Search results
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Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
removed from 170) during the 142 days of the 1988-89 pup-rearing season at Bird Island, South Georgia ... . This represents at least 0.1% of the total Bird Island population and a minimum of 0.4% of animals in ... the best covered areas; a maximum value might approach 1%. Poly-propylene straps (packaging bands ... ) formed 59% of collars, nylon string (15%), fishing net (13%) and six other materials comprising the rest ...
Meeting Document : CCAMLR-VIII/BG/05 : Author(s): J.P. Croxall, S. Rodwell and I.P. Boyd (United Kingdom)
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Selectivity of standard polish commercial trawl codends on Antarctic fishing grounds
= 100 mm, made of double twines with a thickness of 4.2 mm. The studies covered 6 major fish species. 1 ... . It appears from the study that Antarctic icefish and bumphead notothenia are subject to selection ... during trawling, although the effectiveness of this process- especially in the latter case- is not ... tendency to pass through meshes of the codend than Antarctic icefish and bumphead notothenia. 3. The ...
Meeting Document : SC-CAMLR-VII/BG/11 : Author(s): J. Zaucha (Poland)
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Congruent, decreasing trends of Gentoo Penguins and Crozet Shags at sub-Antarctic Marion Island suggest food limitation through common environmental forcing
] melanogenis breeding annually at Marion Island, one of South Africa’s Prince Edward Islands in the south-west ... between the mid-1990s and the mid-2000s, exhibited a partial recovery in the late-2000s and then decreased ... to their lowest recorded levels in 2012/13. In both instances, the partial recoveries in the late ... was negatively correlated with the date of arrival of adults to breed. Gentoo Penguins and Crozet ...
Meeting Document : WG-EMM-14/P09 Rev. 1 : Author(s): R.J.M. Crawford, B.M. Dyer, L. Upfold and A.B. Makhado
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Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015
. This report describes the recent fishing and data collection activities in the fishery. The fleet has ... enhance the tagging program that was established in 1998, the fleet has increased tagging rate in this ... Division from 2 tags/3 tonnes to 2 tags/tonne. Tag overlap statistics across the fleet have been ... , considerably adding to information on the structure of the population. The ageing program at AAD has produced ...
Meeting Document : WG-FSA-15/55 : Author(s): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)
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Annotated bibliography: seabird interactions with trawl fishing operations and cooperative research
Abstract: We briefly summarize the available literature (17 documents) on the nature of seabird ... interactions with trawl gear, efforts to date on the development of technologies to prevent these interactions ... , and management imperatives affecting the Alaska trawl fleet. We also summarize available literature on ... cooperative research with the fishing industry (2 documents). The purpose of this review was to bring this ...
Meeting Document : WG-FSA-04/47 : Author(s): K. Dietrich and E. Melvin (USA)
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Results of a hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1 carried out in January to April 1996
CCAMLR Division 58.4.1 for the purposes of estimating overall biomass (B0). The krill biomass in the area ... in the west of the survey area 800-1200E than in the 120°-150°E region. The majority of the krill ... detected were found in the top 80 metres of the water column. Author(s): Higginbottom, I., de la Mare, W ...
Meeting Document : WG-EMM-96/28 : Author(s): Higginbottom, I., de la Mare, W., Pauly, T., Nicol, S.
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Copyright Notice
This website and its content is copyright of The Commission for the Conservation of Antarctic ... or all of the contents in any form is prohibited other than the following: you may print or download ... to a local hard disk extracts for your personal and non-commercial use only you may copy the content ... to individual third parties for their personal use, but only if you acknowledge the website as the ...
Page : Site Section: The Organisation
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Fishing for structure; can we describe normal patterns in toothfish fishing operations using catch and effort data?
Abstract: We describe the typical steps involved in demersal longline fishing operations for ... toothfish in CCAMLR fisheries and link those steps to the variables recorded as part of the CCAMLR catch and ... effort data reporting system. We then describe statistical properties of the recorded variables and how ... more difficult to evaluate given the wide range of influences that may affect recorded values for a ...
Meeting Document : WG-FSA-16/36 : Author(s): J.M. Fenaughty and K. Large
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Krill fishery report: 2007 update
Abstract: As reported to the CCAMLR Secretariat, 5 vessels from 3 Contracting Parties are fishing ... for krill in Area 48 in the 2006/07 season, and these vessels have taken 61876 t of krill to date. Two ... CCAMLR scientific observers have been deployed. The preliminary estimate of the total catch of krill for ... the season is approximately 111746 t. This compares with 106589 t of krill reported in the STATLANT ...
Meeting Document : WG-EMM-07/05 : Author(s): Secretariat
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A nonparametric algorithm to model movement between polygon subdomains in a spatially explicit ecosystem model
part of the modelling effort. In marine applications, a flow field grid describing the water movement ... usually forms the basis for movement of passive or nearly passive biomass. Grid-based advection algorithms ... are not designed to model movement on the larger scale of polygons, resulting in disproportionately ... effective algorithm to model movement at the polygon level is proposed, preserving the general properties of ...
Meeting Document : WG-EMM-06/35 : Author(s): T. Lenser and A. Constable (Australia)