Search results
-
Antarctic fur seals in the South Shetland Islands: pup production and population trends
Abstract: Discovered in 1819, the South Shetland Islands soon became the focus of intensive ... and did not begin re-colonizing until ~80yrs later. The first reported pups born post-exploitation ... reports the results of a ground survey of all known fur seal colonies from Smith to Elephant Islands from ... %) and San Telmo Islands (21%). Dead pups accounted for 1.37% of the total. A comparison with previous ...
Meeting Document : WG-EMM-02/51 : Author(s): M.E. Goebel (USA), V.I. Vallejos (Chile), W.Z. Trivelpiece, R.S. Holt (USA) and J. Acevedo (Chile)
-
The reliability of VHF telemetry data for measuring attendance patterns of marine predators: a comparison with Time Depth Recorder data
Abstract: VHF radiotelemetry data has been used for over thirty years to monitor the behavior ... patterns of otariid seals. These data have been used in a wide variety of ways, from characterizing the ... attendance patterns. Yet the accuracy of VHF data has never been appropriately evaluated. Our study compares ... -collected Time-and-Depth Recorder (TDR) data used as the ‘true’ measurement of time spent onshore. Within ...
Meeting Document : WG-EMM-15/P05 : Author(s): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs
-
Latitudinal variation of demersal fish assemblages in the western Ross Sea
February and March 2004 and 2008 in the Ross Sea, and around seamounts and islands just to the north at 66 ... °S. The distribution and abundance of 65 species collected in these surveys were examined to ... determine if demersal fish communities varied throughout the area, and what environmental factors might ... influence this. Species accumulation with sample frequency did not reach an asymptote, but the rate of new ...
Meeting Document : WG-FSA-10/P03 : Author(s): M.R. Clark, M.R. Dunn, P.J. McMillan, M.H. Pinkerton, A. Stewart and S.M. Hanchet
-
The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
approach for maintaining ecological relationships and providing for the recovery of depleted populations in ... food webs supporting fisheries is proposed. This paper addresses the following general questions for ... taking the ecosystem approach in managing fisheries: (i) how might fisheries impact incidentally on an ... ecosystem, (ii) what should be the conservation objectives for predators of fished species, and (iii) what ...
Meeting Document : WG-EMM-12/P04 : Author(s): A.J. Constable
-
Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area
throughout the CCAMLR Convention Area. There are seven known species in the genus, but more work on the ... taxonomy of the group is needed and the number of species is uncertain. The few biological studies ... published suggest a relatively fast growing, semelparous, life history with a maximum age of 11 years. The ... estimate of K from the growth function for specimens assumed to be M. evseenkoi is much higher than for ...
Meeting Document : WG-FSA-12/50 : Author(s): S. Parker, P. McMillan and P. Marriott (New Zealand)
-
Krill distribution variability and fishery conditions within the local ground of Subarea 48.3 in June 1991
characteristics variability were carried out within a local ground of Subarea 48.3 in the fleet operation area. It ... is shown that krill transport by wat4er flow across the fishing ground results in variation of fished ... krill aggregations distribution, and thus, in unstable indices of fishing vessels activity. During the ... the period of observations (29.05.91–03.06.19) at variable krill distribution characteristics due to ...
Meeting Document : WG-EMM-95/04 : Author(s): Kasatkina, S.M.
-
Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.1
with the other participants over the coming years in order to participate in the tagging program and ... achieve a robust stock assessment. The aim is to collect sufficient data to provide an advice on a catch ... /2016 developed under Conservation Measure 41-01. The biomass in the Division was estimated by research ... block during WG-FSA 2014 using CPUE x seabed analogy method. In the absence of an assessment using the ...
Meeting Document : WG-FSA-15/73 : Author(s): A. Rélot-Stirnemann (France)
-
Guidelines for fisheries-directed research addressing the Ross Sea region Marine Protected Area Research and Monitoring Plan
Abstract: Implementation of the Ross Sea region Marine Protected Area (CM 91-05) and the ... Members. Some of the research required will necessarily be implemented through CCAMLR approved fisheries ... in the Ross Sea region, research proposals will require robust experimental designs and ... collaborations among Members. Strategic decisions by the Scientific Committee and the Commission to prioritise ...
Meeting Document : WG-SAM-18/21 : Author(s): S. Parker and A. Dunn
-
The New Zealand toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2001/02
Abstract: Results from the 2002 season of the New Zealand toothfish fishery in Subarea 88.1 & ... . The catch for the 2002 season was almost double that for 2001, and CPUE was the highest for any year ... . The principal bycatch species continues to be the rattail Macrourus whitsoni, with skates ... , particularly Amblyraja georgiana, the only other significant bycatch. Author(s): S.M. Hanchet, P.L. Horn, M.L ...
Meeting Document : WG-FSA-02/38 : Author(s): S.M. Hanchet, P.L. Horn, M.L. Stevenson and N.W. McL. Smith (New Zealand)
-
Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
Abstract: Antarctic silverfish (Pleuragramma antarcticum) is a key link between plankton and the ... community of top predators in the shelf waters of the Ross Sea. In spite of their abundance and important ... species. A combined trawl and acoustic survey of silverfish was carried out on the western Ross Sea shelf ... during the New Zealand International Polar Year Census of Antarctic Marine Life research voyage on R.V ...
Meeting Document : WG-FSA-10/P04 : Author(s): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet