Résultats de la recherche
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CEMP Special Fund
Fisheries Science Center, La Jolla, California, USA Title: CEMP Special Fund Approval: Approved ...
Meeting Document : SC-CAMLR-XXXII/BG/11 : Auteur(s): Submitted by the Interim Task Group of the CEMP Special Fund: Olav Rune Godø, Institute of Marine Research, Bergen Nordnes, Norway Andrew Constable, Australian Antarctic Division, Kingston, Tasmania, Australia Christopher Jones, Antarctic Ecosystem Research Division, NOAA Southwest Fisheries Science Center, La Jolla, California, USA
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Testing early life connectivity using otolith chemistry and particle-tracking simulations
compared the chemistry with simulated particle transport using a circulation model. Material laid down in ... nests, are transported in the southern ACC, missing South Georgia but following trajectories along the ... stages in the water column substantially influence the direction and extent of connectivity. Used in ... . Author(s): J. Ashford, M. La Mesa, B.A. Fach, C. Jones and I. Everson Title: Testing early life ...
Meeting Document : WG-FSA-10/P02 : Auteur(s): J. Ashford, M. La Mesa, B.A. Fach, C. Jones and I. Everson
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KRILL CATCHES INDICATE THE IMPACT OF THE EL-NIŇO – SOUTHERN OSCILLATION RELATED PROCESSES ON THE DISTRIBUTION OF KRILL BIOMASS BETWEEN SUBAREAS OF THE ATLANTIC SECTOR OF ANTARCTIC
associated with La Niňa event in the South Pacific. The mechanisms for these phenomena associated with the ... fishery management issues. Krill catch data in Subareas 48.1, 48.2 and 48.3 are compared to the AMLR ... analysis suggest that the dynamics of krill biomass in fishable aggregations in Subareas 48.1 and 48.2 is ... negative anomalies of catches in the important Subarea 48.2 are seen in the year of oceanographical regime ...
Meeting Document : WG-EMM-09/47 : Auteur(s): V. Spiridonov (Russia)
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Age validation of juvenile Notothenia rossii at Potter Cove, South Shetland Islands, using mark-recapture data
Abstract: Among all validation methods of age determination in fish, release of known age and ... principle of annual deposition of an annulus in scales and otoliths. Of 132 juvenile specimens (TL = 22.1 ... –38.1 cm) tagged and released in successive years from 2004 to 2010, 7 were recaptured at the same site ... after periods of 1–13 months. In scales of five specimens recovered after 10–13 months, one extra ...
Meeting Document : WG-FSA-13/P01 : Auteur(s): E. Moreira, E. Barrera-Oro and M. La Mesa
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Age and growth of Scotia Sea icefish Chaenocephalus aceratus (Lönnberg, 1906), from the South Shetland Islands
literature for C. aceratus, and discussed in the light of recent commercial exploitation. Author(s): M. La ... around the South Shetland Islands in the austral summer 2002 (January-February). Fish were caught by ... observed in other recent surveys within the same area, C. aceratus represented one of the predominant ... were estimated by counting annuli present in the sagittal otoliths, exposed by grinding and polishing ...
Meeting Document : WG-FSA-02/77 : Auteur(s): M. La Mesa, J. Ashford, E. Larson and M. Vacchi
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Disentangling the influence of three major threats on the demography of an albatross community
% of the variability in survival, with higher survival rates following La Niña events. Habitat ... ) at subantarctic Macquarie Island, we quantified the temporal variability in survival, breeding ... probability and success. In three species (excluding the wandering albatross because of the small population ... Southern Annular Mode (SAM) explained 22.9-40.9% and 22.2-33.4% of the temporal variability in survival and ...
Meeting Document : WG-FSA-2019/34 : Auteur(s): J.B. Cleeland, D. Pardo, B. Raymond, G.N. Tuck, C.R. McMahon, R.A. Phillips, R. Alderman, M.-A. Lea and M.A. Hindell
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Feasibility of lead-radium dating the otoliths of blackfin icefish (Chaenocephalus aceratus) and ocellated icefish (Chionodraco rastrospinosus)
was necessary as a first look at lead-radium levels. The application was successful as a first step in ... determining the parameters of future applications that would lead to a validation of age. In the current study ... arbitrary target core weight of 0.01 g, near the low end of the range used in this study. It is recommended ... , M. La Mesa and J. Ashford (USA) Title: Feasibility of lead-radium dating the otoliths of blackfin ...
Meeting Document : WG-FSA-10/17 : Auteur(s): A.H. Andrews, M. La Mesa and J. Ashford (USA)
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Standing stock estimates of finfish biomass from the 2002 Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1) with some notes on the composition of catches taken north of Joinville Island – D’Urville Island
and the South Shetland Islands in January – February 2002 in close collaboration with the U.S ... results obtained in 1998 and 2001 for most species. Length compositions in the most abundant species ... resembled closely those in previous years. The proportion of juvenile G. gibberifrons, the most abundant ... species in the region, decreased significantly since 1998. No indication was found for the presence of a ...
Meeting Document : WG-FSA-02/24 : Auteur(s): K.-H. Kock (Germany), C.D. Jones (USA), J. Appel (Germany), G. von Bertouch (CCAMLR Secretariat), D.F. Doolittle (USA), M. la Mesa (Italy), L. Psenichnov (Ukraine), R. Riehl (Germany), T. Romeo (Italy), S. Schöling (Germany) and L. Zane (Italy)
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BEACH DEBRIS SURVEY AT CAPE SHIRREFF, LIVINGSTON ISLAND, DURING THE ANTARCTIC SEASON 1996/97
first time it was observed an important presence of pieces (708) of expanded polyestirene (PE) with a ... occurred in all previous seasons with monitoring activities, plastic was the principal item (1517 pieces ... ) 0,40/0. Of the plastic items, those used in fisheries (strapping bands 207, ropes 205, and net pieces 9 ... articles/m2 in 1993/94 to 1.02 in 1994/95, 1.52 in 1995/96, and diminished to 0.46 in 1996/97. For the ...
Meeting Document : CCAMLR-XVI/BG/35 : Auteur(s): Delegation of Chile
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Albatross populations: status and threats
assessed where sufficient data are available. Despite increased efforts in population monitoring, the ... status (i.e.. population trends) of two-thirds of the world's ca. 150 albatross populations remain ...
Meeting Document : WG-FSA-97/28 : Auteur(s): Gales, R.