Resultados de la búsqueda
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Summary of toothfish tagging suitability data from paired Spanish line – trotline sets
Abstract: Conservation Measure 41-01\Annex C requires participants in exploratory fisheries to ... only tag fish with a high probability of survival. Further it recommends that fish hooked only in the ... mouth should be tagged. A new data collection form was implemented in 2012 to allow evaluation of fish ... suitability for tagging from research hauls in exploratory fisheries in Subarea 58.4 and 48.6. We summarized ...
Meeting Document : WG-FSA-12/49 : Autor(es): S. Parker and D. Fu (New Zealand)
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Pairwise tag performance: testing the sensitivity of the tag detection index and the mortality of tagged fish index
developed in 2012 and further developed in 2013, using a methodology which controls for the spatial and ... all other fishing events which occurred in the same time and place (i.e. within a specific distance ... and in the same fishing season). The method showed that when the confounding effects of variable ... with respect to the tag detection index in the Ross Sea region. Here we present the results of ...
Meeting Document : WG-FSA-13/50 : Autor(es): S. Mormede (New Zealand)
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Incorporating information on the distribution of the krill fishery into Domain 1 MPA planning – report of the CCAMLR scholarship recipient
activities, by examining variability in catch locations and magnitude across an 11-year period from 2005/2006 ... Abstract: This study aims to improve understanding of spatial and temporal variability in krill ... fishing activity in MPA Planning Domain 1, towards the development of a ‘cost layer’ and additional ... information for use in Marxan analyses and subsequent MPA planning activities. We provide further detail on ...
Meeting Document : WG-EMM-17/22 : Autor(es): A. Capurro, M. Santos and S. Grant
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Dominio 1 Propuesta Preliminar de Área Marina Protegida Parte B: Objetivos de Conservación
summarizes the results and decisions taken in a series of international workshops specifically developed to ... assist in the Domain 1 MPA planning process, including the 2012- First International Workshop held in ... Valparaiso, Chile, (WG-EMM-12/69); the 2013 Binational Workshop (Chile-Argentina) held in La Serena, Chile ... ) in Domain 1 of CCAMLR held in Buenos Aires, Argentina (WGEMM-15/42); and the 2016 Informal Workshop ...
Meeting Document : SC-CAMLR-XXXVI/BG/22 : Autor(es): Delegations of Argentina and Chile
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Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2
(NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ... had been accounted for, the mercury levels in D. eleginoides were over four times greater than in D ... levels were positively correlated with fish length in four of the species. Mercury levels also showed ...
Meeting Document : WG-FSA-07/24 : Autor(es): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)
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Coastal weather drives foraging behaviour of chinstrap penguins, Pygoscelis antarctica
Abstract: There is increasing interest in using higher-trophic level predators as ecosystem ... supports them. In the southwest Atlantic sector of the Southern Ocean, Antarctic krill (Euphausia superba ... the ecosystem in an adaptive framework for sustainably managing krill catch levels, performance ... environmental variability and fishing pressure on krill availability at scales relevant to predators. In this ...
Meeting Document : WG-EMM-18/P14 : Autor(es): A.D. Lowther, P. Trathan, A. Tarroux, C. Lydersen and K.M. Kovacs
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Observer notes (Subarea 88.1)
bottom long-line sets in Subarea 88.1 from 15.12.03 till 10.03.04 are presented. For the first time ... Antarctic toothfish was found in long-line catches above seamounts of the Pacific-Antarctic Ridge to the ... North up to 56°S. Presence of Patagonian toothfish in spawning aggregations of Antarctic toothfish ... cannot lead to their intbreeding as its gonads were at the early development stages in that period ...
Meeting Document : WG-FSA-04/89 : Autor(es): V.G. Prutko (Ukraine)
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On the problem of diurnal migrations of some fish species on the South Georgia shelf (Subarea 48.3)
Abstract: The results of experiments on the South Georgia Shelf carried out in the period of 1986 ... was the most distinctive in Ch.gunnari fry. The individuals used to ascend towards the water column ... individuals were found in the pre-bottom layer by day, being presented their small quantities in the water ... expressed during 24 hours. It was distinctly observed in juvenile and adult individuals: they were kept ...
Meeting Document : WG-FSA-99/64 : Autor(es): I.A. Trunov, J.A. Frolkina and M.P. Konstantinova (Russia)
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CCAMLR ecosystem monitoring and management: future work
Abstract: Harvesting of marine living resources in the Southern Ocean is managed by the ... in the conservation objectives. In the late 1980s, the precautionary approach of CCAMLR was ... developed, incorporating principles of how to use scientific evidence in the decision making process. Even ... ), it takes account of the needs of predators in the assessment of catch limits. The success of this ...
Meeting Document : WG-EMM-12/P05 : Autor(es): A.J. Constable
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Network characterisation of the food-web of the Ross Sea, Antarctica
, i.e. the whole Ross Sea shelf and slope area, averaged over a typical year, and in 35 trophic groups ... toothfish (Dissostichus mawsoni) in the region. We evaluate: (1) biomass and flow of organic matter by ... pronounced peak in biomass in the lower-middle part of the food-web, a result of high biomass of ... the total living biomass in the Ross Sea (bacteria excluded). The six groups with the highest ‘indices ...
Meeting Document : WG-EMM-12/53 : Autor(es): M.H. Pinkerton and J.M. Bradford-Grieve (New Zealand)