Résultats de la recherche
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OPTIONS FOR USING UNREPLICATED ECOSYSTEM MONITORING DATA TO DETECT IMPACTS
. Furthermore, CEMP data cannot be used in a standard environmental impact assessment framework as they lack ... control sites. Identifying how these data could be used in an ecosystem management strategy is therefore ... and a schedule of tactical interventions in response to these impacts (e.g. restrictions on fishing ... either assess the expected probability of an observed value in an unimpacted system, or they assess the ...
Meeting Document : WG-EMM-09/26 : Auteur(s): S. Hill, J. Forcada, P. Trathan and C. Waluda (United Kingdom)
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation
other model parameters in integrated assessments via CASAL for the Heard and McDonald Islands (HIMI ... -recapture data were generated for 12 years of fishing. Two alternative estimation models were programmed in ... (ODE) for within-year population dynamics. The difference in the models derives from differences in ... likelihood components avoiding the difficultly in appropriately weighting separate components. Also, for a ...
Meeting Document : WG-SAM-10/11 Rev. 1 : Auteur(s): S.G. Candy (Australia)
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Dispute settlement
address this situation. In this regard, the binding procedures for dispute settlement set out in Part XV ... of UNCLOS could be considered by CPs in a two-fold manner: As a benchmark that should be followed for ... other means are not followed or did not produce an outcome. In the case of disagreement as to the ... should be employed or copied in any modification of the dispute settlement scheme of CCAMLR. As a ...
Page : Site Section: The Organisation
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Beach debris survey – Main Bay, Bird Island, South Georgia, 2005/06
, nylon line was absent from Bird Island, an encouraging result after the peak of 546 pieces in 1995/96 ... . However plastic packaging bands are still regularly recovered. In the reporting period 16 pieces were ... found, more than in any of the previous 9 years, suggesting that the ban on their use aboard fishing ... vessels brought into force by CCAMLR in 1995/96 has yet to prove entirely effective. Sixty-nine pieces of ...
Meeting Document : SC-CAMLR-XXVI/BG/16 : Auteur(s): Delegation of the United Kingdom
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Krill fishery report: 2007 update
for krill in Area 48 in the 2006/07 season, and these vessels have taken 61876 t of krill to date. Two ... the season is approximately 111746 t. This compares with 106589 t of krill reported in the STATLANT ... overlap between the krill fishery and krill predators; Consideration of the Conservation Measures in force ... in the fishery. Reference information on stock and areas, and parameters used in stock assessment are ...
Meeting Document : WG-EMM-07/05 : Auteur(s): Secretariat
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The diet of Antarctic fur seals, Arctocephalus gazella, at King George Island, during the summer–autumn period
, krill and fish were the most frequent prey, occurring in an average of 97% and 69% of samples (n=128 ... fish species associated with krill swarms. A seasonal change observed in the relative proportions of ... the different fish prey taxa would indicate that fur seals spent more time foraging over the shelf in ... summer and off shelf in autumn. During the study period commercial fishing in the area was not based upon ...
Meeting Document : WG-EMM-04/4 : Auteur(s): G.A. Daneri, A.R. Carlini, C.M. Hernandez and A. Harrington (Argentina)
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Spectra analysis of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica
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 ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ... , Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula, sea ice cover and chlorophyll-a in the ...
Meeting Document : WG-EMM-04/46 : Auteur(s): M. Naganobu and K. Kutsuwada (Japan)
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Diet of two icefish species from the South Shetland Islands and Elephant Island, Champsocephalus gunnari and Chaenocephalus aceratus 2001–2003
2001 to 2003. C. gunnari fed almost exclusively on krill (Euphausia superba) in all years. The ... importance of other taxa (Themisto gaudichaudii, mysids, myctophids) in the diet was negligible. The average ... . They were Gobionotothen gibberifrons in 2001, Lepidonotothen larseni and C. gunnari in 2002 and L ... . larseni in 2003. An ontogenetic shift in feeding preference of C. aceratus was observed: Fish smaller than ...
Meeting Document : WG-FSA-03/61 : Auteur(s): H. Flores, K.-H. Kock, S. Wilhelms (Germany) and C.D. Jones (USA)
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
Abstract: Managing fisheries to achieve ecosystem objectives is in its infancy. A general ... approach for maintaining ecological relationships and providing for the recovery of depleted populations in ... taking the ecosystem approach in managing fisheries: (i) how might fisheries impact incidentally on an ... account of uncertainties in knowledge of the structure of ecosystems. Estimates of production arising ...
Meeting Document : WG-EMM-12/P04 : Auteur(s): A.J. Constable
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Summary of holdings of Patagonian toothfish (Dissostichus eleginoides) otoliths and size-at-age estimates from Heard and McDonald Islands (Division 58.5.2)
Abstract: Scientific observers aboard vessels in the Australian fisheries in 58.5.2 have ... collected Dissostichus eleginoides otoliths since the fishery commenced in the 1996/97 season. This program ... has yielded data which has assisted with understanding age structure and growth rates of toothfish in ... 21000 otoliths have been collected from toothfish in 58.5.2, and more than 2500 otolith pairs have been ...
Meeting Document : WG-FSA-07/45 : Auteur(s): D.C. Welsford and G.B. Nowara (Australia)