Resultados de la búsqueda
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Standing stock, biology, diet and spatial distribution of demersal finfish from the 2003 US AMLR bottom trawl survey of the South Shetland Islands (Subarea 48.1)
bottom trawl surveys of the South Shetland Islands (Subarea 48.1) during the 1998, 2001, and 2003 austral ... . The standing stock for most species has fluctuated, with no signal of substantial year classes or ... relative to all other species, there appears to be a decline in biomass. The overall abundance of finfish ... in the South Shetland Islands has yet to reach a level at which commercial exploitation would be ...
Meeting Document : WG-FSA-03/38 : Autor(es): C.D. Jones (USA), K.-H. Kock, (Germany), J. Ashford, A. DeVries, K. Dietrich (USA), S. Hanchet (New Zealand), T. Near, T. Turk (USA) and S. Wilhelms (Germany)
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A study of UK and Russian surveys using acoustics to augment trawling methods in shelf waters off South Georgia (Subarea 48.3)
Abstract: In 2001/2002 Russian and UK vessels undertook surveys for icefish at South Georgia ... acoustic surveys indicated that icefish were not only located near to the seabed, but that a significant ... estimates are ~ 1.5 times greater This should be taken into account in the forthcoming stock assessment ... during WG-FSA–2002. These results show that the current observation system for the collection of data for ...
Meeting Document : WG-FSA-02/56 : Autor(es): S. Kasatkina, P. Gasyukov (Russia), C. Goss, I. Everson, M. Belchier, T. Marlow, A. North and M. Collins (United Kingdom)
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e-sc-xxiii-a5.pdf
... yet to be specified and consultation with the conveners of WG-FSA-SFA during 2004 indicated that the ... Group that Dr M. Belchier (UK) would not be attending this year’s meeting due to the recent death of ... the report. Meeting documents 2.4 WG-FSA noted with pleasure that the majority of meeting ... documents would be accepted at this meeting. However, WG-FSA emphasised that this action should not be
application/pdf attached to:WG-FSA-04
Meeting Report : WG-FSA-04
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
there must have been at least one encounter with an FPV in a year; no encounters in a year are ... ’. The encounter probability was estimated from the known encounters of FPVs with licensed vessels. The ... with IUU fishing. The mean and variance of fish catch rate was calculated for each area and each year ... highly skewed, with medians in the three years of 621, 2 852 and 550 birds respectively. 95% confidence ... 122 behaviour, which is capable of dealing with unseen IUU effort and can be used to derive ... - fi sh could potentially be caught, IUU operations moved to that area in 1996 and 1997. Since then ... develop the model presented here, and it is shown that this model can be used to esti- mate the level and ... activity increased considerably at South Georgia, with the result that after detecting a few inci- dents ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Autor(es): Agnew, D.J. and G.P. Kirkwood
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e-sc-40-a5.pdf
... rules that would be consistent with the current CCAMLR decision rule and its objective. The rules in ... Group noted that the term ‘fishing impact zone’ could be confused with the term ‘fishery footprint ... that Conservation Measure (CM) 51-07 will expire in November 2021 and will need to be replaced by an ... AMLR krill survey data show that estimated recruitment is highly variable, and that years with very
application/pdf attached to:WG-SAM-2021
Meeting Report : WG-SAM-2021
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Dispositivos de exclusión de aves utilizados en las pesquerías de palangre ordenadas por la CCRVMA
that there may be different configurations of BEDs that demonstrate the two characteristics and also to ... factors may be important. A BED configuration that demonstrates the two characteristics is shown in the ... Paragraph 9 of Conservation Measure 25-02 039;Minimisation of the incidental mortality of ... seabirds in the course of longline fishing or longline fishing research in the Convention Area039 ...
Page : Site Section: Fisheries
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e-cc-xx-a5.pdf
... that Area 51 may be more productive than other areas. However, compared with other potential ... agreed that the issue be considered further intersessionally. The Committee also noted with gratitude ... exported with a Dissostichus Catch Document (DCD) (SCOI-01/23). This indicated the concern that the CDS ... it is stated that: ‘…The Commission also noted that SCOI had considered the sinking, with many
application/pdf attached to:SCOI-01
Meeting Report : SCOI-01
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The effects of global climate variability in pup production of Antarctic fur seals
Abstract: Climate variability has strong effects on marine ecosystems, with repercussions that ... . Nonlinear mixed effects models indicated that positive anomalies at South Georgia explained extreme ... range in scale from those that impact individuals to those that impact the entire food web. Climate ... sea surface temperature (SST). Environmental autocorrelation at South Georgia was evident with ...
Meeting Document : WG-EMM-06/P2 : Autor(es): J. Forcada, P.N. Trathan, K. Reid and E.J. Murphy (United Kingdom)
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Depth distribution and spawning pattern of Dissostichus eleginoides over the winter period in Subarea 48.3
with movement of animals to preferred spawning depths. A general model would be that toothfish form ... high mean length at depth are May and August, and with a low mean length at depth are April and July ... . Examination of maturity data suggests that in addition to a major spawning event in late July/August, there ... spawning between the two areas. There may be two (or more) spawning periods during the winter, with the ...
Meeting Document : WG-FSA-98/58 : Autor(es): D.J. Agnew, K. Kerkieta, L. Heaps, C. Jones, J. Pearce and A. Watson (United Kingdom)
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Numerical model of ecosystem including Euphausia superba Dana as a key species in circumpolar region
OGCM (Ocean General Circulation Model) (2) to develop a one dimensional ecosystem model that can be ... ) with seven compartments and coupled with a one dimensional mixed layer model for calculating the ... Abstract: On the processes to investigate a proper model for understanding the processes that ... integrated model with the above 5 items. This year, we have developed an OGCM and a one dimensional ecosystem ...
Meeting Document : WG-Krill-94/26 : Autor(es): M.J. Kishi and M. Naganobu (Japan)