Résultats de la recherche
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Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.4
tonnes in 2019/20 and 2020/21 is consistent with the application of the CCAMLR harvest control rule ... Abstract: This paper describes an updated CASAL based assessment of Patagonian toothfish (D ... . eleginoides) in Subarea 48.4. The assessment data are updated with the observations for the 2017/18 season and ... fits. Stock projections indicate that the stock was at 67% of B 0 in 2018/19 and that a yield of 27 ...
Meeting Document : WG-FSA-2019/29 : Auteur(s): T. Earl and E. MacLeod
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands 1999/2000
seals wearing neck collars of man-made debris. One additional sighting was of an animal that had been ... second lowest recorded, a decrease of 20% compared to the previous year. At Bird Island, packaging bands ... Island,South Orkney Islands are reported for the 1999/2000 summer season. There were five sightingsof ... that the majority of fur seals arriving at Signy Island had been entangled for sometime and had likely ...
Meeting Document : SC-CAMLR-XIX/BG/03 : Auteur(s): Delegation of the United Kingdom
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Zooplankton target strength: volumetric or areal dependence?
acoustic backscattering on animal volume or area was tested by fitting regression lines for TS versus the ... cylindrical radius). The theoretical models chosen for this comparison were two versions of a high-pass bent ... ) nor this experiment directly accounted for animal orientations. Simulations using a Distorted Wave ... Born Approximation Model (Chu et al., 1993), indicated that animal behavior is an important factor in ...
Meeting Document : WG-Krill-94/13 : Auteur(s): D.A. Demer and L.V. Martin (USA)
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Fish prey of the wandering albatross Diomedea exulans at South Georgia
. It seems unlikely, therefore, that the albatrosses depend. greatly on the fishery for acquisition of ... regurgitations. These provide the first quantitative data for this species and for any albatross. By number of ... (35%), Muraenolepis microps (33 %) and Chaenocephalus acemtus (20%) predominated, with Notothenia ... caught in the commercial fishery there. However, two of the three main target species of this fishery in ...
Meeting Document : SC-CAMLR-VII/BG/05 : Auteur(s): J.P. Croxall, A.W. North and P.A. Prince (United Kingdom)
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Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997
biota, specially over individuals of A. gazella, and for this purpose we present as an annex to the ... document, a form for its completion by every Antarctic base, refuge, or camp present in the mentioned area ... results indicate that 45% of the entanglement material found in a total of 20 individuals (nine subadult ... males, four juvenile males, five females, and two pups) corresponded to plastic debris and synthetic ...
Meeting Document : SC-CAMLR-XVI/BG/33 : Auteur(s): Delegation of Chile
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Length-age composition of the Patagonian toothfish, Dissostichus eleginoides, from the Kerguelen Island area
this period were located in the west shelf area (48°30’- 49°30’S and 66°50’- 67°20’E). Total catch was ... concentrated in the north shelf area (47°10’- 47°30’S and 66°50’- 67°20’E). Total catch was about 5.2 x 103 ... fluctuate considerably, mean fish length was 76.0- 86.6 cm. Fish of two to 14 years old age groups were most ... abundant in catches, mean age was 8.2- 9.8 years. In the 1991/92 season fishing for the species was ...
Meeting Document : WG-FSA-92/08 : Auteur(s): V.G. Prutko and V.N. Chikov (Ukraine)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2013–14
12 years with a slight decline in the past two years. Length frequency distributions of Antarctic ... biological aspects and catch of Antarctic toothfish up to an including the 2014 season. In 2014, the Ross Sea ... of the fishery – the reason for this is unclear. There has been a slight reduction in mean age in ... recommended that additional otolith readings for this area are given a high priority. There was a marked ...
Meeting Document : WG-FSA-14/52 : Auteur(s): M. Stevenson, S. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Annual variation in breeding biology of gentoo penguins, (Pygoscelis papua) at Bird Island, South Georgia
-3.4 days. Chicks creched when 25-30 days old. and this varied between years. possibly related to food ... breeding population at Bird Island decreased by 20% and increased by 84% in successive years during the ... colonies, but for the whole island was very consistent over the three years: 0.45, 0.51 and 0.47. Overall ... -year period (1986-1988) at Bird Island, South Georgia, with particular reference to birds of known age ...
Meeting Document : WG-CEMP-90/38 : Auteur(s): T.D. Williams (United Kingdom)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1992 winter and 1992/93 pup-rearing season
winter an unprecedented number of 97 entangled seals were seen, a ten-fold increase on the previous two ... disturbing, particularly following two years of relatively low incidence. It cannot be accounted for by ... Abstract: Surveys of Antarctic fur seals entangled in man-made marine debris were carried out for ... males, the main element of the population seen ashore at Bird Island at this time of year. In the summer ...
Meeting Document : SC-CAMLR-XII/BG/06 : Auteur(s): Delegation of United Kingdom
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The toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2002/03: New Zealand vessel summary
six seasons in Subarea 88.1 and for two seasons in Subarea 88.2. A large amount of data on both ... Abstract: An exploratory fishery for Antarctic toothfish (D. mawsoni) has been in operation for ... addition, SSRU 882E was fished for the first time. Ninety-two fine scale rectangles (FSRs), including 57 ... 2002 and 2003 were scaled up to the catch for each year. Also age, growth, and maturity data were ...
Meeting Document : WG-FSA-03/44 : Auteur(s): M.L. Stevenson, S.M. Hanchet and P.L. Horn (New Zealand)