Resultados de la búsqueda
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Krill catch distribution in relation to predator colonies 1987 to 1992
is similar to that seen for other years, with 70% of the total catch from Subarea 48.1 being taken ... previous years. It is estimated that the catch in the critical period-distance was equal to 12% and 15% of ...
Meeting Document : WG-KRILL-93/10 : Autor(es): Secretariat
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Absence of haematozoa in breeding macaroni Eudyptes chrysolophus and rockhopper E. chrysocome penguins at Marion Island
smears from eastern rock-hopper penguins E. chrysocome filholi at subantarctic Marion Island between ...
Meeting Document : WG-EMM-03/19 : Autor(es): A. Schultz and S.L. Petersen (South Africa)
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Age and growth of Scotia Sea icefish Chaenocephalus aceratus (Lönnberg, 1906), from the South Shetland Islands
from different institutions. The age range was 1-17 years for females and 1- 15 years for males. Von ... . Sexual maturity was attained by females and males at about 10 and 9 years old respectively, at about 60 ... % of their maximum estimated age. These results are compared with age and growth data available in the ... asymptotic length L??(cm) and K (year-1) were respectively 79.8 and 0.07 for females and 60.0 and 0.09 for ...
Meeting Document : WG-FSA-02/77 : Autor(es): M. La Mesa, J. Ashford, E. Larson and M. Vacchi
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Patterns in the diet of mackerel icefish (Champsocephalus gunnari) on the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3)
icefish examined (2+, 3+ and 4++), with the younger fish consuming more T. gaudichaudi and small ... consistent with previous studies, with the dominant species consumed being Antarctic krill (Euphausia superba ... larger prey items with size. Author(s): M.A. Collins, R. Mitchell, G. Tarling and M. Belchier (United ...
Meeting Document : WG-FSA-04/44 : Autor(es): M.A. Collins, R. Mitchell, G. Tarling and M. Belchier (United Kingdom)
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SUMMARY OF SCIENTIFIC OBSERVATIONS IN THE CAMLR CONVENTION AREA FOR 2009/10 SEASON
cruises were conducted within the CAMLR Convention Area during 2009/10, with scientific observers ... , 58.4.2, 58.4.3a and 58.4.3b by 3 vessels, 3 cruises were conducted by 2 vessels in Division 58.5.2 (one ... undertaken in Subareas 88.1 and 88.2 by 12 vessels. 3. Throughout this paper the data reported are those that ...
Meeting Document : WG-FSA-10/05 : Autor(es): Secretariat
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Preliminary model of krill fishery behaviour in Subarea 48.1
March, compare favourably with the general distribution of catches in Subarea 48.1. A number of ... the management option of closing the zones around Livingston and Elephant Islands in alternate years ... concentrated in foraging areas of land-based predators in alternate years under this scenario. Author(s): D.J ...
Meeting Document : WG-KRILL-93/14 : Autor(es): D.J. Agnew (Secretariat)
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Antarctic sea ice losses drive gains in benthic carbon drawdown
phytoplankton die and sink to the sea-bed where the carbon is sequestered for thousands of years. This carbon ... Peninsula in the last few years has exposed new open water, allowing large blooms of phytoplankton to ... sink acts as a negative feedback to climate change, with an estimated 2.9 million tonnes of carbon ... drawdown per year on the West Antarctic continental shelf. Carbon accumulation differs significantly ...
Meeting Document : SC-CAMLR-XXXIV/BG/34 : Autor(es): Delegation of the United Kingdom
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PROPUESTA PARA REALIZAR UNA PROSPECCIÓN PATROCINADA POR LA CCRVMA CON EL FIN DE EFECTUAR UN SEGUIMIENTO DE LA ABUNDANCIA DE PRE-RECLUTAS DE LA AUSTROMERLUZA ANTÁRTICA EN EL SUR DEL MAR DE ROSS
years in Subarea 88.1 and for nine years in Subarea 88.2. The research and assessment work in these ... locations in different years, making it impossible to develop a consistent time series that would monitor ... Scientific Committee request. We propose that the first survey be a pilot, with two main objectives: (i) To ...
Meeting Document : SC-CAMLR-XXX/07 : Autor(es): Delegation of New Zealand
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Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
primarily on krill, which is patchily distributed. When combined with information about swimming speed on ... km) represented by short (5 rain) travel durations. In a study lasting 5 years, the distributions of ... travel durations between bouts of feeding changed between years. These changes suggested either that the ... structure and/or the spatial distribution of krill swarms varied between years. The behavior of fur seals ...
Meeting Document : WG-EMM-95/23 : Autor(es): Boyd, I.L.
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Determination of a statistically based survey area suitable for hydroacoustic stock assessment of Euphausia superba in the Elephant Island, King George Island, Bransfield Strait area
be shown to exhibit high standing stock (greater than 2 million tons) years, moderate standing stock ... (approximately 1 million tons) years, and low standing stock (less than 1/2 million ton) years. The size of the ... with a predominant origin of individuals from the Weddell Sea. The size of the area and the approach ... -series of data from 1981, 1984 and 1978-1989 permitted resolution of inter-year differences in standing ...
Meeting Document : SC-CAMLR-VIII/BG/32 : Autor(es): Delegation of USA