Resultados de la búsqueda
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ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN SUBAREA 88.2 SSRU E FOR THE YEARS 2002/03 TO 2008/09
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model resulted in a higher estimate of initial biomass than the same model for 2006, but the estimated ... initial biomass was very imprecise. The selected trips data set resulted in a more precise estimate of ... initial biomass, although there was some conflict in the likelihoods of the tag recapture observations ...
Meeting Document : WG-FSA-09/41 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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A SIMULATION MODEL FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES
habitats. Noting the paucity of data on the ecology of these habitats, this paper provides a practical ... paper develops a simulation model for this task, representing key properties of the benthic system such ... ecosystems’ in order to maintain the ecological structure and function of, particularly, deep sea benthic ... requirement can be translated into a simple operational objective: Maintain the quality of habitats above the ...
Meeting Document : WG-SAM-09/21 : Autor(es): A.J. Constable (Australia)
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Feedback management through effort regulation
Abstract: The interim distribution of the trigger level in the fishery for Antarctic krill (CM 51 ... -01) will be revised in 2016. The trigger level is not related to the status of the krill stock and ... the predators that depend on it. Progressing the development of an operational FBM system in ... proposals tabled to CCAMLR, all of which require refinements. In particular, clarity about the data required ...
Meeting Document : SC-CAMLR-XXXV/BG/29 Rev. 1 : Autor(es): Delegation of Norway
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Report on fish by-catch during research fishing activities in Division 58.4.4b between 2008 and 2018
Abstract: We report on objective 3 “Investigate population structure of bycatch species and ... inform bycatch mitigation measures” of the ongoing research plan on Patagonian toothfish (Dissostichus ... bycatch patterns, spatial distribution and biological parameters of the main bycatch species. Macrourus ... bycatch on longlines. Results from both captain declaration and observer reports showed strong effects of ...
Meeting Document : WG-FSA-2019/53 : Autor(es): C. Péron, C. Chazeau, N. Gasco and F. Massiot-Granier
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A draft MPA Report for the East Antarctica Planning Domain
guidelines adopted by SC-CAMLR in 2012. This report provides a synthesis of the scientific information ... ) description of the planning domain, (2) identification of MPA locations in the planning domain, (3) four ... highlighted areas for inclusion in EARSMPA, (4) historical activities, (5) assessment of the MPA(s) and the ... effects of activities, (6) assessment and management of threats, (7) limits on activities permitted in the ...
Meeting Document : WG-EMM-14/48 : Autor(es): A. Constable (Australia), P. Koubbi (France), J. Melbourne-Thomas, M. Sumner, S. Jacob and M. Guest (Australia)
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Citizen science for large-scale data extraction from a citizen science network
Abstract: Cameras allow for non-invasive measurement of many breeding and behavioural parameters ... that permit, for the first time, large scale, simultaneous monitoring of multiple colonies. Citizen ... recognition becomes available. Given advanced stages of camera deployments and analyses described, using ... of penguins is now possible. In particular, if experimental fisheries closures or experimental ...
Meeting Document : WG-EMM-15/31 : Autor(es): T. Hart, C. Black (United Kingdom), L. Emmerson (Australia), J. Hinke (USA) and C. Southwell (Australia)
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Chinstrap penguins alter foraging and diving behaviour in response to krill size
changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... have fluctuated in recent years. We therefore examined the diet of chinstrap penguins at Livingston ... daytime. The average annual size of krill was negatively correlated to the number of penguins foraging on ...
Meeting Document : WG-EMM-07/11 : Autor(es): A.K. Miller and W.Z. Trivelpiece (USA)
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Report on seabird by-catch outside the CCAMLR Convention Area recorded in the South African fisheries
Abstract: Given Resolution 22/XXV, paragraph 3 concerning the mortality of Convention Area ... Seabirds to the north of the Convention Area and the request by IMAF, SC-CAMLR XXVII/15 (Para 4.3) to ... report these, this document provides an overview of the South African fishing sectors most likely to ... impact on these seabirds. A summary is provided of the recorded number of mortalities for each fishery ...
Meeting Document : WG-IMAF-11/11 : Autor(es): C. Heineken and P. Mullins (South Africa)
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Krill stock evaluation with data from commercial fishing vessels
. The use of such vessels as platforms for survey transects under scientific supervision has already ... been demonstrated. Here we show that acoustic data of good quality can be collected by observers on ... ‘Saga Sea’ in 2011 as example. A one-month subset of the acoustic data from February/March was processed ... within a time-frame of a week and linked to krill length data from the same period. The data from the ...
Meeting Document : WG-EMM-12/63 : Autor(es): G. Skaret (Norway), J. Moir Clark (United Kingdom), O.R. Godø, R.J. Korneliussen, T. Knutsen, B.A. Krafft and S.A. Iversen
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Research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.3a in 2014/15
the latest CCAMLR C2 and observer data toward the development of research plan for the 2014/15 ... exploratory fishery of Dissostichus eleginoides in Division 58.4.3a. The stock size for block 5843a_1 was ... experiment and appropriate reference area (north of Subarea 48.4) for the CPUE method recommended at the last ... CPUE method. Predicted number of tag recaptures from the estimated stock sizes using the Petersen ...
Meeting Document : WG-SAM-14/04 : Autor(es): Delegation of Japan