Search results
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The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns
reached their peak in the early and mid-1980s and the early 1990s respectively. The years 1980, 1986 ... ecosystem. Limited data on the deployment of the Soviet krill fi shing fl eet from 1972 to 1985 ... in the 15-year period from January 1977 to December 1991, the period during which the Soviet krill fi ... in the zonal (along longitude) and meri- dional (along latitude) directions (Kats, 1960). In the southern ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Author(s): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky
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Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data
and winter in SS and SO. Daily average trawling depth tended to be shallower during austral summer and early ... to shallower depths again in early spring. The average catch-per-unit-effort (CPUE) was highest during the day ... and early autumn, deepened gradually from autumn and reached maximum depth in winter in the Scotia Sea ... , shifting to shallower depths again in early spring. The average catch-per-unit-effort (CPUE) was highest ... trawling depth tended to be shallower during austral summer and early autumn, deepened gradually from ... in early spring. The average catch- per-unit-effort (CPUE) was highest during the day and lowest at night ... to colour again in early spring. This seasonal change corresponds to the daily change in average trawling ... and shallowest during evening twilight. (ii) Daily average trawl depth was shallow during summer and early ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 163–172 : Author(s): Taki, K., T. Hayashi and M. Naganobu
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Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula: towards an improved understanding of off-peak census correction factors
the first egg is laid, and the point at which the nest is officially deemed ‘active’) follows a normal dis ... of clutch initiation (Days after October 1) M od el p re di ct io n (D ay s af te r O ct ob er ... 1 ) r = 0.752 Mean date of clutch initiation (days after 1 October) 55 50 45 40 35 30 M od el p re di ... rates) have important implica- tions biologically, some of which have been dis- cussed here ... counts with non-standard timing. The challenge is, therefore, to correct ‘off-peak’ census counts to make ... them comparable with current standard methods. Census correction involves knowing (i) how the census is ... the peak of clutch initiation is presented and, along with a simple estimation of species-specific ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 149–165 : Author(s): Lynch, H.J., W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
season, and would therefore offer more protection in years when spawning starts early in the season ... the early 1990s have demonstrated that C. gtlnnari biomass at South Georgia underwent several major ... ) for many years. Despite the lack of recent data, there is evidence from the earlier period ... following the introduction in 1998 of a new CCAMLR 'fishing year' (CCAMLR, 1998, paragraphs 9.1 and 9.2 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Author(s): Parkes, G.B
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
in all years 1988 to 1991. In 1987, 1988 and 1991, 75% of the catch in Subarea 48.2 between December ... ranges and population sizes from the literature are used to show that for some years catches within 100 ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988 to 1991 ... the literature are used to show that for some years catches within 100 km of predator colonies between December ... years, the last significant catches being in the early 1980s (Kock and Koster, 1990; CCAMLR, 1991 ... within 40 km of the coast, and 90% within 80 km in all years 1988 to 1991. In 1987, 1988 and 1991,75 ... are used to show that for some years catches within 100 km of predator colonies between December and March ... is fairly consistent from year to year, and is located over the shelf break to the north and west ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 287–303 : Author(s): Agnew, D.J.
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Spawning locations of mackerel icefish at South Georgia
and temporal distribution and early life history relevant to monitoring year class strength and recruitment ... INTRODUCTION Over the past 30 years there has been a fishery, large in some seasons, for mackerel icefish ... and early April 1978. No such concentrations had been present there when the same bays had been sampled ... in February of the same year. Further evidence that spawning occurs in the inshore waters has come from ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Author(s): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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Surface areas of seabed within the 500 m isobath regions within the South Shetland Islands (Subarea 48.1)
can directly affect point estimates of standing stock. Early estimates of seabed areas within ... and ship depth soundings. Science, 277: 1956-1962. Wessel, P. and W.H.F. Smith. 1996. A global self ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 133–140 : Author(s): Jones, C.D., S.N. Sexton and R.E. Cosgrove III
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Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning
current (ACC) Front) and 5 (Antarctic open ocean) are dis- tributed across large spatial areas ... to assess: (i) the location and extent of existing spatial man- agement areas (ii) the distribution ... and is available in the CCAMLR Statisti- cal Bulletin (CCAMLR, 2012). Information on existing conservation and man ... fished only once, while others have large catches reported every year. These differences can ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Author(s): Grant, S.M., S.L. Hill and P.T. Fretwell
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A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements
. They specify the minimum aerial dis - tance and allow fi shers to decide how best to achieve it (including ... , detailed in the appendix to Conservation Measure 29/X, were based on early observations of streamer lines ... and competitive interactions of individual species within that assemblage, fi shing location, time of year ... with a control of no deterrent across four experimental cruises over several years. Further, he demonstrated ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Author(s): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke
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Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion island, 1996/97 and 1997/98: in relation to longline fishing activity
) in the South Indian Ocean peaked in the mid-1980s and has since decreased during the early to mid-1990s ... searched for marine debris during a whole-island census during early incubation in January 1998 ... AND CONCLUSIONS Entanglements Incidental Finds Four seabird entanglements were observed during the two years ... )) and that the amount of hooks set in the respective years was very similar (4.3 million for Marion Island (Ryan ... Paper Title: Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion ... debris found in association with seabirds at sub-Antarctic Marion Island for the period May 1996 to April ... been found in association with seabird nests at Marion Island. Fishery-related marine debris was found ... most frequently in association with wandering albatross nests, while 'other' (non-fishing ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 85–96 : Author(s): Nel, D.C. and J.L. Nel