Résultats de la recherche

1. Rapport de pêcherie : pêcherie exploratoire de Dissostichus spp. – sous-zones 88.1 and 88.2

   /03 2003/04 2004/05 2005/06 2006/07 Weighted Frequency (proportion of the catch) Le ng th ... -100 -50 2001/02 2002/03 2003/04 2004/05 2005/06 2006/07 Weighted Frequency (proportion of the catch ... LAYOUT OF CCAMLR DOCUMENTS AND REPORTS ... de conservation .......................................................... 30 8.2 Avis de gestion ...

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2. Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000

   × 0.5 km cells in each box, taking explicit account of the spatial relationship between densities in the ... observed data. Despite some very large interannual and regional differences in mean krill density, the ... survey boxes (dimensions 80 km × 100 km) north of South Georgia. The reconstructions were generated from ... line-transect acoustic survey data gathered in the boxes during austral summers from 1996 to 2000 ... infer- ence of the mean krill density (g m-2) in each of the 32 000 0.5 × 0.5 km cells within each ... been determined at approximately 0.5 km intervals along each of the ten 80 km transects in each box ... to infer the most probable krill density for each of the 32 000 0.5 × 0.5 km cells in each box ... , taking explicit account of the spatial relationship between densities in the observed data. Despite ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Auteur(s): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins

3. Rapport de pêcherie : Pêcherie exploratoire de Dissostichus spp. des sous-zones 88.1 et 88.2

   (proportion of the catch) Le ng th (c m ) Figure 1 : Fréquences de longueurs pondérées selon ... /02 2002/03 2003/04 2004/05 Weighted Frequency (proportion of the catch) Le ng th ... LAYOUT OF CCAMLR DOCUMENTS AND REPORTS ... .................. 27 Mesures de conservation ............................................................... 27 Avis ...

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4. Beyond MSY: a consideration of definitions of management objectives

   different guidelines under more realistic population models, taking account of the objectives set out in ... / Description:  The concept of ‘Maximum Sustainable Yield’ (MSY) has provided a useful guideline for resource ... management under the assumptions of a simple population model and simple objectives. This paper explores ... Article II of the CCAMLR Convention. The criteria will depend on whether the main concern is with ... associated species. From this it may be possible to determine boundaries to the extent of change in mean ... realistic population models, taking account of the objectives set out in Article 11 of the CCAMLR ... comprehension, and reasonable correspondence to the behaviour of resources under exploitation. In the 1950s ... and 1960s it served a very useful purpose in bringing an understanding of the broad principles of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Auteur(s): Gulland, J.A.

5. Pêcherie exploratoire de Dissostichus spp. des sous-zones 88.1 et 88.2

   Frequency (proportion of the catch) Le ng th (c m ) Figure 5.1 : Fréquences de longueurs ... de conservation 41-09, nombre de navires ayant pêché, et la capture de Dissostichus spp. de la sous-zone 88.1 ... 12 2166 Tableau 5.3 : Nombre de navires autorisés en vertu de la mesure de conservation 41-09 ... dans la mesure de conservation 33-03. 5.86 Le groupe de travail recommande que, dans la mesure du possible ...

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6. Validation of sink rates of longlines measured using two different methods

   sight behind waves or in congregations of seabirds before the target depth was reached. No TDRs were ... of the ground line – IW-50 lines) were measured during commercial fishing operations using two ... behind the vessel, i.e. out of the observer’s sight, when they reached the target depth. Bottles had a ... measure sink rates to depths of more than 2 m down to the seabed. A major advantage of the TDRs is the ... improve the manuscript. References CCAMLR. 2002. Schedule of Conservation Measures in Force, 2002/03 ... seabird mortality in demersal longline fi shing operations, the sink rate of the longlines was identifi ... recording the water-entry time of TDRs. Based on TDR data, the differences in sink rates to various target ... depths and the variation in sink rates of longlines over four depth increments with increasing distance ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Auteur(s): Wienecke, B. and G. Robertson

7. Results of fish larvae sampling by means of fine-meshed samplers attached to a bottom trawl

   bottom trawl Abstract / Description:  Fine-meshed samplers were attached to the top of a bottom trawl in ... order to provide information on the composition, distribution and abundance of Antarctic fish larvae in ... sized meshes for sampling larvae in the bottom zone and the resistance of the samplers to damage during ... , more vulnerable to damage. The nets were more effective in sampling when attached to the top of the ... -meshed samplers were attached to the top of a bottom trawl in order to provide information on the ... composition, distribution and abundance of Antarctic fish larvae in the near-bottom zone, which is usually ... not sampled using plankton nets. The efficiency of various sized meshes for sampling larvae in the ... nets were more effective in sampling when attached to the top of the trawl belly, not to the codend. A ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 69-86 : Auteur(s): Ślósarczyk, W. and I. Wójcik

8. Geographical aspects of utilising resources of krill (Euphausia superba)

   Abstract:  This paper presents data on the distribution of E. superba in the Atlantic sector and ... . In a number of subregions on the periphery of the Weddell Gyre (both to the north and south), as well ... as in the coastal waters of the Antarctic continent, the formation of krill aggregations is variable ... in terms of location of individual aggregations. The main difficulty with starting up a fishery there ...

   Meeting Document : WG-EMM-96/05 : Auteur(s): Makarov, R.R.

9. Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)

   Atlantic, and sperm whales from the Gulf of Mexico. There was high variance in?15N and?13C values for each ... may be due to ontogentic changes in diet, and/or progressive consumption of larger individuals of the ... same species with age. There was significant residual variance in?15N and?13C values for each of the ... not explained by the isotopic composition of prey sampled in that area. This may be due to: (1 ...

   Meeting Document : WG-EMM-07/19 : Auteur(s): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)

10. Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle

    cm in length) were mainly found in the southern part of the study area, immature fish (15–25 cm) in ... the east and southwest, and adults (25–39 cm) in the north. The distribution of C. gunnari changes ... vertical migrations. Variations found in the depth distribution of C. gunnari relate both to fish length ... South Georgia at various stages of its life cycle Abstract / Description:  The distribution of mackerel ... age–length distribution and mean length of 2- to 4-year-old fi sh in the western and Shag Rocks ... (<15 cm in length) were mainly found in the southern part of the study area, immature fi sh (15–25 cm ... ) in the east and southwest, and adults (25–39 cm) in the north. The distribution of C. gunnari ... (>40 cm) did not undertake vertical migrations. Variations found in the depth distribution of C ...

    Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Auteur(s): Frolkina, Zh.A

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