Résultats de la recherche
-
Review of rattail and skate by-catch and analysis of rattail standardised CPUE from the Ross Sea toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
Abstract: Little is known about the bycatch of skates, rays and macrourids in the target longline ... fishery for toothfish in the Ross Sea. Following concerns about the accuracy of reporting of bycatch ... raised by the 2001 CCAMLR bycatch subgroup, the processes for recording bycatch in this fishery were ... reviewed and the accuracy of data recording was investigated. Current systems were considered to be ...
Meeting Document : WG-FSA-02/40 : Auteur(s): R.G. Blackwell and S.M. Hanchet (New Zealand)
-
Update to recruitment series for Patagonian toothfish in the Heard Island region
Abstract: The recent fish survey at in the vicinity of Heard Island in 2000 has provided ... estimates of recruitment for at least one new cohort (1996) and another estimate of the 1995 cohort. The ... older cohorts are likely to be distributed more widely than the shallow part of the Heard Plateau ... , consistent with the observations from 1999. A reanalysis of all survey data from the region has shown that ...
Meeting Document : WG-FSA-00/42 : Auteur(s): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
-
Seabird mortality in the Japanese tuna longline fishery around Australia, 1988–1995
Abstract: Large numbers of seabirds are killed each year within the Australian Fishing Zone (AFZ ... ) by Japanese longline vessels targeting tuna. In recent years the estimated rate of seabird bycatch in ... the AFZ has been in the order of 0.15 birds 1000 hooks, translating to mortalities of 1000-3500 birds ... observed hauled aboard the vessels. The observed seabird catch rate varies annually, seasonally and ...
Meeting Document : WG-FSA-98/31 : Auteur(s): N. Brothers, R. Gales and T. Reid (Australia)
-
An acoustic survey of Antarctic krill on the South Georgia shelf, CCAMLR Subarea 48.3, in January 1992
the opportunity was taken in 1992 to produce a krill biomass estimate as a by-product of a fish stock ... operating at 38 kHz and 120 kHz. The results have been analysed for all straight sections of track when the ... ship's speed exceeded 7 knots and when the ship was over the shelf around the main island of South ... Georgia. The appearances of echoes on echo charts were used to decide which echoes to include in krill ...
Meeting Document : WG-EMM-96/42 : Auteur(s): Everson, I., Goss, C.
-
REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA
in Area 48. Overall non-fishing debris items (mostly packaging items) have made up the majority of ... Bird Island, South Georgia over the last 10 years, but only small amounts from the other sites. Plastic ... . The most common entangling materials were plastic packaging bands, synthetic string/longline and ... fishing nets. The Wandering albatross has more debris reported from its colonies than any other species ...
Meeting Document : WG-IMAF-09/08 : Auteur(s): Secretariat
-
CONTINUING CCAMLR’S FIGHT AGAINST IUU FISHING FOR TOOTHFISH EXECUTIVE SUMMARY OF THE REPORT BY TRAFFIC INTERNATIONAL AND WWF AUSTRALIA
Abstract: Despite the continuous efforts of CCAMLR to fight Illegal, Unregulated and Unreported ... (IUU) fishing, there remains evidence of IUU activities in the Convention area. This paper is the ... with WWF Australia that presents a trade-based assessment of toothfish catch for the period of 2003 ... -2007 with a view to provide an indication of the extent of the IUU catch. The report highlights that in ...
Meeting Document : CCAMLR-XXVII/BG/38 : Auteur(s): Submitted by IUCN
-
Some considerations for the further development of statistical summaries of CEMP indices
Abstract: A potential method is presented for combining data collected as part of the CCAMLR ... ecosystem monitoring programme (CEMP) into a single index for each of the predator, prey and environment ... parameters. The proposed method is based on the usual theory of multivariate statistics and takes into ... account the covariance between parameters. The power of the statistical procedure recently adopted by WG ...
Meeting Document : WG-EMM-Stats-97/07 : Auteur(s): de la Mare, W.K.
-
Shifts in the demersal fish community of South Georgia
Abstract: The heavily exploited fish stocks of South Georgia have been declining since the early ... 1970's. Use of a non-parametric method revealed a significant change in this community from the ... 1986/87 survey to the 1987/88 survey. This change was the result of reductions in the abundance of ... Champsocephalus gunnari and Notothenia squamifrons, and the increased presence of Pseudochaenichthys georgianus ...
Meeting Document : SC-CAMLR-VII/BG/24 : Auteur(s): United States of America
-
Ocean acidification and the Southern Ocean
, including the Southern Ocean. The relative undersaturation of CaCO3 in the Southern Ocean suggests that ... organisms such as the pteropods that form the base of much of the Southern Ocean food chain. Orr et al (2005 ... ) predicted that under the Intergovernmental Panel on Climate Change (IPCC) IS92a warming scenario, which ... assumes “business as usual”- emissions leading to 778 ppm of CO2 in the atmosphere by 2100- aragonite will ...
Meeting Document : CCAMLR-XXIX/BG/24 : Auteur(s): ASOC Observer
-
A feedback approach to Ecosystem Based Management: model predictive control of the Antarctic krill fishery
Abstract: The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) aims ... to develop a feedback approach to aid Ecosystem Based Management (EBM) of the Antarctic krill fishery ... in the Southern Ocean. Feedback approaches in fisheries management usually include harvest control ... rules based on their predicted performance in a model of the controlled system. Here we use MPC to ...
Meeting Document : WG-EMM-12/19 : Auteur(s): S. Hill and M. Cannon (United Kingdom)