Resultados de la búsqueda
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Incidental mortality of seabirds around Kerguelen Islands (Division 58.5.1) and effectiveness of mitigation measures: 1993/94 to 1995/96 cruises
campaigns around Kerguelen islands (division 58.5.1). Mean by-catch rate is 0.81 birds / 1.000 hooks. The ... diving faculty. The different ways to minimize seabird by-catch proposed by CCAMLR are tested and their ...
Meeting Document : WG-FSA-96/10 : Autor(es): Capdeville, D.
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Reporting procedures for the continuous fishing method
Abstract: Commercial catch rates are important information for scientific evaluation of the krill ... standardized on all vessels conducting continuous trawling, ensures that the catch is estimated and recorded at ...
Meeting Document : WG-EMM-2019/06 : Autor(es): F. Grebstad
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A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in SSRU 88.2E for the 2004/05 season
catch removals were modelled as a single fishery. Model fits to the data were adequate, with the tag ... -release and recapture data providing the most information on stock size, but with the catch-at-age data ... . Moreover, the mean catch that could actually be taken under this scenario was 450 t. Hence, two revised ...
Meeting Document : WG-FSA-05/31 : Autor(es): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)
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Fisheries in the Southern Ocean – an ecosystem approach. Trans. Roy. Soc. Lond. (in press)
place to protect by – catch species, such as rattails (Macrouridae) and skates and rays (Rajidae). Two ... major problems still exist in fisheries in the Southern Ocean: the by – catch of birds in longline ... , the by – catch of birds and high IUU catches undermine the credibility of CCAMLR to safeguard the ...
Meeting Document : SC-CAMLR-XXIV/P01 : Autor(es): Kock, K.-H., K. Reid, J. Croxall and S. Nicol
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An updated descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2004/05
Measure, New Zealand vessels have tagged between 1.0 and 2.77 toothfish per tonne of catch. Tagging rates ... by area over the past three years have been in the same proportion as the catch by area. However ... 2001, but is still smaller than the mean size of fish taken in the commercial catch. Larger toothfish ...
Meeting Document : WG-FSA-05/34 : Autor(es): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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Seabird mortality in the Japanese tuna longline fishery around Australia, 1988–1995
observed hauled aboard the vessels. The observed seabird catch rate varies annually, seasonally and ... southern Australia. Uncertainties in the observed catch rates prevent confident assessment of trends, but ... seabird catch rates do not appear to be showing a sustained decrease. The process of the incidental ...
Meeting Document : WG-FSA-98/31 : Autor(es): N. Brothers, R. Gales and T. Reid (Australia)
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FIELD IDENTIFICATION GUIDE TO HEARD ISLAND AND MCDONALD ISLAND (HIMI) BENTHIC INVERTEBRATES
by-catch when operating in the HIMI region. Based on available data, this publication will include ... region thus far. This guide will enable observers to gather invertebrate by-catch data at higher ... benthic by-catch data. Author(s): T. Hibberd and K. Moore (Australia) Title: FIELD IDENTIFICATION GUIDE ...
Meeting Document : WG-FSA-08/59 : Autor(es): T. Hibberd and K. Moore (Australia)
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Decadal trends in abundance, size and condition of Antarctic toothfish in McMurdo Sound, Antarctica, 1972–2011
Dissostichus mawsoni in McMurdo Sound, Antarctica, 1972–2011. Data on total length, condition and catch per ... measured, tagged and released. Contrary to expectation, the length frequency of the McMurdo Sound catch was ... dominated by fish in the upper two-thirds of the overall distribution exhibited in the industrial catch for ...
Meeting Document : WG-FSA-12/P04 : Autor(es): D.G Ainley, N. Nur, J.T Eastman, G. Ballard, C.L Parkinson, C.W Evans and A.L. DeVries
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Influence of the quality and quantity of data from a multi-year tagging program on bias and precision of biomass estimates from an integrated stock assessment – update
of the tagging program, the type of auxiliary data used in the assessment, and the catch history ... over 60-70%. Biomass estimates were largely unaffected by the type of catch history. Therefore ... as long as estimates of the catch history are available. Author(s): P.E. Ziegler (Australia) Title ...
Meeting Document : WG-FSA-12/18 : Autor(es): P.E. Ziegler (Australia)
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Revised assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005–2014
division: two catch at length models including (ELAN_len model) or excluding (ELAN_tag model) the data from ... fish tagged in 2012, and a catch at age model including the data with a single age length key applied ... to all years (ELAN_age model). Another run was a catch at length model as ELAN_len model except using ...
Meeting Document : WG-FSA-15/22 : Autor(es): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)