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Growth and age/length structure of populations of Notothenia (Lepidonotothen) squamifrons (Nototheniidae) in various areas of the Indian sector of the Southern Ocean
) squamifrons (Nototheniidae) in various areas of the Indian sector of the Southern Ocean Abstract / Description ... ) squamifrons), inhabiting areas of the Ob and Lena Banks and the Kerguelen Island Shelf, are presented in this ... paper. It was found that during the first years of life the linear growth rate is 3 to 5 cm per year. It ... decreases by a maximum of 1 cm during the last years of life. Maximum annual weight increments of 100 to 120 ... from the tip of the snout to the end of the urostyle). Fish weight was determined to the nearest gram ... mature fish aged 8 to 10 and towards the end of life by a maximum of 1 cm. Maximum increase in weight ... 5-to 8 (f = 7 years). At the beginning of exploitation in the Kerguelen Islands area the bulk of ... , (Le. to the point at which the sclerites begin to merge). The results of the count were processed on ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 123–139 : Автор(ы): Zaitsev, A.K.
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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Paper Title: Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by ... acoustic surveys Abstract / Description: Acoustic surveys carried out in the summer and autumn of 1987 ... -1989 estimated the biomass of myctophids in the Atlantic sector of the Southern Ocean between 48° and ... 56° and from 8° to 48°W to be approximately 1.7x10 6 tonnes. Over the greater part of the surveyed ... beginning and at the end of each survey and 6.9 m2/square miles in the second. For estimation of the ... WG-FSA-90/19 BIOMASS OF MYCTOPHIDS IN THE ATLANTIC ... SECTOR OF THE SOUTHERN OCEAN AS ESTIMATED BY ACOUSTIC SURVEYS A.A. Filin, K.V. Gorchinsky and V.M ... . Kiseleva* Abstract Acoustic surveys carried out in the summer and autumn of 19g7 -19g9 estimated the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Автор(ы): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva
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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 ... distribution around South Georgia Abstract / Description: Analyses of the distribution of krill fishing based ... 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 ... chinstrap penguins at the end of the winter and hence their breeding success in the following season ... Georgia in January 1996: the beginning of a five-year monitoring program. Document WG-EMM-96/18. CCAMLR ... THE SCOTIA SEA IN RELATION TO BATHYMETRY, INCLUDING THE DETAILED DISTRIBUTION AROUND SOUTH GEORGIA ... Cambridge CB3 OET, United Kingdom Abstract Analyses of the distribution of krill fishing based on fine ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Автор(ы): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
Paper Title: Effects of weather and sea-ice on the reproductive performance of the Adélie penguin ... at Edmonson Point, Ross Sea Abstract / Description: The breeding biology of the Adélie penguin ... (Pygoscelis adeliae) was studied at Edmonson Point, Victoria Land, during the 1999, 2001 and 2003 breeding ... females were significantly longer than in 1999 and 2001, which in turn delayed the mean departure date of ... December 2002 and coincided with the beginning of hatching. During this period the mean windchill ... which occurred immediately after a major snow and wind storm (Figure 1). In all three seasons the ... EFFECTS OF WEATHER AND SEA-ICE ON THE REPRODUCTIVE PERFORMANCE OF THE ADÉLIE PENGUIN AT EDMONSON POINT ... @unisi.it Abstract The breeding biology of the Adélie penguin (Pygoscelis adeliae) was studied at Edmonson ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Автор(ы): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
Paper Title: Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald ... Islands using catch-at-age and aged mark-recapture data from the main trawl ground Abstract / Description ... in integrated assessments via CASAL for the Heard and McDonald Islands (HIMI, Division 58.5.2 ... adopted whereby the relatively long time series of catch-at-age and mark-recapture data from the main ... -recapture program beginning in April 1998 also in this ground (Candy et al., 2007). The total number of ... The annual natural mortality rate, M, is a very influential parameter in determining the productiv ... size and the age-at-maturity ogive. The integrated assessments using CASAL (Bull et al., 2005) of ... (D. mawsoni) in the Ross Sea (Subarea 88.1) (Dunn and Hanchet, 2007) apply a fixed value of M of ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Автор(ы): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins
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Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery
Paper Title: Significant conservation benefits obtained from the use of a new fishing gear in the ... Chilean Patagonian toothfish fishery Abstract / Description: A new fishing technique, adapted from the ... artisanal trotline fishery for Patagonian toothfish (Dissostichus eleginoides) in Chile is described. The ... macrocephalus). The performance of this fishing technique with regard to seabird mortality and depredation by ... of the baited hooks at the end of the hook lines with the position of a weight. Buoy ~1 000 m ... . During the set, this sleeve remains at the upper end of the branch line, but when the thick main line ... - trated at the end of the branch line, close to the weight. Individual weights were much heavier than on ... was made by sci- entific observers when the fleet started using the Chilean longline. After about one ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 79–91 : Автор(ы): Moreno, C.A., R. Castro, L.J. Mújica and P. Reyes
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Experimental evaluation of the effectiveness of weighting regimes in reducing seabird by-catch in the longline toothfish fishery around South Georgia
Paper Title: Experimental evaluation of the effectiveness of weighting regimes in reducing ... seabird by-catch in the longline toothfish fishery around South Georgia Abstract / Description: A series ... of experiments was carried out in February 1999 at South Georgia (Subarea 48.3) to examine the ... effects of different weighting regimes on the incidental mortality of birds caught on longlines fishing ... feeding attempts. At the end of setting, a second count of the birds astern of the vessel was made. Any ... by the vessel's movement resulted in the streamer line snapping after a few seconds. The remains of ... corresponded with the wind direction, although the swell tends to lag behind after sudden wind changes. When ... end of setting. Agnew et al. Table 4: Bird by-catch rates and numbers of feeding attempts in the ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 119–131 : Автор(ы): Agnew, D.J., A.D. Black, J.P. Croxall and G.B. Parkes
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A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem
Paper Title: A first step towards modelling the krill–predator dynamics of the Antarctic ... ecosystem Abstract / Description: The history of human harvests of seals, whales, fish and krill in the ... Antarctic is summarised briefly, and the central role played by krill emphasised. The background to the ... hypothesis of a krill surplus in the mid-20th century is described, and the information on population and ... . After this exploitation of the Antarctic fur seals, and commencing at the beginning of the 20th cen ... taken from the end of the 18th century, followed by whales at the start of the 20th century. More ... microcephalus) were taken in substantial numbers from the 1950s, and after the depletion of the other major ... rossii) almost vanished from the vicinity of South Georgia after 514 000 tonnes were taken otros ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Автор(ы): Mori, M. and D.S. Butterworth
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Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
Paper Title: Analysis of results from demersal fish surveys at South Georgia, undertaken by the ... United Kingdom and the USSR, January and February 1990 Abstract / Description: The report describes ... discussions and analyses of the data from a survey from MV Hill Cove in January 1990 and RV Akademik Knipovich ... hauls interspersed with a few large catches. The small number of large catches cause a disproportionate ... Knipovich had only returned to Sevastopol at the end of May 1990 and this had left little time in which to ... were on the northern side of the west end of the island, near the shelf break west-southwest of the ... of the seabed after dark. Mr Parkes and Or Shust also reported seeing the same phenomenon on Furuno ... Xst = L Sh Xh/ L Sh h=1 h=1 Nh Xh = l/Nh L x~/Shi i=l The results after stratification into ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Автор(ы): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
Paper Title: Precautionary spatial protection to facilitate the scientific study of habitats and ... communities under ice shelves in the context of recent, rapid, regional climate change Abstract / Description ... : Recent rapid climate change is now well documented in the Antarctic, particularly in the Antarctic ... Peninsula region. One of the most evident signs of climate change has been ice-shelf collapse; overall, 87 ... inland (iv) by the end of the current century, the full effects of greenhouse gas increases are expect ... could be removed (and the area deleted from the list of protected areas) after the interim period has ... Peninsula region (Subarea 48.1) dur- ing several seasons after 1978/79. All of the finfish fisheries in ... of the western Antarctic Peninsula. CCAMLR closed the fisheries after the 1989/90 season in order ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Автор(ы): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock
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