 2011, has persisted. The large cohort observed in recent surveys was still ... projected. These projections indicate that catches of 309t in the 2014/15 season and 275t in the 2015/16 ...
Meeting Document : WG-FSA-14/44 : Author(s): D.C. Welsford (Australia)
-
Quantifying the impacts of ice on demersal longlining; a case study in CCAMLR Subarea 88.1
Abstract: The effect of sea ice is acknowledged as a major influence on fishing operations in ... high latitudes but not widely understood in detail other than by fishers and specialists in Antarctic ... fisheries research and management. Using the toothfish fishery in CCAMLR Subarea 88.1 as a case study we ... provide a method to quantify the effect of sea-ice on fishing. We discuss the ways in which ice effects ...
Meeting Document : WG-FSA-14/55 Rev. 1 : Author(s): J.M. Fenaughty and S.J. Parker (New Zealand)
-
An exploration of the biological data used in the CCAMLR Subarea 48.3 Patagonian toothfish stock assessments
Abstract: WG-FSA 2018 noted that changes in productivity parameters may impact assessment ... change. The Working Group recommended that key assessment parameters be reviewed and that changes in the ... fishery dynamics that would impact their estimation be explored. The biological productivity parameters in ... subarea 48.3 are analysed here, particularly whether the proportion of females in the catch, maturity at ...
Meeting Document : WG-SAM-2019/32 : Author(s): E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby
-
Assessments of by-catch in trawl fisheries at Heard and MacDonald Islands
caught as by-catch in the commercial trawl fisheries in the Heard Island area (Statistical SubArea 58.5.2 ... the spawning biomass of these stocks in the longer term. The long-term annual yield for each of the ... data obtained from the region in 1990-1993. Values for missing input parameters were obtained from the ... literature. The second part of the analysis examined the amount of each species caught in the commercial ...
Meeting Document : WG-FSA-97/30 : Author(s): de la Mare, W.K., Williams, R., Constable, A.
-
Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery
Abstract: Tag release and recapture data are used in integrated age-structured stock assessments ... of Antarctic toothfish (Dissostichus mawsoni) in Subareas 88.1 and 88.2 to determine abundance and ... ) could lead to an over-estimate of the stock biomass. In this paper we develop further an index of vessel ... subset of vessels for which there is confidence in their tag-recapture data. Finally, we apply these ...
Meeting Document : WG-SAM-13/34 : Author(s): S. Mormede (New Zealand)