Resultados de la búsqueda
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The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3
Paper Title: The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3 Abstract ... / Description: Fine-scale data supplied to CCAMLR for 1987/88 showed that the catches of P atagonotothen ... WG-FSA-90/12 THE FISHERY FOR PATAGONOTOTHEN BREVICAUDA ... the past ten years there has been a fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea ... the proportion of P.b. guntheri in the total reported for the two species includes an average of ... minimum mesh size 277 permitted for C. gunnari is 80 mm which, providing the provisions of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 275–283 : Autor(es): Everson, I. and C. Mitchell
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Scientific justification for a marine protected area designation around the Balleny Islands to protect ecosystem structure and function in the Ross Sea region, Antarctica: progress report
Abstract: In 2000, the New Zealand delegation to CCAMLR proposed the designation of an Antarctic ... Article 3 of Annex V to the Protocol on Environmental Protection to the Antarctic Treaty. This paper’s ... focus is on the CCAMLR values. A review of existing information reveals that the Balleny Islands are ... uniquely situated to provide essential breeding and foraging habitat for large populations of top predator ...
Meeting Document : SC-CAMLR-XXIV/BG/25 : Autor(es): Delegation of New Zealand
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Fishery Report 2013: Exploratory fishery for Dissostichus spp. in Subarea 48.6
Description / Abstract: Fishery Report 2013: Exploratory fishery for Dissostichus spp. in Subarea ... , biomass estimation phase and assessment development phase, with a set of decisions and review for the ... and maturity stage, as well as collection of otoliths for age determination of the target and most ... of D. mawsoni and D. eleginoides caught in this fishery are presented for all years in which the ... -frequency distributions are only presented for those years/SSRUs in which the number of fish measured was ...
Document : Site Section: Publications
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2006/07 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... ), using revised catch, catch-at-age, and tag-recapture data for the 2007 season. The updated reference ... lower recapture rate by non-New Zealand vessels, particularly in the early years. The reason for this is ... data for all vessels in all years were used, then the estimated initial biomass was higher (B0=110 130 ...
Meeting Document : WG-FSA-07/37 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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Key considerations for planning a large-scale krill survey
useful basis for designing future surveys, subject to a review which should be the first task in ... Abstract: Article II of the Convention requires the Commission to maintain harvested populations ... management (FBM) approaches for the krill stock in subareas 48.1 to 48.4. These approaches include some which ... ) might also play a role in the future management of the krill fishery. Such surveys provide an indication ...
Meeting Document : WG-EMM-15/27 : Autor(es): S. Hill, J. Watkins (United Kingdom), O.R. Godø (Norway), S. Kawaguchi (Australia), D. Kinzey, C. Reiss (USA), V. Siegel (Germany), P. Trathan (United Kingdom) and G. Watters (USA)
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A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey
in the 2019/20 season and 406 t in the 2020/21 season, respectively, satisfied the CCAMLR decision ... provides a preliminary assessment for mackerel icefish (Champsocephalus gunnari) population structure ... , abundance and yield in Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods (CMIX and ... rules. Author(s): D. Maschette, G. Nowara and D. Welsford Title: A preliminary assessment for mackerel ...
Meeting Document : WG-FSA-2019/02 : Autor(es): D. Maschette, G. Nowara and D. Welsford
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Revised input parameters and implications for the Antarctic toothfish (Dissostichus mawsoni) stock assessment in Subareas 88.1 and 88.2
Antarctic toothfish stock assessment for the Ross Sea fishery. In particular we review catch history, length ... were updated, as are some modelling parameters, and methods for calculating age- and length-frequencies ... -weight relationships, catch-at-length and catch-at age. In addition, we report some preliminary model ... consistent patterns in length frequencies over the duration of the fishery. Including terms for nation ...
Meeting Document : WG-SAM-07/6 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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Fishery Report 2014: Exploratory fishery for Dissostichus spp. in Division 58.4.1
Description / Abstract: Fishery Report 2014: Exploratory fishery for Dissostichus spp. in ... to 30 November 2014). Fishery Report 2014: Exploratory fishery for Dissostichus spp. in ... Ocean sector of the Convention Area remains an issue for the Commission. Estimates of IUU fishing in ... a set of decisions and review for the progression between stages. 9. In order to obtain the data ... representative samples of length, weight, sex and maturity stage, as well as collection of otoliths for age ...
Document : Site Section: Publications
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Assessing data requirements for tag-based estimates of local biomass in data-poor and exploratory fisheries
achieving the same level of accuracy to 80%, a minimum of 20 tagged fish recaptures were required when ... Abstract: This study used an operating model to simulate a Dissostichus eleginoides population in ... will have a high risk of over-estimating biomass and that for a given number of tagged fish available a ... minimum numbers of recaptures are required to ensure a low likelihood of biomass overestimation. For ...
Meeting Document : WG-SAM-17/13 : Autor(es): L. Robinson, P. Burch and K. Reid
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Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
number of concentrations and analytical justification for search data Abstract / Description: In this ... 1980s. These examples highlight the need for a navigational log as well as a fishing log in order to ... make accurate inferences. In the appendix, a method for correcting for the bias in the detection of ... ). (Figure A6 of Appendix 5 of the Krill CPUE Working Group Report contains an error for the curve in which ... (1989) concentrations are presumed to persist for the entire fishing period of14 to 30 days.) 290 ... simulation study of krill fishing by an individual Japanese trawler. Scientific Committee for the ... 18.9 hrs 693.6 (4-8), 61.2 (8-9) 1 290.4 50" 40' 20" o' 20' 40' 10' 30' 30' 10" 50" 60" 60 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Autor(es): Mangel, M.