Resultados de la búsqueda
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Introduction to the Generalised Yield (GY) model: a user guide
Author(s): A.J. Constable and W.K. de la Mare (Australia) Title: Introduction to the Generalised ... Yield (GY) model: a user guide Approval: Approved ...
Meeting Document : WG-FSA-98/21 : Autor(es): A.J. Constable and W.K. de la Mare (Australia)
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Results of a hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1 carried out in January to April 1996
detected were found in the top 80 metres of the water column. Author(s): Higginbottom, I., de la Mare, W ... Abstract: In January-March 1996 a hydroacoustic survey for Antarctic krill was conducted in ... surveyed (873,000 km2) was estimated to be 6.67 million tonnes with a CV of 27%. Krill were more abundant ... ., Pauly, T., Nicol, S. Title: Results of a hydroacoustic survey of Antarctic krill populations in CCAMLR ...
Meeting Document : WG-EMM-96/28 : Autor(es): Higginbottom, I., de la Mare, W., Pauly, T., Nicol, S.
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An overview and some preliminary results of a biological/oceanographic survey off the coast of East Antarctica (80-150°e) carried out in January to March 1996
measured and provides an overview of some preliminary results. Author(s): de la Mare, W., Wright, S ... Abstract: A major biological/physical survey of the waters off East Antarctica was carried out ... CCAMLR Statistical Area 58.4.1 but in addition, measurements were also made on a whole suite of ... preliminary results of a biological/oceanographic survey off the coast of East Antarctica (80-150°e) carried ...
Meeting Document : WG-EMM-96/29 : Autor(es): de la Mare, W., Wright, S., Bindoff, N., Thiele, D., Pauly, T., Gillespie, D., Woehler, E., Nicol, S.
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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
., Higginbottom, I., Hosie, G., de la Mare, W.K., Nicol, S. Title: A comparison between the estimated density of ... part of a hydroacoustic biomass survey for Antarctic krill in CCAMLR Division 58.4.1. The acoustic ...
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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A generalised model for evaluating yield and the long term status of fish stocks under conditions of uncertainty
regime is introduced. Author(s): de la Mare, W.K., Constable, A.J. Title: A generalised model for ... Abstract: This paper presents a flexible structure for a general yield model, which provides ... fishing on the estimates of yield per recruit. Also, it can be used to evaluate the performance of a stock ... under a specified catch regime. The model uses an adaptive Runge-Kutta procedure to evaluate stock ...
Meeting Document : WG-FSA-95/41 : Autor(es): de la Mare, W.K., Constable, A.J.
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Towards a new method for age determination in Antarctic krill, and evidence that krill shrink under natural conditions
. Author(s): W. de la Mare (Australia) Title: Towards a new method for age determination in Antarctic ... summer show an apparent linear relationship between crystalline cone number and body-length. From a ... be a more reliable indicator of age than body-length alone. The ratio of crystalline cone number to ... body-length offers a method for detecting the effect of shrinking in natural populations of krill. On ...
Meeting Document : WG-Krill-94/17 : Autor(es): W. de la Mare (Australia)
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
fishing season and spawning season will result in less bias occurring. Author(s): de la Mare, W.K ... , while the second is a generalised yield model. The decision rules relate to the effects of a specified ... long-term annual yield (γ) on (i) the probability of the spawning stock being reduced below a set ... proportion of SB0 during a projection run (probability of critical depletion) and (ii) the median status of ...
Meeting Document : WG-EMM-97/45 : Autor(es): de la Mare, W.K., Constable, A.J.
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Independent reviews of CCAMLR stock assessments – a discussion paper
Abstract: In 2013 the Commission endorsed the Scientific Committee’s recommendation to develop a ... understand that the Scientific Committee will be discussing possible avenues to achieve this goal. We believe ... on this topic and supporting the Scientific Committee in their development of a procedure ... as a mechanism for transparency of the stock assessment process, particularly if reports of such ...
Meeting Document : SC-CAMLR-XXXV/BG/20 : Autor(es): Delegation of the USA
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A condensed history and document of the method used by CCAMLR to estimate krill biomass (B0) in 2010
model and krill yield model (Constable and de la Mare, 1996; Butterworth et al. 1994). A key parameter ... Antarctic marine food web, being prey to a wide variety of dependent species as well as being commercially ... , 48.2, 48.3 and 48.4 (Hewitt et al. 2004; Watkins et al. 2004). The design, planning, implementation and ... survey design, implementation and original analysis (CCAMLR 1999; 2000). Since 2000 a number of re ...
Meeting Document : WG-EMM-16/38 : Autor(es): S. Fielding, A. Cossio, M. Cox, C. Reiss, G. Skaret, D. Demer, J. Watkins and X. Zhao
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Background information to support development of a feedback management strategy for the krill fishery in Subarea 48.1
information needed to support development of a feedback management strategy for the krill fishery in Subarea ... larger management units. We believe that identifying management areas that are larger than SSMUs within ... Subarea 48.1 will both facilitate and expedite the allocation of a catch limit in the subarea without ... concentration mechanisms aggregate krill in fishable quantities above the background concentration. We use a ...
Meeting Document : WG-EMM-16/45 : Autor(es): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries