Resultados de la búsqueda
-
Differentiation of independent populations of Antarctic krill
Paper Title: Differentiation of independent populations of Antarctic krill Abstract / Description ... : 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 and morphophysiological variability of krill and Antarctic water ... ) population of E. superba" (Makarov, 1972). In a later paper (Makarov, Maslennikov, 1975) after the ... waters. Biologiya Morya, N 3, P. 37-43. Marr J.W.S. 1962. The natural history and geography of the ... - 275 - SC~CAMLR-V/BG/25 DIFFERENTIATION OF ... INDEPENDENT POPDLATIONS OF ANTARCTIC KRILL D.S.S.R. Abstract Several countries have recently shown an ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR
-
Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters
Paper Title: Problems of population age structure determination of Euphausia superba Dana using ... examines the size structure of populations of E. superba in relation to their habitat, on the basis of an ... analysis of data collected by the author during the 1981 season in the region of the Antarctic Peninsula ... from earlier literary sources. The paper addresses the question of whether size groups of E. superba ... ;HOH qaCTli MOPH K BOCTOKY li oopasyeT T.H. Ys,n;,n;enn- OBCKliH ,D;peH~ (Marr, 1962, Mackintosh, 1972 ... , MOJIO~b H BSpOCJI@eOCOOH (Fraser,1936, Bargman, 1945, Marr, 1962,Mackintosh, 1972, MaKapOB, 1980, 1983 ... - 227 - SC-CAMLR-V/BG/39 PROBLEMS OF POPULATION AGE ... STRUCTURE DETERMINATION OF EUPHAUSIA SUPERBA DANA USING AN EXAMPLE FROM THE ANTARCTIC PENINSULA AREA AND ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Autor(es): Spiridonov, V.A.
-
Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) from a trawl survey of the South Georgia shelf in June–July 1985
Paper Title: Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari ... ) from a trawl survey of the South Georgia shelf in June–July 1985 Abstract / Description: A trawl ... survey of the distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) in South ... juvenile trawl of 13.6 m. The size range of juvenile icefish collected was 82–146 mm. Catches were the ... station in a depth of 245-270 m, where the juvenile distribution was determined in the upper, middle ... ABUNDANCE OF JUVENILE ICEFISH (CHAMPSOCEPHALUS GUNNARI) FROM A TRAWL SURVEY OF THE SOUTH GEORGIA SHELF IN ... JUNE-JULY 1985 V.A. Boronin, G.P. Zakharov, V.P. Shopov (U.S.S.R.) Abstract A trawl survey of ... the distribution and relative abundance of juvenile icefish (Chamsocephalus gunnari) in South ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 55-63 : Autor(es): Boronin, V.A., G.P. Zakharov and V.P. Shopov
-
Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
the loss of existing marine habitats and to the creation of new habitats, with consequent changes in ... 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 ... Peninsula region. One of the most evident signs of climate change has been ice-shelf collapse; overall, 87 ... will lead to the loss of existing marine habitats and to the creation of new habitats, with consequent ... retreat of ice shelves on both sides of the peninsula. Loss of ice on the eastern side results from warm ... to loss of ice are confined to the northern part. Increased warming will lead to a southerly ... to biological colonisation. Peck et al. (2010) showed that the loss of ice shelves and retreat of ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Autor(es): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock
-
Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies
whales were found to be responsible for the largest part of this loss (>75%), while sperm whales had a ... Paper Title: Interactions of Patagonian toothfish fisheries with killer and sperm whales in the ... Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible ... Patagonian toothfish (Dissostichus eleginoides) longline fishery is exposed to high levels of depredation by ... whales were found to be responsible for the largest part of this loss (>75%), while sperm whales had a ... were depre- dated during this period (i.e. a financial loss of €3.3 million) by killer and sperm ... absence (CPUEabs) and in the presence of cetaceans (CPUEpres) was estimated. This provided a mean loss ... cetaceans, and IJ is the number of com- binations of lines used to calculate the mean loss of CPUE in each ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Autor(es): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
-
Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
the east and southwest, and adults (25–39 cm) in the north. The distribution of C. gunnari changes ... Paper Title: Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around ... South Georgia at various stages of its life cycle Abstract / Description: The distribution of mackerel ... icefish (Champsocephalus gunnari) around South Georgia (FAO Statistical Subarea 48.3) at various stages of ... ) in the east and southwest, and adults (25–39 cm) in the north. The distribution of C. gunnari ... into fi ve study areas: to the east, west, north and south of South Georgia, and around Shag Rocks ... predominant in catches taken to the east of South Georgia (15–76% of the total catch) (Table 2). In the ... observed near the bottom. Peak catches were obtained in the middle of the day. At dusk fi sh ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Autor(es): Frolkina, Zh.A
-
A balanced model of the food web of the Ross Sea, Antarctica
Paper Title: A balanced model of the food web of the Ross Sea, Antarctica Abstract / Description ... : A quantitative food web of the Ross Sea is presented here as a step towards investigating ecosystem ... effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). The model consolidates quantitative ... information on trophic links across all the major biota of the Ross Sea and tests for data consistency. The ... the 69°S line of latitude; to the south by the per- manent ice shelf; to the east and west by land ... biota will make the choice of groupings somewhat of a compromise. Many of the lower and middle TL ... consumption (excreted material); (ii) loss of material through exudants (e.g. prima- rily phytoplankton ... of animals that died due to predation but were not consumed at the time; (v) transfers of biota ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 1–31 : Autor(es): Pinkerton, M.H., J.M. Bradford-Grieve and S.M. Hanchet
-
A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Paper Title: A review of the diet and at-sea distribution of penguins breeding within the CAMLR ... bioenergetics models that estimate the amount of prey consumed by predators are required to inform such policy ... . These models require information on the number of predators in a population, their nutritional demands ... published information on the diet and at-sea distribution of the six penguin species that breed in the CAMLR ... part of the trip, since that captured earlier will already have been digested by the time they return ... stages of a foraging trip: commuting penguins porpoise and so are more visible than foraging ones that ... ). Several studies have found adverse effects of devices on penguin foraging trip parameters and breeding ... assist with post-processing. Inaccurate positions need to be filtered, which leads to further loss of ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Autor(es): Ratcliffe, N. and P. Trathan
-
The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Paper Title: The role of fish as predators of krill (Euphausia superba) and other pelagic ... : Krill forms an important part of the diet of many Antarctic fish species. An understanding of the role ... of fish as krill predators in the Southern Ocean is critical to understanding how changes in fish ... paucity of biomass estimates and the mostly qualitative nature of food studies. Food consumption estimates ... wide area of the Southern Ocean or in a small area east of the tip of the Antarctic Penin- sula (B ... . Soft-bodied plankton organisms were the most abundant prey of B. antarcticus east of the tip of the ... Science, Vol. 19 (2012): 115–169 115 THE ROLE OF FISH AS PREDATORS OF KRILL (EUPHAUSIA SUPERBA) AND ... Road Cambridge CB3 0ET United Kingdom M.A. Collins Director of Fisheries/Senior Executive ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Autor(es): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
-
Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
Paper Title: Estimates of circumpolar abundance of Antarctic krill based on recent acoustic ... density measurements Abstract / Description: The total circumpolar abundance of Antarctic krill ... (Euphausia superba) is estimated using recent measurements of krill density from acoustic surveys and ... historical information on the overall range of krill. The biomass estimates fall between 60 and 155 million ... Discovery Reports provide information on krill over much of its range (Marr, 1962; Mackintosh, 1973), and ... distribution maps produced in the Discovery Reports (Marr, 1962; Mackintosh, 1973) support modern ideas of ... . METHODS The map of krill distribution produced by Marr (1962 -Figure 135, p. 394) was digitised to ... ). Figure 1: The distribution of Euphausia superba derived from di itising Figure 135, p. 394 in Marr (1962 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Autor(es): Nicol, S., A.J. Constable and T. Pauly