Resultados de la búsqueda
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Preliminary assessment models of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... in a similar, though slightly higher, estimate of initial and current biomass as the 2005 base case ... model. The inclusion of the 2005 release and the 2006 recapture data had the effect of only slightly ... modifying the estimates from the models, suggesting that the new data had a similar pattern to that of ...
Meeting Document : WG-FSA-SAM-06/11 : Autor(es): Dunn, A. & Hanchet, S.M.
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An assessment strategy evaluation framework for testing the application of a CASAL based management system to the HIMI fishery
Abstract: A useful way of testing assessment methodology and related decisions is through the ... framework of management strategy evaluation and the simpler form of assessment strategy evaluation. Such a ... framework uses an operating model of the system to generate data against which the assessment model, or the ... entire management system can be evaluated against a number of suitably chosen performance measures. This ...
Meeting Document : WG-SAM-07/13 : Autor(es): I.R. Ball and S.G. Candy (Australia)
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Verification of the CMIX procedure on species with known age-length keys
Abstract: Calculation of age composition of density-at-length data produced during inventory ... surveys using the method of W.K. de la Mare (1994) is a conventional procedure in the WG-EMM and WG-FSA ... practice. Verification of the method was made on the materials on the Baltic cod collected in the ICES ... out by research vessels of Russia and other countries were used. It has been shown that divergence in ...
Meeting Document : WG-FSA-SAM 03/5 : Autor(es): P. Gasiukov (Russia)
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Preliminary results on the diet of the snow petrel Pagodroma nivea at Laurie Island, Antarctica, during the 1997/98 breeding season
Abstract: The diet of the Snow Petrel Pagodroma nivea was investigated at Laurie Island, South ... Orkney Islands, (60¡46'S, 44¡42'W), Antarctica, over the period January-February of 1998 ... . Stomach contents and regurgitates of adults were sampled during the chick-rearing period. Fish, followed ... further studies on the composition of the diet of the Snow Petrel as well as on the distribution and ...
Meeting Document : WG-EMM-00/11 : Autor(es): G. Soave, V. Ferretti, N. Coria and R. Casaux (Argentina)
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An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)
Abstract: This paper presents an assessment of the harvested population of Patagonian toothfish ... fishing season. Population models that include dynamics of tagged and un-tagged fish, daily releases ... , catches, recaptures, natural mortality, and annual net recruitment are used to assess the population of ... one of the main fishing regions of Macquarie Island: Aurora Trough. The pre-tagging abundance is ...
Meeting Document : WG-FSA-00/43 : Autor(es): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)
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THE USE OF PATENT DATABASES TO DETECT TRENDS IN THE KRILL FISHERY
over the utility of these sources of information to detect trends, and of the need to obtain more ... number and type of patents related to krill that are lodged annually. This information matches well with ... database be taken over by the Secretariat so that they can maintain an annual register of krill related ... patents which will be of use for indicating future trends in the krill fishery. Author(s): Delegation of ...
Meeting Document : SC-CAMLR-XXVIII/BG/15 : Autor(es): Delegation of Australia
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LENGTH AND AGE AT SPAWNING OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI IN THE ROSS SEA
Abstract: This study uses a histological assessment of age and length at spawning for female and ... fishing seasons. The female spawning ogive incorporates the proportion of sexually mature fish that do not ... management decision rules. A characterisation of the oocyte developmental cycle of Antarctic toothfish shows ... vitellogenic phase over at least a 6–12 month period, resulting in a developed batch of oocytes accumulating at ...
Meeting Document : WG-FSA-09/37 : Autor(es): S.J. Parker and P.J. Grimes (New Zealand)
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Establishment of a CEMP monitoring program at Bouvetøya
western coast of the island during the 1996/97 field season. Species included in the monitoring program ... (1996/97), monitoring of the following parameters were initiated for the two species of penguins ... : Breeding population size CA3), Age-specific annual survival and recruitment (A4), Duration of foraging ... Seal, the.. program includes monitoring of Duration of cow foraging/attendance cycles (C 1) and Pup ...
Meeting Document : SC-CAMLR-XVI/BG/04 : Autor(es): Delegation of Norway
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A comparison between the estimated density of krill from an acoustic survey with that obtained by scientific nets on the same survey
Abstract: This work presents the initial comparative analysis of acoustic and net haul krill ... part of a hydroacoustic biomass survey for Antarctic krill in CCAMLR Division 58.4.1. The acoustic ... found between the two data sets. Several orders of magnitudes were seen in the range of variation ... , excluding sites where krill represented less than 90% of the catch. This reduction in variation was thus ...
Meeting Document : WG-EMM-97/43 : Autor(es): Pauly, T., Higginbottom, I., Hosie, G., de la Mare, W.K., Nicol, S.
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Stomach flushing of Adelie penguins (CEMP Method A8)
the water from samples, an extension of the sampling period to include the guard phase, and that birds ... found to be empty of food be included in the data set if they are bona fide breeders. It also suggests ... that the first regurgitate of each sample be kept separate from the remainder because it often consists ... of organisms that have been collected adventitiously by the bird on its return journey to the colony ...
Meeting Document : WG-EMM-95/32 : Autor(es): Clarke, J.