Résultats de la recherche
-
ABUNDANCE ESTIMATES FOR CRABEATER, WEDDELL AND LEOPARD SEALS AT THE ANTARCTIC PENINSULA AND IN THE WESTERN WEDDELL SEA (90º - 30º W, 60º - 80º S)
Abstract: This paper presents spatial modelling based abundance and density estimates of pack-ice ... . Trathan (United Kingdom) Title: ABUNDANCE ESTIMATES FOR CRABEATER, WEDDELL AND LEOPARD SEALS AT THE ...
Meeting Document : WG-EMM-PSW-08/06 : Auteur(s): J. Forcada and P.N. Trathan (United Kingdom)
-
Inter-annual variability in krill density at South Georgia: 1997–2012
, maintaining very large numbers of predators, and fluctuations in their abundance can affect the overall ... structure and functioning of the ecosystems. The inter-annual variability in the abundance and biomass of ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... Box (WCB) survey area to the north of South Georgia, Southern Ocean. Krill targets were identified in ...
Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
-
Preliminary trials to test mitigation measures aimed at reducing Macrourus spp. by-catch on autoliners targeting D. eleginoides with longlines in the CCAMLR Convention Area
vessel (14/0 EZ J-type hooks and squid bait respectively). Catch per unit effort (CPUE) of Macrourus spp ... in catch rates of Macrourus spp due to bait was significant, but not for hook-type. Bait type had ... similar effects on the catch rates of Dissostchus spp. and of all other by-catch species combined. However ... significant. In order for the benefits of mackerel bait in reducing macrourid (and other species) bycatch to ...
Meeting Document : WG-FSA-07/33 : Auteur(s): R.E. Mitchell, D.J. Agnew, T. Carruthers, J. Clark, L. Ross (United Kingdom) and J. van Heerden (South Africa)
-
Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 1999–2000
Abstract: This paper summarises seabird bycatch during the fourth year (July 1999-June 2000) of ... sanctioned fishing trips. Fishing effort was 7.4 million hooks, a 45% increase on the number of hooks set in ... 1998199. Observers reported 268 birds of six species killed. White-chinned Petrels Procellaria ... that reported in either 1996/97 or 1997/98. The absolute number of birds killed increased more than ...
Meeting Document : WG-FSA-00/30 : Auteur(s): P. Ryan and B. Watkins (South Africa)
-
Age-structured production model for toothfish at South Georgia
through the introduction of a new annual selectivity function, modelled as a unimodal, algebraically ... decaying function of age, with three easily interpretable parameters. When only a single selectivity curve ... reaches preset parameter boundaries. With one or two parameters of the selectivity estimated only once the ... the CPUE very closely. Convergence problems were noted for the highly parameterised versions of this ...
Meeting Document : WG-FSA-SAM-05/18 : Auteur(s): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)
-
BEACH DEBRIS SURVEY AT CAPE SHIRREFF, LIVINGSTON ISLAND, DURING THE ANTARCTIC SEASON 1996/97
beaches of Cape Shirrefl Livingston Island, South Shetland Islands, where a total of 1 609 articles with a ... total of 49.03 Kg were obtained. Besides, from a neighbouring area of Cape Shirreff, were collected 178 ... ) 0,40/0. Of the plastic items, those used in fisheries (strapping bands 207, ropes 205, and net pieces 9 ... ) were 421 articles. The total density of marine debris collected on the site has increased from 0.65 ...
Meeting Document : CCAMLR-XVI/BG/35 : Auteur(s): Delegation of Chile
-
Resolution X (2000) adopted at SATCM-XII
Title: Resolution X (2000) adopted at SATCM-XII Approval: Approved ...
Meeting Document : SCOI-00/23
-
Speech by ambassador Edward J. Perkins at CCAMLR, Hobart, Tasmania
Title: Speech by ambassador Edward J. Perkins at CCAMLR, Hobart, Tasmania Approval: Approved ...
Meeting Document : CCAMLR-XIII/BG/31
-
Agenda for the Ad Hoc Technical Group for At-Sea Operations
Title: Agenda for the Ad Hoc Technical Group for At-Sea Operations Approval: Approved ...
Meeting Document : TASO-09/01
-
WG-EMM Workshop on At-sea Behaviour
Author(s): Boyd, I.L. Title: WG-EMM Workshop on At-sea Behaviour Approval: Approved ...
Meeting Document : WG-EMM-96/16 : Auteur(s): Boyd, I.L.