Resultados de la búsqueda
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Modelling crustacean fisheries: effects of parasites on management strategies
Abstract: The reproductive performance of commercially important crustaceans may be considerably ... ;open" or "closed" depending on the behavior of planktonic larvae, the duration of these ... planktonic stages, and the flush rate of the environment of the adult host. Both hosts and parasites may have ... open or closed larval recruitment. We developed mathematical models to investigate the impact of ...
Meeting Document : WS-CRAB-93/09 : Autor(es): A.M. Kuris and K.D. Lafferty (USA)
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Deaths of Adélie penguins at Mawson November–December 2001 investigated
near Mawson between 23 November and 4 December, 2001. It is concluded the most likely cause of death ... death of the penguins suggested initially that disease may have been implicated and so investigations ... were treated accordingly. The sampling protocols developed by CEMP were used in these investigations ... Abstract: Over 120 adult Adélie penguins were found dead in unusual circumstances on Welch Island ...
Meeting Document : WG-EMM-02/42 : Autor(es): K. Kerry and L. Irvine (Australia)
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A versatile approach to minimise damage or loss of longline gear due to sea-ice
quickly varying sea ice cover, there is an increased risk that any parts of longline gear floating on the ... informs FSA about the very successful experience gained by the Alfred Wegener Institute in using pop-up ... buoy recovery systems for short-term deployment of scientific instruments on the sea floor and invites ... FSA to: (1) to (re-)discuss the issue of damage or loss of longline gear due to sea ice, including the ...
Meeting Document : WG-FSA-2019/04 : Autor(es): S. Hain, T. Brey and K. Teschke
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric parameter?
functions are able to correctly determine the sex of birds with greater than 80% success the difference ... . Combining all data for both sexes is considered as a procedure for avoiding the necessity of sex ... determination, but uncertainty in sex ratios can lead to considerable Type I and Type II errors. Lack of ... knowledge about the sex ratio between years makes combining the data a very doubtful procedure and use of a ...
Meeting Document : WG-CEMP-92/11 : Autor(es): D.J. Agnew (Secretariat)
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Vast assembly of vocal marine mammals from diverse species on fish spawning ground
echoes used in the assessment of prey abundance and distribution. Periodically, only the receiver array ... methodology offer coverage of 10s of km and may thus inform about variability issues now causing troubles in ... the assessment of krill using conventional acoustic methods. Author(s): D. Wang, H. Garcia, W ... information on prey distribution and abundance as well as distribution and activity of their top predators ...
Meeting Document : WG-EMM-16/P01 : Autor(es): D. Wang, H. Garcia, W. Huang, D.D. Tran, A.D. Jain, D.H. Yi, Z. Gong, J.M. Jech, O.R. Godø, N.C. Makris and P. Ratilal
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On development of centralised preparation and accreditation scheme for scientific observers and CCAMLR Member countries
, cruise report etc.) produced during the inter-session SISO work are presented in the paper. Position of ... the Russian Federation on development of centralized preparation and accreditation scheme for ... scientific observers and CCAMLR member countries is amplified here. Author(s): Delegation of the Russian ... Abstract: Suggestion and comments on changes in basic documents for scientific observers (logbook ...
Meeting Document : SC-CAMLR-XXXIII/BG/18 : Autor(es): Delegation of the Russian Federation
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Drawing on international experience to improve performance of CCAMLR tagging programs
Abstract: Mark-recapture methodologies are commonly used to inform the management of fisheries ... presented. The paper focusses on the design and implementation of toothfish tagging programmes, but many of ... . In addition to answering targeted research questions, tagging programmes are typically used to ... describe movement patterns relative to stock unit identification or to support spatial disaggregation of ...
Meeting Document : WG-SAM-12/26 : Autor(es): S. Parker and S. Mormede (New Zealand)
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Collection, processing and potential use of sonar data from krill fishing vessels
vessels. The purpose of this paper is to stimulate discussion on the utility of sonars to describe krill ... within a survey area and to consider the metrics (descriptors) we outline in the paper. We hope the ... outcome of our discussions will facilitate the use of sonar data collected from a variety of vessels and ... Abstract: Omnidirectional sonars (herein sonars) are capable of providing an alternative view of ...
Meeting Document : SG-ASAM-14/01 : Autor(es): G. Skaret (Norway) and M.J. Cox (Australia)
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Lead-radium dating provides a framework for coordinating age estimation of Patagonian toothfish (Dissostichus eleginoides) between fishing areas
valid ages for juvenile to older adult groups, which were consistent with the counting of otolith growth ... revealed minor biases between the radiometric age and interpretation of growth zone counting for regional ... estimates range from approximately 20 to more than 50 years. In this study, lead-radium dating provided ... zones in transverse otolith sections, and longevity estimates exceeding 30 years. Lead-radium dating ...
Meeting Document : WG-FSA-11/P01 : Autor(es): A.H. Andrews, J.R. Ashford, C.M. Brooks, K. Krusic-Golub, G. Duhamel, M. Belchier, C.C. Lundstrom and G.M. Cailliet
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plotImpact – software for producing image plots of spatially referenced impact assessments
Secretariat or CCAMLR Working Groups in the production of integrated bottom fishing impact assessments ... , including routine update of the circumpolar impact assessment originally described in SC-CAMLR-XXIX/4 ... Abstract: Software is presented for the automated production of standardised image plots of ... spatially referenced bottom fishing impact assessments. This software is submitted to WG-FSA to assist the ...
Meeting Document : WG-FSA-11/51 Rev. 1 : Autor(es): D.N. Webber (New Zealand) and J.P. McKinlay (Australia)