Résultats de la recherche

1. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

   -year period of harvesting are shown primarily in graphical form, with this probability plotted ... the growth curve form used by Rosenberg et al. (1986), together with the assumption that mass is ... of the form: For the models considered here, a fishing season from tl to t2, and an effective ... : while predation loss over the whole year is evaluated from an expression of the form: which here takes ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Auteur(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew

2. Temporal variability and the interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island

   Adélie penguins at Béchervaise Island Abstract / Description:  Temporal variability in a series of CCAMLR ... F FT 0. 47 0. 30 0. 43 -0 .6 7 M al e d ep ar ts o n SF T 0. 02 ... después de la puesta parece ser la primera indicación de que el éxito reproductor será bajo. Los ... 90 30 / 11 / 19 90 05 / 12 / 19 90 20 / 12 / 19 90 25 / 11 / 19 90 18 / 12 ... 07 / 12 / 19 92 30 / 12 / 19 92 26 / 11 / 19 92 8/ 12 / 19 92 16 / 2/ 19 93 ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 75–90 : Auteur(s): Emmerson, L.M., J. Clarke, K.R. Kerry and C. Southwell

3. Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region

   ______________________________________________________________________ 1 Note that the CCAMLR management season is from 1 December to 30 November. In this report, the ... to 30 November 1997 is labelled the 1997 year. 21 Spatially explicit population dynamics ... Within each spatial cell, the number of tooth- fish in the population model aged 2 to 30 was recorded ... separately, with a plus group at age 30. Also recorded was the population at each repro- ductive category ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Auteur(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker

4. CPUE indices used in Soviet krill fishery statistics from 1977 to 1992 and their possible utility for evaluation of relative changes in krill biomass

   ). Accordingly, CVDF was very widely used, and most CPUE data were presented in this form. An index of catch ... 0 2 4 6 8 10 12 14 16 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Catch per vessel ... 1986 to 1991 (RIF statistics). 0 5 10 15 20 25 30 35 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ... od 0. 12 53 19 1 29 6 0. 30 26 04 0. 08 93 5 44 3 0. 91 15 98 0. 18 41 ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 165–177 : Auteur(s): Litvinov, F.F., A.Z. Sundakov and V.I. Arkhipov

5. A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery

   ) provides output in the form of measurable state variables such as biomass and, trivially, catch. An ... ) where ( ). denotes the expectation operator and 2 Q x denotes the quadratic form Tx Qx. The vec ... represent the dynamics of real ecosystems. The operating model can be written in the gen- eral form ... simulations. Parameter Value MPC prediction horizon N = 20 Input bounds Umin = [400 400]T Umax = [1 000 ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Auteur(s): Hill, S.L. and M. Cannon

6. Some principles for fisheries regulation from an ecosystem perspective

   ) Resurnen Este documento trata sobre algunos de los principios a ser considerados durante la elaboracion ... Heap (1981), distinction is made between: (a) species in the low-trophic levels which form the food ... which will lead to some form of optimum catch level. However, in practice, production models have not ... more concrete in the context of the possible form of objectives for CCAMLR discussed earlier ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 323-339 : Auteur(s): de la Mare, W.K.

7. Acoustic estimates of krill density at South Georgia, 1981 to 1998

   Islands during a season of krill scarcity. Mar. Ecol. Prog. Ser., 138: 51-61. Brierley, A.S., J.L ... . Ecol. Prog. Ser., 150: 87-98. Brierley, A.S., J.L. Watkins and C. Goss. 1997%. Krill biomass ... abundance. Mar. Ecol. Prog. Ser., 176: 63-79. studies. In: Sahrhage, D. (Ed.). Antarctic BIOMASS. 1986 ... . Post-FIBEX Acoustic Workshop. Ocean and Resot~rces -variability. Springer- BIOMASS Rep. Ser., 40 ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Auteur(s): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson

8. Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen Islands areas

   t :;::55 '! ,"") . .; ~z ~I ~._ \- ···t· ...... <..} 169 · 194 21 .:781 20 .482 160.517 30 · .:'>20 ... group also estimated that the stock could be expected to increase at an approximate rate of 30% per ... Georgia) and 30-31 (Kerguelen); the data are contained in Tables 4 and 5. 2.1 South Georgia 2.1.1 N ... 91 ,~5 47 37 31 ~52 31 30 . 28 26 25 .25 .26 .27 .27 .29 .69 = lb.803 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 229-298 : Auteur(s): Hennemuth, R.C., K.D. Bisack and G. Duhamel

9. Fishing ground selection in the Antarctic krill fishery: trends in patterns across years, seasons and nations

   population, the krill fishery, krill predators and the transport of krill, will form the basis of this ... was 30 n miles x 30 n miles x 30 days or finer). Also, fine-scale data coverage was not complete ... haul- by-haul point data, 10 n miles x 10 n mile grid data or 30 n mile x 30 n mile grid data x 10-day ... period. All data points were assigned to SSMUs (Figure 1). For the 10 n mile x 10 n mile or 30 n mile x ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 117–141 : Auteur(s): Kawaguchi, S., S. Nicol, K. Taki and M. Naganobu

10. Integrating Count Effort by Seasonally Correcting Animal Population Estimates (ICESCAPE): a method for estimating abundance and its uncertainty from count data using Adélie penguins as a case study

    based on independently measured time series of availability throughout a breeding season. Such time ... series are typically collected at only a limited number of sites, so surrogate availability information ... reference point, with sufficient frequency in the time series to allow the functional form of the ... closed- form solution when multiple sources of bias and uncertainty, each of which may have their own ... -driven suite of routines es lo suficientemente general como para ser fácilmente adaptado a otras ... by the form of the species-specific availability function. For Adélie penguins, the upper bound for ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Auteur(s): McKinlay, J., C. Southwell and R. Trebilco

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