Search results
-
Diet composition of Champsocephalus gunnari in Subarea 48.3, Dr Eduardo Holmberg survey, February/ March 1994
Abstract: The diet composition of the icefish Champsocephalus gunnari caught in the Subarea 48.3 ... in February/March 1994 was analyzed using the frequency of occurrence (%) method. Krill (Euphausia ... Georgia, in parallel with the virtual absence of mysids and Thysanoessa spp.. Krill was available for fish ... in common levels, equivalent to those of previous years (e.g. 1985, 1992). However, high proportions ...
Meeting Document : WG-FSA-94/27 : Author(s): E. Barrera-Oro, R. Casaux and A. Roux (Argentina)
-
COMPARING CEMP INDICES TO INFORM FEEDBACK MANAGEMENT OF THE ANTARCTIC KRILL FISHERY
to adjust activity of the Antarctic krill fishery based on the state of krill-dependent predators is ... a recognized goal of the CCAMLR. We suggest that progress toward a feedback management approach can ... population can be assessed by measuring trends in the difference between the observed states of a “treatment ... ” and a “control” population. As the states of these monitored populations change relative to each other ...
Meeting Document : WG-EMM-11/25 : Author(s): J.T. Hinke and G.M. Watters (USA)
-
A spatial multi-species operating model of the Antarctic Peninsula krill fishery and its impacts on land-breeding
Abstract: An updated version of the Spatial Multi-species Operating Model (SMOM) of krill ... advice regarding the subdivision of the precautionary catch limit for krill among 15 small-scale ... management units (SSMUs) in the Scotia Sea, to reduce the potential impact of fishing on land-based predators ... penguin and seal predators; and 3) Addition of an alternative movement model based on the results from the ...
Meeting Document : WG-SAM-07/12 : Author(s): É.E. Plagányi and D.S. Butterworth (South Africa)
-
Detailed distribution of krill fishing around South Georgia
Abstract: The distribution of kri!! harvesting effort and associated catch rates has previously ... only been available to the scientific community in the form of sub-area or fine-scale(0.5 ° latitude by ... 1 ° longitude) recorded statistics. Earlier analyses of these data have shown this was a shelf-break ... fishery over much of the Scotia Sea. Although these statistics give a general idea of where the fishery ...
Meeting Document : WG-EMM-96/64 : Author(s): Parkes, G., Everson, I., Trathan, P.N., Murphy, E.J.
-
A sentiment analysis of online content containing Antarctic krill fishing search terms
Abstract: The sentiment of online content containing Antarctic krill fishing and related search ... terms 12 was analysed to evaluate public perception of the fishery, as a consideration in management 13 ... decisions. The Antarctic krill fishery is managed by the Commission for the Conservation of 14 Antarctic ... combination of recent increases in catches and perceived 16 negative environmental impacts of fishing for ...
Meeting Document : WG-EMM-17/18 : Author(s): J. Barrett, K. Reid and J. Jabour
-
Revised continuation proposal of a multi-Member longline survey on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b in 2018/19 by Japan and France
Abstract: Japan and France revised a plan to continue to investigate the populations of ... Japan so that selectivity and catch rates can be standardized across the vessels and impacts of ... depredation be minimized. Additional outcomes of the research relate to documenting the degree of depredation ... distribution, relative abundance, and life history of bycatch species. The plan represents a continuation of ...
Meeting Document : WG-FSA-18/44 : Author(s): Delegations of Japan and France
-
Results of the groundfish survey carried out in CCAMLR Subarea 48.3 in January 2010
vessel. Catch-weighted length frequencies of mackerel icefish indicated that although 3+ sized fish ... mean biomass of 52,329 tonnes was estimated for mackerel icefish, with a lower 1-sided 95% CL of 24,334 ... and low availability of krill to mackerel icefish in the area (evidenced by dietary analysis) in 2009 ... , this increase in biomass was unexpected. The importance of krill in the mackerel icefish diets was ...
Meeting Document : WG-FSA-10/38 : Author(s): R.E. Mitchell, M. Belchier, S. Gregory, L. Kenny, J. Nelson, J. Brown and L. Feathersone (UK)
-
Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob & Lena Banks for the years 1989/1990 to 2012/13
Abstract: I made five sensitive runs of CASAL models for stock status assessments of Dissostichus ... eleginoides in research block C in Division 58.4.4 b on the assumption of constant year class strength and no ... addition, proportion mature for ages was calculated on the assumption of logistic curve fitting for the ... proportion of maturity index with stage 2+ and incorporated in the models. The median MPD estimates of the ...
Meeting Document : WG-SAM-14/15 : Author(s): K. Taki (Japan)
-
Integrated analyses of circumpolar climate interactions and ecosystem dynamics in the Southern Ocean (ICED)
the increasing need to develop integrated circumpolar analyses of Southern Ocean ecosystems. The long ... -term goal of ICED is to develop a coordinated circumpolar approach to understand climate interactions ... , and the development of management procedures. CCAMLR community scientists have been instrumental in ... developing this initiative, and a key aim of ICED is to link with CCAMLR scientists to develop management ...
Meeting Document : WG-EMM-06/26 : Author(s): E.J. Murphy (United Kingdom), E. Hofmann (USA) and R. Cavanagh (United Kindom)
-
Distribution of mackerel icefish by size-group at South Georgia
Abstract: The depth distribution of C. gunnari was investigated with data from 9 groundfish ... of 8 depth strata with mean depths of 112, 137, 165, 185, 208, 230, 257 and 308 m. Fish were divided ... into size groups representative of age-classes. Kruskal-Wallis tests on log-transformed median ... abundance (number of fish km?2) indicated that depth of maximum abundance increased as the size of the fish ...
Meeting Document : WAMI-01/16 : Author(s): A.W. North and I. Everson (United Kingdom)