Search results
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Evaluating the impact of multi-year research catch limits on overfished toothfish populations
toothfish stock in Division 58.5.2 (Candy and Constable, 2008; SC-CAMLR, 2009c) and are shown in Table 1 ... median status (ratio of median spawning stock biomass, SSB, at Table 1: Input parameters for ... class in stock 1 year Last age class in stock 35 years Oldest age in initial structure 36 years ... Age fully selected Season Catch during fish-down phase Catch during research phase 5 11 1 Jan ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 47–55 : Author(s): Welsford, D.C
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Fishery Report 2014: Exploratory fishery for Dissostichus spp. in Division 58.4.1
Introduction to the fishery ................................................................. 1 Reported ... catches ........................................................................ 1 Illegal, unreported ... related to this report is outlined in bold. Depths between 600 and 1 800m (the ‘fishable depths’ for ... which that season ended, e.g. 2014 represents the 2013/14 CCAMLR fishing season (from 1 December 2013 ...
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A hybrid approach to acoustic classification and length estimation of krill
a fl uid sphere (Johnson, 1977): 44 2 / / 42 / 1/4 4 / 4 / /2 / 1.5 ; 1 1.5 1 ; 1 1.5 1 ... = selected frequencies in kHz); • fr = (fj /fi) > 1 is the ratio of the selected frequencies. The ... asymptotic limits of Δfj / fi are: if 42 /1.5 1; r m fj fif k a then 4 /fj fi rfΔ ≈ if 42 4 /1.5 ... approximately the input/output values: 1 2 44 1 1 2 4 44 2 2 1.5 , 1 2; 1.5 , 2 1 m r r r m r r a k f a ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Author(s): Azzali, M., I. Leonori and G. Lanciani
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Methodology of data collection on net selectivity and accidental mortality of fish passing through the mesh of the codend
~aCTH ~nH ynaBnHBaHHH p@6, OTceHHH@X H3 MelliKa, H BHYTpeHHeH (pHC. 1) ~nH rrpe~OTBpame HHH yxo~a p ... , rrpHBegeHHhlMH B Ta6nHue 1. BHelliHHH H BHYTpeHHHH ~aCTH p@6oynoBHTenH B@KpaHBaWTCH H3 ceTHoro rronOTHa rro ... ~opMe, rrOKasaHHOH Ha PHC, 1. ITPH gBYXpHg- HOM MelliKe d - ~HaMeTp HHTKH cooTBeTcTBywmHH o~HOpHgHOH ... rrpHlliHBaWT CHapY~H K Bepx- .HeH rrnaCTH UHnHHgpH~ecKOH ~aCTH MelliKa. KpOMKY h 1 , ~~HHa KOTOPOH Ha 30 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 99-121 : Author(s): VNIRO (USSR)
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A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery
scientists illustrates many of the fea- tures of control strategies (Figure 1). According to Rademeyer et al ... time-step in response to new state estimates. The following sections provide more detail. Tables 1 ... and Cannon 122 Table 1: Parameters used to implement the operating model. Parameter Area 0 Area 1 ... Area 2 Mortality rate (harvested species) M1 = 0.2 M2 = 0.2 Mortality rate (predators) M’1 = 0.05 ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Author(s): Hill, S.L. and M. Cannon
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Fishery report: Dissostichus eleginoides Kerguelen Islands (Division 58.5.1)
Page 1. Details of the fishery ... .................................................................... 1 1.1 Reported catch...................................................................... 1 1.2 ... IUU catch ........................................................................... 1 1.3 Size ... ................................................................................... 10 FISHERY REPORT: DISSOSTICHUS ELEGINOIDES KERGUELEN ISLANDS (DIVISION 58.5.1) 1 ...
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Fishery Report: Dissostichus eleginoides (TOP) Kerguelen Islands (Division 58.5.1)
: Dissostichus eleginoides (TOP) Kerguelen Islands (Division 58.5.1) CONTENTS Page 1. Details ... of the fishery .................................................................... 1 1.1 Reported ... catch ...................................................................... 1 1.2 IUU catch ... . 2012 represents the 2011/12 CCAMLR fishing season (from 1 December 2011 to 30 November 2012 ...
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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)
depressions which let a number of coastal species occur as deep as 1 500 m and more (Kock, 1992). The ... are most abundant (SC-CAMLR, 1990). Dense concentrations of 1-year-old fish have been observed ... mycto- phids and bathylagids in RMT25 catches occurred between 400 and 1 000 m during the day and ... western side of South Georgia to the west of Shag Rocks in the depth range 0–1 000 m was 2.93g m–2 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Author(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.2
CONTENTS Page 1. Details of the fishery ... .................................................................... 1 1.1 Reported catch...................................................................... 1 1.2 ... 1. Details of the fishery The exploratory fishery for Dissostichus spp. in Division 58.4.2 was ... no more than 40 tonnes could be taken in SSRU E (see Figure 1). The other SSRUs (B, C and D) were ...
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Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish
: jk hijk jk hijk l hi u L = å å (1) where lhijk was the number of hooks lost during season h ... ————————————————————————— 1 SSRU boundaries were redefined in CM 41-01 in 2011 (CCAMLR, 2011). 19 Unaccounted fishing ... ) values for individual vessel-seasons removed between 23% and 74% of sets each season (Table 1). The ... loss was reported, it was typically fewer than 1 500 hooks, but had been as high as 16 000 hooks ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Author(s): Webber, D.N. and S.J. Parker