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Uncertainty in reported geographical distribution and weight of krill catches from Norwegian krill fishing vessels operating continuous fishing systems
ensure catch reporting in accordance with the present conservation measure (CM 21-03) and to investigate ... average values of ca. 18 hours for low catch rates to ca. 3 hours for high catch rates. The deviance in ... the impacts of the uncertainties in catch weight and spatial distribution are likely to be minor ... approximately normally distributed around a mean value of 1.6 tonnes with ca. 90% of the deviances contained ...
Meeting Document : WG-EMM-18/22 : Autor(es): G. Skaret, T. Knutsen, F. Grebstad and O.A. Bergstad
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Приложение 21-03/A Уведомление о намерении участвовать в промысле Euphausia superba [Notification of intent to participate in a fishery for Euphausia superba]
Abstract: Presented Annex 21-03/A as required by Conservation Measure 21-03 with set nets ... configuration and scheme of marine mammal exclusion device. Author(s): Delegation of Ukraine Title: Приложение ... 21-03/A Уведомление о намерении участвовать в промысле Euphausia superba [Notification of intent to ... participate in a fishery for Euphausia superba] Approval: Approved ...
Meeting Document : WG-EMM-14/46 : Autor(es): Delegation of Ukraine
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Informe de pesquería: Dissostichus eleginoides Islas Crozet dentro de la ZEE francesa (Subárea 58.6)
2005/06 2006/07 Weighted Frequency (proportion of the catch) Le ng th (c m ) Figura ... LAYOUT OF CCAMLR DOCUMENTS AND REPORTS ... 0.50 (0.45–0.56) 0.05 Year In de x 2000 2002 2004 2006 0.0 0.5 1.0 1.5 2.0 2.5 3.0 ... (a) Unadjusted model Year In de x 2000 2002 2004 2006 0.0 0.5 1.0 1.5 2.0 2.5 3.0 (b) Adjusted model ...
Document : Site Section: Publications
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Informe de pesquería: Dissostichus eleginoides Isla Heard (División 58.5.2)
2000/01 2001/02 2002/03 2003/04 2004/05 2005/06 2006/07 Weighted Frequency (proportion of the catch ... 2006/07 Weighted Frequency (proportion of the catch) Le ng th (c m ) Figura 2: Frecuencias ... LAYOUT OF CCAMLR DOCUMENTS AND REPORTS APÉNDICE ... de un período prolongado de ‘burn-in’ y de ‘ralear’ drásticamente las muestras MCMC. Se recomienda el método ...
Document : Site Section: Publications
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
measures put in place by CCAMLR to date. These measures are re-examined in the light of new information ... , and a strategy for the future protection of young fish and spawning aggregations of C. gunnari in ... Paper Title: Protecting young fish and spawning aggregations of Champsocephalus gunnari in ... spawning aggregations in fisheries generally, and specifically in the Champsocephalus gunnari fishery in ... are re-examined in the light of new information, and a strategy for the future protection of young ... , CCAMLR INTRODUCTION Since 1984, CCAMLR has introduced a variety of conservation measures for the C ... catches of small fish. The CCAMLR Scientific Committee has also been active in encouraging the ... monitoring and evaluation of the catch of juvenile and larval C. gunnari in the krill fishery (e.g. Everson ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Autor(es): Parkes, G.B
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Mitigation of seabird captures during hauling in CCAMLR longline fisheries
Paper Title: Mitigation of seabird captures during hauling in CCAMLR longline fisheries Abstract ... as 1994/95 when steps were taken to reduce the attraction of seabirds to vessels during the hauling ... process. Since 2003, increased efforts have been made to improve the design and performance of bird ... these two key functional characteristics into the specification of a BED to be deployed by longline ... , CCAMLR agreed in 2009 to amend Conservation Measure 25-02 ‘Minimisation of the Incidental Mortality of ... . 156 Introduction The incidental capture of seabirds during line setting in longline operations has ... , dur- ing line setting has reduced the total number of dead seabirds in by-catch from over 5 000 in ... . However, this success in reducing the number of seabirds killed during line setting has highlighted the ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Autor(es): Reid, E., B. Sullivan and J. Clark
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Consideration of major issues in ecosystem monitoring and management
availability of krill, variation in vital rates of the dependent species and the overlap between commercial ... Paper Title: Consideration of major issues in ecosystem monitoring and management Abstract ... / Description: This paper outlines the requirements of an ecosystem approach to the management of Southern ... interactions and the manner in which their populations vary naturally. Large-scale interactions are catered for ... ). Smaller-scale interactions centre around three main categories: the availability of krill, variation in ... accordance with the provisions of this Convention and with the following principles of conservation: (a ... ) prevention of decrease in the size of any harvested population to levels below those which ensure its ... - ation of depleted populations to the levels defi ned in subparagraph (a) above; and (c) prevention of ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Autor(es): Everson, I
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... Paper Title: Krill biomass in Area 48 and Area 58: recalculations of FIBEX data Abstract ... / Description: FIBEX acoustic and length frequency data held in the BIOMASS database were used to provide ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ... de sonido de 120 kHz. 1. INTRODUCTION In 1991 the Commission for the Conservation of Antarctic ... held in the BIOMASS database were used to provide estimates of mean density and biomass for the ... ) Relationship The following TS/length relationships were used in the calculation of mean weight density (gm-2 ... in keeping with the original FIBEX approach (Anon., 1986). 2.5 Calculation of Biomass The mean ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Autor(es): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
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Assessments of by-catch in trawl fisheries at Heard and McDonald Islands
(Statistical Division 58.5.2) to significantly affect, in the long term, spawning biomass of three taxa caught ... biomass estimates from surveys in the region from 1990 to 1993 and a limited amount of biological data ... commercial operations and the effectiveness of by-catch provisions (the 5% rule) set by CCAMLR in 1996 to ... by-catch during commercial activities in 1996/97 was approximately 5%, 58% and 11% of the respective ... , causing a triggering of the 5% rule in Conservation Measures 109/XV and 11O/XV. Most instances occurred ... (Statistical Division 58.5.2) to significantly affect, in the long term, spawning biomass of three taxa caught ... biomass estimates from surveys in the region from 1990 to 1993 and a limited amount of biological data ... during commercial operations and the effectiveness of by-catch provisions (the 5% rule) set by CCAMLR in ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Autor(es): Constable, A.J., R. Williams and W.K. de la Mare
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Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica
examine a potential impact of bottom trawling on benthic communities in this region. The benthos was ... examined in trawls at 14 of the 22 random stations providing representative samples from different areas in ... most abundant taxa in terms of biomass. The wet-weighed ratio of benthos to finfish in the codend was ... demonstrate that the biomass of benthos that could be disturbed by commercial bottom trawling could be high in ... Australia in the 1990/91 season. The data collected are used to examine a potential impact of bottom ... trawling on benthic communities in this region. The benthos was examined in trawls at 14 of the 22 random ... sponges and ascidians. Holothurians and crinoids were the next most abundant taxa in terms of biomass ... . The wet-weighed ratio of benthos to finfish in the codend was greater than 1 at 12 out of the 14 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Autor(es): Constable, A.J.