Résultats de la recherche
-
Performance and geometry of the FP-120 trawl used during the UK 1993/94 fish stock assessment survey around South Georgia, Subarea 48.3
Abstract: Methods for the calculation of the horizontal opening (swept area) of a bottom trawl ... are discussed. Details of the Scanmar trawl monitoring equipment used for making in situ measurements ... of horizontal opening and headline height of the FP-1 20 trawl during the 1993/94 UK fish stock ... assessment survey around South Georgia on the MV Cordella are provided. Empirical equations are derived for ...
Meeting Document : WG-FSA-94/23 : Auteur(s): G. Pilling and G. Parkes (United Kingdom)
-
The Use of Penguin Stomachal Contents for the Simultaneous Study of Prey and Predator Parameters
Abstract: Penguins selectivity for krill size is shown as highly sensitive to the statistical ... assumptions made in the analysis of data. Nested designs are proposed as the correct approach because lack of ... independence between krill found in the stomach of a given penguin prevents the pooling of krill lengths from ... different samples. Samples taken at Bahía Esperanza are used to illustrate the different approaches. A ...
Meeting Document : WG-CEMP-89/16 : Auteur(s): E. Marschoff and B. González (Argentina)
-
Results of research into distribution and status of stocks of target species in the Convention Area – Atlantic, Indian and Pacific Ocean sectors of the Antarctic
Abstract: The USSR has carried out coordinated fisheries research in Antarctic since 1961. The ... results of more than 130 research cruises are summarised according to the three major sectors: the ... Atlantic Sector, the Indian Sector and the Pacific Sector. For each particular sector the review contains ... , • particulars of bioproductivity cycle. The Atlantic Sector has be en studied more thoroughly. The biology and ...
Meeting Document : SC-CAMLR-III/INF. 10 : Auteur(s): USSR Delegation
-
Warming effects in the Western Antarctic Peninsula Ecosystem: the role of population dynamic models for explaining and predicting penguin trends
Abstract: The Western Antarctica Peninsula and Scotia Sea ecosystems appear to be driven by ... . The Adélie (Pygoscelis adeliae). Chinstrap (P. antarctica) and Gentoo (P. papua) penguins appear to be ... influenced by the inter-annual variability in the sea-ice extent and krill biomass. In this paper we ... developed simple conceptual models for decipher the role of climate and krill fluctuations on the population ...
Meeting Document : WG-EMM-12/18 : Auteur(s): M. Lima and S.A. Estay (Chile)
-
Proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016–2017
Abstract: A research proposal to continue the southern Ross Sea sub-adult toothfish survey for ... the next two years, 2016–2017, is presented. The survey will continue to focus primarily on estimating ... the relative abundance of sub-adult (<110 cm TL) toothfish in the core strata (A, B, C) in SSRUs ... 88.1J and 88.1L. This is a continuation of the time series of CCAMLR-sponsored research surveys of these ...
Meeting Document : WG-SAM-15/45 : Auteur(s): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
-
Results of the 2015 multi-Member longline survey for toothfish in the northern Ross Sea region (Subarea 88.2 SSRUs A–B) and proposal for 2016 operations
Abstract: The first year of a two-year and multi-member research survey using standardised ... longline gear to sample toothfish populations was carried out in the northern areas (60°‑ 66° S) of SSRUs ... 88.2A–B. The sampling strategy and data collection adhered to standards set in CM 41-10 (2014). A total ... . Age composition of the catch as predicted by the spatial population model was similar to that observed ...
Meeting Document : WG-FSA-15/32 : Auteur(s): S.J. Parker, R.J.C. Currey (New Zealand), M. Söffker, C. Darby (United Kingdom), O. Godø (Norway) and A. Petrov (Russia)
-
Revised proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016 and 2017
Abstract: A research proposal to continue the southern Ross Sea sub-adult toothfish survey for ... the next two years, 2016 and 2017, is presented. The survey will continue to focus primarily on ... estimating the relative abundance of sub-adult (<110 cm TL) toothfish in the core strata (A, B, C) in ... of the time series of CCAMLR-sponsored research surveys of these strata carried out from 2012–2015 ...
Meeting Document : WG-FSA-15/34 : Auteur(s): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
-
Monitoring variability and change in the plankton communities of the Scotia Sea through Continuous Plankton Recorder surveys
Abstract: The northern regions of the Scotia Sea demonstrate notable variability in environmental ... conditions, particularly in the location of the Polar Front. This has a strong influence on patterns of ... species. The long-term impact of environmental variability on plankton species composition and abundance ... has been monitored through conducting a series of Continuous Plankton Recorder (CPR) tows in the South ...
Meeting Document : WG-EMM-16/29 : Auteur(s): G.A. Tarling, M.Z. Wootton, D.G. Johns, T.D. Jonas, E.J. Murphy and P. Ward
-
Analysis of the longline fishery data in the Ross Sea (SSRUs 881B, C and G)
Abstract: The analysis of the toothfish fishery data in the northern part of the Ross Sea (SSRU ... 88.1 B, C and G) was performed using haul-by-haul data from the CCAMLR database for the period 1997 ... -2015. The variability of catch per haul (kg) and CPUE (kg/1000 hooks) depending on the hauling ... possible presence of number of high CPUE and catches, which are outside the upper limit of confidence ...
Meeting Document : WG-FSA-16/14 : Auteur(s): S. Kasatkina
-
Results of the seventh Ross Sea shelf survey to monitor abundance of Antarctic toothfish in the southern Ross Sea, January 2018, and notification for research in 2018/19
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey would be a useful input into the Ross Sea stock assessment model. In ... this paper we provide results of the seventh annual survey in the time series. The objectives of this ... survey included monitoring sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the ...
Meeting Document : WG-SAM-18/10 : Auteur(s): D. Stevens, X. Fu, S. Mormede and S. Parker