Search results
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
north of the islands, as usual. Tracks of drifting buoys (with curtain drogues at 30 m depth where krill ... waters at this time of the season. Krill abundance is reported to have increased to the normal level from ... Abstract: The waters in the vicinity of the South Shetland Islands and Elephant Island were ... surveyed to investigate mechanisms for the formation of krill concentrations and to estimate acoustic ...
Meeting Document : WG-KRILL-91/22 : Author(s): Delegation of Japan
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Risk assessment framework for subdividing the krill catch trigger level, including relevant background data and information
CM 51-07, which is due to lapse at the end of the 2015/16 fishing season, and presented its ... Abstract: At its annual meeting in 2016, WG-EMM recalled its obligation to review and advise on ... discussions on this subject in paragraphs 2.201 to 2.244 of its WG report. WG-EMM recommended that work be ... populations, in particular land-based predators, of being inadvertently or disproportionally affected by the ...
Meeting Document : SC-CAMLR-XXXV/BG/37
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The ‘CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean’
comparative biogeographic analyses or discovering marine biodiversity hotspots. At the end of five years of ... Broyer (Royal Belgian Institute of Natural Sciences, Brussels, Belgium) claude [dot] debroyer [at ... Abstract: The "CAML / SCAR-MarBIN Biogeographic Atlas of the Southern Ocean" Claude De ... of primary importance for monitoring biodiversity and detecting impacts of environmental changes ...
Meeting Document : WS-MPA-11/15 : Author(s): C. De Broyer (Belgium) and P. Koubbi (France)
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Educational poster on hook ingestion
them. The hooks found in albatross colonies at South Georgia in years prior to 2001/02 were of the type ... Abstract: Since the 2001/2002 season CCAMLR has recognised the importance of the high level of ... used in the regulated fishery in Subarea 48.3 (SC-CAMLRR-XXI/BG/7). In 2007 overwintering scientists at ... Bird Island, South Georgia, have noted an increase in the occurrence of hook injuries to wandering ...
Meeting Document : WG-FSA-07/20 : Author(s): G. Robertson (Australia)
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CCAMLR 2000 revisited
, estimates of krill biomass range from 65.64 Mt (CV= 11.50%) to 10.39 Mt (CV= 15.25%); and at 200 kHz from ... Abstract: The total abundance of krill in the Scotia Sea was estimated from an international ... Antarctic Treaty's Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) to ... incorporating recent improvements in the remote identification and target strength (TS) of krill, a range of ...
Meeting Document : WG-EMM-07/30 Rev. 1 : Author(s): D.A. Demer, A.M. Cossio and C.S. Reiss (USA)
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By-catch of juvenile Antarctic fish from krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992
. The mean daily length increase in N.larseni is estimated at 0.09 mm. Juveniles of Euphausia superba ... krill fishing by the BAT GrigOly Kovtun in the region of the South Georgia Islands during the period May ... larseni. The frequency of occurrence of juvenile fish was 18.2% when considering all krill tows and 45.5 ... % when only tows made in shelf waters were considered. Juvenile fish abundance, normalised to 1 t of ...
Meeting Document : WG-FSA-93/8 Rev. 1 : Author(s): E.A. Pakhomov and S.A. Pankratov (Ukraine)
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
. Most interactions from sperm whales occur during May at the start of the season with the sightings ... Abstract: Observer data collected on longliners between 2003 and 2009 were analysed to look at ... the levels of depredation caused by killer whales (Orcinus orca) and sperm whales (Physeter ... macrocephalus) around South Georgia. Since 2003, cetaceans have been observed on 22% of 14 300 observed lines ...
Meeting Document : WG-FSA-10/P06 : Author(s): J. Moir Clark and D.J. Agnew
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THE POWER OF ECOSYSTEM MONITORING
monitoring programme of the predators of Antarctic krill Euphausia superba at South Georgia together with a ... ecosystem monitoring programme, the utility of which depends upon its ability (measured by the statistical ... power to detect the effects of different levels of fishing was examined. 3. The power to detect the ... effects of fishing using either the krill population or a combined predator response index was low (20–40 ...
Meeting Document : WG-EMM-08/P11 : Author(s): K. Reid, J.P. Croxall and E.J. Murphy
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DRAFT SOFTWARE USER GUIDE FOR: ICESCAPE: INTEGRATING COUNT EFFORT BY SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES
accessing breeding sites often lead to counts of land-breeding predators being taken at suboptimal times in ... . Such time series are typically collected at only a limited number of sites, so a search algorithm is ... (2004) for Antarctic land-breeding predators. The software, which was developed as a suite of routines ... to standardise estimates of breeding populations derived from count data collected under variable ...
Meeting Document : WG-SAM-09/16 : Author(s): J. McKinlay, C. Southwell and R. Trebilco (Australia)
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COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY
11 000 pairs in 2009. At Dassen Island, the annual survival rate of adult penguins decreased from ... Abstract: The number of African penguins Spheniscus demersus breeding in South Africa collapsed ... from about 56 000 pairs in 2001 to some 21 000 pairs in 2009, a loss of 35 000 pairs (>60%) in eight ... classification of the species as Endangered. In South Africa, penguins breed in two regions, the Western Capeand ...
Meeting Document : WG-EMM-11/P8 : Author(s): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington