Résultats de la recherche

1. Potential interactions between wandering albatrosses and longline fisheries for Patagonian toothfish at South Georgia

   continental shelf in areas very similar to where the longline fishery operates and are therefore at serious ... risk from these fisheries at this time. Until fishing methods which do not catch albatrosses are in ... comprehensive use, we recommend that the South Georgia longline fishery for D. eleginoides should be managed in ... South Georgia continental shelf in areas very similar to where the longline fishery operates and are ... albatrosses are in comprehensive use, we recommend that the South Georgia longline fishery for D. eleginoides ... should be managed in such a way as to avoid fishing between the end of February and mid-May. Resume ... in the population declines is mortality associated wi th longline fishing, especially fisheries ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 101–110 : Auteur(s): Croxall, J.P. and P.A. Prince

2. 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 ... CCAMLR aims to develop a feedback manage- ment approach for the Antarctic krill fishery in the Scotia ... spatial and temporal variability in the ecosystem and sub- stantial uncertainty in current understanding ... activities (dis- tribution and level of krill catch and/or research) in response to the state of monitored ... indicators’ (SC-CAMLR, 2011). The harvest strategies and decision rules used in modern fisheries manage ...

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

3. Some comments on the procedure for testing estimators of krill abundance which utilise survey data

   indeed likely to provide improved performance in practice. Such studies require a simple method for ... provide an encouraging improvement in fits to the distribution of inter-swarm distances observed on the ... suggestions are made in this regard. File:  11-Butterworth-et-al.pdf ... indeed likely to provide improved performance in practice. Such studies require a simple method for ... provide an encouraging improvement in fits to the distribution of inter-swarm distances observed on the ... suggestions are made in this regard. Resume Vu que les donnees sur la distribution mettent bien en ... estimation from surveys of marine resources is to place a set of transects at random in the area of interest ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Auteur(s): Butterworth, D.S., D.L. Borchers and D.G.M. Miller

4. Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish

   250-500 m depth intervals. The updated estimates are about 1 424 (20%) n miles larger in area within ... the 50-500 m isobaths than Everson's estimates, though changes in area are specific to the depth ... interval. There is a corresponding change in estimated biomass within strata when these areas are ... miles larger in area within the 50-500 m isobaths than Everson's estimates, though changes in area are ... specific to the depth interval. There is a corresponding change in estimated biomass within strata when ... biomass estimates from bottom trawl surveys using 'swept- area' models. In most cases, these types of ... estimates are a product of the strata area squared, where Hence, errors or bias in computation of seabed ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 197–204 : Auteur(s): C.D. Jones

5. Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia

   region (Subarea 48.3). In 44% of specimens, age readings from both structures were identical. A Wilcoxon ... test for paired data (Ts = 0.256, n = 59) conducted on the remaining 56% showed that differences in age ... which relates maximum observed age to natural mortality. In this case we used M = 0.13, which is the ... 48.3). In 44% of specimens, age readings from both structures were identical. A Wilcoxon test for ... paired data (Ts = 0.256, n = 59) conducted on the remaining 56% showed that differences in age estimates ... maximum observed age to natural mortality. In this case we used M = 0.13, which is the value recommended ... Shag Rocks in the west to Macquarie Island in the east (Gon and Heemstra, 1990). The bathymetric ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Auteur(s): Cassia, M.C

6. Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae

   / Description:  In summer and autumn Electrona carlsbergi feeds mainly on copepods. Daily food intake estimated ... . carlsbergi during the year in the waters to the south of the Antarctic Convergence is about 15 times fish ... CARLSBERGI (TANING, 1932) MYCTOPHIDAE O.V. Gerasimova* Abstract In summer and autumn Electrona ... fish body weight. The amount of food consumed by E. carlsbergi during the year in the waters to the ... carlsbergi (Tdning) is one of the most abundant species of the Myctophidae family living in the Southern ... in different parts of the Southern Ocean. (Kozlov, Tarverdieva, 1989; Oven et al., 1990; Tarverdieva ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 411–416 : Auteur(s): Gerasimova, O.V.

7. Chilean krill fishery: analysis of the 1991 season

   data and its use in studying small-scale spatial distribution of catches. The results show that krill ... fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of haul-by-haul data ... -by-haul data and its use in studying small-scale spatial distribution of catches. The results show ... that laill fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of ... size, distribution and composition of commercial kriU catches, including likely future trends in these ... second meeting of WG-KriU in 1990 there was some discussion on the use of haul-by-haul data (SC-CAMLR ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Auteur(s): Marín, V.H., A. Mujica and P. Eberhard

8. Choosing distance between acoustic survey tacks

   on the basis of typical size of the surveyed region, allowable relative error in the biomass estimate ... that the suggested criterion be applied in real hydroacoustic surveys. File:  08-Kalikhman-et-al.pdf ... on the basis of typical size of the surveyed region, allowable relative error in the biomass ... recommended that the suggested criterion be applied in real hyroacoustic surveys. CHOISIR LA DISTANCE ... as to provide the desired accuracy of the biomass assessment in the area, in the least time and ... with the lowest expenditure. Since the error in biomass assessment depends on the variability of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 153-164 : Auteur(s): Kalikhman, I.L., Z.I. Kizner, B.R. Zaripov and W.D. Tesler

9. Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   toothfish fishery in the Ross Sea dependency in 2002 were identified by observers and returned to New ... in the Ross Sea (CCAMLR Subarea 88.1). The zones are assumed to form annually as this ageing ... , Wellington New Zealand Abstract Samples of macrourid rattail by-catch from the toothfi sh fi shery in the ... Ross Sea dependency in 2002 were identifi ed by observers and returned to New Zealand for subsequent ... otoliths of the ridge-scaled macrourid (M. whitsoni) sampled from the commercial longline fi shery in the ... Marriott et al. 39 INTRODUCTION A target longline fi shery for Dissostichus spp. in waters in and ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Auteur(s): Marriott, P., P.L. Horn and P. McMillan

10. Toothfish, Dissostichus eleginoides, at South Georgia

    Dissostichus eleginoides fishery at South Georgia has expanded greatly in recent years. It has been claimed ... longliner in January 1990 indicates that the fish are sexually mature and, at the time of sampling, are ... Georgia has expanded greatly in recent years. It has been claimed that the exploited fish are senescent ... examination of the gonads of a small sample of fish taken from a commerciallongliner in January 1990 ... that a TAC of 1200 tonnes be set for Dissostichus eleginoides in Subarea 48.3. That estimate was based ... longline fishery was justified (CCAMLR-VIII, paragraph 106). We know of no fishery anywhere in the World ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 255–261 : Auteur(s): Everson, I. and S. Campbell

Pages