Search results
-
An index of per capita recruitment
recruitment (PCR) is proposed such that where R 1 is the proportion of age-l animals sampled in year ... that: (i) post-recruit mortality does not vary over age or between years; (ii) 100% of age-l animals spawn; (iii ... to recruits per spawner when mortality is constant over all ages and years, and when all age-l animals spawn ... -l animals sampled in year y and M is the post-recruit mortality rate. The intent of the index ... in this time series, first appearing as a large mode at 20 to 30 mm length and in subsequent years ... of the recruited population with one year of mortality removed: In addition to compounding the results of two ... animals adjusted for one year of mortality. Similar to RI, the index would measure the effectiveness ... to spend one to two years in the juvenile and sub- adult stages and may not spawn until age 2 or age ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Author(s): Hewitt, R
-
Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies
, killer whales alone, and the two species co-occurring were observed on 32.6%, 18.6% and 23.4 ... whales (Physeter macrocephalus). From 2003 to 2008, sperm whales alone, killer whales alone, and the two ... on D. eleginoides fisheries at the Crozet Islands 0 10 20 30 40 50 60 70 80 90 100 2003/04 2004/05 2005 ... between 2003 and 2008. 0 10 20 30 40 50 60 70 80 A B C D E F G Fishing vessel In te ra ct io ... is described under ‘Methods’. Tixier et al. 188 –10 –5 0 5 10 15 20 25 30 2003/04 2004/05 2005/06 ... to estimate killer whale (48%) and sperm whale (49%) depredation had occurred in that year. These two ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Author(s): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
-
Schedule of Conservation Measures in Force 1994/95
of Inspection Procedure 1. The inspector shall measure one series of 20 meshes, selected in accordance ... of 20 meshes selected in accordance with Article 3 shall be measured. The mesh size shall ... a weight or dynamometer, one series of 20 meshes only shall be measured. CONSERVATION MEASURE 5/V1 ... variations in the design of streamer lines can be tested on vessels carrying two observers, at least one ...
Document : Site Section: Publications
-
A functional division of Electrona carlsbergi (Tåning, 1932) area of habitat in relation to the latitudinal zonation of the Southern Ocean
in the Southern Atlantic along two meridional transects at 17° and 20°W in the latitudes from 37°30' to 55°30 ... survey was conducted in the Southern Atlantic along two meridional transects at 17° and 20° ... ;W in the latitudes from 37°30' to 55°30'S. The survey was mainly focussed on studies of distribution ... between 37°30' and 55°30'S. The choice of these two meridians was dictated by the theory ... encountered in 20 of the 26 hauls. It was found in the catches of two hauls in the Antarctic Zone, four hauls ... 6: PHCYHOK 7: PHCYHOK 8: rpaHH~bl mHpoTHblX 30H: CT3 - cy6TpOnH1.J:ecKa~ 30Ha; CT
3 - cy6TpOnH1.J:ecKa ... ) in March/April 1990 an integrated study survey was conducted in the Southern Atlantic along two meridional ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 369–395 : Author(s): Zemsky, A.V. and S.A. Zozulya
-
Comments on the draft of the conservation measure for an East Antarctic Marine Protected Area (2018)
measure for an East Antarctic Marine Protected Area (2018) Microsoft Word File: cc-xxxvii-bg-24.doc ... Comments on the draft of the conservation measure for an East Antarctic Marine Protected Area (2018) ...
Meeting Document : CCAMLR-XXXVII/BG/24 : Author(s): Delegation of the Russian Federation
-
Comments on the draft of the conservation measure for an East Antarctic Marine Protected Area (2018)
measure for an East Antarctic Marine Protected Area (2018) Microsoft Word File: cc-38-bg-31.docx Approval ... Comments on the draft of the conservation measure for an East Antarctic Marine Protected Area (2018) ...
Meeting Document : CCAMLR-38/BG/31 : Author(s): Delegation of the Russian Federation
-
ANALYSIS OF KRILL OBSERVER COVERAGE IN SUBAREA 48.3
one season, and have been present on board for about 30% of the fishing season. They have achieved ... in any one season, and have been present on board for about 30% of the fishing season. They have achieved ... that an efficient sampling proportion, at least for 48.3, should be >50% of vessels sampled each season, 20 ... be pursued for at least 4 years before the Scientific Committee will have sufficient data to determine ...
Meeting Document : WG-EMM-09/25 : Author(s): D.J. Agnew, P. Grove, T. Peatman, R. Burns and C. Edwards (United Kingdom)
-
Meeting of Antarctic experts comes to a close
and the European Union). We thank outgoing Chair, Dr Monde Mayekiso (South Africa), for the past two years ... Union). We thank outgoing Chair, Dr Monde Mayekiso (South Africa), for the past two years of service ... intersessionally on proposals for these MPAs before they are again considered at next year’s meeting ... earlier in the year, considers CCAMLR to be a world leader in tag-based stock assessments. CCAMLR’s ...
Page : Site Section: The Organisation
-
Report of the Workshop on data and modelling issues relevant to the planning of a potential Marine Protected Area (MPA) east of the zero meridian in the Weddell Sea (MAUD)
years. The workshop that had multi-meber participation had two objectives. First, to discuss ... Abstract: The workshop was convened to follow up the agreement in the 2018 meeting of CCAMLR ... The workshop was convened to follow up the agreement in the 2018 meeting of CCAMLR on an approach ... collate and enhance information for the sub-area east of the prime meridian over the next few years.  ...
Meeting Document : WG-EMM-2019/14 : Author(s): Delegation of Norway
-
Krill biomass estimates for two survey boxes to the north east and north-west of South Georgia in January 1996: the beginning of a five-year monitoring program
Island, within a foraging area of prime importance for breeding krill predators. Together the two boxes ... Island, within a foraging area of prime importance for breeding krill predators. Together the two boxes ... Abstract: Acoustic surveys were carried out in January 1996 within two 100 x 80 km boxes located ... the first in a new five-year British Antarctic Survey programme initiated in part to monitor inter-annual ...
Meeting Document : WG-EMM-96/18 : Author(s): Watkins, J.L., Murray, A.W.A., Brierley, A.S.