Search results
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Feasibility of lead-radium dating the otoliths of blackfin icefish (Chaenocephalus aceratus) and ocellated icefish (Chionodraco rastrospinosus)
otoliths from these fishes were small and the number of otoliths available low, a whole otolith application ... was necessary as a first look at lead-radium levels. The application was successful as a first step in ... determining the parameters of future applications that would lead to a validation of age. In the current study ... , sample mass for the pooled otolith samples was low (~0.4 g). This finding, coupled with low radium-226 ...
Meeting Document : WG-FSA-10/17 : Author(s): A.H. Andrews, M. La Mesa and J. Ashford (USA)
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Executive Secretary’s Report, 2018, including Fourth Year Implementation Report for the Secretariat’s Strategic Plan (2015–2018)
Abstract: This report is the last of four describing the activities of the Secretariat under the ... 2015–2018 Strategic Plan. Highlights of the year are presented, which include the development of a new ... Strategic Plan for the next 4 years 2019–2022. Future reports will be against the format of the new ... Year Implementation Report for the Secretariat’s Strategic Plan (2015–2018) Microsoft Word File: e-cc ...
Meeting Document : CCAMLR-XXXVII/05 : Author(s): Executive Secretary
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DEMOGRAPHIC STUDIES OF ANTARCTIC KRILL IN THE SOUTH ORKNEY ISLANDS AREA 2009, FIELDWORK AND PRELIMINARY RESULTS
(Euphausia superba) fishery with the vessel “ Saga Sea ” in the South Orkney Islands area. We present ... preliminary results regarding krill demography from the sampling period in January-March, 2009. Total body ... % adult males and ~64% adult females (overall adult sex ratio: 1:4). The proportion of immature krill was ... similar throughout the study period; whereas the proportion of males decreased and the female proportion ...
Meeting Document : WG-EMM-09/10 : Author(s): B.A. Krafft and G. Skaret (Norway)
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Preliminary studies on age and growth of Dissostichus eleginoides in the Ob-Lena Bank
Abstract: Preliminary studies on the age and growth of Dissostichus eleginoides sampled in the ... 2007/08 season in the Ob-Lena Bank were carried out. The ages of 214 of 3,013 fish sampled by Observers ... were estimated. The estimated ages ranged from 5 to 46 years for males and from 5 to 50 years for ... females. Five to eighteen years gave large contribution to the total age groups for both sexes. Females ...
Meeting Document : WG-FSA-10/48 : Author(s): K. Taki, M. Kiyota and T. Ichii (Japan)
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A review of tag-based stock assessments of the Antarctic toothfish Dissostichus mawsoni in Subarea 48.4
Abstract: The stock abundance of Antarctic toothfish in Subarea 48.4 is estimated using tag based ... mark-recapture analysis. During WG-FSA-14 the recommendation was made that the stock should move from ... the Petersen estimation method to the use of the Chapman bias corrected estimator; a correction ... specifically developed to reduce estimation bias in populations with low recaptures, a feature typical of the ...
Meeting Document : WG-FSA-15/44 : Author(s): N. Walker, M. Soeffker, V. Laptikhovsky and T. Earl (United Kingdom)
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Estimating prey consumption of the non-breeder component of an Adélie penguin population
Abstract: Estimating the consumption of prey by higher-order predators is a priority for WG-EMM ... as an element in CCAMLR’s ecosystem-based approach to management for the krill fishery in the ... recorded at the breeding colonies. However, recent work suggests that the size of the non-breeder component ... of an Adélie penguin population can be substantial compared with the size of the breeder population ...
Meeting Document : WG-EMM-17/12 : Author(s): L. Emmerson and C. Southwell
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Outline for year 2 of the 3-year longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
Abstract: This paper outlines the specific research objectives and plan to achieve them for the ... second year of an agreed 3-year longline survey, in the wider context of connecting the recently ... undertaken surveys in Subarea 48.2 with the established fishery in Subarea 48.4. The overall research ... distributions of benthic bycatch species. This paper reiterates the key points of WG-SAM-17/34, updates ...
Meeting Document : WG-FSA-17/45 : Author(s): M. Söffker and M. Belchier
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Gap analysis: comparing CCAMLR’s port state measures with those in the FAO Agreement on Port State Measures to Prevent, Deter and Eliminate Illegal, Unreported and Unregulated Fishing
Abstract: ASOC is submitting for the consideration of the Commission and of the Standing ... Committee on Implementation and Compliance (SCIC) the preliminary results of research conducted by the Pew ... Environment Group (PEG) to compare the port State measures established by ten Regional Fisheries Management ... Organizations (RFMOs) with the port State measures established by the FAO Port State Measures Agreement (PSMA ...
Meeting Document : CCAMLR-XXIX/BG/25 : Author(s): ASOC Observer
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THE STRUCTURE AND FUNCTIONING OF MARINE ECOSYSTEM IN ARGENTINE ISLANDS WATERS
Abstract: The long-term environmental monitoring has been provided the insight into the integral ... structure of marine ecosystem in a poorly investigated coastal area of Argentine Island Archipelago The ... structure and functioning of the local biota has a specific response of environmentally different involved ... toxic heavy metals. The pollution inhibits normal reproduction of Antarctic krill, the population ...
Meeting Document : WG-EMM-11/P5 : Author(s): E.Z. Samyshev
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PRELIMINARY RESULTS OF THE EXPERIMENT ON DEFINITION OF ANTARCTIC KRILL MORTALITY RATE IN FISHERY
out aboard Polish vessel Dalmor II according to the pattern submitted in paper SC-CAMLR-XXVIII/BG/10 ... . Approximately 230 to 130 kg of krill are percolated and punched through per an hour of trawling if the average ... catch per an hour of trawling is about 8 tons and towing speed is 2.6-2.7 knots. The key parameters of ... trawling which influence the value of the Antarctic krill mortality rate are: the trawl configuration and ...
Meeting Document : WG-EMM-11/15 : Author(s): L. Pshenichnov and K. Vyshniakova (Ukraine)