Résultats de la recherche
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CEMP cameras data validation experiment at the Galindez Island gentoo penguin (Pygoscelis papua) colonies
Abstract: The two seasons of the data validation experiment provided for pictures from time-lapse ... ) penguin colonies are discussed. During 2017/18 and 2018/19 seasons, biologists-winterers at Vernadsky ... -lapse camera data for both seasons. The standard deviation for each event varies from ±1 to ±3 days for ... responsibility for releasing documents: Ukraine ...
Meeting Document : WG-EMM-2019/59 : Auteur(s): P. Khoetsky, A. Dzhulai, V. Smagol, G. Milinevsky, I. Dykyy, A. Simon, M. Telipska, E. Dykyi, I. Parnikoza and L.Pshenichnov
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Draft: differences in the foraging strategies of male and female Adelie penguins
of breeding Adelie penguins were demonstrated at two widely separated locations over a number of ... years. Female penguins tended to make longer foraging trips than males, ranged greater distances more ... on fish throughout chick rearing. The importance of these results to monitoring programs such as the ...
Meeting Document : WG-EMM-95/46 : Auteur(s): Franchi, E., Kerry, K., Clarke, J.
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Classification of Southern Ocean krill and icefish echoes using Random Forests
two or more echosounder frequencies. For commonly used frequencies, however, the differences for krill ... underestimated when those methods are used for target identification. Random forests are an objective means for ... Abstract: Target identification remains a challenge for acoustic surveys of marine fauna ... are similar to those for many co-occurring fish species that do not possess swim bladders. At South ...
Meeting Document : WG-EMM-16/23 : Auteur(s): N. Fallon, S. Fielding and P. Fernandes
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IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX
confidence intervals for an index of relative importance (% IRIDC) of prey categories. Diet varied ... following year (2005). This may have been a result of mortality of age 2+ and 3+ fish, which were more krill ... dependent than 1+ fish. Younger fish appear to have survived, leading to an increase in the estimated ... significantly between years and age classes but there was little regional difference in diet. In general diet ...
Meeting Document : WG-FSA-08/29 : Auteur(s): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)
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Recent trends in numbers of four species of penguins at the Prince Edward Islands
pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... numbers of macaroni and southern rockhopper penguins at Marion Island decreased by about 30% and 70 ... %, respectively. In 2008/09, some 290 000 pairs of macaroni penguins bred at this island, mostly in two large ... considerable fluctuation in chick production in the 1990s. It was roughly estimated that on average 88% of king ...
Meeting Document : WG-EMM-10/P01 : Auteur(s): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper
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MODELLING ANTARCTIC KRILL: SCALE, MOVEMENT AND AGE‐STRUCTURE
‐year data on size compositions from net tows and total biomass from hydroacoustics or net tows are ... Abstract: The organization, example outputs, and future objectives of an integrated, age ... being developed in stages to incorporate different data sources. Model estimates are incremented for ... time of year in which the data were collected, with multiple surveys at different times within a year ...
Meeting Document : WG-EMM-11/43 Rev. 1 : Auteur(s): D. Kinzey, G. Watters and C. Reiss (USA)
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Preliminary assessment models of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B ... ), by including tag-recapture data for 2005–06 from New Zealand vessels. The updated assessment resulted ... parameters, and an alternative method of parameterising the tag-release data are also presented. Inclusion of ...
Meeting Document : WG-FSA-SAM-06/11 : Auteur(s): Dunn, A. & Hanchet, S.M.
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Population assessment of Patagonian toothfish in Subarea 48.4
Abstract: This paper presents an update of the assessment of toothfish (Dissostichus spp.) in ... Subarea 48.4. The Subarea is divided into two management regions and assessed using a CASAL assessment of ... D. eleginoides in the northern region and a simple Petersen biomass estimate derived for D ... addition of catch at age information for 2011, a minor change to the initial parameters of the selection ...
Meeting Document : WG-FSA-12/36 : Auteur(s): R. Scott (United Kingdom)
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BEACH DEBRIS SURVEY AT CAPE SHIRREFF, LIVINGSTON ISLAND, DURING THE ANTARCTIC SEASON 1996/97
produced on board can be stored, with the respective compartments with the international colour for plastic ... effort to accomodate on board an specific container to store the garbage produced in order to desembark ... articles/m2 in 1993/94 to 1.02 in 1994/95, 1.52 in 1995/96, and diminished to 0.46 in 1996/97. For the ... first time it was observed an important presence of pieces (708) of expanded polyestirene (PE) with a ...
Meeting Document : CCAMLR-XVI/BG/35 : Auteur(s): Delegation of Chile
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The CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean
Southern Ocean”, will synthesize the CAML biogeographic results on the basis of an unprecedented amount ... Abstract: Biogeographic information is of primary importance for monitoring biodiversity and ... biodiversity hotspots. At the end of five years of extensive biodiversity exploration and assessment by the ... ) south of 40°S. The hard copy version in large format will be extended by a dynamic online version on the ...
Meeting Document : CCAMLR-XXX/BG/11 : Auteur(s): Submitted by SCAR