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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 : Автор(ы): J. Ashford (United Kingdom) and P. Horn (New Zealand)
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IMPROVING ESTIMATES OF ADÉLIE PENGUIN BREEDING POPULATION SIZE: DEVELOPING FACTORS TO ADJUST ONE-OFF POPULATION COUNTS FOR AVAILABILITY BIAS
priority for future work. This paper reports on the collection and development of adjustment factor data ... Abstract: It is widely recognised that the interpretation of counts of penguin populations at ... times within a breeding season to minimise bias in estimates of the breeding population has long been ... the collection of adjustment data. This was recognised at the recent Predator Survey workshop, where ...
Meeting Document : WG-EMM-09/38 : Автор(ы): C. Southwell, J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery (Australia)
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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 : Автор(ы): Barrera-Oro, E., Marschoff, E., Casaux, R.
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By-catch in the longline fishery along the shelf slope of Kerguelen (Division 58.5.1) during the 1994/95 and 1995/96 cruises
Abstract: By-catch was observed during two successive cruises of longliners fishing for ... of Kerguelen. By-catch consisted mainly of Rajidae Bathyraja spp. (85 %). The proportion of species ... taken in the by-catch was low (less than 0.75%) and does not represent a problem at the present level of ... fishing. The results indicate that longlining therefore is a highly target-specific method of fishing in ...
Meeting Document : WG-FSA-96/11 : Автор(ы): Capdeville, D., Duhamel, G.
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CPUES and body length of Antarctic krill during 1993/94 season in the fishing grounds around the South Shetland Islands
. Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... , and the west of Elephant Island from April to May. CPUEs showed the highest values at the height of ... summer (early February- early March) in the north of Livingston Island, and April at the west of Elephant ... Island. Krill with a modal length of 41-45mm were dominant in catches, almost same as the previous season ...
Meeting Document : WG-EMM-95/51 : Автор(ы): Kawaguchi, S., Ichii, T., Naganobu, M.
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Polish krill fishery in the 1991/92 and 1992/93 seasons results of catches and biological investigations
, attained in the 1992/1993 season. The report presents an analysis of Polish krill catches in the 1991/1992 ... and 1992/1993 seasons. CPUEs by month in individual subareas of the Atlantic sector of the Antarctic ... were calculated. The results of biological investigations of krill on the fishing grounds of the South ... ) Title: Polish krill fishery in the 1991/92 and 1992/93 seasons results of catches and biological ...
Meeting Document : WG-Krill-94/09 : Автор(ы): J. Sosinski and Z. Cielniaszek (Poland)
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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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): K. Taki, M. Kiyota and T. Ichii (Japan)
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Indexing maturation of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region
and 88.2 have provided more than a decade of observations to aid in understanding the life history and ... ecology of toothfish. Updated spawning ogives for males and females support the currently used values ... . Using histological samples, a summer GSI threshold of 1% appears to be a good indicator of vitellogenic ... upcoming season. Observations of post-spawning fish on the slope indicate that some females either spawn on ...
Meeting Document : WG-FSA-12/40 : Автор(ы): S. Parker and P. Marriott (New Zealand)
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