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CCAMLR

Comisión para la Conservación de los Recursos Vivos Marinos Antárticos

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  1. Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015

    Abstract:  In 2014, CCAMLR endorsed a TAC of 4410 t of Patagonian toothfish in Division 58.5.2 ... . This report describes the recent fishing and data collection activities in the fishery. The fleet has ... enhance the tagging program that was established in 1998, the fleet has increased tagging rate in this ... , considerably adding to information on the structure of the population. The ageing program at AAD has produced ...

    Meeting Document : WG-FSA-15/55 : Autor(es): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)

  2. Environmental response of upper trophic level predators reveals a system change in an Antarctic marine ecosystem

    increase in the frequency of years of low reproductive output. Changes in the population structure of krill ... . We suggest that the effects of underlying changes in the system on krill population structure has ... close to the limit of krill availability. Understanding how krill demography is affected by changes in ... performance and survival is one of the keys to predicting future change in Antarctic marine ecosystems. Author ...

    Meeting Document : WG-EMM-01/21 : Autor(es): K. Reid and J.P. Croxall (United Kingdom)

  3. Development of a vessel safety checklist and debriefing protocol for use in SISO

    Abstract:  In accordance with the recommendations of the 2013 Panel Review of the CCAMLR Scheme of ... of SISO recommends the performance of a vessel safety check (see proposed Annex II in CCAMLR-XXXVI/25 ... approved by the Commission (proposed A(e bis) in CCAMLR-XXXVI/25).  This paper provides examples of vessel ... ) prior to observer deployment, as well as the use of a form and protocol for debriefing observers to be ...

    Meeting Document : CCAMLR-XXXVI/BG/16 : Autor(es): Delegation of the USA

  4. Preliminary stock assessment of Rajiformes in statistical Subarea 48.3

    simple Petersen model estimation of the population trends. The bycaught Rajiformes in subarea 48.3 are ... CCAMLR longline fisheries. However, they form a major part of the bycatch and as such it is necessary to ... understand the effect of each fishery on the Rajiformes population. Here we describe biological information ... gained from the skate tag-release programme in statistical subarea 48.3 and use the tag recaptures for a ...

    Meeting Document : WG-FSA-14/48 : Autor(es): M. Soeffker, V. Laptikhovsky, J. Ellis and C. Darby (United Kingdom)

  5. Characteristics of krill aggregations in 48.4 subdivision during January–February 2000

    characteristics of some 2400 krill swarms detected and sized acoustically in the study area have been described ... been made an analysis of krill biomass horizontal and vertical distributions in the study area in ... . Major krill biomass (of about 64%) was concentrated in krill swarms within the meander and eddies zones ... of the Weddell Sea (14% of study area), being observed in upper 80 m depth level. There has been made ...

    Meeting Document : WG-EMM-01/42 : Autor(es): S.M. Kasatkina, A.P. Malyshko, V.N.Shnar and O.A. Berezhinskiy (Russia)

  6. A REVIEW OF BIAS AND UNCERTAINTY IN ANTARCTIC PACK-ICE SEAL ABUNDANCE ESTIMATES

    of pack-ice seals focuses primarily on abundance and to a lesser extent trends in abundance. The ... present day. The review of abundance surveys is presented chronologically, and in doing so tries to ... Abstract:  While the joint CCAMLR-IWC workshop will consider a number of parameters for species ... review addresses population surveys and abundance estimates for the four species of phocid seal commonly ...

    Meeting Document : CCAMLR-IWC-WS-08/06 : Autor(es): Steinhage, D., Bengtson, J., Blix, A.S., Bester, M., Boveng, P., Laake, J., Cameron, M., Nordøy, E., Forcada, J., Stewart, B., Southwell, C., Trathan, P., Rogers, T., Plotz, J., Bornemann, H.

  7. Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer

    Abstract:  The main component of zooplankton in Antarctic pelagic waters, apart from copepods or ... in the central part of Admiralty Bay, in Ezcurra Inlet and in the smaller coves of the bay using the ... of the penguins and pinnipeds’ diet. Admiralty Bay, because of its specific hydrological conditions ... make this region particularly susceptible to climate change. This area is also a breeding site of the ...

    Meeting Document : WG-EMM-14/60 : Autor(es): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)

  8. Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators

    Abstract:  The breeding performance of seabirds and seals at Bird Island, South Georgia, in the ... penguins. Offspring survival and hence PRP were largely independent of krill in the diet for macaroni ... monitoring programme. We examined the mechanistic relationships between, and patterns of inter-annual ... included foraging performance, offspring survival, offspring mass, the contribution of Antarctic krill ...

    Meeting Document : WG-EMM-12/16 : Autor(es): S.L. Hill, C.M. Waluda, H.J. Peat and S. Fielding (United Kingdom)

  9. Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity

    each fc was extracted from a correlation analysis of energy reverberated in the tank. Measurement ... omnidirectional emitter into one of three glass carboys containing groups of krill swimming in 9.3, 19.3 or 45.9 l ... of seawater (0.6??temperature??3.6 °C). Between each pulse, the krill moved within the fixed-boundary ... . At each center frequency (fc), the coherent energy in 200-pulse ensembles identified sound scattered ...

    Meeting Document : WG-EMM-02/49 : Autor(es): D.A. Demer and S. G. Conti (USA)

  10. Towards a validation of ageing in mackerel icefish (Champsocephalus gunnari) – can we estimate age more accurately?

    briefly summarizes the state of knowledge on age determination in mackerel icefish and assesses the ... ototlith exchange programme in the late 1980’s revealed considerable differences between readers when fish ... older than 3 or 4 years were aged. These differences could not be reconciled at the end of the exchange ... . A second age determination workshop on mackerel icefish to improve the accuracy of age determination ...

    Meeting Document : WG-FSA-05/23 : Autor(es): K.-H. Kock (Germany) and Zh.A. Frolkina (Russia)

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Correo electrónico: ccamlr [at] ccamlr [dot] org
Teléfono: +61 3 6210 1111
Facsímil: +61 3 6224 8744
Dirección: 181 Macquarie Street, Hobart, 7000, Tasmania, Australia

 

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Recent and Upcoming Meetings

  • WG-FSA-2025
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