Résultats de la recherche
-
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 ... composite index of krill abundance (SC-CCAMLR-VIII, 1989) were derived for two surveys from these data sets ... . In addition, the data suggest that the abundance of krill in the Elephant Island area can change ... survey data suggested characteristic distribution pattern scales of 1.7 and 4 n.mile. Estimates of a ...
Meeting Document : WG-Krill-94/14 : Auteur(s): R.P. Hewitt (USA), V. Marín (Chile) and D. Demer (USA)
-
Using ecosystem monitoring data to detect impacts
Paper Title: Using ecosystem monitoring data to detect impacts Abstract / Description: The ... using monitoring data with no control sites. These methods assess either (i) the expected probability of ... Antarctic fur seal pup production data from Bird Island. This data series includes a known non- fisheries ... of the Antarctic Peninsula krill fishery and its impacts on land- breeding predators. Document WG ... ECOSYSTEM MONITORING DATA TO DETECT IMPACTS S.L. Hill, J. Forcada, P.N. Trathan and C.M. Waluda British ... paper discusses a range of methods for inferring such impacts using monitoring data with no control ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Auteur(s): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
-
An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Paper Title: An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and ... an enormous amount of data on Southern Ocean (SO) zooplankton, mostly on their distribution with a ... minority addressing rate processes. This review aims to summarise these data and show where it resides, to ... , distribution and feeding. Second, advice is provided on the uses, strengths and limitations of zooplankton data ... Science, Vol. 19 (2012): 171–218 171 AN OVERVIEW OF SOUTHERN OCEAN ZOOPLANKTON DATA: ABUNDANCE ... data on Southern Ocean (SO) zooplankton, mostly on their distribution with a minority addressing rate ... processes. This review aims to summarise these data and show where it resides, to assist SO food-web ... and feeding. Second, advice is provided on the uses, strengths and limitations of zooplankton data as ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Auteur(s): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
-
An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data
(CCAMLR Division 58.4.3b) based on fine-scale catch and effort data Abstract / Description: In 2006, the ... fine-scale catch and effort data held by CCAMLR for BANZARE Bank, as well as descriptive analyses of ... biological data submitted by scientific observers on board vessels in the fishery. Results of a Leslie ... depletion analysis of stratified catch and effort data indicate that there is strong evidence for depletion ... of fish- ing grounds and low level of data coverage avail- able for an exploratory fishery of this ... data recorded for total catch weight, 21 had no data recorded for total number of fish caught, and the ... on fine-sCAle CAtCh AnD effort DAtA J.P. McKinlay, D.C. Welsford, A.J. Constable and G.B. Nowara ... of fine-scale catch and effort data held by CCAMLR for BANZARE Bank, as well as descriptive analyses ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Auteur(s): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara
-
Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone
-lived species such as toothfish cannot be inferred from length-frequency data alone Abstract ... about using unstandardised catch rate data have led to a desire to draw inferences about stock status ... and fishing mortality from length-frequency data alone. In this paper, a number of length-based stock ... status and fishing mortality for long-lived fish species such as Patagonian toothfish (Dissostichus ... notification of intention to fish, measures requiring data collection, and decision rules for setting pre ... -frequency composition by generally re- moving larger fish. And because length-frequency data can be ... seasonal structure in fish otoliths or scales. But dis- secting length-frequency data into several compo ... by a number of studies, length-frequency data of fish stocks are strongly influenced by parameters ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Auteur(s): Ziegler, P.E., D.C. Welsford and A.J. Constable
-
Status of the FIBEX acoustic data from the west Atlantic
Abstract: Data from the FIBEX acoustic survey in the West Atlantic sector have been re-examined ... Holmberg, Odysee and Walther Herwig. While there is an error factor due to the combination of data ... collected at 50kHz (Walther Herwig survey) with data collected at 120 kHz (all other vessels), it is ... concluded that this does not materially affect on the estimated biomass. The data from the Profesor ...
Meeting Document : WG-KRILL-93/31 : Auteur(s): P.N. Trathan and I. Everson (United Kingdom)
-
Preliminary report on biological observations and exploratory fishing data collected in the South Georgia area during the 1985/86 cruise of MT Carina
-going fish stock monitoring program conducted by the Sea Fisheries Institute, Gdynia. Codends of two ... Paper Title: Preliminary report on biological observations and exploratory fishing data collected ... in the South Georgia area during the 1985/86 cruise of MT Carina Abstract / Description: A fish ... mesh sizes (47 and 60 mm) were used with a bottom trawl of 32 m head rope. Catch data were collected in ... , the average degree of their stomach fullness stayed at grade 3. Fish stomachs were filled with krill ... BIOLOGICAL OBSERVATIONS AND EXPLORATORY FISHING DATA COLLECTED IN THE SOUTH GEORGIA AREA DURING THE 1985 ... /1986 CRUISE OF MT CARINA K. Kreft, J. Szynaka Poland Abstract A fish survey in South Georgia ... waters was undertaken from November 1985 to January 1986 as a part of the on-going fish stock ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 65-97 : Auteur(s): Kreft, K. and J. Szynaka
-
Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island data set
data set Abstract / Description: In the vicinity of the northern tip of the Antarctic Peninsula, the ... -Scotia Confluence in the Bransfield Straits is associated with abundant krill populations. It is ... THE SIEDLECKI JANUARY 1987, SOUTH SHETLAND ISLAND DATA SET Arnold L. Gordon Abstract I n the ... (1986). Comiso and Sullivan (1986) compare passive microwave data from satellite with field ... In 1986/87 the RN Professor Siedlecki obtained oceanographic data within the waters surrounding ... Discovery data of the 1920's and '30's also shows the invasion of Pacific deep water into the Bransfield ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 161-184 : Auteur(s): Gordon, A.L.
-
Report of an examination of the acoustic data from RV Eduardo L. Holmberg collected during the FIBEX study
Abstract: Data from the Eduardo L Holmberg FIBEX survey have been re-examined for incorporation ... : Report of an examination of the acoustic data from RV Eduardo L. Holmberg collected during the FIBEX ... into the BIOMASS Database in the approved standardised format. The results indicate the krill were ...
Meeting Document : WG-KRILL-93/20 : Auteur(s): I. Everson (United Kingdom) and A.O. Madirolas (Argentina)
-
Developing the Secretariat’s data management systems
Description / Abstract: The CCAMLR Secretariat’s data management systems provide the secure ... infrastructure and repository for CCAMLR data which are submitted by CCAMLR Members to support the policy ... development of structural and data elements of the enterprise data model, data warehouse, quality assurance ... , reference data, data extracts and metadata, and the appraisal of candidate systems for automated loading of ... new method for linking tagging data from recaptured and released fish in the DWH. This linking ... purpose such as the estimation of local biomass in data-poor fisheries (see WG- FSA-16/27 which solicits ... presented for consideration by CCAMLR and may contain unpublished data, analyses, and/or conclusions ... subject to change. Data in this paper shall not be cited or used for purposes other than the work of the ...
Document : Site Section: The Organisation