Search results
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ... frequency distribution (Elephant Island) could be used to estimate biomass from other areas where the length ... models of krill biomass, at120 kHz frequency that can be used to augment research acoustic surveys if ...
Meeting Document : SG-ASAM-12/04 : Author(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ... frequency distribution (Elephant Island) could be used to estimate biomass from other areas where the length ... models of krill biomass, at 120 kHz frequency that can be used to augment research acoustic surveys if ...
Meeting Document : SG-ASAM-15/03 : Author(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Stock connectivity of Antarctic toothfish
be sequenced by Diversity Arrays to identify variable nucleotide SNPs sites. The analysis of SNPs ... differences could be attributed to the longitude the samples were collected from, these differences were not ... and long-distance fish movement, even at only low levels, would be sufficient to contribute to the ...
Meeting Document : WG-FSA-2019/P01 : Author(s): D. Maschette, S. Wotherspoon, A. Polanowski, B. Deagle, D. Welsford and P. Ziegler
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Plan of research program of the Ukraine in Subarea 48.2 in 2016 (second season)
will be carried out within three years. Implementation of the tagging program in the long-term ... certain number of the following bottom long line surveys are proposed to be conducted during March-April ... 2016. Investigated area will be demarcated on two blocks- Northern and Southern. During the season of ...
Meeting Document : WG-FSA-15/45 : Author(s): Delegation of Ukraine
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Developing robust biomass estimates and advice on catch limits in research blocks
Scientific Committee requested that the changes to the methods be reviewed, that scientific rational for the ... different biomass estimates be provided. In this paper, we develop a modified CPUE by seabed area method ... density estimates from Shelf/Slope and North habitat types from the Ross Sea can be used to estimate a ...
Meeting Document : WG-SAM-17/37 : Author(s): S.J. Parker, S. Mormede, A. Dunn, S.M. Hanchet and C. Marsh
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e-cc-xxvii-a5.pdf
... the System of Inspection (CCAMLR-XXVI, paragraphs 13.79 to 13.82). Members discussed the proposed changes ... January 2008. 4.3 The Secretariat reported that the CDS was being implemented by all Contracting ... of fish to be tagged should be recorded in the observer’s report whenever it occurs. In the absence ... of such information the percentage of fish in good condition should be deemed adequate. 174 ... for exploratory fisheries would not be considered if they were incomplete (CCAMLR-XXIV, paragraph 6.7 ... between that information which was mandatory to provide and that which was to be provided as far as was
application/pdf attached to:SCIC-08
Meeting Report : SCIC-08
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DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA
and fine-scale spatial resolution and consider scenarios where abundance can be present over the ... developments towards plausible operating model constructs that may be used for evaluating assessment biases or ... explicit manner. Models can be parameterised by both population processes (i.e., ageing, recruitment, and ... -mature appeared to be sensible, with a clear pattern that the proportions mature were a function of ...
Meeting Document : WG-SAM-09/18 : Author(s): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)
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Estimation and correction of migration-related bias in the tag-based stock assessment of Patagonian toothfish in Division 58.5.2
biomass, and stock status being over-estimated. We then estimated migration of rates of Kerguelen Plateau ... biomass, and stock status being over-estimated. We then estimated migration of rates of Kerguelen Plateau ...
Meeting Document : WG-SAM-17/11 : Author(s): P. Burch, P. Ziegler, D. Welsford and C. Péron
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Progress towards an assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 882C–H for the years 2002/03 to 2017/18 using a two-area model
blocks, a model may be developed for management advice. We present an update on these two-area stock ... the model should only be used as indicative due to issues including poor fit to the age data in the ... the analyses be developed to incorporate the spatial distribution of the tagged fish and subsequent ... have lower effective tag survival and detection be significantly improved to ensure the best use of the ...
Meeting Document : WG-FSA-18/37 : Author(s): S. Mormede and S. Parker
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
BeJIHqHHOH, 3aBHC5IIIleH KaK OT XapaKTepHCTHK nOBe,l(eHH5I H pacnpe,l(eJIeHH5I 06JIaBJIHBaeMOrO 06beKTa TaK ... Ha npHMepe TpaJIa AH3eKCa-KH,l(,l(a nOKa3aJI, qTO nOCJIe,l(HHe Heu,eJIeco06pa3HO HCnOJIb30Ba ... trawl being used. This paper will not examine matters such as selecting the optimal set of trawl ... . In addition, trawl catchability is generally accepted as being a constant value equal to 1.0. We ... high relative error. A standard method for conducting krill trawl census surveys needs to be developed ... total amount of krill entering the trawl should be carried out when selecting trawl construction. File ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Author(s): Kasatkina, S.M.