Search results
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Proposal for an acoustic krill biomass survey in CCAMLR Subarea 48.1 in relation to the hydrological environment and in conjunction with carbon cycling and temperature adaptation experiments of krill and salps
Abstract: As part of the German contribution to Convention for the Conservation of Antarctic ... CCAMLR division 48.1 during April 2018. The survey will be part of a larger research cruise (PS112 ... ) investigating the role of krill and salps in Southern Ocean carbon cycling and the temperature adaptation ... capacities of both species in the context of climate change. Acoustic survey and physiological experiments ...
Meeting Document : WG-EMM-17/39 : Author(s): B. Meyer, L. Suberg, S. Fielding, O.R. Godø and C. Reiss
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Diet overlap among top predators at the South Orkney Islands, Antarctica
analyzed diet information on nine bird and two seal species collected in the austral summer from 1996 to ... 2000 at South Orkney Islands. Overall, the diet of most of the predators was mainly composed of krill ... , fish or penguins. The re-occurrence of prey among predators was intermediate and ranged from 25.3 to ... 36.7 and fish, krill and squid re-occurred most frequently. The re-occurrence of fish among predator ...
Meeting Document : WG-EMM-18/04 : Author(s): M.L. Bertolin and R. Casaux
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ANTARCTIC FUR SEAL PUP PRODUCTION AND POPULATION TRENDS IN THE SOUTH SHETLAND ISLANDS WITH SPECIAL REFERENCE TO SOURCES OF ERROR IN PUP PRODUCTION ESTIMATES
Abstract: This paper reports the results of a ground survey of fur seal colonies from in the ... confidence limits on pup production. Total pup production was 7,602 (±103) pups down 24.4% from the last ... census in 2001/02 (10,057 ±142 pups born). Dead pups accounted for 1.64% of the total. A comparison with ... previous censuses over a 20yr period (1987, 1992, 1994, and 1996) indicates the rate of increase in fur ...
Meeting Document : WG-EMM-PSW-08/14 : Author(s): M.E. Goebel (USA), D.E. Torres C. (Chile), A. Miller, J. Santora, D. Costa (USA) and P. Diaz (Chile)
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DEVELOPMENT OF A SPATIALLY EXPLICIT AGE-STRUCTURED STATISTICAL CATCH-AT-AGE POPULATION DYNAMICS MODEL FOR MODELLING MOVEMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
a preliminary development version of this model to Antarctic toothfish in the Ross Sea as an age and ... -based population age structure in a spatially explicit manner. The model is parameterised by both ... population processes (i.e., ageing, recruitment, and mortality), as well as movement processes defined as the ... designed to be flexible, allow for the estimation of both population and movement parameters based on local ...
Meeting Document : WG-SAM-08/14 : Author(s): A. Dunn and S. Rasmussen (New Zealand)
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
Abstract: The mackerel icefish (Champsocephalus gunnari) is a prominent member of the coastal ... fish fauna of the Seasonal Pack-ice Zone and the islands north of it. Separated into a number of stocks ... , its distribution ranges from the Scotia Arc region, namely South Georgia, in the Atlantic Ocean sector ... to the Kerguelen-Heard Plateau in the Indian Ocean sector. Mackerel icefish have been heavily ...
Meeting Document : WG-FSA-96/24 : Author(s): Everson, I., Kock, K.-H.
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Further development of a spatially explicit population dynamics operating model for Antarctic toothfish in the Ross Sea region
model for Antarctic toothfish over the entire Ross Sea region, for a medium scale spatial resolution ... (189 spatial cells) covering the Ross Sea region. The model was developed as a generalised Bayesian ... population dynamics model implemented using the Spatial Population Model software (SPM), and a single sex age ... appeared to broadly reflect the hypothesised spatial distribution of Antarctic toothfish, suggesting that ...
Meeting Document : WG-SAM-13/35 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Shifts in the demersal fish community of South Georgia
Abstract: The heavily exploited fish stocks of South Georgia have been declining since the early ... 1970's. Use of a non-parametric method revealed a significant change in this community from the ... 1986/87 survey to the 1987/88 survey. This change was the result of reductions in the abundance of ... Champsocephalus gunnari and Notothenia squamifrons, and the increased presence of Pseudochaenichthys georgianus ...
Meeting Document : SC-CAMLR-VII/BG/24 : Author(s): United States of America
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Plan of research program of the Ukraine in Subarea 48.2 in 2017 (third season)
Abstract: The third year research plan of Ukraine in subarea 48.2 by the fishing vessel SIMEIZ is ... provided. The survey design remains the same as in the second (2016) year. Ukraine proposes to divide the ... stock (the catch limit) in the researched area on two blocks – Northern and Southern, in order to reach ... maximum coverage of the subarea by the research stations. Author(s): L. Pshenichnov, S. Ajiumerov and D ...
Meeting Document : WG-SAM-16/23 : Author(s): L. Pshenichnov, S. Ajiumerov and D. Marichev
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Revised plan of research program of the Ukraine in Subarea 48.2 in 2017 (third season)
Abstract: The third year research plan of Ukraine in subarea 48.2 by the fishing vessel SIMEIZ is ... provided. The survey design remains the same as in the second (2016) year. Ukraine proposes to divide the ... stock (the catch limit) in the researched area on two blocks – Northern and Southern, in order to reach ... maximum coverage of the subarea by the research stations. Author(s): Delegation of Ukraine Title ...
Meeting Document : WG-FSA-16/49 : Author(s): Delegation of Ukraine
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By-catch in Australian fisheries in Divisions 58.5.2, 58.4.2 and 58.4.3 during the 2002/03 and 2003/04 fishing seasons
Abstract: This paper presents bycatch information for the Australian fisheries in Divisions ... 58.5.2, 58.4.2 and 58.4.3, with estimates of total removals by fishing ground for the 2002/2003 and 2003 ... /2004 seasons. Bycatch in the trawl fisheries was low, approximately 1 to 2% of the total catch (target ... plus bycatch). Bycatch in the longline fisheries was higher, ranging from 8% to 14% of the total catch ...
Meeting Document : WG-FSA-04/68 : Author(s): E. van Wijk and R. Williams (Australia)