Search results
-
Australian research on Antarctic bird and seal diets
Abstract: Many data on the diets of important vertebrate predator species in Prydz Bay and around ... , Euphausia superba forms a rather low proportion of the diet of most vertebrate predators. Euphausia ... crystallorophias and the fish Pleuragramma antarcticum are important in most diets, and many predators can switch ... between prey species. The use of these predators to monitor the state of prey populations is thus very ...
Meeting Document : SC-CAMLR-VII/BG/32 : Author(s): Delegation of Australia
-
Biology, distribution and abundance of Antarctic krill (Euphausia superba) and by-catch
most abundant size in the fishing area 58. The average sex ratio of male and female Euphausia superba ... the feeding of krill and availability of food in the area surveyed. Maturity stage IV (fully matured ... collected from 34 stations of fishing area 58 in Indian Ocean sector of Antarctic region between lat.57°53 ... Sampada for the study of biology, distribution and abundance. The samples were collected for a period of ...
Meeting Document : WG-EMM-98/37 : Author(s): A. Anrose, Z. Klusek, M.K.R. Nair and M. R. Bhoopendranath (India)
-
Have Antarctic toothfish returned to McMurdo Sound?
detected in the areas sampled. These findings highlight the importance of continued standardized monitoring ... Abstract: A dramatic reduction in catch rates of Antarctic toothfish in McMurdo Sound, Antarctica ... , has led to conclusions that the commercial bottom longline fishery for toothfish in the Ross Sea has ... for detecting the potential effects of fishing on the Ross Sea ecosystem. Author(s): S.J. Parker, S ...
Meeting Document : WG-FSA-15/P01 : Author(s): S.J. Parker, S. Mormede, A.L. DeVries, S.M. Hanchet and R. Eisert
-
Krill consumption by Adélie penguins in CCAMLR Divisions 58.4.1 and 58.4.2
Abstract: We estimate the total abundance of Adélie penguins foraging in Divisions 58.4.1 and ... 58.4.2 and provide preliminary estimates of krill consumed by breeding Adélie penguins in these Divisions ... breeding population than was evident from previous work. The population of breeding Adélie penguins was ... ) to March (end of moult)). We are currently extending the prey consumption model to estimate the ...
Meeting Document : WG-EMM-16/65 : Author(s): C. Southwell and L. Emmerson
-
Age-at-length of Patagonian toothfish from South Georgia
Abstract: To provide an age-length key for use in modelling the age structure of the Patagonian ... fisheries survey in 2000, estimates of the Von Bertalanffy parameters were L8 = 123.8, K = 0.10 and t0 =-2.1 ... toothfish stock around South Georgia, we used otoliths to estimate the age of a sample of 264 Patagonian ... toothfish (Dissostichus eleginoides) captured in the longline fishery. We used a thin section grinding ...
Meeting Document : WG-FSA-02/75 : Author(s): J. Ashford, M. Belchier, C. Jones and S. Bobko
-
Sources of variability associated with Adélie penguin CEMP parameters measured at Béchervaise Island, East Antarctica
Abstract: We examine the magnitude of a variety of sources of variability associated with CEMP ... parameters. The CEMP parameters considered in this paper include: A3: breeding population size, A1: arrival ... parameters at around 5-7% CV. The smallest source of variability was associated with measurement error ... although this source of variability is difficult to assess. The largest source of variability was related ...
Meeting Document : WG-EMM-03/48 : Author(s): L.M. Emmerson, C. Southwell, J. Clarke and K. Kerry (Australia)
-
Monitoring krill larvae at the Weddell-Scotia confluence
larvae, median stage and the proportion of different stages in the catch. Author(s): E. Marschoff, N.S ... detected at the Weddell Scotia Confluence due to the presence of upwelling of larvae completing their ... developmental ascent. A number of quantitative variables reflect this phenomenon. As the position of the ... to establish a monitoring programme aimed to evaluate the status of adult populations and recruitment ...
Meeting Document : WG-EMM-10/20 : Author(s): E. Marschoff, N.S. Alescio, D. Gallotti and G. Donini (Argentina)
-
Variability and predictability of Antarctic krill swarm structure
Abstract: Swarming is a fundamental part of the life of Euphausia superba, yet we still know very ... little about what drives the considerable variability in swarm shape, size and biomass. We examined ... swarms across the Scotia Sea in January and February 2003 using a Simrad EK60 (38 kHz, 120 kHz ... greater. Further sub-divisions of these types identified small and standard swarms within the type 1 group ...
Meeting Document : WG-EMM-10/P10 : Author(s): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper
-
The Weddell Sea MPA revisited: questions, comments and suggestions
the Weddell Sea MPA proposal tabled to CCAMLR in 2016 by the delegation of the European Union and its ... decisions made during the Weddell Sea MPA planning process, and discuss these concerns in the context of the ... Member States. We present results from Marxan and other analyses conducted for the purpose of evaluating ... aspects of the Weddell Sea MPA planning process which were integral to the development of the proposal ...
Meeting Document : WG-EMM-17/42 : Author(s): M. Bristow and O.R. Godø
-
Informe preliminar sobre un viaje de pesca de merluza negra (Dissostichus eleginoides) del B/P Viarsa I, en el Océano Indico oriental (Área Estadística 57) – Abril–junio 2002
”, in the eastern Indian Ocean (FAO Statistical Area 57). The fishing trip was performed from the 13 of ... in the Grade 4 of gonadic maturity (C, D, E fishing zones). The A and B zones corresponded with the ... Muraenolepis spp., grenadier Macrourus spp., and skates of the Rajidae Family were identified in stomach ... Abstract: This paper describes and studies the very first data about the fishery of the toothfish ...
Meeting Document : WG-FSA-02/67 : Author(s): H. Nion y O.D. Pin (Uruguay)