Search results
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Defining smaller-scale management units to further develop the ecosystem approach in managing large-scale pelagic krill fisheries in Antarctica
unimportant in the fi shery. The differentiation between the eastern and western parts of South Orkney ... to June 2000: Subarea 48.3 (top panel), Subarea 48.2 (middle panel) and Subarea 48.1 (bottom panel ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 117–131 : Author(s): Constable, A.J. and S. Nicol
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
will curtail their fishing trips. This leads to a negative correlation between the amount of fishing ... , the more often the illegal fishers will curtail their fishing trips. This leads to a negative correlation ... for an area can be given by: est i i F P D= ∑ (2) where Di is an estimation of the maximum fi shing ... - verts the sum of maximum fi shing estimates to an expected number of illegal fi shing days. Di ... on the latest or earliest dates on which it was possible to fi sh the area, or Di could be set to some ... in the calculation of Di is that the previous and subsequent patrol vessels would have detected the illegal fi ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Author(s): Ball, I
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Preliminary study on nesting Adélie penguins disturbance by unmanned aerial vehicles
). Quantitative information on potential UAV dis- turbance of wildlife is rather scarce – observations on species ... N oi se le ve l: 70 d B a t a di st an ce o f 5 m 10 –5 0 m A G L Im pa ... (p en gu in n oi se ) G oe be l e t a l., 20 15 O sp re y (P an di on ha lia et ... U A V , n o la st in g di st ur ba nc e (q ui ck re tu rn to p re -s ur ve y be ha vi ou ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 1–16 : Author(s): Korczak-Abshire, M., A. Kidawa, A. Zmarz, R. Storvold, S.R. Karlsen, M. Rodzewicz, K. Chwedorzewska and A. Znój
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Natural mortality of grey rockcod (Notothenia squamifrons) in various areas of the Indian sector of the Southern Ocean
the first years of exploitation (Le. 1978 to 1979 for the Ob and Lena Banks and 1969 to 1972 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 141–146 : Author(s): Zaitsev, A.K.
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
were 2.5–4.7 cm SL. Similar- ly, Kellerman (1986) studied lengthfrequency dis- tributions of Antarctic ... , primarily derived from clear modes in lengthfrequency distributions. DeWitt and Tyler (1960) found ... the 0+, 1+ and 2+ year classes. Hubold (1985) examined silverfish occurring in the eastern and southern Weddell Sea ... ) studied the early lifehistory of Antarctic silverfish occurring in the eastern and southern Weddell Sea ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Author(s): Sutton, C.P. and P.L. Horn
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Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region
. These biomass and abundance plots should be regarded as relative population dis- tribution plots because ... to the north, with smaller fish dis- tributed on the shelf, larger fish on the slope and spawning fish ... methods (Chapman and Robson, 1960; Hoenig, 1983; Punt et al., 2005), and adopted by CCAMLR for use ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Author(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker
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Target strengths of Antarctic krill (Euphausia superba)
and Nakken 1972, Johannesson and Mitson 1983), knowledge of the target strength is essential. The problem ... estimation: a practical guide. ICES Coop. Res. Rep., 144: 69 pp. FORBES, S.T. and O. NAKKEN. 1972. Manual ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Author(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
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A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data
. 2008. A hypo- thetical life cycle for Antarctic toothfish (Dis- sostichus mawsoni) in the Ross Sea ... . Gaffney. 2008. Population subdivision in the Antarctic toothfish (Dis- sostichus mawsoni) revealed ... , S. and P.J. Grimes. 2010. Length- and age-at-spawning of Antarctic toothfish (Dis- sostichus mawsoni ... rates were excluded from the model. As a result, the use of the ‘selected’ trips dataset results ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Author(s): Mormede, S., A. Dunn and S.M. Hanchet
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
from both the eastern and western ends of South Georgia were selected for further analysis by Watkins ... for the eastern and western survey areas carried out during the Core Programme (see Figure 1). Using ... ., 1997 and in press) shows that this is frequently the case, especially within the area of the eastern ... were only found in offshore waters at the eastern end of the island. The calculation of recruitment ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Author(s): Watkins, J.L
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
time by applying the method to the annual fishing trips for each vessel. methods Initially, the case ... is defined as an individual vessel, but the analysis is later extended to vessel- season (trip ... between 15 January and 28 February. Each vessel is assigned a unique trip number for each season, which ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Author(s): Mormede, S. and A. Dunn