Résultats de la recherche

1. Spawning locations of mackerel icefish at South Georgia

   weak. Concentrations of larval icefish within Cumberland Bay are an order of magnitude higher than in ... following day, two on 20 March and 14 on 30 March. 011 5 April the catch was just three, and no further ... coast of South Georgia. Sampling was undertaken using an RMT8 at stations up to 20 k m from the mouth ... , spawning, South Georgia, CCAMLR INTRODUCTION Over the past 30 years there has been a fishery, large in ... evidence is weak. Concentrations of larval icefish within Cumberland Bay are an order of magnitude higher ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Auteur(s): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock

2. Characteristics of krill swarms from Prydz Bay

   inter-swarm length were calculated for swarms of euphausiids encountered along a 78 km transect over the ... Euphausia crystallorophias. An increase in swarm length was seen with increasing distance from the coast ... 1800 ~ I- l- I- I- 50 40 30 20 10 1002 c 80 !2: ~ 60 40 20 Figure 2: Log ... ,:" •• .. .,:-. .- -10 L-~I __ -L __ -L __ ~I __ -L __ ~ __ ~~ o 10 20 30 40 50 60 70 80 distance along transect (km ... ) 60 50 40 30 20 10 1n (between swarm distance) Figure 3(b): Log transformed between ... 20 40 60 80 swarm thickness (m) Figure 3(c): Swarm thickness. n 0 q z f-3 n o q Z f-3 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Auteur(s): Agnew, D.J. and I.R. Higginbottom

3. Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season)

   analyses all incidental mortality of seabirds recorded on Argentinian and Chilean vessels fishing for ... of concern for the linked to an increase in fishing effort in the Commission for the Conservation ... differed. For example, to calculate the effect of the streamer lines, hauls were chosen from an area in ... Chilean vessels fishing for Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 during the ... ) since the to the longline fisheries for Patagonian toothfish beginning of large-scale longline fishing ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 79–91 : Auteur(s): Moreno, C.A., P.S. Rubilar, E. Marschoff and L. Benzaquen

4. Differentiation of independent populations of Antarctic krill

   :  Several countries have recently shown an interest in commercial krill fishing. An understanding of krill ... population structure is needed to establish sound management of krill fisheries. A short review is undertaken ... circulation. On the basis of the review, it is suggested that there is probably one composite population of E ... may be habitats of independent krill sub-populations. A proposal is given for future studies into ... -to-year and seasonal fluctuations ; 6. study of the causes of fluctuation 7. setting up of an ... INDEPENDENT POPDLATIONS OF ANTARCTIC KRILL D.S.S.R. Abstract Several countries have recently shown an ... interest in commercial krill fishing. An understanding of krill population structure is needed to ... establish sound management 'of krill fisheries. A short review is undertaken of recent studies in genetic ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Auteur(s): USSR

5. Results of a longline survey on seamounts in the southeast Atlantic and in Subarea 48.6 and Division 58.4.4

   vary from 1:1. Females accounted for 70% of individuals of more than 90 cm in total length. The stratum ... shallow water. The sex ratio of immature D. eleginoides less than 90 cm total length did not significantly ... . Females accounted for 70% of individuals of more than 90 cm in total length. The stratum with the highest ... P.A. Hulley and an anonymous reviewer for their useful comments on the manuscript and for pointing ... Banks: n = 136, mean length = 111.8 20 a, 0) m 15 0 a 10 5 0 40 45 50 55 60 65 70 75 80 ... ratio of immature D. eleginoides less than 90 cm total length did not significantly vary from 1:l ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 99–116 : Auteur(s): López Abellán, L.J. and J.F. González Jiménez

6. Integration of CPUE data into assessments using the Generalised Yield Model

   / Description:  For the last three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has ... the use of importance sampling, for incorporating information on trends in standardised CPUEs into GYM ... assessments. The use of the method is illustrated using data for Patagonian toothfish (Dissostichus ... year Y is the latest year for which we have data from the fishery, and simulation years Y+l to Y+P ... , the GYM is a general age-str~~ctured fish stock projection model for assessing the long-term annual ... in the projections by drawing the estimates for an individual trial from the distributions provided ... abunda~lce of the stock in a given year for each trial is provided in output tables. In tlie absence of ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Auteur(s): Kirkwood, G.P. and A.J. Constable

7. Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001

   . Analyses of the data at the beginning of each summer season could enable us to evaluate the potential for ... conducting a krill fishery in the area during the entire year. The reliability of these forecasts could be ... considerable decrease in mean SST off South Georgia. This observation is especially obvious for the northern ... up to +0.71°C in 1990/91, whereas it was-1.2°C in 2000/01 (for the 1999/2000 season the SST anomaly ... the entire year. The reliability of forecasts for krill catches based on hydrological information ... Georgia waters (Subarea 48.3) for December–February of 1989–1991 and 1999–2001. Year Month Cell 1 Cell ... could be verifi ed only by comparing forecasts with actual krill catches for a number of years. The ... 11 vanyushin PROOF for pdf.indd CCAMLR Science, Vol ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Auteur(s): Vanyushin, G.P

8. Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia

   interannual variability in the distribution of trawls. The data for 1993 were only available from August but ... the fishery was restricted in that period to an area on the western edge of the shelf break where ... fishing for harvesting to be managed using an ecosystem approach. To this end it would be valuable to ... restricted area of about 30 x 20 km. There were also a few isolated hauls made outside this area. During ... factors determine variability within and between years. This will be particularly important for ... interannual variability in the distribution of trawls. The data for 1993 were only available from August but ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Auteur(s): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt

9. Response to Everson (2008)

   ., 2001 for the CCAMLR- 2000 strata). Stratum biomass is determined from the mean transect density raised ... . Thus, there is no reason for the MaxEnt approach to ‘provide an estimate of stand- ing stock close to ... al., 2004), krill target strengths (TS) determined from an SDWBA model (Demer and Conti, 2005), and ... . Brierley et al., 2003), and determined the most-likely krill biomass estimate for the same area to be ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 195–198 : Auteur(s): Brierley, A.S., B.G. Heywood and S.F. Gull

10. Krill (Euphausia superba Dana) resources and distribution in the Wilkes Land area in the seasons 1986 to 1989

    mainly focused on the search for exploitable krill aggregations. Two research vessels were simultaneously ... account an area to the north of the edge of the continental slope. Each subarea was described in terms of ... was considered as the most valuable for the krill fishery. Krill aggregations were most frequently and ... for Fisheries 3 The annual period used is the split-year 1 July to 30 June. Split-year is denoted by ... 1986 50 12.2 1000 50.0 20 to 21 April 3 1986 300 3.5 158 47.5 24 to 30 April 4 1987 127 14.0 1510 ... : Assessments ofkrill resources for subarea ill (64°40' to 66°20'S, 143° to 1500 E). Sequential Period of Area ... it is in subarea ll. Data for many years show that optimum conditions for the formation of krill ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 149–162 : Auteur(s): Dolzhenkov, V.N. and V.P.Timonin

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