Search results
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INTERANNUAL SPATIAL VARIABILITY OF KRILL (EUPHAUSIA SUPERBA) INFLUENCES SEABIRD FORAGING BEHAVIOR NEAR ELEPHANT ISLAND, ANTARCTICA
Abstract: We investigate the influence of krill (principally Euphausia superba) patchiness on the ... foraging distributions of seabirds to understand how variation in krill influences patch dynamics between ... -transect surveys were used to map seabirds, and a combination of acoustic and net surveys was used to map ... krill. We measured patch size of krill and seabirds and elucidated how krill patch dynamics influence ...
Meeting Document : WG-EMM-08/P12 : Author(s): J.A. Santora, C.S. Reiss, A.M. Cossio and R.R. Veit
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Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony
Abstract: The diet of the Antarctic petrel Thalassoica antarctica was studied during two years at ... found in other diet studies. Estimates of food consumption for birds breeding at Svarthamaren (c ... . 250,000 pairs) indicate that the take approximately 6,600 tons of Crustaceans, 2,600 tons of fish and 485 ... tons of squid during the breeding season. Furthermore, their annual consumption is estimated to 34,800 ...
Meeting Document : WG-EMM-97/58 : Author(s): Røv, N., Lorentsen, S., Klages, N.
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Diet composition and observations on reproduction of Champsocephalus gunnari in Subarea 48.3 in March/April 1996, Dr Eduardo Holmberg survey
Abstract: The diet composition of the icefish Champsocephalus gumari caught in the Subarea 48.3 ... in March/April 1996 was analyzed using Frequency of occurrence (F%) and coefficient "Q" ... items, known as an important alternative food in years of krill scarcity, were ingested only ... higher than those reported for the 1991 and 1994 years of krill shortage. The analysis of the ovarian ...
Meeting Document : WG-FSA-96/28 Rev. 1 : Author(s): Marschoff, E., Barrera-Oro, E., Casaux, R.
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Review of the South Orkney Islands Southern Shelf (MPA Planning Domain 1, Subarea 48.2)
in 2009 (CCAMLR-XXVIII paragraph 7.1; CM 91-03) with the objective of contributing towards the ... conservation of biodiversity in Subarea 48.2, and to the development of a representative system of protected ... areas across the Convention Area. At the time of its adoption, the Commission agreed to review CM 91-03 ... suggest that the grounds for protection of the South Orkney Islands Southern Shelf as described in CM 91 ...
Meeting Document : WG-EMM-14/26 : Author(s): Delegation of the European Union
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Unmanned Aerial Vehicles based monitoring of indicator species populations on King George Island (Subarea 48.1)
study distribution and size of three Pygoscelis penguin species on King George Island (Subarea 48.1) in ... the austral summer 2014/15 season. During photogrammetric flights the high-resolution images of the ... penguin breeding colonies were taken. Obtained images were used for estimation of population size and ... compared with the results of measurements taken at the same time from the ground level. During expedition ...
Meeting Document : WG-EMM-15/48 : Author(s): M. Korczak-Abshire, A. Zmarz, R. Storvold, M. Rodzewicz, K. Chwedorzewska, A. Kidawa and A. Znój (Poland)
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Analysis of the krill fishery in Subarea 48.1 considering trawl fishing method used (2010–2016)
Abstract: An analysis of spatio-temporal variability of CPUE indices in the krill fishery in ... variability with account of the fishing method used is presented. Particular attention is paid to the fishery ... in the Bransfield strait, where the main fishery in Subarea 48.1 is concentrated The possibility of ... using the standardized CPUE indices as krill biomass density indices for monitoring the variability of ...
Meeting Document : WG-EMM-17/27 : Author(s): S. Kasatkina S. and L. Boronina
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Microbial study of toothfish tissue in Divisions 58.4.1 in 2014/15
Abstract: Dissostichus mawsoni, the Antarctic toothfish, is a local organism of the Southern ... Ocean. The fish is a member of the Notothenioidei, which lives in the sub-zero (-2 °C) continental shelf ... waters of Antarctica. The Antarctic toothfish are protected from freezing by the existence of antifreeze ... explore the bacterial population which is present in the tissues of Antarctic toothfish by using both ...
Meeting Document : WG-EMM-16/32 : Author(s): Delegation of the Republic of Korea
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Fishing of the Patagonian toothfish (Dissostichus eleginoides) by the Chilean fleet (1991/92) in the Subarea 48.3 (South Georgia Island) and proposed TAC for the 1991/1993 season
Georgia Island). From the end of December 1991 until the closing of the fishery on the 10th March 1992 ... , the fleet caught around 80% of the TAC set for this subarea. The catch and effort data and the ... the location of the hauls two separate fishing grounds could be clearly distinguished: the first one ... at the north of South Georgia Island, including Black and Shag rocks, and the second one at the South ...
Meeting Document : WG-FSA-92/24 : Author(s): P.A. Espina, M.A. Araya and V.V. Meniconi (Chile)
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Further development of coarse- and medium-scale spatially explicit population dynamics operating models for Antarctic toothfish in the Ross Sea region
program allows implementation of an aggregate movement model for use with large numbers of areas as a ... mortality), as well as movement processes defined as the product of a set of preference functions that are ... based on known attributes of spatial location. The operating models considered were single sex age ... spawning (based on GSI data), CPUE, and tag-release and tag-recapture observations. Estimates of parameters ...
Meeting Document : WG-FSA-12/44 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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The krill maturity cycle: a conceptual description of the seasonal cycle in Antarctic krill
Abstract: A long term study on the maturity cycle of Antarctic krill was conducted in a research ... temperature and food conditions, and the succession of female maturity stages and intermoult periods were ... observed. In all cases regression and re-maturation of external sexual characteristics were observed, but ... there were differences in length of the cycle and intermoult periods between the experimental conditions ...
Meeting Document : WG-EMM-06/23 : Author(s): S. Kawaguchi, T. Yoshida, L. Finley, P. Cramp and S. Nicol (Australia)