Search results
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Proposed revision to the estimation of fisheries footprints
Abstract: A revised approach to the estimation of longline fisheries footprints is presented. The ... method uses a data-derived estimate of the uncertainty around the locations of longlines to define a ... grid. The proportion of the area of each grid cell that is covered by buffered lines is then used as a ... footprint index. Author(s): CCAMLR Secretariat Title: Proposed revision to the estimation of fisheries ...
Meeting Document : WG-FSA-2019/67 : Author(s): CCAMLR Secretariat
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ANTARCTIC KRILL DEMOGRAPHY AND POPULATION DYNAMICS WEST OF THE ANTARCTIC PENINSULA IN 2010/11
Abstract: A krill net sampling survey was carried out west of the Antarctic Peninsula in January ... Elephant Island and the western entrance of Bransfield Strait, the “Polarstern” survey grid followed back ... , Salpa thompsoni. The results of this survey represent the most complete picture of the spatial ... distribution of krill abundance, demography, and production on the western side of the Antarctic Peninsula ...
Meeting Document : WG-EMM-11/13 : Author(s): V. Siegel (Germany), C. Reiss (USA), K. Dietrich (USA), M. Haraldsson (Sweden) and G. Rohardt (Germany)
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Developing conceptual models of the Antarctic marine ecosystem: squid
Abstract: The Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR) is ... currently considering plausible models of the Southern Ocean ecosystem within the Working Group on Ecosystem ... Monitoring and Management (WG-EMM). While recognised to be an important component of this ecosystem ... ecosystem models except perhaps to assess their potential impact as predators of Antarctic krill. This paper ...
Meeting Document : WG-EMM-04/26 : Author(s): K. Phillips (Australia)
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Studies on zooplankton with special reference to krill from the Indian Ocean sector of the Southern Ocean
Abstract: Distribution, abundance and species composition of zooplankton collected during the ... of zooplankton community and the population density ranged fiom 650 to 7209/100 m-3 of zooplankton ... catch. Swarms of krill and salps were observed during the study period (austral summer) which were the ... prime cause for high standing stock of zooplankton. The prevailing physical parameters could be the ...
Meeting Document : WG-EMM-98/35 : Author(s): K.L. Bhat, R. Vijayakumar and V. Jaya Sree (India)
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THE AUTOLINE SYSTEM – AN UPDATED DESCRIPTIVE REVIEW OF THE METHOD WITH RECOMMENDATIONS TO CLARIFY CCAMLR CONSERVATION MEASURES REGULATING LONGLINE FISHERIES WITHIN THE CONVENTION AREA
discussing circumstances and scenarios occurring with the method. A definition of the fundamental unit of ... gear (a ‘line’) for longlines is proposed for the purposes of regulation and management. Current ... changes are suggested clarify understanding of these measures. The paper includes a recommendation for a ... review of Annex 41-01/B (2007) governing research within exploratory fisheries by WG-FSA with a view to ...
Meeting Document : WG-FSA-08/60 : Author(s): J.M. Fenaughty (New Zealand)
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Pursuit of polynyas in the Antarctic peninsula area
influence biological activity. We pursued daily transition of coastal polynyas in the Antarctic Peninsula ... area from 1978 through 1995 using images of sea ice concentrations by the satellite microwave ... observations. A typical polynya existed off the tip of the Peninsula in 1987 and 1991. In the such years, sea ... ice cover developed extensively. Inversely, the years of the narrow sea ice cover were 1988, 1989,1990 ...
Meeting Document : WG-EMM-97/69 : Author(s): Kimura, N., Shibazaki, K., Matsumura, S., Naganobu, M., Okada, Y.
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Dynamic model of krill Euphausia superba swarm
, using the 38 and 120 kHz BioSonics dual-beam hydroacoustic system, numerous swarms of krill Euphausia ... superba Dana were registered. Analysis of their physical parameters was carried out. It is known that ... . Using physical parameters of the krills' swarm (density, length), the above assumption was verified ... . It was found that the vertical density pattern of krills' swarm, with a mean density of up to ...
Meeting Document : WG-EMM-95/68 : Author(s): Kalinowski, J., Azzali, M.
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Abundance, distribution, energy density and trophic position of euphausiids during winter 2012: preliminary results from the first US AMLR Winter Survey
sampling program to better understand winter conditions affecting the productivity and survival of ... collection and analysis of water samples from fixed depths. Net tows for euphausiids and other pelagic ... zooplankton taxa are also collected. Here we present preliminary results of a first 8 day shakedown cruise ... reporting the distribution, size and properties of krill and other euphausiids and present some data on ...
Meeting Document : WG-EMM-13/40 : Author(s): C. Reiss and C. Jones (USA)
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Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of the Antarctica
Abstract: We present our data on DNA-analysis of recent (2011-2013) samplings of Antarctic ... results, based on analysis of SNP variation of the most informative subset of nuclear genetic markers ... presented in Kuhn and Gaffney, 2008, do not support temporary stable genetic differentiation of samples from ... stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of the Antarctica ...
Meeting Document : WG-FSA-13/07 : Author(s): N.S. Mugue, A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev (Russia)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2014 random stratified trawl survey
vicinity of Heard Island during June 2014. This paper provides a preliminary assessment of mackerel icefish ... population structure, abundance and yield for the area of Division 58.5.2 to the west of 79° 20’ E using ... standard CCAMLR methods. A pattern of multiple year classes being present simultaneously in the population ... 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)