Résultats de la recherche
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Sexing of adult Adélie penguins by discriminant analysis of morphometric measurements
Paper Title: Sexing of adult Adélie penguins by discriminant analysis of morphometric ... measurements Abstract / Description: Discriminant analysis of eight morphometric measurements was used to ... determine the sex of Adélie penguins. A sample of 46 adult birds was taken for measurement from the breeding ... population at Stranger Point (King George/25 de Mayo Is., South Shetland Islands). The sex of each bird had ... WG-CEMP-90n SEXING OF ADULT ADELIE PENGUINS BY ... DISCRIMINANT ANALYSIS OF MORPHOMETRIC MEASUREMENTS lA. Scolaro*, Z.B. Stanganelli**, H. Gallelli* and D.F ... . Vergani** * ** Abstract Discriminant analysis of eight morphometric measurements was used to ... determine the sex of Adelie penguins. A sample of 46 adult birds was taken for measurement from the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 543–549 : Auteur(s): Scolaro, J.A., Z.B. Stanganelli, H. Gallelli and D.F. Vergani
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Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000
Paper Title: Maximum entropy reconstructions of krill distribution and estimates of krill density ... Entropy (MaxEnt) reconstructions of krill distribution and estimates of mean krill density within two ... survey boxes (dimensions 80 km × 100 km) north of South Georgia. The reconstructions were generated from ... . Krill densities had previously been determined at approximately 0.5 km intervals along each of the ten ... Cambridge CB3 0ET, United Kingdom Abstract This paper presents Maximum Entropy (MaxEnt) reconstructions of ... ). This paper reports the results of MaxEnt reconstructions of the distributions of Antarctic krill in ... thank N. Williamson, P. Gasiukov and A. Garrett for helpful comments on a draft version of this paper ... ): 91–100 91 MAXIMUM ENTROPY RECONSTRUCTIONS OF KRILL DISTRIBUTION AND ESTIMATES OF KRILL DENSITY ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Auteur(s): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins
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A preliminary assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea based on data from predators
Paper Title: A preliminary assessment of the stock of the ommastrephid squid Martialia hyadesi in ... target species. It is likely, therefore, that exploitation of the sub-Antarctic ommastrephid species ... Martialia hyadesi; will be attempted in the future. This squid is an important component of the diet of ... several species of albatross and the southern elephant seal and is probably taken in significant ... SC-CAMLR-IX/BG/13 A PRELIMINARY ASSESSMENT OF THE STOCK ... OF THE OMMASTREPHID SQUID MARTIALIA BY ADESI IN THE SCOTIA SEA BASED ON DATA FROM PREDATORS· P.G ... exploitation of the sub-Antarctic ommastrephid species Martialia hyadesi will be attempted in the future. This ... squid is an important component of the diet of several species of albatross and the southern elephant ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 479–480 : Auteur(s): Rodhouse, P.G.
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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Paper Title: Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by ... acoustic surveys Abstract / Description: Acoustic surveys carried out in the summer and autumn of 1987 ... -1989 estimated the biomass of myctophids in the Atlantic sector of the Southern Ocean between 48° and ... 56° and from 8° to 48°W to be approximately 1.7x10 6 tonnes. Over the greater part of the surveyed ... WG-FSA-90/19 BIOMASS OF MYCTOPHIDS IN THE ATLANTIC ... SECTOR OF THE SOUTHERN OCEAN AS ESTIMATED BY ACOUSTIC SURVEYS A.A. Filin, K.V. Gorchinsky and V.M ... . Kiseleva* Abstract Acoustic surveys carried out in the summer and autumn of 19g7 -19g9 estimated the ... biomass of myctophids in the Atlantic sector of the Southern Ocean between 4go and 56° and from go to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Auteur(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva
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The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical Divisions 58.4.2 and 58.4.3 from 1988 to 1990. Results of acoustic surveys
Paper Title: The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical ... Divisions 58.4.2 and 58.4.3 from 1988 to 1990. Results of acoustic surveys Abstract / Description: Since ... of krill resources in the central part of the Indian Ocean sector of the Antarctic (CCAMLR ... Statistical Divisions 58.4.2 and 58.4.3). Results of surveys conducted from 1988 to 1990 are discussed in the ... ). Results of surveys conducted from 1988 to 1990 are discussed in the paper. It was found that the increase ... 1990 are presented in the paper. 2. MATERIALS AND METHODS Data on survey areas, spacing of survey ... WG-KRILL-90/17 THE STATUS OF KRILL (EUPHAUSIA SUPERBA ... DANA) RESOURCES IN CCAMLR STATISTICAL DIVISIONS 58.4.2 AND 58.4.3 FROM 1988 TO 1990. RESULTS OF ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 163–173 : Auteur(s): Bibik, V.A. and V.N. Yakovlev
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
Paper Title: Analysis of variability of krill size and fish by-catch in the Japanese krill ... size of scientific observer data collected on Antarctic krill commercial fishing vessels, the ... Bayesian model. The models were composed of multistage cluster units (i.e. year, subarea, vessel, cruise ... variability in the size structure of the krill population, which is presumably derived from large variability ... In the Antarctic, there is much concern about the impact of climate change on biodiversity, species ... dynamics and spatial distribution of Antarctic krill (Euphausia superba), stock abundance estimates from ... CCAMLR Scientific Committee noted the importance of investigating the potential impact of climate ... change on krill recruitment variability, and agreed that a full review of the influence of recruit- ment ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Auteur(s): Okuda, T. and M. Kiyota
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Experimental evaluation of the effectiveness of weighting regimes in reducing seabird by-catch in the longline toothfish fishery around South Georgia
Paper Title: Experimental evaluation of the effectiveness of weighting regimes in reducing ... of experiments was carried out in February 1999 at South Georgia (Subarea 48.3) to examine the ... effects of different weighting regimes on the incidental mortality of birds caught on longlines fishing ... for toothfish (Dissostichus spp.). Three regimes were examined, with weights of 4.25, 8.5 and 12.75 kg ... rates for longlines in the Antarctic (SC-CAMLR, 1998). This paper reports the results of such ... results is presented later in the paper (Table 4). No empirical measurements of line sink rates were ... EVALUATION OF THE EFFECTIVENESS OF WEIGHTING REGIMES IN REDUCING SEABIRD BY-CATCH IN THE LONGLINE ... , School of Mines Prince Consort Road London SW7 2BP, United Kingdom A.D. Black Marine Resources ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 119–131 : Auteur(s): Agnew, D.J., A.D. Black, J.P. Croxall and G.B. Parkes
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Beyond MSY: a consideration of definitions of management objectives
Paper Title: Beyond MSY: a consideration of definitions of management objectives Abstract ... management under the assumptions of a simple population model and simple objectives. This paper explores ... / Description: The concept of ‘Maximum Sustainable Yield’ (MSY) has provided a useful guideline for resource ... different guidelines under more realistic population models, taking account of the objectives set out in ... . They point out that, (using the terms of this paper), MNR would probably be better estimated by ... Everson for productive discussions and for comments on drafts of this paper. 1- ~ I!..l r I ... - 299 - WG-CSD-87/12 BEYOND MSY : A CONSIDERATION OF ... DEFINITIONS OF MANAGEMENT OBJECTIVES J .A. Gulland (United Kingdom) Abstract The concept of "Maximum ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Auteur(s): Gulland, J.A.
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Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) from a trawl survey of the South Georgia shelf in June–July 1985
Paper Title: Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari ... ) from a trawl survey of the South Georgia shelf in June–July 1985 Abstract / Description: A trawl ... survey of the distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) in South ... juvenile trawl of 13.6 m. The size range of juvenile icefish collected was 82–146 mm. Catches were the ... ABUNDANCE OF JUVENILE ICEFISH (CHAMPSOCEPHALUS GUNNARI) FROM A TRAWL SURVEY OF THE SOUTH GEORGIA SHELF IN ... JUNE-JULY 1985 V.A. Boronin, G.P. Zakharov, V.P. Shopov (U.S.S.R.) Abstract A trawl survey of ... the distribution and relative abundance of juvenile icefish (Chamsocephalus gunnari) in South ... juvenile trawl of 13.6 m. The size range of juvenile icefish collected was 82-146 mm. Catches were the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 55-63 : Auteur(s): Boronin, V.A., G.P. Zakharov and V.P. Shopov
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Genetic variations and population structure of krill from the Prydz Bay region of Antarctic waters
Paper Title: Genetic variations and population structure of krill from the Prydz Bay region of ... are derived from a single interbreeding population. Note: The full text of this paper is published ... Antarctic waters Abstract / Description: Samples of Antarctic krill E. superba from six locations near ... Prydz Bay were analysed electrophoretically to detect genetically-based protein variation. Analyses of ... POPULATION STRUCTURE OF KRILL FROM THE PRYDZ BAY REGION OF ANTARCTIC WATERS C.M. MacDonald, R. Williams ... and M. Adams (Australia) Abstract Samples of Antarctic krill E. superba from six locations near ... Prydz Bay were analysed electrophoretically to detect genetically-based protein variation. Analyses of ... allele distributions at four polymorphic loci indicate no evidence of significant heterogeneity, a ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 271-273 : Auteur(s): MacDonald, C.M., R. Williams and M. Adams