Résultats de la recherche

1. Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile

   eleginoides) fishery operations were assessed in southern Chile during surveys with observers on board ... %. Considering that no interactions were recorded in 153 (84%) of the effectively monitored sets, and that the ... Sep Oct Nov Dec Month S pe rm w ha le s (in di vi du al s) 0 10 20 30 40 50 60 70 ... 80 90 E ffo rt ( ha ul s ob se rv ed ) (a) 0 5 10 15 20 25 30 35 40 45 Jan Feb ... 20 30 40 50 60 70 80 90 E ffo rt ( ha ul s ob se rv ed ) (b) (a) (b) Hucke ... le ng th ( m m ) (a) y = 6.2936x + 173.06 R2 = 0.8552 0 5 10 15 20 25 30 40 50 60 70 ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Auteur(s): Hucke-Gaete, R., C.A. Moreno and J. Arata

2. Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990

   discussions and analyses of the data from a survey from MV Hill Cove in January 1990 and RV Akademik Knipovich ... in February 1990 around South Georgia. Both surveys were characterized by large numbers of small ... increase in the estimated standing stock of Champsocephalus gunnari. The paper describes the ways in which ... these large hauls were considered in the analysis. No ideal method was found for incorporating the large ... difficulty in the area to the southern part of the west shelf (squares 19 and 20). The reports of the two ... USSR participants, who were involved in preparations for the workshop. The Convener expressed the ... ci z 70 60 50 40 30 20 10 0 f 0 1 2 3 4 5 6 7 Catch (tonnes) of C. gunnarl One ... B Use mean of all values in 53°30'S, 36°W and 54°00'S, 35°W 54 30 39 C Use mean of all values in ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Auteur(s): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)

3. Discrimination of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) using otolith morphometrics

   fishery in the Ross Sea region is comprised of two species, rather than being solely Macrourus whitsoni ... , was recognised in 2010 with the identification of a new species, M. caml. Grenadier are the main by ... -catch in the toothfish fishery and modelling suggests that they may be subject to predation release as ... the abundance of toothfish reduces. In order to improve information on the spatial distribution, age ... 80 60 40 20 0 10 20 30 40 50 60 70 Age (years ... Year Census of Antarctic Marine Life (IPY- CAML) voyage in 2008 led to the identification of a new ... and morphology with somatic growth and age in young-of-the-year bluefin tuna. J. Fish Biol., 68 (6 ... . caml (Gadiformes, Macrouridae) in the Ross Sea region. CCAMLR Science, 20: 37–61. Russ, J.C. 1990 ...

   Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 15–28 : Auteur(s): Pinkerton, M.H., C. Ó Maolagáin, J. Forman and P. Marriott

4. Preliminary study on nesting Adélie penguins disturbance by unmanned aerial vehicles

   Abstract / Description:  The importance of unmanned aerial vehicles (UAVs) in remote sensing is rapidly ... growing. However, knowledge about their potential impact on wildlife is scant, especially in Antarctica ... , where they are a new tool used in ecological research and monitoring. In this preliminary study ... potential effects of wildlife disturbance by fixed-wing UAVs are investigated. In austral summer 2014/15 ... disturbance by UAVs   Resting Comfort Vigilance/anxiety Aggression 100 90 80 70 60 50 40 30 20 ... . The best option is a 20–30 minute recording with the overflight around its midpoint. • Noise ... hexacopter hovering at an altitude of 30 m was lost in the background (Goebel et al., 2015). Pomeroy et al ... im pa ct Tr at ha n et a l., 20 14 A dé lie p en gu in (P yg os ce lis a ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 1–16 : Auteur(s): Korczak-Abshire, M., A. Kidawa, A. Zmarz, R. Storvold, S.R. Karlsen, M. Rodzewicz, K. Chwedorzewska and A. Znój

5. The survivorship of rays discarded from the South Georgia longline fishery

   sea surface by the Chilean fishing vessel Isla Sofía in May and June 2003 during the toothfish fishing ... season in Subarea 48.3. Capture depth had a consistently significant influence on the mortality of skates ... ) and the sex of rays also had some small influence on survivorship. Discard survivorship was 75% in ... waters shallower than 1 300 m (i.e. 1 200–1 300 m), 46% in waters 1 300–1 500 m, and 24% in waters ... 20 0 Endicott and Agnew 160 Table 4: Results of a binomial GLM in S-plus examining the ... surface by the Chilean fi shing vessel Isla Sofía in May and June 2003 during the toothfi sh fi shing ... season in Subarea 48.3. Capture depth had a consistently signifi cant infl uence on the mortality of ... % in waters shallower than 1 300 m (i.e. 1 200–1 300 m), 46% in waters 1 300–1 500 m, and 24% in ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Auteur(s): Endicott, M. and D.J. Agnew

6. 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 ... 0 0.0 0.1 20% change in mean density 30% 40% 50 ... and number of transects required to confidently detect changes in mean densities of 20 to 50 ... on the power of surveys to reliably detect changes in mean density indicate that with probability ... detect changes of 40% in the mean if CVs are as high as those obtained in the simulations. Resume ...

   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

7. The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design

   will take several years and will result in a significant increase in the knowledge of krill length ... krill which are used in models to estimate sustainable yield in Area 48. The survey design includes two ... large-scale oceanic strata: one in the southwest Atlantic located in the Scotia Sea, and the other to ... these large-scale strata, four mesoscale strata were included in the survey design; these were located ... was to improve estimates of the pre- exploitation biomass of krill which are used in models to ... estimate sustainable yield in Area 48. The survey design includes two large-scale oceanic strata: one in ... the southwest Atlantic located in the Scotia Sea, and the other to the north of the Antarctic ... mesoscale strata were included in the survey design; these were located close to the South Sandwich Islands ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Auteur(s): Trathan, P.N., J.L. Watkins, A.W.A. Murray, A.S. Brierley, I. Everson, C. Goss, J. Priddle, K. Reid, P. Ward, R. Hewitt, D. Demer, M. Naganobu, S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly

8. Status of the FIBEX acoustic data from the West Atlantic

   :  Data from the FIBEX acoustic survey in the West Atlantic sector have been re-examined to check the ... -92/20 was updated before publication in Selected Scientific Papers, 1992 (SC-CAMLR-SSPI9) (Trathan ... which have been the focus of commercial fishing activity in recent years (Everson and Goss, 1991 ... , Madingley Road Cambridge CB3 OET, United Kingdom Abstract Data from the FIBEX acoustic survey in the ... , BIOMASS, acoustic data, CCAMLR INTRODUCTION In 1991 the Commission for the Conservation of Antarctic ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Auteur(s): Trathan, P.N. and I. Everson

9. Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)

   scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... - 14.8-38 cm). Otolith and scale readings have been compared in 19 Potter Cove specimens. In some cases ... between false and annual checks in scales. Age determination by otolith cross sections proved to be the ... those in the same age group around South Georgia. Likewise, our values are lower than the ones reported ... compared in 19 Potter Cove specimens. In some cases scale readings gave a result of one year more. This ... ~ N 0'= 42 0 8 r ~n N~ = 53 ~ 6 4 z 2 ---- >- 14 16 18 20 22 24 26 28 30 32 34 36 38 u z t4 ... w :::> 12 ~ iO t N cf= 15 0 0::: 8 r B ~ I.L N~ = 22 6 4 2 14 16 18 20 22 24 26 28 30 ... Georgia area, the reported data on age determination are well comparable in age groups up to 9 years ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Auteur(s): Barrera-Oro, E.

10. Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the Southern Ocean Atlantic sector

    the Weddell water masses that meet and mix in this region. Evident at smaller spatial scales are the ... general trend (see also Lockhart and Jones, 2006). Piegraphs 30, 34 and 45 in Figure 4 represent the ... approximately 20–30 cm (Gutt and Starmans, 2001; Gutt and Piepenburg, 2003; Teixidó et al., 2004 ... meet and mix in this region. Evident at smaller spatial scales are the effects of disturbance regimes ... thwarted by sparse records. Even where advances in both have been so great as to allow the delineation of ...

    Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 167–192 : Auteur(s): Lockhart, S.J. and C.D. Jones

Pages