Search results
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Acoustic monitoring and evaluation of krill in the Antarctic ecosystem Bransfield Strait and around Elephant Island during ANTAR XXI and XXII, aboard RV Humboldt, Peru
(Euphausia superba) was held on board the BIC Humboldt during scientific campaigns Peru to Antarctica in the ... from the surface to 20 m deep. A wide distribution of krill in the study area, the highest densities ... were recorded in the Bransfield Strait and between Deception Island and Isla Torre (250-1 000 m / mn ... biomass in Elephant Island (4'569,039 t) represents 62.3% of all existing biomass in the study area ...
Meeting Document : WG-EMM-16/76 : Author(s): R. Cornejo, M. Flores and J. Zuzunaga
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Precautionary management of the Antarctic krill fishery at small spatial scales in the context of regional climate variability: pros and cons of coastal buffers, closed areas and move-on rules
Abstract: In this paper, we briefly review recent environmental information for the Antarctic ... Peninsula, highlighting how both natural variability in near-surface air temperatures and longer term ... changes in the oceanic domain add to the complexity of managing the Antarctic krill fishery, particularly ... , mortality events were observed. Fishing in close proximity to some colonies also occurred and it is ...
Meeting Document : SC-CAMLR-XXXV/BG/14 : Author(s): Delegation of the United Kingdom
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Results of 2016 pop-off satellite archival tagging of Antarctic toothfish in the Ross Sea region
Abstract: In 2016, scientists from the USA and New Zealand undertook a collaborative initiative ... were released on the southern Ross Sea shelf in the austral summer, and 5 PSAT tags were released on ... the northern seamounts in the austral winter, for a total of 15 PSAT releases. Of the 10 PSAT releases ... in the southern Ross Sea, data from two tags were reported via Argos (one with full data, one with ...
Meeting Document : WG-SAM-17/33 : Author(s): C.D. Jones and S.J. Parker
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Integrated research proposal for Dissostichus spp. in Subarea 88.3 by the Republic of Korea, New Zealand and Ukraine
Abstract: A research plan for Subarea 88.3 was commenced by Korea in 2016 and New Zealand joined ... the proposal in 2017. The joint research proposal was for 3 years covering the period 2017/18, 2018/19 ... . Following a proposal from the Ukraine to join the research plan in 2018, the Scientific Committee requested ... integrated proposal is unchanged, i.e., to determine the abundance and distribution of Antarctic toothfish in ...
Meeting Document : WG-SAM-2019/02 : Author(s): Delegations of the Republic of Korea, New Zealand and Ukraine
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The importance of Antarctic Toothfish as prey of Weddell Seals in the Ross Sea: a Review
prey of top predators in the Ross Sea. We herein assess relative weight given to direct, observational ... of large toothfish and therefore they are not detected in scat or stomach samples; biochemical ... of non-breeding seals away from breeding haulouts in McMurdo Sound, 0.8-1.3 toothfish were taken per ... monitoring of Weddell seal populations by CCAMLR. Otherwise, likely cascades will lead to dramatic changes in ...
Meeting Document : WG-EMM-09/P02 : Author(s): D.G. Ainley and D.B. Siniff
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Distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctic (30–80°E) in January–March 2006
to WG-EMM in 2006 (WG-EMM-06/16) because a reanalysis of the data has resulted in amendments to the ... % of intervals registered densities of 10 g m-2 or less. Mean densities were highest in the waters to ... the south of the Southern Boundary of the Antarctic Circumpolar Current, particularly in waters to the ... transects surveyed. The majority of acoustic krill detections were in the top 100 m of the water column ...
Meeting Document : WG-EMM-07/33 : Author(s): T. Jarvis, N. Kelly, E. van Wijk, S. Kawaguchi and S. Nicol (Australia)
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Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
community of top predators in the shelf waters of the Ross Sea. In spite of their abundance and important ... role in Antarctic food chains, very little is known of many ecological and biological aspects of this ... . Tangaroa in February–March 2008. Multi-frequency acoustic data (12, 38, 70 and 120 kHz) allowed ... times present close to the bottom, where they were frequently caught in demersal trawls shallower than ...
Meeting Document : WG-FSA-10/P04 : Author(s): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet
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Spatial distribution of predator/prey interactions in the Scotia Sea: implications for measuring predator/fisheries overlap
for Antarctic krill Euphausia superba in the South Shetland Islands have used different measurement ... the CCAMLR 2000 krill survey were used to identify the areas of potential overlap with fisheries in ... overlap. Despite distinct differences in foraging ecology a group of krill-dependent species including ... -specific differences in the characteristic scales which were of the order of 50- 100 km. Antarctic krill ...
Meeting Document : WG-EMM-02/14 : Author(s): K. Reid, M. Sims, R.W. White and K.W. Gillon (United Kingdom)
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INTERACTIONS OF PATAGONIAN TOOTHFISH FISHERIES WITH KILLER AND SPERM WHALES IN CROZET EXCLUSIVE ECONOMIC ZONE: AN ASSESSMENT OF DEPREDATION LEVELS AND INSIGHTS ON POSSIBLE MITIGATION SOLUTIONS
longline fishery is exposed to high levels of depredation by killer and sperm whales. In this context, this ... belonging to four different pods were involved in 81.3% of the interaction events. We also estimated that a ... total of 64 sperm whales interacted with the fishery on the Crozet EEZ in 2008. Significant variations ... . Based on the analyse of killer whales movements in relation to fishing vessel, when facing depredation ...
Meeting Document : WG-IMAF-09/12 : Author(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet (France)
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Absence of haematozoa in breeding macaroni Eudyptes chrysolophus and rockhopper E. chrysocome penguins at Marion Island
Abstract: Haematozoan infections cause the death of penguins in captivity, but seldom in the wild ... . No haematozoa were found in 89 blood smears taken from macaroni penguins Eudyptes chrysolophus or 80 ... (South Africa) Title: Absence of haematozoa in breeding macaroni Eudyptes chrysolophus and rockhopper E ...
Meeting Document : WG-EMM-03/19 : Author(s): A. Schultz and S.L. Petersen (South Africa)