Search results
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On the problem of fish tagging
Abstract: Data on bottom trawl catch of tagged fish are presented as well as results of tagging ... of some Antarctic fish in Subarea 88.1. Use of marked trawl hooks as an additional method of fish ... tagging is proposed for discussion. Author(s): V.G. Prutko (Ukraine) Title: On the problem of fish ...
Meeting Document : WG-FSA-03/50 : Author(s): V.G. Prutko (Ukraine)
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Preliminary results on the diet of the snow petrel Pagodroma nivea at Laurie Island, Antarctica, during the 1997/98 breeding season
Abstract: The diet of the Snow Petrel Pagodroma nivea was investigated at Laurie Island, South ... Orkney Islands, (60¡46'S, 44¡42'W), Antarctica, over the period January-February of 1998 ... . Stomach contents and regurgitates of adults were sampled during the chick-rearing period. Fish, followed ... further studies on the composition of the diet of the Snow Petrel as well as on the distribution and ...
Meeting Document : WG-EMM-00/11 : Author(s): G. Soave, V. Ferretti, N. Coria and R. Casaux (Argentina)
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A comparison between the estimated density of krill from an acoustic survey with that obtained by scientific nets on the same survey
Abstract: This work presents the initial comparative analysis of acoustic and net haul krill ... part of a hydroacoustic biomass survey for Antarctic krill in CCAMLR Division 58.4.1. The acoustic ... found between the two data sets. Several orders of magnitudes were seen in the range of variation ... , excluding sites where krill represented less than 90% of the catch. This reduction in variation was thus ...
Meeting Document : WG-EMM-97/43 : Author(s): Pauly, T., Higginbottom, I., Hosie, G., de la Mare, W.K., Nicol, S.
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On the accuracy of the pellet analysis method to estimate the food intake in the Antarctic shag Phalacrocorax bransfieldensis
Abstract: The accuracy of correction factors estimated to compensate the digestion and loss ... through the gastrointestinal tract of the otoliths of fish represented in pellets of the Antarctic Shag ... Phalacrocorax bransfieldensis was tested at two localities of the South Shetland Islands. F or such purpose, the ... results from the analysis of 226 and 115 pellets collected at Harmony Point and at Duthoit Point ...
Meeting Document : WG-EMM-97/61 : Author(s): Casaux, R.
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Results of the longline survey for toothfish in the northern Ross Sea region (SSRU 88.2A) by the FV Seljevær, Norway
fishable areas of SSRUs 88.2 A–B north of 66° S latitude. During the 5 th- 7 th February 2015, the ... release tagged fish and collect information on the characteristics of the toothfish inhabiting the region ... . The vessel had a technical failure with the echosounder and bathymetry data are of low quality. The ... catch of 11 t of D mawsoni and 33 tagged fish released at 3.1 fish tagged per ton. Author(s ...
Meeting Document : WG-SAM-15/42 : Author(s): Delegation of Norway
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An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths
Abstract: To examine consistency between laboratories in age estimation of Patagonian toothfish ... , then grinding from the anterior and posterior sides of the otolith. Ages were estimated from the ... one reader from the National Institute of Water and Atmospheric Research, without auxiliary ... information: the readers generally read the sections similarly, with 84.7% of the estimates falling within two ...
Meeting Document : WG-FSA-99/56 : Author(s): J. Ashford (United Kingdom) and P. Horn (New Zealand)
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Diet composition of Dissostichus eleginoides in Subarea 48.3, Dr Eduardo Holmberg survey March/April 1996
Abstract: A diet analysis of the patagonian toothfish Diissostichus eleginoides in the Subarea ... 48.3 in March/April 1996 was carried out by frequency of occurrence (F%) and coefficient "Q" ... ; (%) methods. The samples consisted chiefly of immature specimens, with predominant length ranges of 30-70 cm ... , although its importance was overestimated by the frequency of occurrence method. Cephalopods and mysids ...
Meeting Document : WG-FSA-96/29 : Author(s): Barrera-Oro, E., Marschoff, E., Casaux, R.
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Entanglement of Antarctic fur seals in man-made debris at Bird Island, South Georgia
Abstract: The incidence of entanglement of Antarctic fur seals (Arctocephalus gazella) in Man ... -made debris at Bird Island, South Georgia, was monitored throughout the austral winter and summer of ... 1991 as part of an on-going study by the British Antarctic Survey. Only seven seals were observed ... incidence of entanglement during the pup-rearing period was slightly higher than in the previous year (48 ...
Meeting Document : SC-CAMLR-XI/BG/09 : Author(s): Delegation of United Kingdom
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Accumulation of fishing debris, plastic litter and other artefacts on Heard Island and Macquarie Island, Southern Ocean
Abstract: Sections of coastline of Heard and Macquarie Islands were surveyed for marine debris in ... summer 1987-88, and 1989 respectively. These surveys were carried out at the same sites of previous ... surveys in 1986-87 at Heard Island, and 1988 at Macquarie Island. The minimum rate of artefact ... catchment area. Plastic litter was a major component of the debris at both islands. Fisheries related debris ...
Meeting Document : CCAMLR-VIII/BG/11 : Author(s): D.J. Slip and H.R. Burton (Australia)
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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 ... the methods of otolith readings by experienced readers of AAD. One of these is that the first ring was ... generally identified within the primordium and thus many of age counts were overestimated. We would recount ...
Meeting Document : WG-FSA-10/48 : Author(s): K. Taki, M. Kiyota and T. Ichii (Japan)