Résultats de la recherche
-
MODELLING ANTARCTIC KRILL: SCALE, MOVEMENT AND AGE‐STRUCTURE
time of year in which the data were collected, with multiple surveys at different times within a year ... ‐year data on size compositions from net tows and total biomass from hydroacoustics or net tows are ... being developed in stages to incorporate different data sources. Model estimates are incremented for ... 's capabilities are illustrated using 19 years of survey data collected by the U.S. AMLR Program ...
Meeting Document : WG-EMM-11/43 Rev. 1 : Auteur(s): D. Kinzey, G. Watters and C. Reiss (USA)
-
Distribution and diet of juvenile Patagonian toothfish on the South Georgia and Shag Rocks shelves (Southern Ocean)
from 4 annual trawl surveys (2003-06) around the island of South Georgia in the Atlantic sector of the ... prey were Antarctic krill and notothenid fish. The diet changed with size, with an increase in ... the four years surveyed. Most juveniles were caught on the Shag Rocks shelf to the NW of South Georgia ...
Meeting Document : WG-FSA-07/P4 : Auteur(s): M.A. Collins, K.A. Ross, M. Belchier, K. Reid. (Mar. Biol., 152: 135–147 (2007)).
-
Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... the 3-frequency method using the CCAMLR protocol for the period between 1996 and 2011 in both the ... long to average out differences among years. Author(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J ...
Meeting Document : SG-ASAM-12/04 : Auteur(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
-
Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... the 3-frequency method using the CCAMLR protocol for the period between 1996 and 2011 in both the ... long to average out differences among years. Author(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J ...
Meeting Document : SG-ASAM-15/03 : Auteur(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
-
Seabird by-catch by autoline vessels: do line setters increase the sink rate of integrated weight longlines?
m –1 lead core) longlines by some autoline vessels in the Kerguelen and Crozet Islands Patagonian ... . A trial was conducted in the Ross Sea to determine the effectiveness of line setters in increasing ... were identical, including in the first few metres of the water column where seabird interactions are ... depth of longlines for given distances astern. This increase in depth is minor and unlikely to result in ... with Løkkeborg (2000) who found that UW longlines set with a line setter in the Norwegian longline ... weight (IW) (50 g m–1 lead core) longlines by some autoline vessels in the Kerguelen and Crozet Islands ... sink rates. A trial was conducted in the Ross Sea to determine the effectiveness of line setters in ... setter were identical, including in the first few metres of the water column where seabird interactions ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 107–114 : Auteur(s): Robertson, G., J. Williamson, M. McNeill, S.G. Candy and N. Smith
-
High-resolution ocean modelling of the South Georgia and South Orkney Islands regions
will be used to generate a ~20 year time series of oceanographic flows and water mass properties, which ... over small scales of <10 km. Historically, these fine spatial scales have been poorly represented in ...
Meeting Document : WG-EMM-16/15 : Auteur(s): E. Young, E. Murphy and P. Trathan
-
The effect of temporal variability on power analysis predictions for Adélie penguin CEMP parameters at Béchervaise Island
ability of CEMP data to detect change. The effect size that should prompt a response if observed in a ... power analysis estimates results in a decreased level of power to detect a trend. Similar power analysis ... results are obtained for a fixed co-efficient of variation of the temporal variability SD in relation to ... to other parameters that are suitable for trend detection. The four CEMP parameters considered in ...
Meeting Document : WG-EMM-03/49 : Auteur(s): L.M. Emmerson and C. Southwell (Australia)
-
AMLR 2009/10 Field Season Report: objectives, accomplishments and conclusions
was greater this year than the last ten years. The production of penguin chicks decreased compared to ... characterizing the waters around the South Shetland Islands indicate that several water masses converge in the ... Survey in the South Shetland Islands, acoustic estimates of krill biomass were the lowest seen since 2006 ... estimates of krill abundance also decreased, for the second consecutive year, and recruitment indices were ...
Meeting Document : WG-EMM-10/P12 : Auteur(s): A. Van Cise (Editor)
-
Beach litter survey Signy Island, South Orkney Islands, 1992/93
. Comparison with the 1990/91 and 1991/92 litter surveys showed a dramatic drop in both the weight of debris ... recovered fell by 80% and the number of items recovered by 83% over the three year survey period. At the ... show a very encouraging decline in the incidence of marine debris. However, the reasons for the decline ... are unclear. It may be due to a reduction in fishing activity around the South Orkney Islands because ...
Meeting Document : CCAMLR-XII/BG/07 : Auteur(s): Delegation of United Kingdom
-
Baited Remote Underwater Video (BRUV) system to monitor Antarctic toothfish distribution and abundance: pilot study results and future design
alternative non-extractive methodology to expand the routine collection of data in areas not accessible by the ... in McMurdo Sound and Terra Nova Bay, and first results are reported. We propose some improvements of ... Members interested to take part in the data collection. Author(s): D. Di Blasi, S. Canese, E. Carlig, L ... abundance and distribution of the species. During the last three years, a pilot study has been carried out ...
Meeting Document : WG-FSA-18/62 : Auteur(s): D. Di Blasi, S. Canese, E. Carlig, L. Ghigliotti, S.J. Parker and M. Vacchi