Search results
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Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003
petrels and grey petrels is explained by the time of year, geographical area and type of longliner (manual ... petrels and grey petrels is explained by the time of year, geographical area and type of longliner ... Kerguelen Islands fi shing vessels. Seabirds are attracted by the baited hooks during the setting of the ... line sinks. The high mortality rates of albatrosses induced by the longliners coupled with the ... offal) in an attempt to reduce the incidental by-catch of sea- birds. In spite of these measures and ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Author(s): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol
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Reproductive performance of seabirds and seals at South Georgia and Signy Island, South Orkney Islands, 1976-1987: implications for Southern Ocean monitoring studies
rate. 1977-78 and 1983-84 were summers of particularly poor reproductive performance by almost all ... particularly poor reproductive performance by almost all species; circumstantial evidence relating this to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 445-447 : Author(s): Croxall, J.P., T.S. McCann, P.A. Prince and P. Rothery
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Myctophids in the diet of Antarctic predators
information on the myctophid component of the diet of Antarctic predators. Myctophids were found in the diet ... . Myctophids were found in the diet of one species of squid, 18 species of fish (Nototheniidae - eight ... of the diet of Antarctic predators. Myctophids were found in the diet of one species of squid, 18 species ... - n~Tb, KHTOBbIX nTHlJ, - O~HH H 6aK~aHoB - O~HH) H ~ByX BH~OB TIO~eHeH. MHKTOCPH~bI B palJ,HOHe ... 35 species of myctophids are found, i.e. within the CCAMLR Convention Area (Hulley, 1990 ... distribution and are found in localised areas in APF waters (eight species in the Atlantic sector ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 335–368 : Author(s): Sabourenkov, E.
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Improving estimates of Adélie penguin breeding population size: developing factors to adjust one-off population counts for availability bias
population obtained by adjusting a one-off count using availability adjustment factors will not account for ... the breeding population obtained by adjusting a one-off count using availability adjustment factors ... adjusted by some date- or stage-specific factor if the count is to form the basis of an estimate of some ... vegetation, for example, may not be available for counting by an observer passing overhead in an aircraft ... , and marine species diving underwater may not be available for counting by an observer in a passing ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 229–241 : Author(s): Southwell, C., J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
by illegal activity. Both the new and the current method suffer from the fact that the observation ... potentially better handle the evasion of detection by illegal activity. Both the new and the current method ... , by-catch and incidental mor- tality which can be attributed to illegal fi shing. Illegal fi shing is ... this paper, the only type of observation con- sidered here is that reported by a fi shery patrol ... , which occurs for a given set of observations for an area can be given by: est i i F P D= ∑ (2 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Author(s): Ball, I
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Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica
but one of which are found in the Southern Ocean (Kock, 2005a, 2005b). They pos- sess adaptations suited ... ). Balushkin and Prutko (2006) found similar results with most fish in pre-spawning condition ... were obtained for male and female fish respectively. Reader error Both readers found C. dewitti ... , Antarctica Abstract / Description: Icefish (Channichthyidae) specimens were randomly collected by observers ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 139–165 : Author(s): Sutton, C.P., M.J. Manning, D.W. Stevens and P.M. Marriott
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Assessing the power to detect systematic change in Adélie penguin foraging trip duration
, additivity was found to apply on the logarithmic scale. Analysis of data on the logarithmic scale has been ... and Ice Data Center (Comiso, 1990, updated cur- rent year) found at www.nsidc.org/data/nsidc- 0002.html ... greater in the crèche stage than the guard stage. The gain obtained by increasing the number of penguins ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Author(s): Southwell, C., J. Clarke and L.M. Emmerson
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Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)
that all the depths in which toothfish were found at non-negligible den- sity (CPUE) within an SSRU could ... toothfish. For instance, the Australian BROKE survey (January–March 1996) found no lar- val toothfish ... fish were actually found (Figure 6), and that which therefore might approximate most closely ... very low productivity. Estimates of average biomass were made by comparison of standardised catch rates ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Author(s): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán
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Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001
research and fi shing surveys, it was found that SST monitoring could be used in order to forecast ... appraised by comparing them with krill catches obtained under various hydrological conditions. In comparison ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Author(s): Vanyushin, G.P
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Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... 48.1, 48.2, 48.3 and 48.4) is limited by a trigger level of 620 000 tonnes until a procedure for ... criteria. From the early 1990s until 2009 the catch by the Antarctic krill fishery remained around 120 ... all areas regulated by CCAMLR is over 40 times the current catch (Nicol et al., 2012). Recent ... yield model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Author(s): Kinzey, D., G. Watters and C.S. Reiss