Resultados de la búsqueda
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Antarctic fur seal (Arctocephalus gazella) pup growth rates obtained at Cape Shirreff, Livingston Island, South Shetlands: 1994/95 to 1997/98 (CEMP Index C2, Procedure B)
differences on reproductive strategies between populations of A. gazella. An important decrease in A. gazella ... 's population was observed during 1997/98. No evidence for an ENSO phenomenon influence is ... ) was attained when large sea-ice extent was reported, while the two lowest growth rates for males (1994 ... least square linear regression of weight against age. Strong correlation was found between variables for ...
Meeting Document : WS-AREA 48-98/18 Rev. 1 : Autor(es): R. Hucke-Gaete, V. Vallejos and D. Torres (Chile)
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Networks and tools to enhance collaboration and coordination of observational activities
held between the Southern Ocean Observing System (SOOS) and CCAMLR in April 2018 to: Improve ... understanding of roles and operations between the two communities Identify reciprocal pathways of communication ... for exchange of information Identify synergies in data requirements and data management planning This ... -CAMLR-XXXVII/BG/19 submitted jointly by the USA, Belgium and SOOS. This report provides an overview of ...
Meeting Document : SC-CAMLR-XXXVII/BG/31 : Autor(es): Submitted by SOOS
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Consideration of major issues in ecosystem monitoring and management
outlined. This highlights the need for information on harvested and dependent species their interaction and ... bringing these various components together as an ecosystem approach to management is discussed. Author(s ... Abstract: The requirements of an ecosystem approach to management of Southern Ocean resources are ... the manner in which their populations vary naturally. Large scale interactions are catered for the ...
Meeting Document : WG-EMM-01/73 : Autor(es): I. Everson (United Kingdom)
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Interannual variability of polynya extent in the Antarctic Ocean
Abstract: There are two general kinds of polynya (an ice-free area within sea ice borders ... reports on the place, time and shape of the coastal polynyas. Accordingly, we pursued the transition of ... are trending like a pulse wave. In the whole Antarctic Ocean, peak years of polynyas extent are in the ... 1981/82 (from July 1981 to June 1982), 1991/92 and 1995/96. In the Antarctic Peninsula area, peak years ...
Meeting Document : WG-EMM-01/34 : Autor(es): M. Naganobu and K. Segawa (Japan)
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Age, growth and size at sexual maturity of Macrourus carinatus from the CCAMLR fisheries in division 58.5.2
samples collected during two research voyages to Heard and McDonald Islands (Division 58.5.2) in 1992 and ... 1993. The estimated range of ages was 4 – 25 years. von Bertalanffy growth parameters were calculated ... for both sexes combined, resulting in values of: L8 = 635 mm, K = 0.088 and t0 =-1.8. The size at ... was 417 mm total length and the size at which 50% of the fish population have spawned for the first ...
Meeting Document : WG-FSA-02/48 : Autor(es): E.M. van Wijk, R. Williams and A.J. Constable (Australia)
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Distribution and ecology of Chaenocephalus aceratus (Channichthyidae) around South Georgia and Shag Rocks (Southern Ocean).
demersal fish living on the South Georgia shelf where it is caught in low numbers as by-catch in the ... estimates from a swept area method ranged from 4462 tonnes to 28740 tonnes on the South Georgia and Shag ... that growth was fast in the first five years with males and females attaining lengths at first spawning ... of 440 mm TL and 520 mm TL. The diet was comprised of fish and crustaceans, with an ontogenetic shift ...
Meeting Document : WG-FSA-07/P5 : Autor(es): W.D.K Reid, S. Clarke, M.A. Collins and M. Belchier. (Polar Biol., 30 (12): 1523–1533 (2007))
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Features of chronology and breeding success of Pygoscelis papua and Pygoscelis adeliae penguins in the Wilhelm Archipelago (CCAMLR Subarea 48.1)
Abstract: We aim to investigate the qualitative changes in the habitats of two most common ... minimize the effect of human disturbance on the breeding success and survival of chicks and avoid ... the penguin colonies for observation breeding success of penguins: arrival to colony, copulation, egg ... lay, hatch, and creche, has been applied. This method was introduced for the first time in the ...
Meeting Document : WG-EMM-18/P13 : Autor(es): I.V. Dykyy, G.P. Milinevsky, O.L. Savitsky, D.G. Lutsenko, P.B. Khoetsky, M.F. Veselsky, V.M. Smagol, A.O. Dzhulay, J.V. Tsaryk, K.M. Nazaruk, A.T. Zatushevsky, A.O. Simon and M.A. Telipska
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Spatial distribution of foraging by female Antarctic fur seals
Abstract: The study tested the hypothesis that the distribution of critical habitat for foraging ... gradients in the oceans and also by the need to avoid local competition for food. It also tested the ... years when there were different amounts of prey available. Females were constrained to forage mainly ... within 100 km of the location at which the offspring was being raised. When this constraint was removed ...
Meeting Document : WG-EMM-01/26 : Autor(es): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)
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Dynamic model of krill Euphausia superba swarm
Abstract: During the Italian Antarctic Expeditions to the Ross Sea, in the years 1989- 1994 ... (Okubo, 1980, 1986). It was assumed that the above mentioned model can also be applicable to krill swarms ... normally used for fish groupings. Author(s): Kalinowski, J., Azzali, M. Title: Dynamic model of krill ...
Meeting Document : WG-EMM-95/68 : Autor(es): Kalinowski, J., Azzali, M.
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Terra Nova Bay: hot spot in marine and terrestrial biodiversity, knowledge and functioning of the ecosystem
Abstract: The Terra Nova Bay area is particularly valuable for science due to the presence of ... . From an oceanographic perspective, the area is characterised by the occurrence of the Terra Nova Bay ... polynya, a crucial region for the formation of the High Salinity Shelf Water (HSSW), formed by the ... communities, either on the sea bottom (e.g. scallops and sponges) and in the water column. In fact, Terra Nova ...
Meeting Document : WS-MPA-11/14 : Autor(es): S. Torcini, M. Vacchi, S. Aliani, G. Bavestrello, A. Bergamasco, G. Budillon, B. Calcinai, G. Catalano, R. Cattaneo-Vietti, C. Cerrano, M. Chiantore, S. Corsolini, R. Bargagli, A. Dell’Anno, G. di Prisco, G. Fusco, S. Focardi, L. Gugliemo, G. Lauriano, P. Luporini, O. Mangoni, S. Olmastroni, F. Pezzo, E. Pisano, L. Ghigliotti, P. Povero, S. Puce, A. Pusceddu, E. Rusciano, M. Saggiomo, V. Saggiomo, M.C. Gambi, S. Schiaparelli, G. Spezie, C. Verde, P. Del Negro (Italy)