Resultados de la búsqueda
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FISHING ACTIVITY AND SEABIRD-VESSEL ATTENDANCE NEAR THE NORTHERN ANTARCTIC PENINSULA
Abstract: We conducted a survey to investigate the factors influencing the number of seabirds ... attending a research vessel during scientific trawling activities near the northern Antarctic Peninsula. Our ... fishing activity. Counts of seabirds attending the vessel were made during non-fishing periods, net ... seabird attendance. Three species, the Black-browed Albatross Thalassarche melanophrys, Cape Petrel ...
Meeting Document : WG-FSA-08/11 : Autor(es): Jarrod A. Santora and Kimberly S. Dietrich (USA) and Darci Lombard (Canada)
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Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony
Abstract: The diet of the Antarctic petrel Thalassoica antarctica was studied during two years at ... Svarthamaren, an inland colony situated in Dronning Maud Land, Antarctica and in the pack-ice outside ... Svarthamaren. The analyses showed that the most important food (wet weight) at Svarthamaren was Crustaceans (68 ... %), followed by fish (29%) and squid (3%), whereas individuals collected in the pack ice took mostly fish (95 ...
Meeting Document : WG-EMM-97/58 : Autor(es): Røv, N., Lorentsen, S., Klages, N.
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Distribution of salps near the South Shetland Islands during austral summer, 1990/1991 with special reference to krill distribution
investigated near the South Shetland Islands during austral summer 1990-1991. Salp biomass ranged between 0 and ... 556 mgC•m-3 and was greatest at a station in the Bransfield Strait in late December 1990. Salp biomass ... found, and the former was dominant numerically. Spatial distribution and generation composition of these ... so the January-February period. While E. superba was found mainly in the coastal area which showed ...
Meeting Document : WG-EMM-95/54 : Autor(es): Terazaki, M., Ichii, T., Kawaguchi, K., Nishikawa, J., Ishii, H., Naganobu, M.
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Pilot study on electrophoretic variation and stock structure in the mackerel icefish, Champsocephalus gunnari, South Georgia waters
Abstract: The use of allozymes as a tool in stock structure analysis was examined in the ... . Clearly resolved enzyme phenotypes were obtained at 18 loci, of which 7 exhibited polymorphism at the 0.95 ... ; phosphoglucose mutase, PGM-II 2.7.5.1; pyruvate kinase, PK 2.7.1.40). Routine scoring of 116 fish at the 18 loci ... revealed average levels of genetic variability, with the proportion of polymorphic loci, P = 0.278, mean ...
Meeting Document : WG-FSA-90/10 : Autor(es): G.R. Carvalho and D.P. Lloyd-Evans (United Kingdom)
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Fish prey of the wandering albatross Diomedea exulans at South Georgia
Abstract: The fish diet (45% of total diet by weight) of Wandering Albatrosses rearing chicks at ... South Georgia during the austral winters of 1983 and 1984 was investigated using otoliths retrieved from ... regurgitations. These provide the first quantitative data for this species and for any albatross. By number of ... (estimated from otolith length) of the main species was Pseudochaenichthys 51%, Muraenolepis 14 ...
Meeting Document : SC-CAMLR-VII/BG/05 : Autor(es): J.P. Croxall, A.W. North and P.A. Prince (United Kingdom)
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Estimation of the green weight of krill caught
Abstract: Vessels operating in the krill fishery in CCAMLR’s Convention Area have been required ... to directly estimate the green weight of krill caught since 2012/13. The estimation methods were ... parameter values are reported in each vessel’s haul-by-haul catch and effort data. This paper reviews the ... data reported in 2013/14 (to May 2014). Vessels fishing in 2013/14 used six methods for the direct ...
Meeting Document : WG-EMM-14/29 : Autor(es): Secretariat
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Report of the Second International Workshop for identifying Marine Protected Areas (MPAs) in Domain 1 of CCAMLR (Palacio San Martín, Buenos Aires, Argentina, 25 to 29 May 2015)
Abstract: This report presents the results of the Second International Workshop for identifying ... Marine Protected Areas (MPAs) in Domain 1 of CCAMLR. The workshop was held in Buenos Aires, Argentina ... , from 25 to 29 May 2015. During the workshop, discussions were concentrated in reviewing and analyzing ... ), important areas for zooplankton life cycles (krill nurseries), and whales distribution during the non ...
Meeting Document : WG-EMM-15/42 : Autor(es): Second WS-MPA Domain 1
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An idea to incorporate potential recruitments in the krill density model
involved uncertainties of age 1 krill. Present document improves the model by taking the uncertainties in ... to account, and assuming a reasonable mortality. The model suggested that if we expect the currently ... accepted values of mortality M (0.8-1.0), the potential proportional recruitment should be larger than the ... in the model, dramatic variation of densities after 1994/95 season could not be clearly explained ...
Meeting Document : WG-EMM-99/51 : Autor(es): S. Kawaguchi and M. Naganobu (Japan)
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Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica, January – February 1987
Abstract: Surveys of the South Shetland Islands, Antarctica in 1987 provided data on the size and ... location of penguin and Antarctic Blue-eyed Shag colonies and the breeding status of other seabirds. Our ... estimate of 1,618,370 to 2,084.570 breeding Chinstrap Penguins, the most abundant penguin in the study area ... . is two to three times the previous estimate. Other seabird species were also found to be more ...
Meeting Document : SC-CAMLR-VI/BG/19 : Autor(es): W.D. Shuford and L.D. Spear (USA)
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New data on trematodes (Plathelminthes, Trematoda) of fishes in the Ross Sea (Antarctic)
Abstract: Records of 14 trematode species, collected from bottom fishes from the western and ... northern parts of the Ross Sea, are given. Trematodes Otodistomum cestoides van Beneden, 1871, Lecithaster ... . are recorded from the Ross Sea for the first time. Proctophantastes sp. differs from other species of ... Proctophantastes Odhner, 1911 by the morphology of the ventral equatorial ridge of the ventral sucker. Author(s ...
Meeting Document : WG-EMM-14/P08 : Autor(es): S.G. Sokolov and I.I. Gordeev