Resultados de la búsqueda
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
scale, Macrourus whitsoni and M. caml seem to be almost completely sympatric by depth and area, with ... either species. Gonad staging data imply that the spawning period of both species may be extended ... of the two species of 94% overall. We found that total length (TL) was no less precise a measurement ... both appearing to be abundant between depths of 900 and 1900 m. There was a small but significant ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Autor(es): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)
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The applicability of international conservation instruments to the establishment of marine protected areas in Antarctica
that have relevance to marine protected area (MPA) development provide for action to be taken globally ... with global work to develop high seas protected areas should be undertaken to achieve the goal of a ... , depending on their specific provisions, full application in Antarctic waters may be difficult, inappropriate ... concluded that although direct application of other international conservation agreements is in most cases ...
Meeting Document : WG-EMM-04/32 : Autor(es): S. Grant (United Kingdom)
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Introducing Casal2 for toothfish stock assessments
constructed. Casal2 models can be used for a single population with a single anthropogenic event (i.e., a ... github website. We also suggest that one or multiple assessments of toothfish be included in the Casal2 ... model that allows more flexibility in specifying the population dynamics, parameter estimation, and ... model outputs than CASAL. Models are built with user-defined categories such as area, sex and maturity ...
Meeting Document : WG-SAM-18/14 : Autor(es): S. Mormede
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ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
formula with the variance terms derived from the Bayesian model. For both krill length and bycatch fish ... CV. The results of this study suggest that scientific data collectionby commercial fishery is an ... rising cost of observer program. Author(s): T. Okuda and M. Kiyota (Japan) Title: ANALYSIS OF ...
Meeting Document : WG-EMM-11/39 : Autor(es): T. Okuda and M. Kiyota (Japan)
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Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using the Japanese fishery data
vertical migration of Antarctic krill (Euphausia superba) associated with the brightness categories of the ... smaller around at daytime during summer in SS and SO. Daily average trawling depth tended to be shallower ... middle autumn and winter in each brightness category. Author(s): K. Taki, T. Hayashi and M. Naganobu ...
Meeting Document : WG-EMM-04/44 : Autor(es): K. Taki, T. Hayashi and M. Naganobu (Japan)
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Revised assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005–2014
fish tagged in 2012, and a catch at age model including the data with a single age length key applied ... was calculated at 30 tonnes. The fishing bias to the shallow areas should be avoided because the ... projection period in the model. Author(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan ...
Meeting Document : WG-FSA-15/22 : Autor(es): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Principles for evaluating data collection plans in data-poor exploratory fisheries
Abstract: Since 1992, CCAMLR has agreed that exploratory fishing is not to be allowed to expand ... faster than the acquisition of information necessary to ensure that the fishery can and will be conducted ... in accordance with the principles set forth in Article II of the Convention. However, several times ... over the last five years the Scientific Committee has noted with concern the lack of progress in ...
Meeting Document : WG-SAM-11/08 : Autor(es): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)
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SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY
uncertainty associated with historical counts be faithfully incorporated and preserved, and methods have been ... of that kind. The present study attempts to implement this estimator in the form of a parametric ... being presented in a specified format congruent with CCAMLR databases designed to store historical ... associated with combining diverse data collected in a variety of ways over many decades. Of particular ...
Meeting Document : WG-EMM-PSW-08/11 : Autor(es): J.P. McKinlay and C.J. Southwell (Australia)
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KRILL FISHERY REPORT: 2008 UPDATE
preliminary estimate of the total catch of krill for the season is approximately 108343 t. This compares with ... 104586 t of krill reported in the STATLANT data for 2006/07. With the exception of Poland, all ... for krill in Area 48 in the 2007/08 season, and these vessels have taken 84110 t of krill to date. The ...
Meeting Document : WG-EMM-08/05 : Autor(es): Secretariat
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DISTRIBUTION AND ABUNDANCE OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
000 t, about 20% has been taken from the northern grounds, 70% from the continental slope, and 10 ... . In preparing this paper we have identified some data sources which could potentially be used to ... fishing ground would also be difficult to interpret because of the movement of tagged fish. There is also ... by other research sampling. Indirect observations from cameras mounted on seals shows that Antarctic ...
Meeting Document : WG-EMM-09/40 : Autor(es): S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)