Search results
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Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions
Abstract: The upper-arm of the length-dependent fishing selectivity function for trawlers fishing ... for Patagonian toothfish around Heard Island (Division 58.5.2) was modelled as the exponential of a ... from commercial operations of each of trawlers and longliners fishing concurrently for 3 seasons ... assuming that, for the upper range of lengths, fish are fully selected by longliners but not by trawlers ...
Meeting Document : WG-FSA-06/35 : Author(s): S.G. Candy (Australia)
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Fish Heaven: a Monte Carlo, spatially explicit single species fishery model for the testing of parameter estimation methods
basic features of standard fish modeling with a number of optional extras. It was designed within an ... object oriented framework to allow for the possible extension in a number of directions. In particular it ... was designed with the view of testing the efficacy of different statistical sampling regimes given ... various plausible spatial structures of fish stock. The model has a simple age and space structured ...
Meeting Document : WG-FSA-00/36 : Author(s): I. Ball and A. Constable (Australia)
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Report of the Workshop for the International Coordinated Survey in conjunction with CCAMLR-2000 Survey
Abstract: Vessels from Japan, Republic of Korea, Peru and the USA had participated in the conduct ... of five acoustic/oceanographic surveys from late December 1999 and to early March 2000 in conjunction ... %), 39.5 g m-2 (CV 15.2 %) and 43.0 g m-2 (CV 14.1 %) over a nine-week period. Maps of biomass density for ... each of the surveys are presented, and examination of these maps suggests three consistent area of high ...
Meeting Document : WG-EMM-01/68 : Author(s): Delegations of Japan, Rep. of Korea, USA and Peru
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Fatty acid analysis to infer diet of Antarctic toothfish caught in February 2012 in the southern Ross Sea
south of SSRUs 881.J and 881.L in the southern Ross Sea, their lipid composition was determined and ... compared tolipid profiles of fish and invertebrate species taken as bycatch in the fishery or collected ... from stomachs of toothfish. Stable carbon and nitrogen isotope ratios were also determined to further ... identify feeding relationships between these species. The aim of this study was to establish the ...
Meeting Document : WG-FSA-12/61 : Author(s): I. Yeon, H.-S. Jo, C. Lim (Republic of Korea), S.M. Hanchet (New Zealand), D.-W. Lee and C.-K. Kang (Republic of Korea)
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A risk management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems (VMEs) are avoided. Due to the high ... levels of uncertainty surrounding both the evidence of VME presence and the consequences of interaction ... with different types of gear, a risk management framework is proposed, similar to that which has been ... used successfully by IMAF to minimise the effects of longline fishing mortality on seabirds. The aim of ...
Meeting Document : WG-EMM-08/37 : Author(s): K. Martin-Smith (Australia)
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Analysis of spatial and temporal structure in long-term krill fishery in the Area 48 and its relation to climate variability
Abstract: The authors analyzed the influence of climate changes on space-time dynamic of ... Antarctic krill fishery in the Area 48 using the CCAMLR fishery data and time series of ААО induces ... (Antarctic Oscillation Index) as the indication of climate variability. Here we used the methods of the ... integrated ecosystem assessment used by ICES and the modern de-nosing data methods. The influence of climate ...
Meeting Document : WG-EMM-12/50 : Author(s): P. Gasyukov and S. Kasatkina (Russia)
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Analysis and modelling of the Soviet Southern Ocean krill fleet
Paper Title: Analysis and modelling of the Soviet Southern Ocean krill fleet Abstract ... / Description: The first part of this document contains an analysis of data pertaining to the Soviet krill ... fleet. The data base consists of the records of 12 different cruises by 8 different research vessels ... between 1981 and 1984. The data are analyzed according to operational characteristics of the fishing ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 127–235 : Author(s): Mangel, M.
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Pre-spawning and spawning biology of the Patagonian toothfish, Dissostichus eleginoides, around South Georgia (Subarea 48.3)
Abstract: Samples gathered from research expeditions of the longliners Medvezhy (April-June 1986 ... ) as well as Maksheevo and Mirgorod (June-July 1992) have produced new data on the biology of the ... reproductive part of the Dissostichus eleginoides population in Subarea 48.3. Analysis and synthesis of these ... data have established the bathymetric distribution patterns for different size-groups of toothfish ...
Meeting Document : WG-FSA-92/13 : Author(s): I.N. Konforkin and A.N. Kozlov (VNIRO, Moscow, Russia)
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Bycatch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)
Abstract: A final report of scientific observations conducted aboard the Japanese krill fishing ... vessel Chiyo Maru No. 2 was presented to the first meeting of WG-EMM. The WG-EMM welcomed the report but ... . This manuscript presents a brief reanalysis of the bycatch data collected onboard the Chiyo Maru No. 2 ... ; means and variances are calculated according to the methods of Aitchison (1955) and Pennington (1983 ...
Meeting Document : WG-FSA-95/40 Rev. 1 : Author(s): Watters, G.
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An attempt to derive a composite index of abundance from acoustic surveys and fishery data
Abstract: Maps of krill (Euphausia superba) density derived from acoustic survey data and the ... distribution of fishing effort in the Chilean krill fishery indicate an area of high krill density wrapping ... around the northwestern end of Elephant Island during the austral summer of 1992. In this area, the ... distribution of catch-per-fishing-time and krill density (measured acoustically) show similar forms. Search ...
Meeting Document : WG-Krill-94/14 : Author(s): R.P. Hewitt (USA), V. Marín (Chile) and D. Demer (USA)