Resultados de la búsqueda
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Length-age composition of the Patagonian toothfish, Dissostichus eleginoides, from the Kerguelen Island area
this period were located in the west shelf area (48°30’- 49°30’S and 66°50’- 67°20’E). Total catch was ... concentrated in the north shelf area (47°10’- 47°30’S and 66°50’- 67°20’E). Total catch was about 5.2 x 103 ... abundant in catches, mean age was 8.2- 9.8 years. In the 1991/92 season fishing for the species was ... years. Results presented in the paper are in agreement with results of other studies conducted in the ...
Meeting Document : WG-FSA-92/08 : Autor(es): V.G. Prutko and V.N. Chikov (Ukraine)
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A SIMULATION MODEL FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES
level that can naturally restore the original structure and function within 20 years. It does not ... ecosystems’ in order to maintain the ecological structure and function of, particularly, deep sea benthic ... easily be met would be more vulnerable than those for which the objective might be met most often. This ... enables uncertainties to be captured in a straight‐forward manner to assist CCAMLR in maintaining its ...
Meeting Document : WG-SAM-09/21 : Autor(es): A.J. Constable (Australia)
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FURTHER DEVELOPMENTS OF A SIMULATION MODEL, ‘PATCH’, FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES
level that can naturally restore the original structure and function within 20 years. It does not ... approach in managing Antarctic fisheries. The model is ready for use by WG-FSA this year to begin ... ecosystems’ in order to maintain the ecological structure and function of, particularly, deep sea benthic ... easily be met would be more vulnerable than those for which the objective might be met most often. The ...
Meeting Document : WG-FSA-09/42 : Autor(es): A.J. Constable (Australia)
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Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia
highest proportion of fish in over 20 years of routine monitoring (46% by mass; particularly the myctophid ... -based (animal tracking and diet analysis) techniques, we examined variability in the foraging ecology of ... are the two main land-based krill Euphausia superba consumers in the northern Scotia Sea. Using a ... from acoustic surveys was low during summer, increasing in autumn. During the breeding season, krill ...
Meeting Document : WG-EMM-10/P07 : Autor(es): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan
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Lead-radium dating provides a framework for coordinating age estimation of Patagonian toothfish (Dissostichus eleginoides) between fishing areas
estimates range from approximately 20 to more than 50 years. In this study, lead-radium dating provided ... zones in transverse otolith sections, and longevity estimates exceeding 30 years. Lead-radium dating ... . 3.3 years was observed across estimated ages younger than 20 years. For the CAF, ages were ... problems in coordinating age estimation between geographically separated fish stocks, and provided a ...
Meeting Document : WG-FSA-11/P01 : Autor(es): A.H. Andrews, J.R. Ashford, C.M. Brooks, K. Krusic-Golub, G. Duhamel, M. Belchier, C.C. Lundstrom and G.M. Cailliet
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THE POWER OF ECOSYSTEM MONITORING
% power after 20 years with the probability of a type I error (α) = 0.05). The power increased to >50 ... monitoring programme of the predators of Antarctic krill Euphausia superba at South Georgia together with a ... krill population model to simulate natural and fisheries induced variability in krill abundance, the ... effects of fishing using either the krill population or a combined predator response index was low (20–40 ...
Meeting Document : WG-EMM-08/P11 : Autor(es): K. Reid, J.P. Croxall and E.J. Murphy
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Fish prey of the wandering albatross Diomedea exulans at South Georgia
between years but epipelagic fish were significantly more abundant in +I983 than 1984. All identified fish ... (35%), Muraenolepis microps (33 %) and Chaenocephalus acemtus (20%) predominated, with Notothenia ... gibberifrons, Pagothenia hansoni and Champsocephalus gunnari (together 12%) also present. Composition by weight ... caught in the commercial fishery there. However, two of the three main target species of this fishery in ...
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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Collaboration between GOOS and CCAMLR
McEwan, together with extracts from GOOS’s strategic plan for tracking changes in marine ecosystems ... sponsored by IOC, WMO, UEP and ICSU (see website is http://ioc.unesco.org/goos/). In December 2000, Dr Angus ... McEwan, GOOS representative, met with the Data Manager and Science Officer to briefly discuss possible ...
Meeting Document : WG-EMM-01/54 : Autor(es): Secretariat
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Catch removals due to killer and sperm whale interactions across sub-Antarctic fisheries
30% [21-37%] of the total catches. Together, these findings provide metrics needed to assess the ... t] of toothfish was taken per year by killer and sperm whales between 2004 and 2018, equivalent to ... Abstract: Fisheries are human activities that alter resource availability for species in marine ... investigated the extent of this conflict in multiple commercial Patagonian toothfish (Dissostichus eleginoides ...
Meeting Document : WG-FSA-2019/33 : Autor(es): P. Tixier, P. Burch, F. Massiot-Granier, P. Ziegler, D. Welsford, M.-A. Lea, M.A. Hindell, C. Guinet, S. Wotherspoon, N. Gasco, C. Péron, G. Duhamel, R. Arangio, R. Tascheri, S. Somhlaba and J.P.Y. Arnould
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CCAMLR MPAs and the global climate and biodiversity crisis
to ensure conservation objectives are met. Develops MPAs in un-represented regions of the Convention ... Abstract: The world is in a global climate and biodiversity crisis. Multiple international ... work. Nearly two decades since MPA discussions began, there are significant gaps in the system of ... CCAMLR MPAs. This has implications not only for the conservation of marine life in the Convention Area ...
Meeting Document : CCAMLR-38/BG/44 : Autor(es): Submitted by ASOC