Search results
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Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985
the onset ot large scale commercial exploitation at Lhf> end of the 1960s Lhe c-,pecies 1,>as probably one ... Paper Title: Preliminary results of investigations of the Federal Republic of Germany on ... further basic data needed for stock assessment purposes, to assess the actual size of Notothenia rossii ... around South Georgia and Elephant Island and the extent to which the measures adopted by CCAMLR to ... rebuild the stock around South Georgia might be successful. Although reported catches in recent years have ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Author(s): Kock, K.-H.
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Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile
shery. Damaged catch Three types of evidence were found on the hooks after depredation on the line ... Paper Title: Operational interactions of sperm whales and killer whales with the Patagonian ... industrial fishing vessels between April 2002 and March 2003. For the 180 hauls monitored, the evidence of ... = 3). The mean rate of depredation was 3% (±2% CI 95%; n = 180 sets) and ranged between 0 and 100 ... %. Considering that no interactions were recorded in 153 (84%) of the effectively monitored sets, and that the ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Author(s): Hucke-Gaete, R., C.A. Moreno and J. Arata
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
starting to determine how salps fit into the food web. Rather than being an ‘ecological dead end ... approach to CO2 emissions (IS92a), SO surface waters may begin to become uninhabitable for aragonite ... content, from ~10% of dry mass at the end of winter to ~50% at the end of summer (Hagen and Schnack ... functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract / Description: There is ... overview is provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance ... , distribution and feeding. Second, advice is provided on the uses, strengths and limitations of zooplankton data ... as inputs to SO data compilations or food-web models. Copepods overall comprise >75% of the SO ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Author(s): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
000 iterations after a burn-in of 1 000 iterations, thinning at intervals of 50. Con- vergence ... Paper Title: Analysis of variability of krill size and fish by-catch in the Japanese krill ... fishery based on scientific observer data Abstract / Description: To estimate the optimal relative sample ... size of scientific observer data collected on Antarctic krill commercial fishing vessels, the ... . Observer datasets from the Japanese krill fishery from 1995 to 2008 were analysed using a hierarchical ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Author(s): Okuda, T. and M. Kiyota
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
, but if they are near the end of their trip they may con- tinue, particularly if the detection does not involve ... . Starting and ending dates are the first and last days on which the vessel is patrolling the region ... . Vessel Starting date Ending date One 30 44 Two 60 74 Three 90 104 Four 120 134 Five 150 164 Six ... Paper Title: An alternative method for estimating the level of illegal fishing using simulated ... effort is put forward. The results from this new method are similar to those of the Agnew and Kirkwood ... (2005) method, and this suggests that the current method is adequate under circumstances of low evasion ... and when good knowledge exists that zero observations reflect zero illegal fishing. The new method ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Author(s): Ball, I
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Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
from the recruitment time series generated as model output after running the GYM supplied ... projections and the CCAMLR decision rules for Antarctic krill Abstract / Description: The generalised yield ... model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... (Euphausia superba) fishery. The current precautionary catch limit was based on supplying the GYM with a ... supplied to the GYM as the ‘vector of recruitments’ input option to simulate the population dynamics of ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Author(s): Kinzey, D., G. Watters and C.S. Reiss
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A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery
Control of the Antarctic krill fishery Abstract / Description: CCAMLR aims to develop a feedback approach ... whether a feedback approach is likely to achieve the multiple objectives that EBM implies in the complex ... Control (MPC) to achieve objectives for a harvested species, its predators and the fishery, in a ... simulation model that incorporates uncertainty and spatial and trophic complexity. The approach adjusted ... CCAMLR aims to develop a feedback manage- ment approach for the Antarctic krill fishery in the Scotia ... ). CCAMLR is committed to managing the fishery according to conservation principles that articulate the ... therefore overcome important challenges, including: (i) the need to meet multiple objectives for krill ... , its predators and the fishery (Grant et al., 2013); (ii) the complex spatial structure and signifi ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Author(s): Hill, S.L. and M. Cannon
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Comparative feeding ecology of Patagonian toothfish (Dissostichus eleginoides) in the southwestern Atlantic
of D. eleginoides, discarded by commercial fishing vessels after processing, were found as prey and were included ... the southwestern Atlantic Abstract / Description: The diet of Patagonian toothfish (Dissostichus ... eleginoides) was investigated in two offshore regions in the southwestern Atlantic: on the Argentinian ... °-45°W. The South Georgia area was divided into two zones: the shelf zone and deep-water zone. On the ... Argentinian continental shelf/slope, the length of D. eleginoides ranged from 30 to 95 cm total length (TL ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 105–124 : Author(s): García de la Rosa, S.B., F. Sánchez and D. Figueroa
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Myctophids in the diet of Antarctic predators
and Popkov, 1987). Myctophids apparently represent the second largest (after krill) and most widely ... Paper Title: Myctophids in the diet of Antarctic predators Abstract / Description: The aim of ... the present study is to review published data on the diet of various top predators (birds, seals ... , whales, fish and squids) in order to help evaluate the importance of myctophids in their diets. This ... review covers publications for the period since 1984-85 to the present. In total, over 50 publications ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 335–368 : Author(s): Sabourenkov, E.
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Estimating optimal observer coverage in the Antarctic krill fishery
and time is good, particularly towards the end of the time period (Figure A1). results Mean krill ... Paper Title: Estimating optimal observer coverage in the Antarctic krill fishery Abstract ... / Description: Data collected as part of the CCAMLR Scheme of International Scientific Observation from ... components analysis (VCA) to determine the relationship between observer coverage and our ability to reliably ... estimate parameters of interest, in this case the mean (or median) krill length and the rate of larval fish ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 139–154 : Author(s): Agnew, D.J., P. Grove, T. Peatman, R. Burn and C.T.T. Edwards