Search results
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
). These sim- ulations aimed to realistically represent the HIMI toothfish fishery. Candy (2011) found ... error, albeit generated by a sim- plified error process, it was found that there was only a minor ... of this parameter for the entire stock at HIMI were found to be in the range 2.8 to 4.5 million by Candy ... esti- mates of M, it was found that these two estimates were highly correlated. Similarly, M would ... trawl ground at HIMI were used to estimate M. Catch and releases by age class for this fishery were ... were used to obtain recapture numbers by age class. Two alternative estimation models were programmed ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Author(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins
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Commercial fishing vessels as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel
– olavrune@imr.no C. Reiss National Oceanographic and Atmospheric Administration Southwest Fisheries ... exploit high concentrations of krill found in coastal and shelf areas. CCAMLR man- agement is still ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 11–17 : Author(s): Godø, O.R., C. Reiss, V. Siegel, J.L. Watkins
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
constants (Love, 1971; Nakken and Olsen, 1977; Foote, 1987). The regres- sion coefficient m has been found ... analysed. These conditions on size and species compo- sition were found only in nine of 131 examined ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Author(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Trawl selectivity for Champsocephalus gunnari
calculated using the collected data. It was found that the selectivity factor for 88.2 mm mesh size was 2.81 ... curves were calculated using the collected data. It was found that the selectivity factor for 88.2 mm ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 69–75 : Author(s): Efanov, S.F., G.E. Bidenko and V.A. Boronin
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Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers
-regions of the mitochondrial genome. Polymorphisms were found in four of seven introns digested ... . Polymorphisms were found in four of seven introns digested with the restriction enzymes ... were found in four of seven introns digested with the restriction enzymes, but there was no population ... ) and the Patagonian tooth fi sh (D. eleginoides); both are circumpolar in distri- bution. D. mawsoni is found at high ... found in the Ross Sea sample may prove to be a private allele indicating some sub-population division ... . Nuclear DNA introns Four polymorphisms were found among the seven introns: the CK6 intron digested ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Author(s): Smith, P.J. and P.M. Gaffney
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The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design
International Whaling Commission (IWC) took part. The survey is by far the biggest single exercise ever carried ... out by Members in support of the Convention. Full analysis of the results of the CCAMLR-2000 Survey ... survey is by far the biggest single exercise Trathan et al. ever carried out by Members in support ... may be outweighed by increased complexity in terms of survey design, execution and subsequent ... the distribution is complex (illustrated by a variety of datasets and published papers e.g. Ichii et ... ensured that the survey area was uniformly covered by primary sampling units (transects) for the ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Author(s): Trathan, P.N., J.L. Watkins, A.W.A. Murray, A.S. Brierley, I. Everson, C. Goss, J. Priddle, K. Reid, P. Ward, R. Hewitt, D. Demer, M. Naganobu, S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly
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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
, Accomplishments, and Tentative Conclusions. Southwest Fisheries Science Center Administration Report U-91-18 ... . Alternatives that allocate the 1.5 million tonne limit by evenly dividing the catch among subareas or by using ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 237–249 : Author(s): Watters, G. and R.P. Hewitt
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CCAMLR ecosystem monitoring and management: future work
in a meaningful way in the near future to include predators found solely offshore, such as whales and crabeater ... of predators is primarily limited to the age groups of populations found breeding on land, and monitoring ... : Harvesting of marine living resources in the Southern Ocean is managed by the Commission for the Conservation ... procedures by summarising the gaps in the existing approach, the types of models developed for the Antarctic ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Author(s): Constable, A.J
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Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).
(3+, 4+, 5+) dominated in Antarctic Circumpolar Current (ACC) waters in the northern parts. No 1+ age cohort was found ... in the northern parts. No 1+ age cohort was found in catches in 2009 or in 2010. This absence of 1+ E. superba ... ) waters in the northern parts. No 1+ age cohort was found in catches in 2009 or in 2010. This absence ... E. frigida were found in 730 kg of samples (0.002% by weight). The size of E. frigida ranged from 15 to 24 ... older (3+, 4+ and 5+) and younger (2+, 3+) cohorts of krill were found. Furthermore, there were mixed ... , b). Swarms of large krill (average length 50–54 mm) were found in the northern parts of the surveyed area ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Author(s): Sologub, D.O. and A.V. Remeslo
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Large-scale peculiarities of phytocenosis species composition in the surface layer in the Antarctic Atlantic and Indian Ocean sectors
composition was also found near the continent (Alasheev Bay). During the observation season maximum biomass ... Circumpolar Current). A great change in phytoplankton composition was also found near the continent (Alasheev ... periphery of the Antarctic Circumpolar Current). A great change in phytoplankton composition was also found ... in samples taken at later dates. A substantial proportion of T. antarctica was also found in the south ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 201-214 : Author(s): Makarov, R.R. and K.P. Fedorov