Search results
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A proposal for a Krill Ageing Inter-laboratory Calibration Workshop
Abstract: The Working Group stressed the urgency of standardising ageing method for krill ... recruitment index, the parameters for a GYM to estimate a sustainable yield (γ) (WG-EMM-19 Report Para 4.27 ... ). The WG-EMM 2019 recommended that the Scientific Committee identify resources to support a workshop to ... the draft terms of reference and the budget for the Krill Ageing workshop as described in this paper ...
Meeting Document : SC-CAMLR-38/13 : Author(s): Delegations of Australia, China, Japan, Norway and the USA
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AGE AND GROWTH OF SPINY ICEFISH, CHAENODRACO WILSONI REGAN, 1914, OFF JOINVILLE-D'URVILLE ISLANDS (ANTARCTIC PENINSULA)
January 2007. A total of 218 specimens were selected for the study, consisting of 120 females and 98 males ... . The age of fish was estimated by counting annuli on transverse sections obtained by grinding and ... polishing whole otoliths embedded in epoxy resin in moulds. The precision of age estimates between readings ... was tested applying both the average percent error (APE) and the coefficient of variation (CV). The ...
Meeting Document : WG-FSA-08/33 : Author(s): M. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany)
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Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys
of Antarctic sighting cruises for whale assessment purposes organized by the International Whaling ... Commission Scientific Committee (IWC SC) in the context of the research programs ‘International Decades of ... . The density indices in both subareas suggested that humpback and fin whales were more frequently ... of importance for management of krill under the FBM. The first is the development of the stock ...
Meeting Document : WG-EMM-16/26 : Author(s): L.A. Pastene and T. Hakamada
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Large-scale oceanographic fluctuations drive Antarctic petrel survival and reproduction
climate variability. Using global climate indices that are known to impact the Southern Ocean ecosystem ... (the El Niño Southern Oscillation and Antarctic Oscillation Indices) we assessed their e cacy to ... predict variation in the demographic parameters of Antarctic seabirds. First, we used a long-term dataset ... alassoica antarctica, from the largest known breeding colony (Svarthamaren, Dronning Maud Land) and examined ...
Meeting Document : WG-EMM-16/P14 : Author(s): S. Descamps, A. Tarroux, S.-H. Lorentsen, O.P. Love, Ø. Varpe and N.G. Yoccoz
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RESOURCES EVALUATION OF ANTARCTIC KRILL EUPHAUSIA SUPERBA DANA USING AREAL TRAWLING AND HYDRO-ACOUSTIC DATA
analyses procedures applied for trawling and hydro-acoustic sampling have to in compliance with the rules ... of statistical distribution and principles of metrology. Division of natural habitat of the Antarctic ... krill into regions is based on a principle of equal probability applied for congestions instead of the ... revealed. Standard measures for the population densities of krill in natural habitat are not available ...
Meeting Document : WG-SAM-08/P01 : Author(s): L.A. Kovalchuk (Ukraine)
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CCAMLR environmental protection measures
Abstract: Following Resolution 1 (2004) adopted at the Twenty-seventh Meeting of the ATCM, the ... Secretariat has prepared this paper to review all the environmental protection-related provisions of various ... CCAMLR Conservation Measures in force. The suggestion is made that there may be benefit in consolidating ... such provisions within a single measure insofar as they relate directly to the potential environmental ...
Meeting Document : CCAMLR-XXIII/33 : Author(s): Secretariat
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CCAMLR streamer line requirements revisited
Abstract: The streamer line has become the primary seabird mitigation device prescribed and used ... in most longline fisheries throughout the world, based to a large degree on the precedent set by ... CCAMLR in 1991. This discussion paper responds to the interest of the IMAF working group to consider ... possible revisions to the CCAMLR streamer line requirement. Existing literature on the effectiveness of ...
Meeting Document : WG-FSA-03/22 : Author(s): E.F. Melvin (USA)
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Transhipment implementation report
Abstract: The Secretariat receives notifications for transhipment activities within the ... Convention Area in accordance with Conservation Measure 10-09. The Secretariat maintains a list of all ... transhipment notifications on the password protected part of the website in accordance with CM 10-09 paragraph ... 5. This paper summarises the transhipment notifications received between 1 August 2018, and 31 July ...
Meeting Document : CCAMLR-38/BG/15 : Author(s): CCAMLR Secretariat
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IN SITU MEASUREMENTS OF TILT ANGLE DISTRIBUTION AND TARGET STRENGTH IN ANTARCTIC KRILL (EUPHAUSIA SUPERBA)
Abstract: Knowledge of the scattering properties of Antarctic krill (Euphausia superba) is ... crucial for biomass estimates of the species, but in situ investigations regarding this are still very ... scarce. We conducted a field study in the Southern Ocean where one of the objectives was to acquire data ... on orientation angles and target strength of Antarctic krill. The main investigations were done off ...
Meeting Document : WG-EMM-08/29 : Author(s): G. Skaret, S.A. Iversen, T. Knutsen, R.J. Korneliussen, E. Ona, R. Pedersen, A. Totland, T. Torkelsen (Norway) and X. Zhao (China)
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Revised selectivities for Dissostichus eleginoides taken by longliners in Subarea 48.3
selectivity curves for toothfish taken by longliners around South Georgia and Shag Rocks over the period 1995 ... selectivities for the years 1995 – 2000 for input to the GYM assessment. In this paper, I propose a revised ... method for estimating the selectivities based on an assumption that the proportions of the total CPUE in ... . This removes some of the ad hoc nature of the former estimation method. The method is illustrated by ...
Meeting Document : WG-FSA-02/64 : Author(s): G.P. Kirkwood (United Kingdom)