Resultados de la búsqueda
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Demography and population trends of the Atlantic yellow-nosed albatross
both study populations have trended downward at around 1.2% per year. The number of established ... breeders on Gough Island has declined more rapidly, and significantly, at an annual rate of 2.3 ... Abstract: The Atlantic Yellow-nosed Albatross (Thalassarche chlororhynchos) breeds only at the ... of breeding birds was strongly correlated between the two islands, and over the whole study period ...
Meeting Document : WG-FSA-03/37 : Autor(es): R. Cuthbert (United Kingdom), P.G. Ryan, J. Cooper (South Africa) and G. Hilton (United Kingdom)
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How similar are CEMP indices from adjacent locations? A case of study using Pygoscelis adeliae and P. papua monitoring data from three breeding colonies on King George Island
Abstract: What is the spatial scale of monitoring conducted at an individual CCAMLR Ecosystem ... species that are monitored at three sites on King George Island/Isla 25 de Mayo, within 30km of one ... another. We used five indices that fall under three main categories of census (breeders and chicks ... across sites in census data, implying similar information is being collected at all three sites. We also ...
Meeting Document : WG-EMM-14/43 : Autor(es): M.M. Santos (Argentina), M. Korczak-Abshire (Poland), M.A. Juáres (Argentina), W.Z. Trivelpiece and J.T. Hinke (USA)
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SUMMARY OF SCIENTIFIC OBSERVATIONS RELATED TO CONSERVATION MEASURES 24-02 (2008), 25-02 (2009), 25-03 (2009) AND 26-01 (2009)
retained or incinerated. All other types of packaging bands were either retained on board for disposal at ... , being intentionally disposed of at sea (Table 1). There were reports of unintentional gear loss. 4 ... being discarded at sea were reported (Table 1). 6. Long-term, land-based, monitoring of marine debris ... seabird conservation”, 25-02 (2009) “Minimisation of the Incidental Mortality of Seabirds in the Course of ...
Meeting Document : WG-FSA-10/08 : Autor(es): Secretariat
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Notothenia (p.) gibberifrons Stock Status and TAC Estimation in the Area of Shag Rocks (Subarea 48.3)
not taken into consideration). Of all these methods adjustments of F using the regression equation at ... ) Fishing intensity in the predicted period is at the level of 1987/88; c) Fishing intensity in the ... thousand tons. The analysis of estimations demonstrates that at the current level of fishing (1987/88) the ... Abstract: Data on age composition of catches and fishing efforts for 1979/80- 1987/88 were used ...
Meeting Document : WG-FSA-88/33 : Autor(es): R. Borodin and K. Shust (USSR)
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The relative impacts of Autolines and Spanish longlines on vulnerable marine ecosystems
bycatches and the amounts of positive bycatch decreased with depth, but we also found that the rate at which ... of protecting VMEs, but work comparing the effects of different gear types has been relatively ... limited. We used data collected by the longline fishery in Subarea 88.1 to compare the impacts of ... Autolines and Spanish longlines on VME taxa. We found that the probabilities of observing positive ...
Meeting Document : WG-FSA-12/27 : Autor(es): T. Gerrodette and G. Watters (USA)
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The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR
randomly selected and observed at sea. The total amount of video footage recorded during these observations ... Abstract: Sampling methods to determine the composition and nature of the catch of the longlining ... CCAMLR observers deployed on the fishing fleet. The collection of this data is important for the ... assessment and management of the fishery. This independent estimation of the total catch in the fishery ...
Meeting Document : WG-FSA-14/27 : Autor(es): R.A. Benedet (United Kingdom)
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
Abstract: The mackerel icefish (Champsocephalus gunnari) is a prominent member of the coastal ... fish fauna of the Seasonal Pack-ice Zone and the islands north of it. Separated into a number of stocks ... exploited since the beginning of the 1970's with reported annual catches exceeding 50- 100 000 tomes in ... some years. Champsocephalus gunnari has many characteristics typical of Antarctic fish species with ...
Meeting Document : WG-FSA-96/24 : Autor(es): Everson, I., Kock, K.-H.
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Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in Antarctic waters
1.15.1.1). Routine scoring of 358 fish at the 16 loci revealed below average levels of genetic variability ... notion of at least partial migration of C. gunnari between South Georgia and the South Orkneys, and ... Abstract: Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in ... subjected to starch gel electrophoresis. sixteen putative enzyme-coding loci were examined, of which 7 were ...
Meeting Document : WG-FSA-91/22 : Autor(es): G.R. Carvalho and M. Warren (United Kingdom)
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Foraging location and range of white-chinned petrels Procellaria aequinoctialis breeding in the south Atlantic
Abstract: The foraging range and principal feeding areas of White-chinned Petrels breeding at ... distance per day during chick-rearing (71 km) than during incubation (91 km) but the proportion covered at ... both periods of the breeding season and during day and night. Between incubation shifts. White-chinned ... and also at sites close to the South Orkney Islands: Illex argentinus on the Patagonian shelf ...
Meeting Document : WG-FSA-01/25 : Autor(es): S.D. Berrow, A.G. Wood and P.A. Prince (United Kingdom)
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Foraging location and range of white-chinned petrels Procellaria aequinoctialis breeding in the South Atlantic
Abstract: The foraging range and principal feeding areas of White-chinned Petrels breeding at ... covered at night (47%) was the same. Mean (31- 34 km/h) and maximum (80 km/h) flight velocities were ... similar during both periods of the breeding season and during day and night. Between incubation shifts ... Shag Rocks/South Georgia and also at sites close to the South Orkney Islands; Illex argentinus on the ...
Meeting Document : WG-FSA-99/20 : Autor(es): S.D. Berrow, A.G. Wood and P.A. Prince (United Kingdom)