Résultats de la recherche
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Erratum and Addendum - Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR Science, 11: 59–80 (2004)
models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR ... ˆ ˆ iiu r u σ = å (Schall, 1991). The results in Candy (2004) were not affected by this ... (EQD) described by equations (7) and (9) in Candy (2004) should be replaced by the corresponding ... = rather than excluding the whole second term in each of equations (7) and (9). Re-definitions of ... Candy, 2004) using equa- tion (9a) corresponding to Figure 2 in Candy (2004) and suggests the estimate ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 221–222 : Auteur(s): Candy, S.G
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A declining trend in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons observed in fjords in two sites in the South Shetland Islands
, King George/25 de Mayo I., over a period of eight years from 1983 to 1990 and in waters around Half ... Paper Title: A declining trend in the abundance of Notothenia rossii marmorata and Notothenia ... gibberifrons observed in fjords in two sites in the South Shetland Islands Abstract / Description: A declining ... trend observed in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons in fjords in ... Bellisio (1967) in 1965/66 is three times greater than in 1989 (0.038). In this year, there was not a ... 20 268 Table lA) (continued) Number of Specimens Caught in Each Replicate Level 1 Level 2 ... Caught in Each Replicate Year Month Number of N. neglecta N. rossii N. gibberifrons Replicates 1989 ... ., over a period of eight years from 1983 to 1990 and in waters around Half-Moon 1., Moon Bay, in 1989 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 263–274 : Auteur(s): Barrera-Oro, E. and E. Marschoff
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Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77-1986/87
Paper Title: Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77 ... -1986/87 Abstract / Description: The swept area method was used to estimate biomass density changes in ... georgianus, Notothenia gibberifrons and Notothenia rossii marmorata) in the South Georgia area in the seasons ... 1976/77-1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1 ... years, this year class might keep catches in the 1986/87 and the following season at a high level. To ... by high biomass densities was quite different. In both of them, 3-year old fish predominated ... vessel), and a length of 21-30 cm in 1986/87 (November-December, data from research catches). The ... biomass density of c. aceratus increased distinctly, no fish below 30 cm in length were found in the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 185-211 : Auteur(s): Mucha, M. and W. Ślósarczyk
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By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992
Paper Title: By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia ... superba Dana) fisheries in the South Georgia area, in 1992 Abstract / Description: This paper discusses ... an investigation of juvenile Antarctic fish caught during krill fishing by the FV Grigory Kovtun in ... the area around South Georgia from May to July 1992. Two species were predominant in the by-catches ... they had been spawned the previous year (in May and June, according to Burchett et al., 1983). In the ... from May to July 1992 in the South Georgia area. P I a a: 80- 40- 4 g 4 G - + - 60- 20- I ... FEEDING OF ANTARCTIC JUVENILE FISH TAKEN IN KRILL (EUPHAUSIA SUPERBA DANA) FISHERIES IN THE SOUTH GEORGIA ... AREA, IN 1992 E.A. Pakh~mov',~ and S.A. Pankratovl 'Southern Scientific Research Institute of ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 129–142 : Auteur(s): Pakhomov, E.A. and S.A. Pankratov
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Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area
Paper Title: Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons ... and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area ... continued at Potter Cove from 1991 to 1999, and at Harmony Cove, Nelson Island, in the austral summer of ... 1995/96. Still evident is the decline in trammel-net catches of fjord-dwelling Notothenia rossii and ... performed on total and relative catches taken at PC are shown in Table 1. Split-year (1 May to 30 April ... defined as the period from 1 May to 30 April next year. Variance was normalised using the trans ... years (1983-1990) a decrease in the stocks of juvenile N. rossii and G. gibbevifrons was demonstrated ... - thus completing a continuous sampling period of 16 years - and in the austral summer of 1995/96 at ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 43–52 : Auteur(s): Barrera-Oro, E.R., E.R. Marschoff and R.J. Casaux
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Observation of seabirds in the Southern Ocean in 1988/89
Paper Title: Observation of seabirds in the Southern Ocean in 1988/89 Abstract / Description ... : This paper examines the numerical and species distribution of birds in the sub-Antarctic area of the ... :00; 12:00, 16:00 and 20:00 ship-time, while sailing between Antarctic stations and while en route to ... study period are discussed as is the wide variability of numerical and species distribution in each ... shown in Figure 1. Observations lasting 30 minutes each were carried out during the daylight hours at ... witnessed in the area of Bunger Hills Station near the ice-edge. During repeat observations (9 to 20 ... 73°30'S in the Pacific sector. Most often single birds were observed and it was rare for two to be ... . Large flocks of up to 20 birds were common in summer to the east of 74°W. The number observed at one ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Auteur(s): Vagin, A.V. and V.V. Popov
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Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season
Paper Title: Distribution characteristics of krill aggregations in the fishing ground off ... Coronation Island in the 1989/90 season Abstract / Description: Distributional characteristics of krill ... aggregations in the Coronation Island fishing ground were examined in relation to environmental factors, the ... common types of krill aggregations were recorded in the Coronation Island area over the observation ... -east (500 1O'S to 59° 30'S and 43°30'W to 44°W) and south-west (Figure 1). In the daytime, krill was ... the continued increase in the proportion of males and females feeding intensely who went into the ... /green liver 15 - dark-green/green liver 65 20 40 60 1:30 10 19.12.89 - 7.0I.90r. time ... \~. P . • . • . • 20 30 • • t • , "' ... I' 50 t I· ... ··"· ", • . 0 . 01 . . I ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Auteur(s): Kasatkina, S.M. and V.I. Latogursky
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Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia
Paper Title: Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed ... on fine-scale (0.5 o latitude x 1 o longitude) data show that harvesting in the Scotia Sea has been ... mainly in shelf and shelf-break areas on the northern side of the Scotia Arc. Regional analyses reveal ... trawl statistics have been recorded in the South Georgia area. Analyses of these data show marked ... than a few weeks in a year and at other than a local scale. Krill population dynamics operate over ... year and it is those data that have been used in this study. The following new dataset was also ... restricted area of about 30 x 20 km. There were also a few isolated hauls made outside this area. During ... with the main summer foraging area was greatest in the poor krill year of 1993/94 (Brierley and ...
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
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Age determination of Champsocephalus gunnari Lönnberg, 1905 (Channichthyidae) taken in the South Georgia area in 1990
-26 and 30-34 cm. Only vertebra samples (n =140) were used in age determination. Age groups from 1+ to ... in the South Georgia area in 1990 Abstract / Description: In January/February 1990 the UK and the ... the status of the Champsocephalus gunnari stock in the South Georgia area. In February 1990 the size ... 9+ were present in catches. Two peaks in size composition correspond with fish of the 1987 and 1985 ... 16-18,24-26 and 30-34 cm with the maximums being in the second and third size groups (Akademik ... , the inner structure of otoliths is wholly sequential only in the first three to four years of life ... authors. Age in Olsen Kock Sosinski Gubsch Kochkin Radtke years 1955 1981 1981 1982 1985 1990* 1 ... , February 1990. Age in Years Variations in Overall Length (cm) Number of Specimens 1+ 2+ 3+ 4+ 5 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 285–293 : Auteur(s): Kochkin, P.N.
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Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season)
Paper Title: Factors affecting the incidental mortality of seabirds in the Dissostichus ... eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season) Abstract / Description: This paper ... Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 during the 1995 season. The data was obtained ... in vessels' analyses of catch of birds per unit effort (BPUE), as well as of the haul-by-haul ... ., 1995), as well as by other observers who took part in the stock depletion experiment designed by the ... increase their activity in relation to the lunar cycle at this time of the year. Some of the highest ... different sizes) and incidental mortality clearly demonstrates that hooks equal to or larger than 30 mm in ... THE INCIDENTAL MORTALITY OF SEABIRDS IN THE DISSOSTICHUS ELEGlNOlDES FISHERY IN THE SOUTHWEST ...
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