Resultados de la búsqueda
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DISCRIMINATION OF ENVIRONMENTAL VARIABLES THAT INFLUENCE THE CATCH PER UNIT EFFORT: THE CASE OF THE ANTARCTIC KRILL FISHERY
Abstract: The use of the catch per unit effort (CPUE) as an index of abundance usually requires a ... the environmental effects vary on different temporal scales in autocorrelated and non-random manners ... describe statistically the cause-effect relationship between two time-series and herein we propose that TFM ... are a valid tool for: i) discriminating environmental effects that influence the CPUE and ii ...
Meeting Document : WG-EMM-11/P3 : Autor(es): J.C. Quiroz, R. Wiff, M.A. Barrientos and F. Contreras
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Uncertainty in acoustic surveys of Antarctic krill
provided corroboration to an empirical model developed from a linear regression. However, TS values have ... been observed to vary as much as 8 dB, depending on the time of day (unpublished data). Also, Monte ... in species delineation was also investigated, through the development of a statistical technique for ... integrated echo energy between two predominant scatterers, Euphausia superba and Salpa thompsoni. These ...
Meeting Document : WG-EMM-95/72 : Autor(es): Demer, D.A.
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WG-EMM-13
-EMM-13/04 Some thoughts on our work towards establishing feedback management scheme for krill fishery ... ICED Scientific Steering Committee WG-EMM-13/20 Potential climate change effects on the habitat of ... Cierva Cove (ASPA N° 132). Is this site an appropriate control area for non-fishing effects? M.M. Santos ... the evidence for a possible dependence of Weddell seals (Leptonychotes weddellii) on Antarctic ...
Meeting
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The proposal of Availability Index to summarise the availability of harvested resources
information on availability of the specific marina living resources for fishery. The availability index can be ... together with natural conditions, as well as conditions for fishery. Author(s): K. Demianenko and G ... summarized availability of each harvested species of resources for human use. In connection with this it is ... Approval: Approved Secretariat Workflow Status: Content Approved Delegation responsibility for releasing ...
Meeting Document : WG-EMM-16/57 : Autor(es): K. Demianenko and G. Milinevskyi
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Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)
of the species sampled, on the order of 3-4 ‰ for?15N (which equates to one trophic level) and 4 ... Abstract: Flesh tissue samples were collected by scientific observers on-board New Zealand ... Atlantic, and sperm whales from the Gulf of Mexico. There was high variance in?15N and?13C values for each ... ‰ for?13C (suggesting multiple primary sources of organic matter). For each species where sufficient ...
Meeting Document : WG-EMM-07/19 : Autor(es): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)
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Spatial variability and power to detect regional-scale trends
Abstract: An important issue in regional-scale trend detection is the degree of concordance in ... trend between sites in relation to an average regional trend. If there is much or more variability ... power for various multiple-site monitoring scenarios. Under the conservative, hypothetical scenarios we ... extreme, monitoring at all sites in a region (a census) may be an unnecessary use of resources because the ...
Meeting Document : WG-EMM-03/47 : Autor(es): C. Southwell and L. Emmerson (Australia)
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Workshop Report – The Ross Sea: Science, Policy and the Public in a Pristine Marine Ecosystemt
Sea: on the basis that its northwestern shelf was an unglaciated refuge during recent glacial maxima ... , coincide closely with the criteria agreed to by the UN Convention for Biological Diversity to identify ... , and that its fauna, especially its notothenioid fish, now comprise a unique evolutionary radiation on ... Lakes, Lake Baikal); on the basis of projections made from current models in the IPCC array, it likely ...
Meeting Document : WG-EMM-09/14 : Autor(es): J. Weller and D.G. Ainley (USA)
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WG-EMM-95
for the krill fishery Everson, I. WG-EMM-95/18 Preliminary results on the composition and abundance of ... -95/19 On the examining of krill flux Makarov, R. WG-EMM-95/20 The organisation of environmental ... -Committee on Krill), D. Miller (Convener WG-Krill) WG-EMM-95/36 Draft standard methods for the collection of ... Draft terms of reference for a possible workshop on time depth recorders (TDRs) to be convened in ...
Meeting
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BEACH DEBRIS SURVEY – MAIN BAY, BIRD ISLAND, SOUTH GEORGIA 1995/96
bands found ashore was the highest for many years, as was the proportion of these which were uncut ... itself an 8-fold increase over any earlier value. Nylon line, identical with that attached to longline ... gear, accounted for 77% of items, nearly all of which clearly originated from fishing vessels. The ... CCAMLR ban on the use of packaging bands being in force during 1995/96, the total number of packaging ...
Meeting Document : CCAMLR-XVI/BG/4 : Autor(es): Delegation of the United Kingdom
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Diets of Antarctic toothfish estimated from fatty acids and stable isotopes
Antarctic toothfish, by-catch and their stomach contents were collected for the past five years in the eight ... recently developed mixing model calculation for FA profiles and SI values, which follows the Bayesian ... whole population level. In contrast, the model calculations provided an estimation of dietary shift ... shifts on the nonmetric multidimensional scaling plot and the SOM map by realistic diet proportions ...
Meeting Document : WG-FSA-17/12 : Autor(es): C.-K. Kang, S.-G. Choi, J. Lee, J. Lee and D. An