Search results
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Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.4
. eleginoides) in Subarea 48.4. The assessment data are updated with the observations for the 2017/18 season and ... the data weighting method revised to be consistent with those applied in other CCAMLR assessment model ... tonnes in 2019/20 and 2020/21 is consistent with the application of the CCAMLR harvest control rule ...
Meeting Document : WG-FSA-2019/29 : Author(s): T. Earl and E. MacLeod
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Mean circulation and hydrography in the Ross Sea sector, Southern Ocean: representation in numerical models
900m at the gyral eastern end compare favourably with float data. On-shelf model depth-averaged west ... –east flow is relatively consistent with that reconstructed from longline fishing records. These flows ... have components associated with isopycnal gradients in both light and dense waters. The climate models ... reproduce characteristic isopycnal layer inflections (‘V’s) associated with the observed Antarctic Slope ...
Meeting Document : WG-EMM-10/P13 : Author(s): G.J. Rickard, M.J. Roberts, M.J.M. Williams, A. Dunn and M.H. Smith (2010)
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PROPOSAL TO STRENGTHEN CCAMLR’S PORT INSPECTION SCHEME TO PREVENT, DETER AND ELIMINATE ILLEGAL, UNREPORTED AND UNREGULATED FISHING
improve compliance with that measure. Since the Commission’s 2009 annual meeting, the FAO Conference ... its scope and the implementation of minimum standards consistent with the FAO Agreement. Moving ... towards a harmonized set of minimum standards should ultimately facilitate Members’ compliance with ... 2008 and 2009 to CM 10-03. We look forward to further discussing this proposal with Members of the ...
Meeting Document : CCAMLR-XXIX/35 : Author(s): Delegations of the USA and the European Union
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Diet and trophic niche of Macrourus spp. (Gadiformes, Macrouridae) in the Ross Sea region of the Southern Ocean
. Overall, amphipods were the dominant prey found in Macrourus spp. stomachs with an index of relative prey ... carnivorous. Other important prey were copepods (especially for fish with total length less than 30 cm), krill ... opisthopterus). Minor prey found in stomachs included isopods, mysids, salps and polychaetes, with rocks and ... ) were generally consistent with stomach contents. Carbon isotope results (δ13C =-24.7±0.8‰) were ...
Meeting Document : WG-EMM-12/P03 : Author(s): M.H. Pinkerton, J. Forman, D.W. Stevens, S.J. Bury and J. Brown
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An illustrative management procedure for exploring dynamic feedback in krill catch limit allocations among small-scale management units
which simulates the “true” dynamics of the resource with tests across a wide range of scenarios for the ... here have a feedback structure, and hence are able to react and self-correct. It is important, as with ... subdivide the krill catch between SSMUs. Different MPs are then simulation tested with their performances ... average krill catches per SSMU associated with each MP. The key assumption made here is that data will be ...
Meeting Document : WG-EMM-06/28 : Author(s): É. Plagányi and D. Butterworth (South Africa)
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RESOURCES EVALUATION OF ANTARCTIC KRILL EUPHAUSIA SUPERBA DANA USING AREAL TRAWLING AND HYDRO-ACOUSTIC DATA
provided with probability methods and spatial analyses requiring knowledge of statistical distribution ... analyses procedures applied for trawling and hydro-acoustic sampling have to in compliance with the rules ... . Traditional concepts of observation system concerning the resources of krill should be further developed with ... applications of rules and parameters dealing with statistical distributions of population density, information ...
Meeting Document : WG-SAM-08/P01 : Author(s): L.A. Kovalchuk (Ukraine)
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Uncertainty in acoustic surveys of Antarctic krill
acoustic surveys. The variance in system calibration with a standard sphere was evaluated in relation to ... different standard spheres with the results of a calibration by self-reciprocity (Demer and Hewitt ... with a standard sphere were estimated as-1.2 dB and ±0.3 dB, respectively. Uncertainty in estimating ... higher than those calculated disregarding biases due to DVM, with a standard deviation of 0.6 dB ...
Meeting Document : WG-EMM-95/72 : Author(s): Demer, D.A.
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Effects of recruitment variability and natural mortality on Generalised Yield Model projections and the CCAMLR Decision Rules for Antarctic krill
Peninsula were used as proxies for recruitment variability. Simulations were run for 21 years with either no ... fishing, or with fishing at either the trigger level (gamma = 0.0103), the precautionary catch limit ... ;variable mortality" (M with a uniform distribution between 2 and 0.8, or annual survivals varying ... "escapement" rule. For the base case simulations with M=0.8 and additional recruitment CVs of ...
Meeting Document : WG-EMM-12/26 : Author(s): D. Kinzey, G. Watters and C. Reiss (USA)
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KRILLBASE: a circumpolar database of Antarctic krill and salp numerical densities, 1926–2016
database, KRILLBASE, together with environmental information, standardisation and metadata. The aim is to ... the potential uses of this database. With increasing numbers of requests for these data we here ... provide an updated version of KRILLBASE that contains data from 15194 net hauls, including 12758 with ... krill abundance data and 9726 with salp abundance data. These data were collected by 10 nations and span ...
Meeting Document : WG-EMM-17/P03 : Author(s): A. Atkinson, S.L. Hill, E.A. Pakhomov, V. Siegel, R. Anadon, S. Chiba, K.L. Daly, R. Downie, S. Fielding, P. Fretwell, L. Gerrish, G.W. Hosie, M.J. Jessopp, S. Kawaguchi, B.A. Krafft, V. Loeb, J. Nishikawa, H.J. Peat, C.S. Reiss, R.M. Ross, L.B. Quetin, K. Schmidt, D.K. Steinberg, R.C. Subramaniam, G.A. Tarling and P. Ward
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Histological study on the ovarian development of mackerel icefish (Champsocephalus gunnari) from the South Georgia Islands
-FSA-8917. CCAMLR, Hobart, Australia: 2 pp. Duhamel, G. 1994. New data on spawning, hatching ... Hourigan, T.F. and R.L. Radtke. 1989. Reproduction of the Antarctic fish Nototheniops nudifrons. Marine ... using microscopes (microscopical scale) was elaborated and adapted to correspond with the macroscopic ... (i.e., unaided visual observation) scale commonly used. The first five stages correspond with those ... individuals (45%) was found, together with a relatively low occurrence of females that spawned or were in ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 35–49 : Author(s): Macchi, G.J. and E.R. Barrera-Oro