Search results
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Acoustic visualization of the three-dimensional prey field of foraging chinstrap penguins
Abstract: Predator-prey interactions play an important role in determining the dynamics of ... the surface distribution of penguins and krill distributed in the 30- 40 m depth layer; no spatial ... ecosystems. Recently, concerns have arisen due to the commercial harvesting of Euphausia superba, the ... Antarctic krill, a keystone prey species in the Southern Ocean food web. It has been difficult to evaluate ...
Meeting Document : WG-Joint-94/12 : Author(s): J.E. Zamon, C.H. Greene, E. Meir, D.A. Demer, R.P. Hewitt and S. Sexton (USA)
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Population variability of biological parameters of penguins along the Antarctic Peninsula
contribute to the general knowledge of penguin biological variation, to generate a data baseline in the ... parameters and factors affecting penguins biology along the Antarctic Peninsula is presented in order to ... context of environmental changes such as climate change and human activity and to support the proposal of ... the Western Antarctic Peninsula protected marine area. The results show higher levels of immunological ...
Meeting Document : WG-EMM-2019/72 : Author(s): A. Barbosa
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Submission of papers to meetings of the Scientific Committee
processed and made available to Members on the CCAMLR website in advance of the meeting. 4. Papers should be ... Submission of papers to meetings of the Scientific Committee Submissions are due by ... 22 September. 1. Contracting Parties are invited to submit for consideration at meetings of the ... Scientific Committee, working papers [1] and background papers related to specific items of the Scientific ...
Page : Site Section: Meetings
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Can the chemistry of otolith nuclei determine population structure of Patagonian toothfish Dissostichus eleginoides?
to South Georgia in the Southern Ocean. Concentrations of 55Mn, 88Sr, and 137Ba, ratioed to 42Ca ... , showed a sharp population boundary in the vicinity of the Polar Front, between South Georgia and the ... Abstract: Otolith nucleus chemistry resolved the population structure of Patagonian toothfish ... between populations even in fully marine environments. Moreover, the nucleus chemistry indicated ...
Meeting Document : WG-FSA-06/P2 : Author(s): Ashford, J.R., A.I. Arkhipkin and C.M. Jones
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BOOK REVIEW: WHALES OF THE SOUTHERN HEMISPHERE: BIOLOGY, WHALING, AND PERSPECTIVES OF POPULATION RECOVERY by Y. A. Mikhalev
Abstract: Examined the distribution and migration patterns of whales in the Southern Hemisphere ... . The presence of a new species of killer whale in the Antarctic, Orcinus nana, is shown. The impacts of ... extermination of whales in the Antarctic ecosystem are examined. Regions are defined which could be used as ... THE SOUTHERN HEMISPHERE: BIOLOGY, WHALING, AND PERSPECTIVES OF POPULATION RECOVERY by Y. A. Mikhalev ...
Meeting Document : WG-FSA-09/11 : Author(s): Delegation of Ukraine
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A history of the acquisition and analysis of sea-ice data by CCAMLR
the early years of development of the ecosystem monitoring program sea ice data, especially derived ... from satellite images, was recognised as an important source of information for interpreting changes in ... monitored predator parameters. Standard methods for collection of environmental parameters were agreed in ... source of data, digital images produced by the US National Snow and Ice Data Centre, with a relatively ...
Meeting Document : WG-EMM-96/15 : Author(s): Agnew, D.J.
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A re-analysis of the Kerguelen Shelf and Skiff Bank stocks of Champsocephalus gunnari
-frequency data for the years 1981 to 1990. Cohort analysis yielded a Stock Biomass of 22 711 tonnes in 1988 ... possible declining trend in the abundance of this stock. Author(s): G. Duhamel (France) and D.J. Agnew ... Abstract: Catches of Champsocephalus gunnari from the Kerguelen Shelf and Skiff Bank stocks were ... re-calculated from those used by the Working Group on Fish Stock Assessment in 1989 using length ...
Meeting Document : WG-FSA-90/17 : Author(s): G. Duhamel (France) and D.J. Agnew (Secretariat)
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Assessment of the analysis of anomalous CPUE data from data-poor exploratory fisheries
during the Workshop for the Analysis of the Anomalous High CPUE by Korean Vessels in the CCAMLR Area ... Abstract: The article is concerned with discussion of the Analysis of anomalous CPUE data from ... data-poor exploratory fisheries (WG-FSA-12/07). Key points of the paper were presented and discussed ... high CPUE for Dissostichus spp. revealed by several vessels in the Subareas 58.4.1, 58.4.2 and 48.6. A ...
Meeting Document : WG-SAM-13/16 : Author(s): V.A. Tatarnikov, A.F. Petrov and I.I. Gordeev (Russia)
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An investigation of avoidance by Antarctic krill of RRS James Clark Ross using the Autosub-2 autonomous underwater vehicle
of RRS James Clark Ross in the northern Weddell Sea and in the Bransfield Strait to assess avoidance ... of the research vessel by Antarctic krill Euphausia superba. The AUV was equipped with the same type ... of scientific echosounder as the research vessel (Simrad EK500 operating at 38 kHz and 120 kHz) and ... measured the density of krill along transect acoustically (g m-2 wet mass) prior to the ship’s arrival. We ...
Meeting Document : WG-EMM-01/14 : Author(s): A.S. Brierley, P.G. Fernandes, M.A. Brandon, E. Armstrong, D.G. Bone and the Autosub Team (United Kingdom)
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On possible influence of continuous krill fishing technology with the use of ‘air-bubbling suspension system’ on ecosystem elements
Abstract: It was shown that potential increase in krill fishery in the immediate future ... , accompanied by introduction of highly intensive fishing and processing technologies call for studying the ... fishery influence on ecosystem components beyond the framework of traditional investigations of predator ... of studying the krill fishing technology. It is just trawl design and fishing method that will ...
Meeting Document : WG-EMM-06/27 : Author(s): S.M. Kasatkina and V.A. Sushin (Russia)