Résultats de la recherche

1. Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl

   Paper Title:  Krill distribution in the western Atlantic sector of the Southern Ocean during 1983 ... -Kidd midwater trawl Abstract / Description:  In this paper we consider the results of three mesoscale ... Island. Surveys including from 158 to 202 stations were carried out by Soviet research vessels in the ... summer-autumn periods of 1983/84 and 1987/88 and in the spring-summer of 1984/85 using a grid of stations ... " 50" 45" 40" 35" 30" Figure 4: Krill diskibution (g/ l 000 m3) in strata 0 to 100 m, 20 January to ... distribution (g / l 000 m3) in strata 0 to 100 m, 27 January to 16 March 1984. 60" 55" 50" 45" 40" 35" 30 ... currents (relative to the 1 000 dbar), 20 January to 9 March 1988. 60" 55" 50" 45" 40" 35" 30" Figure 7 ... in the South Georgia marine ecosystem. CCAMLR Science, 3: 13-30. Ichii, T. and M. Naganobu. 1996 ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Auteur(s): Sushin, V.A. and K.E. Shulgovsky

2. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

   Paper Title:  Estimation of krill (Euphausia superba) mortality and production rate in the ... data of an identical survey with RV Polarstern in 1987/88. Seasonal variation between summer and winter ... ratio of 0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within ... within a one year cycle are also given for each age group in Table 4. Since age class 1+ was almost ... groups older than 1+. Krill production was calculated as 0.967 x 106 tonnes/year in the survey area ... dramatic decline in the krill stock of this region from year to year (Bonner et al.,1978; Morris and 164 ... three year life span of krill. Their age group 1 (20 to 43 mm) included the two age groups 1+ and 2 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Auteur(s): Siegel, V.

3. A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula

   fishery in the South Shetland Islands and Antarctic Peninsula Abstract / Description:  CCAMLR has been ... using the total catch of krill taken within 100 km of penguin colonies in their breeding season ... distribution of the krill fishery in Subarea 48.1 (South Shetland Islands). As this index has proven unsuitable ... analysis, mean foraging distance for chinstrap penguins was increased by 50% (from 20 to 30 km), although ... Macaroni 190 285 123 19 26 3 Foraging Angle -30% (percentage change in parenthesis ... , except for 1989. In that year there was a very large catch which was reflected in a high critical ... of fishing in Subarea 48.1 over the period 1988 to 1991 was highly consistent between years, and ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Auteur(s): Agnew, D.J. and G. Phegan

4. Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea

   in the southern Ross Sea Abstract / Description:  To infer important prey resources for Antarctic ... toothfish (Dissostichus mawsoni) in the southern Ross Sea, their lipid composition was determined and ... compared to lipid profiles of fish and invertebrate species taken as by-catch in the fishery or collected ... toothfish in February 2012. Results of fatty acid (FA) and stable isotope analyses from this study provide ... ) and 120–135 cm (D). Values are mean ± SD. 70 60 50 40 30 20 10 0 % c om po si tio n ... OCT Octopodidae Octopus 10 0 20 0 30 SZT Pogonophryne scotti Plunderfish 25 0 0 3 28 PRA Pasiphaea ... . 0 ± 0. 7 C 18 :1 n9 c 20 .2 19 .5 ± 6 .4 21 .7 ± 0 .3 14 .1 30 .1 ± 2 .8 ... Science, Vol. 20 (2013): 21–36 21 FATTY ACID AND STABLE ISOTOPE ANALYSES TO INFER DIET OF ANTARCTIC ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Auteur(s): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang

5. Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island

   at a deeper range from 50 to 100 m in the day while at a shallower range from 20 to 50 m at night. In ... Paper Title:  Differences in distribution and population structure of krill (Euphausia superba ... in inshore regions where krill frequently occurred but higher density areas of krill (~250 g/m 2 ... ) were rather limited. In contrast, fur seal foraging areas were found in offshore regions where krill ... , tending to be at a deeper range from 50 to 100 m in the day while at a shallower range from 20 to 50 m at ... the slope front. Subsurface current patterns (30 to 35 m depth) in the foraging areas were assessed ... (50 to 100 m) in the daytime, while at a shallower layer (20 to 50 m) at night (Figure 4). In the ... behaviour in relation to vertical distribution of kriH. 1. Animal Ecol., 54: 1-8. ICHII, T., H. ISHII and ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Auteur(s): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu

6. Use of indices of predator status and performance in CCAMLR fishery management

   Paper Title:  Use of indices of predator status and performance in CCAMLR fishery management ... used in the management, by CCAMLR, of commercial fisheries. It reviews reasons why it is important for ... CCAMLR formally to use such data in its fishery management operations and discusses the constraints ... inherent in the CEMP data, both from predator monitoring and harvesting perspectives. An outline of a ... most existing fishery management agreements. A particular issue, not explicitly addressed in Article ... environment, evidence for short-term changes (year-to-year differences or trends over three to five years ... last year and with average(s) of previous years. Determine level of statistical significance of ... PERFORMANCE IN CCAMLR FISHERY MANAGEMENT J.P. Croxall Abstract This paper investigates how data on, or ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 353–365 : Auteur(s): Croxall, J.P.

7. A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia

   successful recruitment year due to krill spawned in 1994/95. File:  06watkins.pdf ... Paper Title:  A composite recruitment index to describe interannual changes in the population ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... %), while between 1994 and 1998 the number of 1+ krill found in the population increased with a very ... years, either because of changes in distribution or sampling techniques. Similarly, the larger year ... + year class only formed a significant proportion of the population in three of the seven years. This ... successful recruitment year due to krill spawned in 1994/95. Resume Description d'un indice composite de ... -year changes in population structure and recruitment indices derived from scientific cruises within ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Auteur(s): Watkins, J.L

8. An assessment of the impact of krill fishery on penguins in the South Shetlands

   Paper Title:  An assessment of the impact of krill fishery on penguins in the South Shetlands ... ) fishery and penguins during the penguins' breeding season (December to March) in the South Shetland ... krill catch is very low in December while the catch rate for the following three months is roughly ... constant (3 000 to 10 000 tonnes/10-day period) due to an increase in fishing intensity in areas closer to ... 20 or 30 X 30 n miles from recent surveys (1989/90 and 1990/91). The krill biomass for each of ... about 3 to 25 km offshore, irrespective of annual conditions, i.e., even in a krill-poor year (AMLR ... IMPACT OF THE KRILL FISHERY ON PENGUINS IN THE SOUTH SHETLANDS T. Ichii, M. Naganobu and T. Ogishima ... penguins' breeding season (December to March) in the South Shetland Islands (Subarea 48.1) was made based ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 107–128 : Auteur(s): Ichii, T., M. Naganobu and T. Ogishima

9. Mitigation of seabird captures during hauling in CCAMLR longline fisheries

   / Description:  In recent years there has been an increased focus on reducing seabird captures that occur during ... Paper Title:  Mitigation of seabird captures during hauling in CCAMLR longline fisheries Abstract ... hauling in CCAMLR longline fisheries. Haul captures were first recognised by CCAMLR as a problem as early ... operations in Divisions 58.5.2 and 58.4.2. During that year, although there was zero mortality recorded dur ... MRAG Ltd 18 Queen Street, London W1J 5PN United Kingdom Abstract In recent years there has been an ... BEDs have been used in fisheries in Division 58.5.2 over the period of three years. Discussion ... MITIGATION OF SEABIRD CAPTURES DURING HAULING IN CCAMLR LONGLINE FISHERIES E. Reid BirdLife International ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Auteur(s): Reid, E., B. Sullivan and J. Clark

10. The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model

    Paper Title:  The sensitivity of multiple output statistics to input parameters in a krill ... strategic frameworks for assessing uncertainty in ecosystem dynamics models. Such models have been used ... within CCAMLR to evaluate options for managing the Antarctic krill fishery in the Scotia Sea and southern ... plausible alternative hypotheses in data-poor situations. Apparent sensitivity is a function of both input ... nominally beginning in 2007 and par- titioned into 20 years of fishing, using a can- didate catch allocation ... shorter than a year) 2 There are, in fact, 29 arguments for the main function. Eleven of these are ... season (1 = summer), and the notation 1970 indicates the sum of values across the two seasons in a year ... , but more specific than, that of Watters et al. (2013), who assumed that overall krill density in ...

    Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews

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