Résultats de la recherche
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Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys
Abstract: This paper examines temporal changes in distribution and sighting density indices of ... in EMM-15 that an analysis of historical cetacean surveys in IWC Area II could provide a context for ... at-sea observations of cetaceans. Sighting data examined in this study were obtained during a series ... of Antarctic sighting cruises for whale assessment purposes organized by the International Whaling ...
Meeting Document : WG-EMM-16/26 : Auteur(s): L.A. Pastene and T. Hakamada
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Committee for Environmental Protection: 2016 Annual Report to the Scientific Committee of CCAMLR
Abstract: Cooperation between the Scientific Committee of CCAMLR (SC-CAMLR) and the Committee for ... Environmental Protection (CEP) has been steadily increasing over the last few years to the mutual benefit of ... between the Chairs of the CEP and SC-CAMLR, the report of the CEP meeting is presented to SC-CAMLR by the ... CEP Observer to SC-CAMLR and the report of the meeting of SC-CAMLR is presented to the CEP by the SC ...
Meeting Document : SC-CAMLR-XXXV/BG/09 : Auteur(s): CEP Observer to SC-CAMLR (Dr P. Penhale, USA)
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The Future of Antarctica Forum: distinguishing climate change impacts from other impacts in the Antarctic Peninsula
Abstract: The paper reports on the outcomes of the first Future of Antarctica Forum that ... representatives from the tourism and fishing industries, all of whom actively engaged in these discussions and ... of continued monitoring of the sensitive Antarctic Peninsula region and challenged Oceanites, because ... of its Antarctic Site Inventory project’s 22-year history monitoring this region, to ‘ distinguish ...
Meeting Document : CCAMLR-XXXV/BG/14 : Auteur(s): Submitted by Oceanites, Inc.
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Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method
Abstract: The dB-difference and characteristics of krill aggregation inhabiting Subarea 48.1 ... , which includes the Elephant Island peripheries and the west and south of the South Shetland Islands ... was performed at seven stations. Using the difference between the dB values of two volume ... Antarctic krill (4.9 to 12.0 dB) and fish (-4.0 to-0.2 dB). The distributions and mean Sv of krill ...
Meeting Document : SG-ASAM-17/04 : Auteur(s): S.-G. Choi, K. Lee and D. An
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Spatio-temporal variability in the winter diet of larval and juvenile Antarctic krill, Euphausia superba, in ice-covered waters
and a major fisheries resource. The winter survival of age class 0 (AC0) krill is susceptible to ... their first winter. However, our understanding of their overwintering diet and its variability is ... limited. We studied the spatio-temporal variability of the diet in 4 cohorts of AC0 krill in the Northern ... volumes of copepods. Many of the prey species found in the stomachs were sea ice-associated. Our results ...
Meeting Document : WG-EMM-18/P18 : Auteur(s): F.L. Schaafsma, D. Kohlbach, C. David, B.A. Lange, M. Graeve, H. Flores and J.A. van Franeker
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Progress report on the joint research for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand in 2018/19
–883_P9. Due to extreme ice conditions covering the southern part of 88.3, Janas (NZL) was not able to ... conduct its part of the survey. The total catch of D. mawsoni was 63,840 kg comprising 2,526 individuals ... similar in research blocks 883_1, 883_3 and 883_4 with the range of 0.1110–0.1571, but much lower in ... research block 883_5, 883_P8, 883_P9 with the range of 0–0.0185. Tagging rate and tag overlap in Subarea ...
Meeting Document : WG-SAM-2019/11 : Auteur(s): Delegations of the Republic of Korea and New Zealand
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Characterisation of the toothfish fishery in the Ross Sea region (Subarea 88.1 and SSRUs 88.2A–B) through 2018/19
and SSRUs 88.2AB) together with biological characteristics of the catch of Antarctic toothfish through ... the 2019 season. The implementation of the Ross Sea Region Marine Protected area in December of 2017 ... , concentrated fishing on the slope south of 70° S on the traditional fishing grounds, with some expansion of ... respect to the current management areas. The median and 90 th percentile of the scaled length ...
Meeting Document : WG-FSA-2019/07 : Auteur(s): J. Devine, S. Parker and A. Dunn
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Preliminary tag-recapture based population assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 48.4
Abstract: The biomass of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 is estimated ... from tagging returns to average 1109 tonnes since 2010, with a five-year (2015-2019) average biomass of ... 1187 tonnes. Applying the CCAMLR agreed precautionary assumption of average biomass across the time ... series and harvest rate of γ = 0.038, implies a 2019/20 yield of 45 tonnes using the 5-year average ...
Meeting Document : WG-FSA-2019/27 : Auteur(s): T. Earl and A. Riley
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New page in the Antarctic krill fishing (Translation from The Fishing Industry of Ukraine, 1–2/2007: 11–14)
Abstract: Antarctic krill (Euphausia superba) is one of the largest marine resources of animal ... origin protein on the planet. Krill is the key element of the Antarctic Region ecosystem. Construction of ... modern vessels for krill fisheries and processing is foreseen anyway; introduction of new technologies on ... and other preparations. Became possible due to the construction of specialized large-capacity fish ...
Meeting Document : SC-CAMLR-XXVI/BG/26 : Auteur(s): Delegation of Ukraine
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Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins
Abstract: 1. Estimating food consumption is central to defining the ecological role of marine ... , growth, diet, life history and the activity budgets of marine predators to estimate population energy ... requirements and food consumption. 2. Two species of marine predators (Antarctic fur seal Arctocephalus gazella ... examples to test the algorithm. A sensitivity analysis showed that estimates of prey consumed were most ...
Meeting Document : WG-EMM-02/23 : Auteur(s): I.L. Boyd (United Kingdom)