Résultats de la recherche
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Areas of seabed within selected depth ranges in the South-West Atlantic and Antarctic Peninsula regions of the Southern Ocean
Paper Title: Areas of seabed within selected depth ranges in the South-West Atlantic and ... (km2 ) Subdivision N S E W 0-50 50-150 150-250 250-500 )500 Sea Total 62°00' 62°20' 59°30' 60°00 ... ' 2.2 8.7 44.6 44.6 956 957 2 62°00' 62°20' 58°30' 59°30' 91.6 2.9 3.7 1.8 1359 1934 3 62°00' 62°20 ... ' 57°30' 58°30' 27.6 6.4 12 54 1500 1934 4 62°20' 62°40' 57°30' 58°30' 0 0 0 100 1898 1898 5 62°20 ... ' 62°40' 58°30' 59°30' 9.5 2.7 3.2 84.5 1809 1898 6 62°20' 62°40' 59°30' 60°00' 63.3 8.7 9.7 18.4 772 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 49-73 : Auteur(s): Everson, I.
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A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey
the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey Abstract / Description ... units (SSMUs), were estimated. Abundance in some of the individual SSMUs had not previously been ... estimated due to the sparseness of data in these regions. The MaxEnt formalism allows an objective choice of ... the error in the density estimates. The total biomass inferred for the survey area was 208 million ... 332 pixels, of which data are available for 9 586 pixels or just 0.56%), results were obtained in 30 ... QuAntified BAyesiAn MAxiMuM entropy estiMAte of AntArctic Krill ABundAnce Across the scotiA seA And in ... area, and within individual small-scale management units (SSMUs), were estimated. Abundance in some of ... the individual SSMUs had not previously been estimated due to the sparseness of data in these regions ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Auteur(s): Heywood, B.G., A.S. Brierley and S.F. Gull
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Attribtuion of acoustic echoes to squid in the south Atlantic
Paper Title: Attribtuion of acoustic echoes to squid in the south Atlantic Abstract / Description ... : During a research cruise of the British Antarctic Survey ship RRS James Clark Ross in February 1996, more ... than 2 000 individuals of the ommastrephid squid, Martialia hyadesi, were caught in a single haul made ... by a pelagic trawl near the Antarctic Polar Frontal Zone in CCAMLR Subarea 48.3. This paper describes ... grey-headed albatrosses in the previous year had suggested that this area was being actively targeted ... net opening to 25-30 m in height. A depth sensor was attached to the net and this was used to ... was calibrated using three sizes of copper sphere suspended around 20 m below the ship's hull in ... 02:lO 25 12:lO 2 0 01:30 100 02:25 130 01:45 80 00:30 20 01:55 150 01:30 60 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Auteur(s): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley
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Areas of seabed within selected depth ranges in CCAMLR Subarea 48.3, South Georgia
Paper Title: Areas of seabed within selected depth ranges in CCAMLR Subarea 48.3, South Georgia ... RANGES IN CCAMLR SUBAREA 48.3, SOUTH GEORGIA 1. Everson and S. Campbell* Abstract Areas of seabed ... . INTRODUCTION During the 1989 Meeting of the Working Group on Fish Stock Assessment in Hobart, it was agreed ... presented in a similar paper (Everson, 1988). * National Environment Research Council, British Antarctic ... . Harbours and Anchorages in South Georgia 3589 5. Harbours and Anchorages in South Georgia 3585 Further ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 459–466 : Auteur(s): Everson, I. and S. Campbell
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Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
Paper Title: Midwater trawl catchability in relation to krill and possible ways of assessing ... the basis of data obtained from AtlantNIRO expeditions from 1983 to 1990 in the Scotia Sea. A ... midwater trawls in the krill fishery indicates that the potential exists for this efficiency to be ... Rhomboid a=lOO (30) mm a=80(20)mm a=60 (18) mm 0.2 0.2 0.2 Hexagonal a=lOO (20) mm a=80 (14) mm a=60 ... 70 60 50 40 ~ 30 I» o ~ 20 g. f 10 \-l o 0,9 10,7 20,5 30,3 40,1 ~9.9 59,7 3 ... concentration d.ensity in the zone of action of the trawl,g/m 70 60 50 20 10 o 0,6 9,4 18,1 26,8 35,S ... WG-KRILL-90/22 MIDWATER TRAWL CATCHABILITY IN RELATION ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Auteur(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov
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Natural mortality of grey rockcod (Notothenia squamifrons) in various areas of the Indian sector of the Southern Ocean
Paper Title: Natural mortality of grey rockcod (Notothenia squamifrons) in various areas of the ... were established to be 5.9, 5.2 and 7.6 years. The value for M in the Kerguelen Islands area is ... (NOTOTHENIA SQUAMIFRONS) IN VARIOUS AREAS OF THE INDIAN SECTOR OF THE SOUTHERN OCEAN A.K. Zaitsev ... ). In order to compare our data with the results obtained by Duhamel (Kock, Duhamel, Hureau, 1985), age ... its maximum (T). This parameter is calculated according to the age of the oldest group in the catches ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 141–146 : Auteur(s): Zaitsev, A.K.
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Patagonian toothfish in international waters of the Southwest Indian Ocean (Statistical Area 51)
Paper Title: Patagonian toothfish in international waters of the Southwest Indian Ocean ... , following commercial fishing procedures, in a restricted area south of Madagascar and north of Prince Edward ... made at depths between 360 and 1 950 m. D. eleginoides was present in all hauls, with catches varying ... located at the edge of the principal area of D. eleginoides concentration, in which a residual recruitment ... (2005): 207–214 207 PATAGONIAN TOOTHFISH IN INTERNATIONAL WATERS OF THE SOUTHWEST INDIAN OCEAN ... , in a restricted area south of Madagascar and north of Prince Edward and Marion Islands and the ... 950 m. D. eleginoides was present in all hauls, with catches varying from 53 to 1 158 kg. The ... area of D. eleginoides concentration, in which a residual recruitment effect persists. The total CPUE ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 207–214 : Auteur(s): López Abellán, L.J
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Sources of variance in studies of krill population genetics
Paper Title: Sources of variance in studies of krill population genetics Abstract / Description ... : There has been a long-term interest in the population genetics of Antarctic krill species because of ... resurgence of interest in identifying distinct stocks of swarming krill species has been driven by the ... population structure. More recent investigations using sequence variation in mitochondrial DNA (mtDNA) have ... , Vol. 9 (2002): 107–116 107 SOURCES OF VARIANCE IN STUDIES OF KRILL POPULATION GENETICS S.N. Jarman ... – simon.jarman@aad.gov.au Abstract There has been a long-term interest in the population genetics of Antarctic ... conservation. A recent resurgence of interest in identifying distinct stocks of swarming krill species has ... variation in mitochondrial DNA (mtDNA) have exposed genetic differentiation between samples taken from ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 107–116 : Auteur(s): Jarman, S.N. and S. Nicol
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Effect of line sink rate on albatross mortality in the Patagonian toothfish longline fishery
Paper Title: Effect of line sink rate on albatross mortality in the Patagonian toothfish longline ... vessels using bird-scaring lines and setting lines in propeller turbulence, longline sink rates >0.3 m ... in batches of 20 (= 960 snoods and hooks), with each batch extending 1 440 m along the hook line ... seabed between the first and last hooks in a set of 100-360 baskets would be 8.3-30 km respectively ... the In Sung 66 was 1/95 hooks, or 1 /30 S; weight pull- backs occurred about every 8 s. Hook-ups and ... (15 km + 20 m) or 4.5 tonnes of weight, which would have to be hauled in addition to the weight of ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 133–150 : Auteur(s): Robertson, G.G
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Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3
Paper Title: Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3 ... (1989) from the data obtained during the Chilean longline fishery in Subarea 48.3 (N = 7 848. The von ... : fishing site, fishing depth and hook type. It was determined that there were no significant differences in ... differences in M between fishing sites. On the other hand, when comparing various mean values of M for the ... Chilean longline fishery in Subarea 48.3 (N = 7 848). The von Bertalanffy growth parameters obtained ... type. It was determined that there were no significant differences in M estimated by fishing depth ... and hook type with different growth parameters although there were differences in M between fishing ... , captura total y una submuestra de 30 ejemplares por lance, de los cuales se obtuvo la composicion por ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Auteur(s): Moreno, C.A. and P.S. Rubilar