Résultats de la recherche
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Using carapace measurements to determine the sex of Antarctic krill (Euphausia superba)
allometric equations for calculating total length from carapace length, were derived from South Georgia krill ... have not been validated using locally sampled krill. This study reports on a three year study ... independently derives sex-specific regression models for krill collected in the South Shetlands. Allometric ... immature krill resulted in significant bias towards male krill and an overestimation of krill length. We ...
Meeting Document : WG-EMM-05/26 : Auteur(s): J.D. Lipsky, M.E. Goebel, C.S. Reiss and V. Loeb (USA)
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Trends of Antarctic fur seal population at SSSI No. 32, Livingston Island, South Shetlands, Antarctica
Abstract: We update in this paper the previously reported model for the Antarctic fur seal ... parameters to an environmental index (the Southern Ocean Oscillation Index- SOI). Two fur seal censuses were ... . From this, we estimated an overall increase of 17% in the total population, including in this figure a ... environmental phenomena if the population is under a monitoring programme, and may have an interesting effect on ...
Meeting Document : WG-EMM-99/16 : Auteur(s): R. Hucke-Gaete, D. Torres, A. Aguayo, J. Acevedo and V. Vallejos (Chile)
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Statistical problems in krill stock hydroacoustic assessments
: Two primary issues are at question for hydroacoustic assessments of krill. The first is the methods ... -strength measurements. In the case of statistical methods, there are no clear guidelines for deciding what ... needs for improvements in sampling design and tests for systematic trends in survey data collected from ... to be not the absolute amount of biomass present in an area, but rather how it is distributed. The ... patch dominated year) it can quickly obtain sufficient food for its needs. If, however, it must spend a ... its own requirements to have sufficient for its offspring too. Figure 1 shows an example of this with ... biomass present in an area, but rather how it is distributed. The issue of patchy years vs more even ... HYDROACOUSTIC ASSESSMENTS M.C. Macaulay Abstract Two primary issues are at question for hydroacoustic ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 301–309 : Auteur(s): Macaulay, M.C.
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Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3
differences in M between fishing sites. On the other hand, when comparing various mean values of M for the ... curve hooks No. 14 and straight hooks No. 22. The general mean value of M calculated for the 44 analysed ... , Australia. BEVERTON, R.J.H. and S.J. HOLT, 1956. A review of methods for estimating mortality rates in ... sites. On the other hand, when comparing various mean values of M for the different cases, it was ... straight hooks No. 22. The general mean value of M calculated for the 44 analysed situations was 0.14 ... , captura total y una submuestra de 30 ejemplares por lance, de los cuales se obtuvo la composicion por ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Auteur(s): Moreno, C.A. and P.S. Rubilar
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WG-DCH-84
-84/20 Review of the spatial and temporal distribution of the GDR fishery in the Atlantic sector of ... Doc Number Title WG-DCH-84/01 Points and questions about measuring effort for krill fishing that we ... . Gulland (FAO) WG-DCH-84/05 Some notes on the catch and effort statistics needed for stock assessment of ... proposals for basic information. Annex 8 to the Report of the 1983 Meeting of the Scientific Committee of ...
Meeting
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Anthropogenic feather soiling, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1999/2000
. Quantities of fishing gear remained within the levels of previous years for all other species, except black ... associated with seabirds at Bird Island, South Georgia. In this, the seventh year of standardised recording ... , an unprecedented quantity of hooks (both with and without long-line attached) and monofilament long ... which were plastics) showed 75% and 93% increases from the previous maxima for wandering albatross and ...
Meeting Document : SC-CAMLR-XIX/BG/04 : Auteur(s): Delegation of the United Kingdom
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Marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1996/97
records for wandering albatrosses were halved compared to last year. Nevertheless evidence of continued ... Abstract: In the fourth year of standardised recording of man-made debris associated with ... seabirds at Bird Island, South Georgia, ingested and regurgitated plastic items were reported for wandering ... found next to nests, six in squid pellets and one internally lodged in an adult) and adult regurgitates ...
Meeting Document : SC-CAMLR-XVI/BG/05 : Auteur(s): Delegation of the United Kingdom
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European Union – Measurement of capacity in CCAMLR exploratory fisheries in Subareas 88.1 and 88.2
Abstract: The longline fishery for toothfish in the Ross Sea currently operates as an Olympic ... overall catch limits have remained relatively stable and as a consequence the fishing opportunities for ... are impacted by management measures. There is therefore a requirement for the routine production of ... fishery. The number of vessels operating in the fishery has progressively increased in recent years yet ...
Meeting Document : WG-SAM-14/19 : Auteur(s): Delegation of the European Union
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Beach litter accumulation at sub-Antarctic Marion Island – 1998/99
accunmulation for the year May 1998- April 1999. The amount of debris found in both annual and monthly ... dominated for the previous two years. Items originating from South America (Argentina in particular) were ... Abstract: As part of an ongoing study on Subantarctic Marion Island, we report on beach litter ...
Meeting Document : CCAMLR-XVIII/BG/22 : Auteur(s): Delegation of South Africa
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Réglementation de la pêcherie de krill dans la zone de la CCAMLR
that the Commission consider an increase in observer coverage that would be implemented in stages over ... : Content Approved Delegation responsibility for releasing documents: Chile ... the next 4 years. Author(s): Delegation of Chile Title: Regulation of the krill fishery within the ...
Meeting Document : CCAMLR-XXXV/26 : Auteur(s): Delegación de Chile