Search results
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The Antarctic toothfish Dissostichus mawsoni (Nototeniidae) nutrition in the Ross Sea during the fishing season 2011/12
Abstract: During fishing trip of F/V «Jung Woo 3» (Republic of Korea) in the Ross Sea over 29 ... species were found in the stomachs of the Antarctic toothfish. The main forage organisms for the toothfish ... dominant in the toothfish nutrition at SSRU “J” at the shelf in the vicinity of the Ross Ice Shelf. In that ... 75 cm. Average size of victims was varied but only average size of the ice squid was constant. in ...
Meeting Document : WG-FSA-12/06 : Author(s): Yu.V. Korzun and N.A. Misar (Ukraine)
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
in effect (Conservation Measure 73/XVII; see CCAMLR, 1999). Six scientific trawl surveys have been ... for most hauls during the 1985 survey were very small. Subsequent to this, mean standardised yield per ... all surveys, a comparison of length compositions would not be meaningful and is not presented here ... of recovery in the South Orkney Islands, although stock sizes are now likely to fluctuate around a mean ... Paper Title: Changes in biomass of eight species of finfish around the South Orkney Islands ... Germany in 1985, Spain in 1991 and the USA in 1999. From these surveys, estimates of total stock biomass ... were computed for the eight species of finfish which were most abundant in catches. Biomass levels and ... /90. The biomass of several species of finfish has been monitored through scientific bottom trawl ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Author(s): Jones, C.D., K.-H. Kock and E. Balguerías
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What’s the catch? Profiling the risks and costs associated with marine protected areas and displaced fishing in the Scotia Sea
evaluated two MPA scenarios and associated displacements of the Antarctic krill fishery in the Scotia Sea by ... suggest ways to improve protection of seals and penguins in the Scotia Sea. Both scenarios could increase ... of fishing effort from closed areas, which may result in new and unexpected consequences for both ... fisheries and the ecosystem. Understanding such outcomes is critical in the Southern Ocean, where MPAs are ...
Meeting Document : WS-SM-18/P03 : Author(s): E.S. Klein and G.M. Watters
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Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87
experiment is not available. Hauls of three hours or more in the second experiment resulted in the mean ... total catches of 0.6 to 1.0 tonnes. Mean catch rate for C. gunnari was 0.75 tonnes/hf. In the Spanish ... , several hauls over 1.5 tonnes per tow were also noted (Table 1.1 of the Appendix). Mean catch rates ... selectivity experiments resemble those of the commercial fishery. The mean CPUE range observed from 1984 ... Paper Title: Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR ... in 1978/79, 1981/82 and 1986/87 Abstract / Description: Trawl selectivity for several species of ... selectivity experiments in Statistical Area 48 in 1978/79, 1981/82 and 1986/87 seasons. These data comprise ... different characteristics of experimental codends, length frequency distribution of stocks sampled, catch ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Author(s): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias
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Preliminary results from the Argentine tagging program for the Patagonian toothfish in the south-western Atlantic
migration of Patagonian toothfish in order to increase biological knowledge on the species and improve ... Abstract: A Tagging Program for Patagonian toothfish in the longline Argentine fishery outside ... CCAMLR´s waters was implemented. It was designed to study specific characteristics of the movement and ... resource management in the South-Western Atlantic Ocean. The program started in 2004 and some 4900 juvenile ...
Meeting Document : WG-SAM-12/32 : Author(s): P.A. Martínez, J.A. Waessle and O.C. Wöhler (Argentina)
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Update on Patagonian toothfish (Dissostichus eleginoides) losses in the bottom longline fishery due to the depredation by killer whales and sperm whales off the Kerguelen and Crozet Islands
(Dissostichus eleginoides) fishery off Kerguelen and Crozet EZs are amongst the most important in the Southern ... Ocean. This paper presents the first results of depredation rates calculated on a yearly basis using the ... toothfish (Dissostichus eleginoides) losses in the bottom longline fishery due to the depredation by killer ... Abstract: Depredation caused by killer whales and sperm whales on the Patagonian toothfish ...
Meeting Document : WG-FSA-16/10 : Author(s): N. Gasco, P. Tixier, G. Duhamel and C. Guinet
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Establishing time-limited Special Areas for Scientific Study in newly exposed marine areas following ice shelf retreat or collapse in Subarea 48.1, Subarea 48.5 and Subarea 88.3 – Clarifications and options to further develop the 2015 proposal
Abstract: In 2015 the European Union proposed a draft Conservation Measure (CM) with the aim ... in accordance with Conservation Measure 24-01. This proposal was developed following a recommendation ... , a revised Conservation Measure will be developed and submitted to the Commission in 2016. Author ... In 2015 the European Union proposed a draft Conservation Measure (CM) with the aim of promoting ...
Meeting Document : WG-EMM-16/27 : Author(s): S. Grant and P. Trathan
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A simulation study of the method of deriving natural mortality rate using data for Champsocephalus gunnari in Subarea 48.3
npOMbICJIOBOH CMepTHOCTU (onpe,lleJIeHHbIM npu nOMOlQU VPA) U npOMbICJIOBbIM YCUJIUeM. CBo60,llHbIH 4JIeH in ... were to be studied by means of mathematical simulation. 2. METHODS FOR REFINING NATURAL MORTALITY ... rates for the oldest age group by fishing year are estimated by the tuning algorithm; (iv) mean ... ) and (v) can be accomplished by a number of methods. Mean weighted fishing mortality rates in particular, can ... Champsocephalus gunnari in Subarea 48.3 Abstract / Description: A method of determining the rate of natural ... described method is sound. When a mistake is made in the choice of natural mortality coefficient, the ... estimate of the intercept of the regression is other than zero. A bias in the intercept will be positive if ... Paper Title: A simulation study of the method of deriving natural mortality rate using data for ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 69–83 : Author(s): Gasyukov, P.S. and R.S. Dorovskikh
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The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical Divisions 58.4.2 and 58.4.3 from 1988 to 1990. Results of acoustic surveys
C 1977 r. IOrIillPO (Kepllb, CCCP) BbInOJIHSleT MOHHTopHHr 6HOJIOrHlIeCKHx H ~KOJIOrHlIeCKHX napaMeTpoB ... , BbInOJIHeHHbIX B 1988-1990 rr. BbIJIO YCTaHOBJIeHO, lITO OTMelleHHoe nOBbIweHHe 6HoMaccbI KPHJISI B aTOM ... in the surface layer of the area was 3.5±0.6x 103 tonnes, and mean density was 41 g/m2. In the eastern part ... of the area, krill was found in loose aggregations with a mean density of 34 g/r.n2. Dispersed aggregations ... Paper Title: The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical ... of krill resources in the central part of the Indian Ocean sector of the Antarctic (CCAMLR ... Statistical Divisions 58.4.2 and 58.4.3). Results of surveys conducted from 1988 to 1990 are discussed in the ... paper. It was found that the increase in krill biomass observed in the area in 1990 is linked with the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 163–173 : Author(s): Bibik, V.A. and V.N. Yakovlev
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A comparison of densities and length distribution of the Champsocephalus gunnari stock in Subarea 48.3 between years 1994 and 1995
Abstract: Mean densities and length structure of Champsocephalus gunnari obttained in the 1994 ... function to mean densities should be improved, but their differences at replicated sites fulfilled ... stability was found in the components of the variance of the mean density, thus allowing their application ... Mean densities and length structure of Champsocephalus gunnari obttained in the 1994 and 1995 ...
Meeting Document : WG-FSA-95/34 : Author(s): Marschoff, E., Calcagno, J., Gonzalez, B.