Search results
-
Progress report on the Weddell Sea Research Program Stage II
Abstract: Results of longline survey on Antarctic toothfish in the Weddell Sea (Stage II) are ... presented in the paper. Options I and II of the survey were carried out from February 10 to February 22 ... , 2014. A total of 34 longlines were set: the Option I – 10+20 and the Option II – 4 at the depths ... ranging from 605 to 2031 m. A total number of hooks – 116 100, area – 13565 km 2. Catch value of the ...
Meeting Document : WG-SAM-14/05 : Author(s): A.F. Petrov, I.I. Gordeev, S.V. Pianova and E.F. Uryupova (Russia)
-
Reporting procedures for the continuous fishing method
Abstract: Information about catch and effort from the fishing fleet is vital for evaluation of ... the management of krill. The continuous trawling method requires adapted reporting procedures compared ... to traditional trawling. The present reporting procedure of 2-hour intervals has demonstrated ... imprecise and with some systematic errors in positioning the catch. In previous EMM meeting we proposed ...
Meeting Document : WG-EMM-17/48 : Author(s): O.R. Godø and T. Knutsen
-
Draft Research and Monitoring Plan for the South Orkney Islands southern Shelf Marine Protected Area (MPA Planning Domain 1, Subarea 48.2)
Abstract: This paper aims to advance the dialogue about the development of a revised Research and ... Monitoring Plan (RMP) for the South Orkney Islands southern shelf (SOI SS) MPA in order to further the ... harmonisation of CM 91-03 and CM 91-04, whilst recognising and aiming to contribute to the wider context of the ... MPA planning processes in Domain 1, and as appropriate, Domain 3. The proposed framework sets out the ...
Meeting Document : SC-CAMLR-XXXVII/09 : Author(s): Delegation of the European Union
-
Some components of uncertainty in the CCAMLR 2000 acoustical survey of krill
Abstract: Quickly studied and quantified were sources of uncertainty in the CCAMLR 2000 ... acoustical estimate of krill abundance in FAO statistical area 48. The variance in system calibration was ... evaluated in relation to the effects of variant water temperature and salinity on sound speed, sound ... and orientations. The uncertainty in species delineation was also investigated through the same ...
Meeting Document : WG-EMM-00/49 : Author(s): D.A. Demer (USA)
-
QUANTIFYING MOVEMENT BEHAVIOUR OF VESSELS IN THE ANTARCTIC KRILL FISHERY
Abstract: Ten years of recent finescale haul-by-haul krill data were used to characterize the ... behaviour of the krill fishery. Analysis of distance between hauls in relation to their catch level revealed ... 10 t per haul, and the travel distance decreased as the catch level increased; this pattern was most ... longer distances moved between hauls in Area 48.1 compared to 48.2 and 48.3 reflecting the large number ...
Meeting Document : WG-EMM-09/P05 : Author(s): S. Kawaguchi and S.G. Candy
-
Fish as diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at Half-Moon Island, South Shetland Islands
Shetland Islands, during January and February 1993, were analyzed to determine the importance of fish in ... the diet of the blue-eyed shag Phalacrocorax atriceps bransfieldensis. Fish species were identified by ... means of otoliths found in the casts. The size and weight of the fish were estimated from the otolith ... , comprising 91% of prey items. From the 937 otoliths found, 562 fish were represented and 524 were assigned to ...
Meeting Document : WG-CEMP-94/32 : Author(s): E.R. Barrera-Oro and R.J. Casaux (Argentina)
-
Information report on the age determination methods of toothfish Dissostichus spp.
Abstract: The document presents the experience of the age determination of toothfish of the genus ... Dissostichus by recording structures (otoliths). Sampling processing is carried out on the basis of annual data ... collected in the CCAMLR Convention Area. The equipment used, the procedure for processing and reading age ... are described. The achieved volumes and results are given. And also the problems that arose and the ...
Meeting Document : WG-SAM-18/29 : Author(s): I.V. Slypko and P.M. Zabroda
-
Underwater noises produced by research vessels (some comments on acoustic sampling protocol for the Area 48 synoptic survey
Abstract: The underwater vessel noise levels perceived by the echosounder EK-500 transducers of ... three Russian research vessels have been presented. These data have been compared to the estimate of the ... underwater noise level, produced by the Icelandic R/V B.Saemundsson.. Underwater noise level perceived by the ... that the level of underwater noise produced by vessel is an important technical property to be taken ...
Meeting Document : WG-EMM-99/18 : Author(s): S. Kasatkina (Russia)
-
Seasonal variation in the diet of Arctocephalus gazella at 25 de Mayo/King George Island, South Shetland Islands, Antarctica
Abstract: The trophic study of Arctocephalus gazella is an essential tool for assessing its ... ecological role as a top predator of the Antarctic marine ecosystem. The aim of this study was to analyse its ... diet during an annual cycle. To our knowledge, this is the first report of the feeding habits of A ... . gazella during the winter period in the South Shetlands area. A total of 224 scats were collected in the ...
Meeting Document : WG-EMM-15/37 : Author(s): A. Harrington, G.A. Daneri, A.R. Carlini, D.S. Reygert and A. Corbalán (Argentina)
-
Theoretical considerations for estimating the density of cohorts and mean recruitment of Patagonian toothfish (Dissostichus eleginoides) based on research trawl survey data
Abstract: The current method used by the Working Group on Fish Stock Assessment (WG-FSA) for ... assessing the long-term yield for toothfish fisheries in CCAMLR uses estimates of density of juvenile ... toothfish derived from research trawl surveys as an estimate of absolute abundance of recruitment to the ... fishery. At the 2003 meeting of WG-FSA a number of inconsistencies were identified in the estimation of ...
Meeting Document : WG-FSA-04/92 : Author(s): C.R. Davies, E.M. van Wijk and A.J. Constable (Australia)