Resultados de la búsqueda
-
Small scale krill surveys: simulations based on observed euphausiid distributions
Abstract / Description: An observed distribution of aggregations of the euphausiid, Meganyctiphanes ... transects passing through three distributions each of which is given four rotations. The results indicate ... lowest for the survey design utilising parallel transects set at right angles to the long axis of the ... involved searching each pass for krill occurrence. Radial transects were designed on a 90° arc from the ... as a percentage and taken to represent mean krill density for the transect. This is an equivalent ... transects required to reliably detect changes of 20%, for instance, is 28 when the CV is 0.3 and 310 when ... 0 0.0 0.1 20% change in mean density 30% 40% 50 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Autor(es): Agnew, D.J. and S. Nicol
-
e-sc-xx-a5-appH.pdf
... Manual. 6.19 For sampling for an age–length key, as it would be impossible to sample all fish within ... date allows for correct year-class assignment. The age-class designation, or age, is written first ... APPENDIX H REPORT OF THE WORKSHOP ON ESTIMATING AGE IN PATAGONIAN TOOTHFISH (Center for Quantitative ... for Age Data ..................................................................... 545 OTOLITH
application/pdf attached to:WEAPT-01
Meeting Report : WEAPT-01
-
WG-FSA-14
, Assessments and Modelling (Punta Arenas, Chile, 30 June to 4 July 2014) CCAMLR-XXXIII/03 Maturity stages for ... 58.4.2 in 2014/15 Delegation of Japan WG-FSA-14/20 Revised research plan for the exploratory fisheries ... (United Kingdom) WG-FSA-14/34 An integrated stock assessment for the Heard Island and the McDonald Islands ... . Welsford (Australia) WG-FSA-14/46 Investigating the uncertainty of age determinations for Patagonian ...
Meeting
-
Population and survival trends of wandering albatrosses (Diomedea exulans) breeding on Macquarie Island
than 20 breeding pairs. Most breeding birds in this small population are banded and monitoring over the ... last 40 years has increasingly focused on their conservation status. Demographic trends of the ... with information from an intensive demographic study conducted between 1994 and 2003. Annual breeding ... Ocean including Marion Island, Iles Crozet and Amsterdam Island. The age distribution of the current ...
Meeting Document : WG-FSA-04/50 : Autor(es): A. Terauds, R. Gales, R. Alderman and G.B. Baker (Australia)
-
Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
catch for all years since 1998 (Table 3). Table 3: Sample size for age determination of fish caught ... . The models were run over the years 1985 to 2011, with an initial unexploited equilibrium age ... in Subarea 48.3. Year Sample size for age determination 1998 250 1999 259 2000 298 2001 467 ... 20% of B0 in the respective sample of any one year, for each year in the 35-year projection period ...
Document : Site Section: Publications
-
e-sc-40-a4.pdf
... valuable to build on the work of SG-ASAM-18/04 Rev. 1. 2.6 The Working Group noted that for February 2020 ... formation of an e-group to establish recommendations for the use of krill length frequency data on the ... estimation of Antarctic krill based on the up-to-date swarm based method for CCAMLR Division 58.4.1 in 2018 ... outcomes from WG-ASAM this year, and to the Secretariat for their support. 6.3 On behalf of the
application/pdf attached to:WG-ASAM-2021
Meeting Report : WG-ASAM-2021
-
Conservation Measure Conservation Measure 22-06 (2010)
Bottom fishing in the Convention Area Limitations: Except for waters adjacent to the Kerguelen ... and Crozet Islands Except for waters adjacent to the Prince Edward Islands Adopted at Meeting: CCAMLR ... and the Scientific Committee has been allowed an opportunity to review the data. 12. The ... PRO FORMA FOR SUBMITTING PRELIMINARY ASSESSMENTS OF THE POTENTIAL FOR PROPOSED BOTTOM FISHING ... proposal, using these guidelines and submitted as a meeting document to WG-EMM for review. 2. VME ... principles of conservation as stated in Article II of the Convention, Conscious of the urgent need to ...
Conservation Measure : 22-06 (2010)
-
Conservation Measure Conservation Measure 22-06 (2012)
Bottom fishing in the Convention Area Limitations: Except for waters adjacent to the Kerguelen ... and Crozet Islands Except for waters adjacent to the Prince Edward Islands Adopted at Meeting: CCAMLR ... allowed an opportunity to review the data. 12. The Secretariat shall annually compile a list of vessels ... Islands 2 Except for waters adjacent to the Prince Edward Islands ANNEX 22-06/A PRO FORMA ... proposal, using these guidelines and submitted as a meeting document to WG-EMM for review. 2. VME ... stated in Article II of the Convention, Conscious of the urgent need to protect vulnerable marine ...
Conservation Measure : 22-06 (2012)
-
e-sc-xxv-a6.pdf
... -SAM-04/20) showed that icefish of all age classes spend time in midwater and reinforced the evidence ... 20 for the TS–length relationship may not be appropriate for icefish. Application of the new target ... more dispersed form. Most icefish caught during the survey ranged in length between 20 and 30 cm ... IN ICEFISH ACOUSTICS Target strength 23. Dr Macaulay gave an overview of methods for measuring
application/pdf attached to:SG-ASAM-06
Meeting Report : SG-ASAM-06
-
A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels
data has been recognised as an important way to estimate the distribution and relative abundance of ... the utility of fishing-vessel-based acoustic data for a range of objectives. File: Wang et al.pdf ... 30 Wang et al. Figure 7: Frequency distribution of mean Sv (a) and variation of MVBS (b) for 20 ... –60 –40 –20 Sv (dB) 0 5 10 15 20 -100 -90 -80 ... of an attenuated signal may be compensated for by using the strength of the seabed return signal ... (Tmin) were set as –70 dB for 120 kHz as advised by Lawson et al. (2008) and –80 dB for both 38 and 70 ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Autor(es): Wang, X., J. Zhang and X. Zhao