Search results
-
THE RISK TO FISHERY PERFORMANCE ASSOCIATED WITH SPATIALLY RESOLVED MANAGEMENT OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) HARVESTING
will affect fishery performance. One metric of potential performance is the probability of encountering ... exploitable densities of the target species at the scale of fishing operations. The probability of ... encountering exploitable densities of Antarctic krill, Euphausia superba, at the 1 nm scale during an acoustic ... spatial scale of management units could usefully predict effects at the scale of fishing operations ...
Meeting Document : WG-EMM-09/P10 : Author(s): S. Hill, P. Trathan and D. Agnew
-
PROPOSAL FOR AN EXTENSION TO THE MARK–RECAPTURE EXPERIMENT TO ESTIMATE TOOTHFISH POPULATION SIZE IN THE SOUTH OF SUBAREA 48.4
Abstract: 1. A three-year tagging study in the South of Subarea 48.4 was initiated in the 2008/09 ... fishing season with the aims of providing the data required for assessments of the population structure ... , size, movement and growth of both Dissostichus eleginoides and Dissostichus mawsoni in the South of ... 48.4; 2. In 2008/09 a total of 214 D. eleginoides and 192 D. mawsoni were tagged and released. Two ...
Meeting Document : WG-FSA-09/18 : Author(s): J. Roberts and D.J. Agnew (United Kingdom)
-
Is toothfish catch correlated with the catch of vulnerable benthic invertebrate taxa?
Abstract: Accurate estimation of the true impact of bottom fishing on vulnerable marine ... ecosystems (VMEs) requires knowledge of the distribution of those communities relative to the fishing ... study used the catch of the six most common vulnerable invertebrate taxa reported by observers on New ... benthic invertebrate catch rates at a longline segment level. Analysis of the data available showed no ...
Meeting Document : WG-EMM-10/27 : Author(s): S.J. Parker and M.H. Smith (New Zealand)
-
Modern data on parasitofauna of Dissostichus mawsoni and by-catch species from logline fishing in Antarctica
Abstract: Parasites are one of an integral part of any ecosystem and unfortunately knowledge ... of Antarctic circumpolar ecosystem plays its role on existence of endemic forms of animals, including ... parasites, which sometimes have unpredictably large sizes and distribution. The best example of it ... – Lophoura szidati. In this work we conclude the results of preliminary analysis of collected parasites of ...
Meeting Document : WG-FSA-12/P09 : Author(s): I.I. Gordeev and S.G. Sokolov
-
Multiyear changes in distribution and abundance of Salpa thompsoni in the Western Antarctic Peninsula region
characterized by a circumpolar distribution and its appearance is clearly associated with the occurrence of the ... Antarctic Circumpolar Current (ACC). This area of the Southern Ocean is characterized by a relatively low ... productivity and high water temperature. In recent years the expansion of distribution range of this ... invertebrate species has been observed. This process may be a result of the ACC southward movement, which is ...
Meeting Document : WG-EMM-16/75 : Author(s): A. Panasiuk, A. Słomska, J. Wawrzynek, M. Konik and A. Weydmann
-
CCAMLR System of Inspection
Basic Documents, Part 9 Text of the ... CCAMLR System of Inspection System of Inspection 113 Text of the CCAMLR System of Inspection1 ... I. Each Member of the Commission may designate Inspectors referred to in Article XXIV of the ... activities to be inspected, the provisions of the Convention and measures adopted under it. (b) Members ...
Document : Site Section: Publications
-
Effects of variability in prey abundance on reproduction and foraging in chinstrap penguins (Pygoscelis antarctica)
Abstract: Life-history theory predicts that adults of long-lived species such as seabirds should ... offspring provisioning, the most energetically costly component of seabird parental care, adults need to ... contend with large interannual fluctuations in prey availability and hence the cost of chick provisioning ... foraging effort. Using ship-based hydroacoustic assessment of prey, time-depth recorders attached to ...
Meeting Document : WG-EMM-06/P6 : Author(s): D.A. Croll, D.A. Demer, R.P. Hewitt, J.K. Jansen, M.E. Goebel and B.R. Tershy (USA)
-
Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
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 ... , with killer whales present on 3.8% and sperm whales on 17.7% of lines. Killer whales appear in pod ... sizes normally of 4 to 10 animals, and often appear to actively seek out fishing vessels and ‘strip’ the ...
Meeting Document : WG-FSA-10/P06 : Author(s): J. Moir Clark and D.J. Agnew
-
Data on feeding and food objects of southern minke whales
Abstract: Presented research on feeding and the dietary structure by species of minke whales ... conducted in all four seasons. There have been no noticeable increase of the population size of large whales ... over the years after the cessation of whaling. The role of a short and profitable from the energy point ... of view trophic chain «phytoplankton- krill- baleen whales», which is of main interest due to the ...
Meeting Document : SC-CAMLR-XXVI/BG/25 Rev. 1 : Author(s): Delegation of Ukraine
-
An interlaboratory comparison of ages estimated for Dissostichus eleginoides from the Argentine Sea, southwest Atlantic Ocean
Abstract: To examine consistency among laboratories in age estimation of Patagonian toothfish and ... the effects on readings of different otolith processing methods, scales and otoliths were taken from ... Institute for Fisheries Research and Development (INIDEP) Argentine, National Institute of Water and ... University, Norfolk, Virginia, United States of America. (CQFE). As a consequence of the exchange of otoliths ...
Meeting Document : WG-FSA-04/45 : Author(s): M.C. Cassia (Argentina), P.L. Horn (New Zealand) and J.R. Ashford (USA)