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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
precautionary catch limit on krill (Euphausia superba) in Statistical Area 48. The measure also implies an ... current fishing patterns; and (vi) the potential for delay in implementing the alternative. An alternative ... for implementation. However, two of the alternatives (i.e., protective zones and critical periods) are ... Paper Title: Alternative methods for determining subarea or local area catch limits for krill in ... single year. Then, for the following two years, that subarea would be closed to fishing. For example, if ... patterns; and (vi) the potential for delay in implementing the alternative. An alternative is less likely ... available for implementation. However, two of the alternatives (Le., protective zones and critical periods ... not an acceptable, long-term strategy for managing the krill fishery (SC-CAMLR, 1991). Considering ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 237–249 : Автор(ы): Watters, G. and R.P. Hewitt
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Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
spatially explicit modelling approaches is also an important next step for Dissostichus spp. assessments ... -recapture programs for Dissostichus spp. and best practice for addressing bias Abstract / Description: The ... Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data, was used ... account for their effects in stock assessments for Dissostichus spp. are also summarised. In nearly all ... = ´ . (2) Deriving an accurate value for N using this esti- mator is based on a variety of assumptions ... for depredation on tagged fish that may have occurred, however, we are unaware of such an adjustment ... ). Based on these achievements, establishing tag- recapture programs has been a high priority for CCAMLR ... tag- ging program designs and management measures, its impact on N̂ , and the priority for addressing ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Автор(ы): Welsford, D.C. and P.E. Ziegler
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A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia
, incorporating two scenarios for the stock-recruit relationship of the host: (i) resilience; and (ii) sensitivity ... strategy for this crab population. The main data requirements for improving on this preliminary study are ... Paper Title: A preliminary investigation of the possible effects of rhizocephalan parasitism on ... reduce the effective spawning stock biomass, and this clearly has implications for stock management. The ... I would like to thank Dan Hoggarth for valuable comments on an earlier draft of this paper. I also ... population (e.g., W ( F = 0, p = 63%), curve a) . Harvesting starts in year 10 on an unexploited ... -parasite model is constructed, incorporating two scenarios for the stock-recruit relationship of the host ... healthy and infected animals are harvested, even if the fishing mortalities on the two categories are ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 175–192 : Автор(ы): Basson, M
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove
Paper Title: Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and ... sampling period of 24 years which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The ... the non-commercially fished Notothenia coriiceps is still evident. At Potter Cove, despite an overall ... Cove, the relative abundance of N. rossii showed an increase in 2002 and 2003, whereas G. gibberifrons ... abundance of N. rossii in the split-years 1995/96, Table 1: Results of the ANOVAs performed on total and ... ) Notothenia rossii, total catches Years 19.8835 20 0.994173 14.6162 <0.00001 Error 59.3803 873 0.068019 ... (b) Gobionotothen gibberifrons, total catches Years 9.8124 20 0.49062 42.9468 <0.00001 Error 9.9731 ... 873 0.01142 (c) Notothenia coriiceps, total catches Years 32.4684 20 1.623422 11.8377 <0.00001 ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Автор(ы): Barrera-Oro, E.R. and E.R. Marschoff
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On the presence of Paralomis spinosissima and Paralomis formosa in catches taken during the Spanish survey Antártida 8611
Paper Title: On the presence of Paralomis spinosissima and Paralomis formosa in catches taken ... during the Spanish survey Antártida 8611 Abstract / Description: This paper provides information on ... m. In the whole of the area surveyed, the two crab species of the genus Paralomis (P. spinosissima ... seven hauls of the 29 made around Shag Rocks and in 20 of the 104 hauls made at South Georgia. P ... one of which it appeared together with P. spinosissima. From the 11 hauls for which information on ... . Tows were 30 minutes in duration and the vessel speed was three knots. The trawl used for sampling ... the haul and the species of fish caught together with the crabs. It also contains information on the ... that the area studied is on the southernmost limit for the species family Lithodidae in the Atlantic ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 165–173 : Автор(ы): López Abellán, L.J. and E. Balguerías
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Preliminary atlas of Balaenopterid whale distribution in the Southern Ocean based on pelagic catch data
consists of 30 maps of catches of fin whales for each season from 1952/53–1961/62 for January, February and ... March, plus three summary maps of fin whales catches for the years 1952/53–1961/62 combined, for each of ... Paper Title: Preliminary atlas of Balaenopterid whale distribution in the Southern Ocean based on ... the locations of pelagic catches of Balaenopterid whales by month between 1931/32–1979/80. Two sets of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 113-193 : Автор(ы): Mizroch, S.A. et. al
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Additional data on anti-Brucella antibodies in Arctocephalus gazella from Cape Shirreff, Livingston Island, Antarctica
Paper Title: Additional data on anti-Brucella antibodies in Arctocephalus gazella from Cape ... antibodies in the Southern Hemisphere was recorded in two pinniped species from Antarctica: Antarctic fur ... first records, this paper describes additional data on Brucella antibodies in A. gazella obtained at ... -vascular fluid for this serological research. We recognise the c-ELISA test as the best option in this ... risk status of the species affected, possibly having an impact on the population dynamics. These are ... ON ANTI-BRUCELLA ANTIBODIES IN ARCTOCEPHALLIS GAZELLA FROM CAPE SHIRREFF, LIVINGSTON ISLAND ... Medicina Preventiva Animal Facultad de Ciencias Veterinarias y Pecuarias Universidad de Chile Casilla ... instance of anti-Bvz~celln antibodies in the Southern Hemisphere was recorded in two pinniped species from ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 147–154 : Автор(ы): Blank, O., P. Retamal, P. Abalos and D. Torres
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Effects of different harvesting strategies on the mackerel icefish Champsocephalus gunnari around South Georgia
the mackerel icefish (Champsocephalus gunnari) have been simulated for a period of 30 years. These ... 50% F 0.1 with F increasing three or five years after a good recruitment; pulse fishing at an ... constant levels of fishing mortality to the strength of the incoming year class. An increase of F, however ... Paper Title: Effects of different harvesting strategies on the mackerel icefish Champsocephalus ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 77–100 : Автор(ы): Köster, F.W. and K.-H. Kock
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
Paper Title: Diet study of Antarctic toothfish caught in the east Antarctic based on stomach ... for Antarctic toothfish (Dissostichus mawsoni) in the small-scale research unit (SSRU) 5841C in the ... toothfish stomachs. Stomach content analyses showed that Antarctic toothfish fed primarily on fish and to a ... between them. δ 15 N values of Antarctic toothfish were higher than for the other species collected ... (14%). The mixture was shaken, sealed under nitrogen and then heated on a hot block at 100°C for 30 ... content analysis, which only offers information on the recent food items of an organism. In contrast ... , 1987; Michener and Schell, 1994). δ13C in an animal usually occurs within 1‰ compared with that of ... toothfish were measured on board to the nearest centimetre and gram respectively. The samples for muscle ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Автор(ы): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
fluctuations together with preliminary information on adult survival and breeding success patterns for certain ... suggested by the Joint Meeting of CCAMLR's Working Group on Krill (WG-Krill) and Working Group for the ... facilitated discussion on the interpretation of the preliminary estimates of adult survival rate provided for ... Paper Title: Possible effects of different levels of krill fishing on predators – some initial ... reduced in a particular year if an upper bound of 1.5 yr-' on the effective annual fishing mortality for ... 1 and 2), even in the absence of fishing on krill. This is obviously the case for the two bird ... reproducing In an approximate sense, the first two terms on females. the right hand side of the equation ... penguin). The authors are appreciative of the comments of two anonymous reviewers on an earlier version ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Автор(ы): Butterworth, D.S. and R.B. Thomson
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