Résultats de la recherche

1. Brief report of the joint Soviet-Australian expedition of the USSR FRV Professor Mesyatsev to the Australian fishing zone around the territory of Heard and McDonald Islands, May-August, 1987

   austral winter. Stability of the aggregation is discussed in relation to the environmental conditions. The ... ) G nicholsi (Gilber, 1911) G. opisthopterus Fraser-Bruhner,1949 Krefftichthys anderssonii ... assessment of the detected aggregation of C. gunnari is given. Le compte rendu des resultats de la ... premiere expedition conjointe URSS-Australie dans la zone de peche australienne aux alentours du ... continental de Heard etaient favorables a la formation de concentrations commerciales de Champsocephalus ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 75-103 : Auteur(s): Gherasimchook, V.V., V.N. Brodin, A.V. Kljausov, I.B. Russelo, P.V. Tishkov and N.B. Zaremba

2. Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of mass and time of arrival of adults

   , there was substantial correlation in the numbers of adults breeding at study colonies of macaroni ... conditions may also affect breeding success. Trends in breeding success between study colonies were more ... Oscillation event of 1997/98, there was no significant correlation in mass on arrival between the two species ... oiseaux reproducteurs. Chez ces deux espèces, la date d’arrivée des femelles au site de reproduction et ... lors de la reproduction et pourraient, à ce stade, être plus influencés par les phénomènes ... pueden afectar la proporción de aves que se reproducen. Para ambas especies, la correlación entre el ... éxito de la reproducción y la fecha de arribo de las hembras a la colonia de reproducción, y en el caso ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 175–190 : Auteur(s): Crawford, R.J.M., B.M. Dyer, J. Cooper and L.G. Underhill

3. Small scale krill surveys: simulations based on observed euphausiid distributions

   aggregations. Calculations based on the power of surveys to reliably detect changes in mean density indicate ... be required to detect changes of 40% in the mean if CVs are as high as those obtained in the ... la modelisation des effets de l'orientation et de la fonne des essaims de kriU sur le succes de deux ... propositions de modeles de campagnes d'evaluation. La simulation met en jeu un certain nombre de voies ... quatre rotations. Les resultats indiquent que le coefficient de variation (CV) de la den site moyenne du ... , fondes sur la capacite qu'ont les evaluations de deceler les changements de den site moyenne d'une ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Auteur(s): Agnew, D.J. and S. Nicol

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

   whether a feedback approach is likely to achieve the multiple objectives that EBM implies in the complex ... Control (MPC) to achieve objectives for a harvested species, its predators and the fishery, in a ... spatially resolved annual catch limits in response to estimates of the state of the system. It suggests that ... species is: 1, 1 2, 1 k k P P + + é ù ê ú ê ú ë û = 1 2 1, 2. 0 0 M k M k Pe Pe ... multiple variables, e.g. de la Mare and Constable, 2000) will adequately indi- cate the state of the ... predators of fished species. CCAMLR Science, 8: 37–64. Constable, A.J., W.K. de la Mare, D.J. Agnew, I ... , Thailand, 4 to 8 February 2020. FAO Fisheries Report, No. 672. FAO, Rome: 55–92. de la Mare, W.K. and ...

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

5. Analysis of haul data from the South Georgia krill fishery

   :  Data from individual hauls carried out by vessels operating in the South Georgia krill fishery between ... focused, operating in a limited area along the shelf edge on the northern coast of the island. Each day ... several hauls were undertaken by each vessel (average 7.9 in 1993,9.9 in 1995, and 7.0 in 1996), with ... variability are discussed in relation to previous attempts to model fisheries data and to derive suitable ... ayant pi3che le krill pres de la Georgie du Sud entre 1994 et 1996 et presentation d'une serie de ... valeurs refletant les operations de la pccherie. Ces donnees soulignent que dans cette region la p@che ... de krill etait localisee, dans un secteur longeant la bordure du plateau sur la c6te nord de l'ile ... 1996), et les taux de capture les plus eleves sont ceux des chalutages effectues vers le milieu de la ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Auteur(s): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes

6. Target strengths of krill at 136 and 20 kHz

   . At the same frequency for aggregations with mean lengths in the range 41 to 47 mm the mean single ... -krill target strength is in the range-76 to-81 dB. File:  08-Kasatkina.pdf ... en ensonifiant le kriU vivant en enceinte, par la methode de chalutage acoustique. Ensonification de ... , Kaliningrad 236999 CIS 141 Resumen Se calcul6 la potencia de blanco mediante la insonificaci6n de ... media de 45 a 50 mm, la potencia media del blanco de un ejemplar oscil6 entre -68 y -69 dB a 136 kHz ... ; para las tallas medias de 43 a 47 mm, la potencia del blanco de un ejemplar fue -71 a -77 dB a 20 kHz ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Auteur(s): Kasatkina, S.M.

7. 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

   relate potential krill yield to a pre-exploitation survey estimate of krill biomass. In this paper, the ... fishing mortality, as specified by the Fourth Meeting, results in marked reductions in the probabilities ... , seiialado en el grafico como 'old', la talla cuando la vulnerabilidad es 50%, ! : O , se toma de U ... complement au modPle d'exploitation de Beddington et Cooke (1983) etablissant la relation entre le rendement ... potentiel du krill et l'estimation de la biomasse du krill provenant d'une campagne d'evaluation anterieure ... le plus important. Les auteurs fournissent les resultats du calcul de probabilite que la biomasse ...

   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

8. Status of krill target strength

   aggregations of live euphausiids and should not be affected by a frequent cause of bias in single-animal ... , acoustic frequencies and orientation parameters. Resume Les estimations empiriques de la reponse ... individus, a savoir l'identification du seuil. Les estimations theoriques de la reponse acoustique sont ... la reponse acoustique du krill a l'avenir. Basees sur les comparaisons, les courbes generales de ... prediction de la reponse acoustique presentees sont applicables a tout un eventail de longueurs, de ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Auteur(s): Foote, K.G., D. Chu and T.K. Stanton

9. Line weights of constant mass (and sink rates) for Spanish system Patagonian toothfish longline vessels

   with seabirds. The weights typically used are collections of rocks enclosed in netting bags. During ... the option of substituting steel weights for rock weights while remaining in compliance with the sink ... loss by toothed whales) were tested in the experiment. Spanish-system longlines with 8 kg rock weights ... from 0.68 m s –1 (4 kg rocks) to 1.31 m s –1 (8 kg steel) in the shallow depth ranges. Hydrodynamically ... Robertson et al. 94 Résumé La mesure de conservation 25-02 de la CCAMLR exige que les navires utilisant ... s'abrasent sur le fond de la mer, les pierres se perdent et les lests deviennent de plus en plus légers et ... de type espagnol pour déterminer le rapport entre la vitesse d'immersion de palangres équipées de ... but de l'expérience était d'offrir aux armateurs la possibilité de substituer des lests en acier aux ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 93–106 : Auteur(s): Robertson, G., C.A. Moreno, E. Gutiérrez, S.G. Candy, E.F. Melvin and J.P. Seco Pon

10. Age and growth of Antarctic euphausiacea (crustacea) under natural conditions

    years for the krill Euphausia superba. Growth in length and weight was calculated by non-linear ... regressions. No difference in growth of krill was observed between the Antarctic Peninsula area and the ... and generation time of each species is given. In general, Antarctic euphausiids seem to remature and ... spawn at least twice and in some cases three times during their life, except for E. frigida which spawns ... krill Euthausia superba. Growth in length and weight was ca culated by non-linear regressions. No ... euphausiaces antarctiques provenant de la Peninsule Antarctique et du sud-est de la mer de Weddell ont ete ... etudiees. La fourchette de longevite est comprise entre deux ans pour Euphausia frigida et six ans pour ... non-lineaires. Aucune difference de croissance du krill n'a ete observee entre la region de la ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Auteur(s): Siegel, V.

Pages