Resultados de la búsqueda
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Reproduction in the Antarctic icefish Champsocephalus gunnari and its implications for fisheries management in the Atlantic sector of the Southern Ocean
been reviewed and discussed in the light of existing conservation measures. Length at first spawning is ... Abstract: Available information on key reproductive parameters of Champsocephalus gunnari has ... the other South Atlantic fishing grounds. Spawning activities of Champsocephalus gunnari and those of ... other exploited species could be best protected by the establishment of permanent closed fishing season ...
Meeting Document : SC-CAMLR-VIII/BG/16 : Autor(es): Delegation of Federal Republic of Germany
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Finfish research proposals for Subarea 48.6 by Koryo Maru 11 for 2012/13 (this is a revision of WG-SAM-12/12)
limited to Statistical Subarea 48.6. Preliminary assessments of Dissostichus spp. stocks in Subarea 48.6 ... north of 60°S (SSRUs 48.6A and 48.6G) and south of 60°S (SSRUs 48.6B, 48.6C, 48.6D and 48.6E) were ... conducted by OLRAC-SPS (2012) – tabled at WG-FSA-12 as a separate paper. The research plan presented here ... analysis. The preliminary assessment indicates that the historic precautionary maximum catch limit of 200 ...
Meeting Document : WG-FSA-12/30 : Autor(es): C. Heiniken and R. Ball (South Africa)
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INTERANNUAL SPATIAL VARIABILITY OF KRILL (EUPHAUSIA SUPERBA) INFLUENCES SEABIRD FORAGING BEHAVIOR NEAR ELEPHANT ISLAND, ANTARCTICA
Abstract: We investigate the influence of krill (principally Euphausia superba) patchiness on the ... foraging distributions of seabirds to understand how variation in krill influences patch dynamics between ... krill and birds. At sea surveys were conducted near Elephant Island, Antarctica for three years (2004 ... -transect surveys were used to map seabirds, and a combination of acoustic and net surveys was used to map ...
Meeting Document : WG-EMM-08/P12 : Autor(es): J.A. Santora, C.S. Reiss, A.M. Cossio and R.R. Veit
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Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula
models of standing krill biomass and the design of a sustainable krill fishery for the Scotia Sea ... . Antarctic krill (Euphausia superba) is a significant component of diet for penguins breeding in this region ... in krill predation estimates. We use a comprehensive database of Antarctic penguin abundances to ... of pygoscelid penguins breeding in this region. We find that a high quality survey of Zavodovski ...
Meeting Document : WG-EMM-12/P02 : Autor(es): H.J. Lynch, N. Ratcliffe, J. Passmore, E. Foster and P. N. Trathan
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Short note on time series of Drake Passage Oscillation Index (DPOI) and its influence on environmental variability
, between Rio Gallegos, Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula during 1982 ... Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ...
Meeting Document : WG-EMM-07/14 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)
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Preliminary aspects of a simulation model to be used for evaluating the experimental crab fishery
Abstract: At the 1993 meeting of the Working Group on Fish Stock Assessment, members requested ... that work be undertaken to evaluate certain aspects of the experimental management strategy for the ... rate data from the 1991/92 crab fishery are used to motivate the construction of an ontogenetic ... fishery simulation is spatially explicit, and the dynamics of crab abundance are described on a daily ...
Meeting Document : WG-FSA-94/26 : Autor(es): G. Watters (USA)
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Estimating the level of illegal fishing using simulated scaling methods on detected activity
Abstract: At its 2003 meeting, WG-FSA recommended that investigations be undertaken to determine ... , Annex 5, paragraph 3.18). The results of these simulations suggest that more information on IUU fleet ... the number of IUU fishing days, particularly for areas where patrolling may be relatively infrequent ... vessels between detecting IUU activity, thereby estimating the number of IUU fishing days, and deterring ...
Meeting Document : WG-FSA-SAM-04/14 : Autor(es): Ball, I.
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Survey and monitoring of black petrels on Great Barrier Island 1997
extrapolating from the grid burrows shows the population consists of 4 500 breeding birds and at least 685 non ... accessible through the entrance or easily excavated to reach their contents. Eighty four of these burrows ... set up in 1996 around the summit were monitored over the 1997 breeding season. A total of 54 burrows ... -breeding birds. Author(s): Delegation of New Zealand Title: Survey and monitoring of black petrels on ...
Meeting Document : SC-CAMLR-XVII/BG/08 : Autor(es): Delegation of New Zealand
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
the literature are used to show that for some years, at distances of between 20 and 60 km from ... Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... , probably as a result of more variable hydrographic conditions. About 50% of the catch in Subarea 48.1 from ...
Meeting Document : WG-KRILL-92/19 : Autor(es): D.J. Agnew (Secretariat)
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Selectivity of standard polish commercial trawl codends on Antarctic fishing grounds
solution to the problem of ensuring selectivity of codends at a sufficiently good level seems possible as a ... = 100 mm, made of double twines with a thickness of 4.2 mm. The studies covered 6 major fish species. 1 ... during trawling, although the effectiveness of this process- especially in the latter case- is not ... tendency to pass through meshes of the codend than Antarctic icefish and bumphead notothenia. 3. The ...
Meeting Document : SC-CAMLR-VII/BG/11 : Autor(es): J. Zaucha (Poland)