Résultats de la recherche
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Dynamics of abundance and state of Notothenia rossii rossii stocks on the Kerguelen Island shelf
exploitation (Uopt.) and optimal fishing mortality (Fopt.) in age groups and years of fishery have been ...
Meeting Document : WG-FSA-90/41 : Auteur(s): P.B. Tankevich and V.A. Shlyakhov (YugNIRO, USSR)
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BEACHED MARINE DEBRIS SURVEYS AND INCIDENCES OF SEABIRD/MARINE MAMMAL ENTANGLEMENTS AND HYDROCARBON SOILING AT BIRD ISLAND, SOUTH GEORGIA AND SIGNY ISLAND, SOUTH ORKNEYS, 2008-2009
ropes were the most commonly observed items (in varying quantities) during all three seasons at Bird ... at Bird Island, while one entangled fur seal was seen at Signy Island. In total, 147 items of marine ... debris were found in association with seabird colonies at Bird Island, with the highest number (89 items ... ; 61%) associated with wandering albatrosses. A total of 20 incidences of hydrocarbon soiling involving ...
Meeting Document : WG-IMAF-09/09 : Auteur(s): C.M. Waluda (United Kingdom)
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Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines
Abstract: Acoustic harassment devices (AHDs) have been increasingly implemented in various ... in deterring depredation we experimentally tested a high amplitude device (195 dB re 1 μPa 6.5 kHz 1 ... expected this distance to increase in response to the acoustic disturbance created by the AHD. The ... activation and 30 phases during which the AHD was turned off. Two multi-exposed killer whale social units ...
Meeting Document : WG-FSA-14/P04 : Auteur(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet
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KRILL CATCHES INDICATE THE IMPACT OF THE EL-NIŇO – SOUTHERN OSCILLATION RELATED PROCESSES ON THE DISTRIBUTION OF KRILL BIOMASS BETWEEN SUBAREAS OF THE ATLANTIC SECTOR OF ANTARCTIC
negative anomalies of catches in the important Subarea 48.2 are seen in the year of oceanographical regime ... available catch to SSMUs the models should incorporate subarea specific krill biomass dynamics in the years ... fishery management issues. Krill catch data in Subareas 48.1, 48.2 and 48.3 are compared to the AMLR ... analysis suggest that the dynamics of krill biomass in fishable aggregations in Subareas 48.1 and 48.2 is ...
Meeting Document : WG-EMM-09/47 : Auteur(s): V. Spiridonov (Russia)
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Diseases outbreak threatens Southern Ocean albatrosses
Abstract: Infectious diseases have the potential to cause rapid decline and extinction in ... vertebrate population and are likely to be spreading with increased globalisation and climate warming. In the ... Southern Ocean and in Antarctica no major outbreaks of infectious diseases have been reported, perhaps ... can be found dead on the colonies. The outbreak of the disease occurred probably in the mid 1980s when ...
Meeting Document : WG-EMM-03/32 : Auteur(s): H. Weimerskirch (France)
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Population trends of albatrosses and petrels at sub-Antarctic Marion Island
during the early to mid-1990s. Recently, all species have once again stabilized or decreased in numbers ... and can be explained by changes in tuna (Thunnus spp.) longline fishing effort in the southern Indian ... Ocean. A recent increase in tuna longlining, as well as recent large-scale Illegal, Unregulated and ... , could be contributing to the recent decreases in some of these species. Adoption of mitigation measures ...
Meeting Document : WG-FSA-01/11 : Auteur(s): D.C. Nel, P.G. Ryan, R.J.M. Crawford, J. Cooper and O. Huyser (South Africa)
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Analysis of trawl data from the South Georgia krill fishery
Abstract: Data from individual trawls carried out by vessels operating in the krill fishery at ... focussed, operating in a limited area along the shelf edge on the northern coast of the island. Each day a ... large number of trawls were undertaken by each,vessel, with trawls being shorter in duration during the ... the variability are discussed in relation to the biology of krill, others are discussed in relation to ...
Meeting Document : WG-EMM-97/41 : Auteur(s): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.
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Anthropogenic feather soiling, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1999/2000
associated with seabirds at Bird Island, South Georgia. In this, the seventh year of standardised recording ... -line originating from fishing vessels was recorded in association with wandering albatrosses ... . Quantities of fishing gear remained within the levels of previous years for all other species, except black ...
Meeting Document : SC-CAMLR-XIX/BG/04 : Auteur(s): Delegation of the United Kingdom
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PREDICTING THE VULNERABILITY OF BRYOZOANS AND SPONGES TO DISTURBANCE USING LIFE-HISTORY CHARACTERISTICS
form important biogenic habitat in the Southern Ocean. Data were extracted from a global database of ... centuries to recover from disturbance particular in areas where natural disturbance is low. Author(s ... model suggests that Southern Ocean bryozoans may take more than 50 years to recover following ...
Meeting Document : WS-VME-09/12 : Auteur(s): Martin-Smith, K.
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The foraging range of Adelie penguins – implications for CEMP and interactions with the krill fishery
not occur at these sites in normal ice years. It is suggested that an understanding of the potential ... widely spaced locations along the coast of Eastern Antarctica between 55°E near Enderby Land and 175°E in ...
Meeting Document : WG-EMM-96/69 : Auteur(s): Rodary, D., Thomson, R., Tremont, R., Lawless, R., Gardner, H., Wienecke, B., Clarke, J.R., Kerry, K.R., Corsolini, S., Eberhard, S.