Résultats de la recherche
-
e-sc-viii-a7.pdf
... place since the last meeting. The following documents were prepared by the Convener and Secretariat ... its development and implementation, was prepared by the Secretariat (WG-CEMP-89/5) for Working Group ... 3. 6. The Report was prepared by Drs J. Bengtson (USA), J. Croxall (UK), I. Everson (UK) and E ... environmental assessment are being conducted jointly by Argentina and the Federal Republic of Germany. 11
application/pdf attached to:WG-CEMP-89Meeting Report : WG-CEMP-89
-
e-sc-39-rep.pdf
... Resources met online on 26 October 2020 in its first virtual meeting and was chaired by Dr D. Welsford ... Scientific Committee noting the changes to the normal meeting schedule necessitated by the COVID-19 pandemic ... the closed captions will be retained by the Secretariat for verification purposes and will not be ... made available or distributed by the Secretariat. Harvested species Catches in the Convention Area
application/pdf attached to:SC-CAMLR-39Meeting Report : SC-CAMLR-39
-
Statistical problems in krill stock hydroacoustic assessments
method is most appropriate, this is made even more difficult by the fact that most survey methods assume ... non-stationary populations, which have not been well addressed by present techniques. However, this ... difficult by the fact that most survey methods assume the population is fixed in space, relative to the ... well addressed by present techniques. However, this does not invalidate the use of available methods ... estimates of abundance by depth and distance along a survey track. These relative estimates of abundance ... by adjusting the estimate by the ratio of the old and new target strengths. Surveys are conducted ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 301–309 : Auteur(s): Macaulay, M.C.
-
Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
techniques, from 1991 back to 1977. The predicted age structure, dominated in recent years by the 1987 year ... is recommended, based on the results of surveys by Falklands Protector in 1990/91 and 1991/92. File ... . The predicted age structure, dominated in recent years by the 1987 year-class (1 year olds in 1988 ... the results of surveys by Falklands Protector in 1990/91 and 1991192. Resume Suite a l'apparente ... stock size in 1990/91, all of these VPAs indicated that the biomass that year was dominated by 4 year ... distribution estimated by the VPA for that year (Figure 1). Concern was expressed at WG-FSA-91 that the large ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Auteur(s): Parkes, G.
-
Using ecosystem monitoring data to detect impacts
impacted by activities such as fishing. This paper discusses a range of methods for inferring such impacts ... point. The second approach allows inference criteria based on changes in this frequency rather than by ... indicate the state of ecosystems and whether they have been impacted by activities such as fishing. This ... inference criteria based on changes in this frequency rather than by reference to a critical probability ... assessed by reference to a control population. Developing man- agement strategies that use uncontrolled ... ongoing chal- lenges faced by CCAMLR is to develop a manage- ment strategy for the krill fishery which ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Auteur(s): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
-
Publications
in the CAMLR Convention Area. Fishery Reports describe the status, trends, by-catch, assessments ... terms and methods that are used for the collection of data by vessels in CCAMLR Longline fisheries ... the Sky (3.07 MB) is a guide for fishers to avoid by-catch of seabirds. The VME Taxa Classification ... (328.63 KB) helps assist in the identification of processed toothfish and is intended for use by ...
Page : Site Section: Publications
-
WG-FSA-17
longline and finfish trawl fisheries CCAMLR Secretariat WG-FSA-17/04 Fish by-catch in the krill fishery ... fishery of D. mawsoni in Subarea 48.6 by South Africa and Japan Delegations of Japan and South Africa WG ... -FSA-17/11 Revised research plan for the 2017/18 toothfish fishery in Division 58.4.4b by Japan and ... Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia, France ...
Meeting
-
e-sc-xxxvii-a4.pdf
... the meeting. 1.6 This report was prepared by S. Fielding (United Kingdom), G. Macaulay (Norway), E ... that the largest interannual variation of the mean of the maximum ping-by-ping seabed backscattering ... using seabed as a reference target to evaluate echosounder performance had been investigated by SG-ASAM ... an experiment by the Norwegian Institute of Marine Research (IMR) that indicated seabed integration
application/pdf attached to:SG-ASAM-18Meeting Report : SG-ASAM-18
-
Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
fishing operations were recorded by CCAMLR observers between 2000 and 2002 at South Georgia (Subarea 48.3 ... areas with lower catch rates, indications are that depredation by sperm whales can lead to a decrease in ... catches. Some mitigation measures have been tried by vessels to reduce interactions with cetaceans ... operations were recorded by CCAMLR observers between 2000 and 2002 at South Georgia (Subarea 48.3). Demersal ... (toothfi sh). However, in areas with lower catch rates, indications are that depredation by sperm whales ... can lead to a decrease in catches. Some mitigation measures have been tried by vessels to reduce ... islands and seamounts, mostly within waters regulated by CCAMLR. This fi sh ery is currently the most ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Auteur(s): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins
-
Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
catches. The only scientific surveys of these stocks during these years were conducted by Germany in 1985 ... , and by Spain in 1987 and 1991. More recently, the US Antarctic Marine Living Resources (US AMLR ... Antarctic or peri-Antarctic species predominated in the fish fauna. Species groups differed by up to 55-60 ... sample these catches. The only scientific surveys of these stocks during these years were conducted by ... Germany in 1985, and by Spain in 1987 and 1991. More recently, the US Antarctic Marine Living Resources ... differed by up to 55-60% from one shelf area to the other, mostly due to differences in the abundance of ... Kock et al. INTRODUCTION Antarctic waters have been commercially exploited by trawl fishing since ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Auteur(s): Kock, K.-H., C.D. Jones and S. Wilhelms