Search results
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Analysis of krill catch data from continuous and conventional trawls by the Saga Sea and Atlantic Navigator
Abstract: In this paper we analyse data on the distribution of catches, the size of krill and ... bycatch of larval fish taken by the Saga Sea fishing with continuous trawls in 2006, and the Atlantic ... Navigator which fished in 2005 using both continuous trawling and conventional trawling. The sizes of krill ... are few data for comparison, the bycatches of larval/juvenile fish in the continuous trawl also appear ...
Meeting Document : WG-FSA-06/57 : Author(s): D.J. Agnew, A. Payne, J. Hooper and J. Roe (United Kingdom)
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The preliminary report on the survey in Subarea 48.2 in 2017 (the third year of the planned 3-year-old investigations)
Abstract: The third year survey and observations of Dissostichus spp. in statistical subarea 48.2 ... on board the Ukrainian vessel SIMEIZ were conducted in accordance with the recommendations of the ... one of the second year and approved by WGs SAM, FSA and SC CCAMLR. Obtained data will be used for the ... future biomass estimation of the target species and making decision for the future fishing on that ...
Meeting Document : WG-SAM-17/25 : Author(s): Delegation of Ukraine
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The preliminary report on the survey in Subarea 48.2 in 2018 (the fourth year of the planned 5-year-old investigations)
Abstract: The fourth year survey and observations of Dissostichus spp. in statistical subarea ... 48.2 on board the Ukrainian vessel SIMEIZ were conducted in accordance with the recommendations of the ... the one of the second year and approved by WGs SAM, FSA and SC CCAMLR. Obtained data will be used for ... the future biomass estimation of the target species and making decision for the future fishing on that ...
Meeting Document : WG-SAM-18/28 : Author(s): Delegation of Ukraine
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Progress report on collaborative research for otolith chemistry of Antarctic toothfish Dissostichus mawsoni in the Southern Ocean
Abstract: Otolith chemical analysis is one of important and useful approaches to reveal the stock ... structure and connectivity of Dissostichus mawsoni in the Southern Ocean. Recalling the suggestion from WG ... -FSA 2018 about the international collaboration on otolith microchemistry of D. mawsoi, this progress ... report summarized the update of this work. The result indicated that the heterogeneity in stock structure ...
Meeting Document : WG-FSA-2019/61 : Author(s): G.P. Zhu
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Some comments on the procedure of krill target strength assessment in echosurveys
Abstract: The impact of midwater trawl selectivity and catchability upon TS and TS 1 kg estimates ... . Application of the proposed method of mean weighted TS 1 kg estimation provides the biomass estimation ... : assessment of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study ... area. The latter requires to settle a complex of problems which allow to consider the trawl as a ...
Meeting Document : WG-EMM-98/21 : Author(s): S.M. Kasatkina (Russia)
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A toolbox of Marine Protected Area management techniques for the area covered by the Antarctic Treaty and by CCAMLR
considerable expertise on their identification, establishment, and management. A global review of MPA ... highlighted the variety of possible ways to help achieve the objectives of MPAs. The main tools which are ... “toolbox”. Some of these management techniques have been adapted from terrestrial situations while others ... are novel and are unique to the marine environment. The tools are presented as a range of approaches ...
Meeting Document : WS-MPA-11/21 : Author(s): WWF and UK Foreign and Commonwealth Office
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Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area
taxonomy of the group is needed and the number of species is uncertain. The few biological studies ... published suggest a relatively fast growing, semelparous, life history with a maximum age of 11 years. The ... estimate of K from the growth function for specimens assumed to be M. evseenkoi is much higher than for ... localised area of high catch rates occurs on Iselin Bank on Ross Sea slope. However, effects of fishing on ...
Meeting Document : WG-FSA-12/50 : Author(s): S. Parker, P. McMillan and P. Marriott (New Zealand)
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First global census of the Adélie penguin
Abstract: We report on the first global census of the Adélie Penguin (Pygoscelis adeliae ... ), achieved using a combination of ground counts and satellite imagery, and find a breeding population 53 ... report on 17 previously unknown colonies. We think 11 of these previously unknown colonies may be recent ... colonizations. These recent colonizations represent approximately 5% of the increase in known breeding ...
Meeting Document : WG-EMM-14/P05 : Author(s): H.J. Lynch and M.A. LaRue
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric parameter?
sex of individuals, it is only able to correctly sex a certain proportion of birds. Two overlapping ... functions are able to correctly determine the sex of birds with greater than 80% success the difference ... . Combining all data for both sexes is considered as a procedure for avoiding the necessity of sex ... determination, but uncertainty in sex ratios can lead to considerable Type I and Type II errors. Lack of ...
Meeting Document : WG-CEMP-92/11 : Author(s): D.J. Agnew (Secretariat)
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Observations of penguins in the waters off South Orkney Islands, 2011–2013
Abstract: In this study, we introduce the initial results from three seasons (2011-2013) of ... transect lines during five consecutive days within late January and early February. Three species of ... average number of penguins observed per hour increased from year to year, with 7.8 ind/hour in 2011, 32.8 ... the differences in study design, density of prey resources and relevant physical factors. This study ...
Meeting Document : WG-EMM-13/35 : Author(s): B.A. Krafft, G. Skaret (Norway) and P. Trathan (United Kingdom)