Resultados de la búsqueda
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Analisis de los censos de Arctocephalus gazella efectuados en el sitio de especial interes cientifico no. 32, Isla Livingston, Antarctica
with the purpose to clarify its population size, between the Antarctic seasons 1965-66 and 1991-92. The ... results show that the population size of this species, in the study area increased during 26 years, form ...
Meeting Document : WG-CEMP-93/24 : Autor(es): A. Aquayo L. and D. Torres N. (Chile)
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Fish by-catch in the krill fishery: 2018 update
the commercial krill fishery catch data. As in previous years there was a high degree of overlap in ... the most frequently reported taxa in the C1 data and SISO data, with Lepidonothen larseni the most ...
Meeting Document : WG-FSA-18/10 : Autor(es): CCAMLR Secretariat
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Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal
changed throughout the year with the highest values occurring during the summer which has implications for ... including one individual in two separate years. Whilst the sample size is small the results represent an ... 22 and 31% of the time with maximum of 74 hours and a median of between 9 and 11 hours. The longest ... behaviour within, areas important to breeding populations of birds and other seals, coupled with the ...
Meeting Document : WG-EMM-18/P09 : Autor(es): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada
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Report of ACAP Working Group on Status and Trends Agreement on the Conservation of Albatrosses and Petrels – Status and Trends Working Group
, Paragraph 7.2). 2. To progress this review, ACAP’s Advisory Committee established a Working Group with the ... gaps. 3. The data for this review was sought from Parties and Signatories to ACAP that are Breeding ...
Meeting Document : WG-FSA-06/40
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AMLR Hydroacoustic Survey System Description of Methods, A Case Study
, towed hydroacoustic system; 2) real-time analysis of data; and 3) using a structured database which ... with environmental or other biological data. Author(s): M.C. Macaulay (USA) Title: AMLR Hydroacoustic ...
Meeting Document : WG-KRILL-89/10 : Autor(es): M.C. Macaulay (USA)
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Proposal of the Russian Federation to open Subarea 88.3 for exploratory fishery of Dissostichus spp.
“Chio Maru 3”. Totally, during the work period 44 longlines were set at a depth from 625 to 2336 m ... biological parameters associated with productivity (SC-CCAMLR-XXX/5, par. 2.26-2.29). Toothfish`s biomass was ...
Meeting Document : WG-FSA-13/12 : Autor(es): Delegation of the Russian Federation
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Uncertainty in echosounder calibrations
, 0.3, and 0.1 dB with standard deviations of 0.0, 0.3, and 0.2 dB, respectively. The operative measure ... (derived by peak intensities), differed from the theoretical values by-0.2, O.4, and 0.2 dB with standard ... optimal standard sphere, and a 0.3 ms pulse length, is estimated to be accurate to to.3 dB, and precise to ... are consistent with predictions (Blue, 1984), and prior experimental results (Demer and Hewitt, 1993 ...
Meeting Document : WG-EMM-96/40 : Autor(es): Soule, M.A., Demer, D.A.
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Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997
sighting network to assess with more complete data the impact that marine debris is causing on the marine ... vessels operating in CCAMLR's regulated areas of the Southern Ocean, with further instruction of ... scientific observers in relation to discarded debris; (3) directed education to captains and tripulations of ... fishing vessels with the aid of an informative booklet; and (4) the ratification and implementation of ...
Meeting Document : SC-CAMLR-XVI/BG/33 : Autor(es): Delegation of Chile
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Antarctic icefishes (Channichthyidae) – a unique family of fishes – a review
haemoglobin. With the exception of one species, icefish live only in the cold – stable and oxygen – rich ... not attain maturity before they are 5 – 8 years old. Spawning period of most icefish species is autumn ... the 1970’s and 1980’s with Champsocephalus gunnari as the main target species. Most stocks of this ...
Meeting Document : WG-FSA-04/10 : Autor(es): K.-H. Kock (Germany)
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Preliminary assessment of mackerel icefish, Champsocephalus gunnari, on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003
approximately 20% of the 2002 estimate. This decline in abundance is consistent with the passage of the strong ... of un-assessed cohorts and provide for more stable catches between fishing years, while meeting the ... in recruitment, natural mortality and growth of these fish, combined with the need to maintain a ...
Meeting Document : WG-FSA-03/32 : Autor(es): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)