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Influence of data quality and quantity from a multiyear tagging program on an integrated fish stock assessment
, fishing, and data collection, this study investigated how the bias and precision of biomass estimates from ... , particularly the effects of the size of tagged fish compared with the size of fish in the catch (tag size ... -overlap), numbers of tagged fish, duration of the tagging program, using catch-at-length or catch-at-age ... better-quality tagging data. The results showed that even when tag releases were distributed over a ...
Meeting Document : WG-FSA-13/P03 : Автор(ы): P. Ziegler
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Vast assembly of vocal marine mammals from diverse species on fish spawning ground
. The system transmits broadband signals from 700- 1500 Hz and a towed array receives the returned ... echoes used in the assessment of prey abundance and distribution. Periodically, only the receiver array ... was operated to listen to whale vocalization. The vocalization identifies the animals and the long ... predators and prey. The Ocean Acoustic Waveguide Remote Sensing (OAWR) system is at present tailored to ...
Meeting Document : WG-EMM-16/P01 : Автор(ы): 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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Domain 1 Marine Protected Area Preliminary Proposal PART B: Conservation Objectives
Abstract: This document contributes to the planning process for the designation of a Domain 1 MPA ... summarizes the results and decisions taken in a series of international workshops specifically developed to ... assist in the Domain 1 MPA planning process, including the 2012- First International Workshop held in ... Valparaiso, Chile, (WG-EMM-12/69); the 2013 Binational Workshop (Chile-Argentina) held in La Serena, Chile ...
Meeting Document : SC-CAMLR-XXXVI/BG/22 : Автор(ы): Delegations of Argentina and Chile
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Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South Georgia during winter
Georgia during winter based on Japanese krill fishery data during the period 1990-2012. High density and ... predictable fishing grounds occurred in the restricted areas throughout the study period. Main results are as ... predator performance were poor in the previous summer. Krill recruitment index at South Georgia suggested ... the strong influence in recruitment from the Antarctic Peninsula in the 1990s, whereas the influence ...
Meeting Document : WG-EMM-18/34 : Автор(ы): T. Ichii, Y. Mori, P.N. Trathan, K. Mahapatra, M. Okazaki, T. Hayashi and T. Okuda
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Revised joint research proposal for Dissostichus spp. in Subarea 88.3 by Korea and New Zealand
an additional 3 years covering the period 2018, 2019 and 2020. It was designed to build on Korea’s ... released on the slope, whilst also prospecting two of the northern seamount complexes and two boxes on the ... southern shelf, where little or no fishing has occurred. The main objective of the proposal is to determine ... the abundance of Antarctic toothfish in Subarea 88.3. Secondary objectives are to improve ...
Meeting Document : WG-FSA-18/42 : Автор(ы): Delegations of the Republic of Korea and New Zealand
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Possibility of predicting sea-ice concentration (SIC) in research block (RB) 48.6-5 (Southern part of Subarea 48.6) using sea surface temperature (SST) in RB 48.6-2 (Northern part of 48.6)
Abstract: It was reported at WG-SAM-2019 that the sea ice concentration (SIC) of RB ... 48.6-5 corresponded well with the dynamics of monthly sea surface temperature (SST) anomaly in RB ... 48.6-5. However, in the prediction of SIC in RB 48.6-5 using the monthly SST anomaly ... , consequently there is very little information on the SIC during this period. However, the SST of RB 48.6-2 can ...
Meeting Document : WG-FSA-2019/49 : Автор(ы): T. Namba, R. Sarralde, S. Somhlaba and J. Pompert
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A comparison of model predictions from KPFM1 and KPFM2
Abstract: We compare two versions of the krill-predator-fishery model to demonstrate the extent ... to which the predictions of KPFM1 can be reproduced with KPFM2. We also discuss the incorporation of ... seasonality into parameter estimates and a necessary change in the predator recruitment function of KPFM2 ... . These comparisons provide a preliminary indication that the substantial changes in the structure and ...
Meeting Document : WG-EMM-06/20 : Автор(ы): J. Hinke, G. Watters (USA), S. Hill and K. Reid (United Kingdom)
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Project of a software catalog of skeletal elements from Antarctic fish species, including some identification facilities
Abstract: In our study skeletal elements from fish species of the Antarctic waters were extracted ... by bioenzyme and compared with the aim to provide a computer supported identification system ... , including a database of bone pictures and in the near future various identification keys as well, completed ... by a simple tool to compare the same skeletal elements of different species. In the database most of ...
Meeting Document : WG-FSA-05/35 : Автор(ы): J. von Busekist, M. Vacchi and G. Albertelli (Italy)
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Spatial distribution of Champsocephalus gunnari in Subarea 48.3. Some implications for parameter estimation
Abstract: Results of the analysis of three consecutive cruises to subarea 48.3 are analyzed. A ... significant variance component associated with the formation of clusters of stations was found as well as a ... general trend for increasing densities since 1994. The significant variance component obtained for ... (as in the estimation of the variance of the mean density) might result in a gross underestimation of ...
Meeting Document : WG-FSA-96/30 : Автор(ы): Calcagno, J., Gonzalez, B., Marschoff, E.
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Monitoring Antarctic environmental variables using penguins
trips from 49 penguins indicated that during December 1991 and January 1992 the temperature in the top ... 100 m of the water column was highest in the western section of the Bay which concurred with higher ... biotic features of the environment can be studied using animals to transport probes to the study site ... , provided information is given on the position of the animals when measurements are made. Author(s): R.P ...
Meeting Document : WG-CEMP-94/27 : Автор(ы): R.P. Wilson, B.M. Culik and R. Bannasch (Germany) and J. Lage (France)
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