Search results
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Environment–krill relations in the South Georgia marine ecosystem
Marine Ecosystem For the eastern area of the Scotia Sea around South Georgia, it has been suggested ... temperature in the 0-50 m layer at the eastern South Georgia shelf (square: 53.75-52.25"s; 36.5-35.5OW ... current velocities (Orsi et al., 1993). The WSC zone extends northwards into the eastern Scotia Sea ... Foster, T.D. and J.H. Middleton. 1980. Physical oceanography of the eastern Scotia Sea. Antarctic l. US ... Paper Title: Environment–krill relations in the South Georgia marine ecosystem Abstract ... / Description: Interannual variability in the Southern Ocean ecosystem has long been noted and physical factors ... variability and it is only recently that physical datasets have been generated for the Southern Ocean. In this ... study, time series of krill abundance (CPUE) indices were derived from Soviet fishing operations in the ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 13–30 : Author(s): Fedoulov, P.P., E. Murphy and K.E. Shulgovsky
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Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
. 1995. Distribution and biology of five grenadier fish (Pisces: Macrouridae) from the upper and middle ... Paper Title: Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern ... of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean (Divisions 58.4.1 and 58.4.3 ... ) based on results from a trawl survey in 1999. This is the first quantitative assessment of M. carinatus ... in this region. M. carinatus was the most common species caught in each haul, comprising on average ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Author(s): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
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Seabird interactions with longlining operations for Dissostichus eleginoides at the South Sandwich Islands and South Georgia
). There is increasing evidence tha t these decl ines a re re la ted to inc identa l mortality associated ... in their longline f ishery. In respect of longl ine f isheries for Dissostichus eleginoides in the Southern ... cost in lost time, equipment or fishing efficiency should not be under-estimated, however, and may ... is lost during fishing operations, mixed polyester and polyethylene rope degrades more quickly ... mortality was seen and only one bird was caught on a hook; nevertheless many species in these aggregations ... of birds are clearly potentially vulnerable to setting operations in daylight hours. Several species ... grey-headed albatrosses, whose populations are in serious decline at South Georgia, were rare; their ... vulnerability to longlining operations in the South Sandwich Islands may, therefore, be low. Quantitative data ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 143–153 : Author(s): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.
temperatures (<1°C) occurred below 1 000–1 500 m depths on the eastern BANZARE Taki et al. 148 Ta bl ... in the eastern area. Thus, a certain proportion of adult D. mawsoni on BANZARE Bank could originate from ... of antifreeze in the former species. Dissostichus eleginoides showed a resting stage in sexual ... maturity, while D. mawsoni was in developing condition. In D. mawsoni, small fish contributed a very low ... latitudinal patterns in sexual maturity and size composition. The study indicates that the management of ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Author(s): Taki, K., M. Kiyota, T. Ichii and T. Iwami
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Patterns and processes in the distribution and dynamics of Antarctic krill
summer 1981; the middle panels in Figure 2 indicate strong coherence in the distributions. Weber et al ... Paper Title: Patterns and processes in the distribution and dynamics of Antarctic krill Abstract ... critical processes to be added. An analysis of spatial distribution of krill in the Bransfield Strait area ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 281–299 : Author(s): Levin, S.A., A. Morin and T.M. Powell
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Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996
the SMMR data series, images were selected as close as possible to the middle day of each month. Images ... four periods of extensive ice cover during the last 18 years. Variability in seasonal timing, areal ... with features described by Stammerjohn and Smith (1996) for ice cover in the Bellingshausen Sea ... . Periods of extensive winter ice cover peaked in 1980, 1986, 1991and 1995 and were foreshadowed by the late ... of sea-ice cover were integrated over time to produce an annual index of sea-ice cover in units of 10 ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Author(s): Hewitt, R
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Modelling krill recruitment
that: In fact no generality is lost if we put E[A,] = 1 everywhere, and so: If the recruitment in each year ... observed values of the mean proportion of recruits and its variance to model recruitment in a krill ... population in terms of numbers of recruits. The method includes the calculation of natural mortality and ... in the observed recruitment parameters. File: 04delamare-mod-rec.pdf ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 49–54 : Author(s): W.K. de la Mare
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An impact assessment framework for bottom fishing methods in the CAMLR Convention Area
to that of the standard set). • Scenario 3: Floats on both ends lost; attempted recovery of lost gear (additional ... impact arises from dragging a recovery grapnel to snag and recover the lost backbone). • Scenario ... Paper Title: An impact assessment framework for bottom fishing methods in the CAMLR Convention ... between fisheries employing different bottom fishing methods. New Zealand implemented this approach in its ... impact assessment in fisheries using bottom impacting methods, to inform mitigation efforts and as a ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith
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Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)
as three stocks : South Georgia, Kerguelen and Macquarie (Laws, 1960). Population decrease was reported ... reach Antarctic ~aters where they would recover the weight lost during lactation (Vergani, 1986 ... " pp. 10. SCAR XIX, San Diego, Califronia, USA. LAWS, R.M. 1960. The southern elephant seal ... Paper Title: Observations on haul-out patterns and trends in the breeding populations of southern ... were taken into consideration: haul-out pattern and the female population trend. In both places, the ... intrinsic population growth rate is positive. In 1982, at Stranger Point, a sharp decrease of the female ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Author(s): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli
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Assessment of krill flux factors in waters of South Orkney Islands during summer 1996
was 0.14 S,, in section 5 and -0.16 S , in section 6 (Figure 2, Table 1). At the western and eastern ... be located as far to the south of the South Orkney Islands as possible. The eastern boundary probably also ... Paper Title: Assessment of krill flux factors in waters of South Orkney Islands during summer ... February to 7 March 1996 to assess krill flux factors in Subarea 48.2. The study area (80 x 240 n miles ... ) was located in the zone of interaction between waters of the Antarctic Circumpolar Current (ACC) and ... in the past. The geostrophic transport of krill across boundaries of the study area was calculated as ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 195–204 : Author(s): Kasatkina, S.M., V.N. Shnar, M.I. Polischuk, A.M. Abramov and V.A. Sushin