Search results
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PREDICTING SPECIES DISTRIBUTIONS FROM MUSEUM AND HERBARIUM RECORDS USING MULTI-RESPONSE MODELS FITTED WITH MULTIVARIATE ADAPTIVE REGRESSION SPLINES
Abstract: Current circumstances — that the majority of species distribution records exist as ... of species distributions — mean that scientists and conservation managers seek to develop robust ... lack of reliable information about sites where species are absent. Here we test two approaches for ... overcoming these difficulties, analysing a range of data sets using the technique of multivariate adaptive ...
Meeting Document : WS-VME-09/P02 : Author(s): Elith, J., Leathwick, J.
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Reports on abundance and biological information on toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2011/12 season
during the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch (excluding tagged and released ... fish) of Dissostichus eleginoides was 28.3 tonnes in the survey area in 70 longline sets, contributing ... 91.3 % to the total fish catch (31 tonnes). Mean CPUEs of D. eleginoides was in the SSRUs were 6.7 ... indiv. / km (CV = 70.0%) in terms of number and 48.3 kg / km (CV = 79.1%) in terms of weight. The mean ...
Meeting Document : WG-SAM-12/16 : Author(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)
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Krill distribution and biomass variability within Subarea 48.3 in June 1991
Abstract: Temporal and spatial variability of krill distribution characteristics was investigated ... aggregations occurred a s fields of small swarms whose spatial distribution characteristics (size and density ... of swarms, swarm field density, number of swarms per mile) varied considerably from tach to tack ... within each survey. The maximum horizontal extension of swarms was 120 m, although about 70% of swarms ...
Meeting Document : WG-KRILL-93/35 : Author(s): S.M. Kasatkina, E.N. Tymokhin, P.P. Fedulov and K.E. Shulgovskiy (Russia)
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KRILL FISHERY BEHAVIOUR IN THE SOUTHWEST ATLANTIC
Abstract: 10 years worth of recent finescale haul-by haul krill data were used to characterize ... behaviour of krill fishery. Analysis of travel distance in relation to catch level revealed a pattern that ... . However, this pattern only holds for operations by Japan. Preferred level of catch by Japan derived ... ). Other nations do not have a preference for an upper limit of catch. Locations of operations were very ...
Meeting Document : WG-EMM-08/39 : Author(s): S. Kawaguchi (Australia)
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A generalized discriminant for sexing fulmarine petrels from external measurements
birds to predict the sex of unknown individuals in field studies. Geographic variation in size and shape ... often limits the predictive value of a discriminant function to the population from which it was derived ... . Specific discriminant functions for populations of five species of fulmarine petrels (Northern Fulmar ... , Daption capense; and Snow Petrel, Pagodroma nivea) assigned 81 to 98% of birds in the samples to the ...
Meeting Document : WG-CEMP-94/24 : Author(s): J.A. van Franeker and C.J.F. ter Braak (The Netherlands)
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Medium-term research plan for the Ross Sea toothfish fishery
Abstract: The aim of this paper is to review the management of the Ross Sea toothfish fishery and ... of the Convention. The paper focuses primarily on Antarctic toothfish, as catches of Patagonian ... summarising the management and operation of the fishery up to and including the 2012/13 fishing year. This ... includes the 3-year experiment from 2005/06 to 2007/08, the further development of the CCAMLR tagging ...
Meeting Document : WG-FSA-14/60 : Author(s): Delegations of New Zealand, Norway and the United Kingdom
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Beach debris survey – Main Bay, Bird Island, South Georgia, 2005/06
Abstract: During the sixteenth year of standardised beach surveys of man-made debris at Bird ... Island, South Georgia, a total of 544 items were collected, the highest number of debris collected since ... 101% more during summer, a mass increase of 1.19kg overall (29%). For the third consecutive year ... , nylon line was absent from Bird Island, an encouraging result after the peak of 546 pieces in 1995/96 ...
Meeting Document : SC-CAMLR-XXVI/BG/16 : Author(s): Delegation of the United Kingdom
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Reporting procedures for the continuous fishing method
Abstract: Information about catch and effort from the fishing fleet is vital for evaluation of ... the management of krill. The continuous trawling method requires adapted reporting procedures compared ... to traditional trawling. The present reporting procedure of 2-hour intervals has demonstrated ... extending reporting frequency to 6-hour intervals to remove some of the methodological negative impacts on ...
Meeting Document : WG-EMM-17/48 : Author(s): O.R. Godø and T. Knutsen
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Beach debris survey - Main Bay, Bird Island, South Georgia 1994/95
Abstract: The fifth year of survey of beach debris at Main Bay, Bird Island reported a 3-fold ... ). Debris accumulated throughout the summer accounted for 33% of the total (three times the summer ... proportion in 1993/94). Of the 67% of debris occurring during the winter, 43 % occurred during July. Nylon ... line, comprising 80% of debris, was mainly identical to material used in the long-line fishery, as ...
Meeting Document : CCAMLR-XV/BG/04 : Author(s): Delegation of the United Kingdom
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Warp strike observations
Abstract: This report contains an analysis of data on seabird trawl-warp strike collected by ... summer of 2004 – 2005. The aim of the work was to test a new protocol for quantifying warp-strikes and to ... probability of warp strikes occurring for small and large birds. The protocol was designed for use by non ... -specialist observers, to provide a robust and objective assessment of warp strike occurrence. The key results ...
Meeting Document : WG-FSA-05/40 : Author(s): E. Abraham (New Zealand)