Resultados de la búsqueda
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Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000
Paper Title: Characteristics of krill aggregations in the South Sandwich Islands subarea in ... January–February 2000 Abstract / Description: During the survey of Subarea 48.4 from 17 January to 1 ... characteristics of some 2 400 krill swarms detected in the study area were sized acoustically and are described in ... this paper. Results of comparisons of swarm parameters by area and season are given. The effect of ... not exceed 0.02 g m-3. Krill swarms were recorded in the upper 80 m depth layer. Sites with ... . Swarms remained in the upper pycnocline layer and/or above it, moving no deeper than the layer of cold ... . 9 (2002): 145–164 145 CHARACTERISTICS OF KRILL AGGREGATIONS IN THE SOUTH SANDWICH ISLANDS ... the survey of Subarea 48.4 from 17 January to 1 February 2000 it was observed that krill was present ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Autor(es): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky
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Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract ... / Description: This paper reviews Southern Ocean primary productivity within the framework of satellite remote ... sensing and the development of food-web models. The satellite ocean colour (chlorophyll) data record is ... described, from the Coastal Zone Colour Scanner (CZCS) in the late 1970s through to the Ocean Colour and ... were the areas of highest productiv- ity, and no sustained blooms occurred in waters deeper than 1 000 ... from a bloom trailing east off the north- ern tip of the Antarctic Peninsula. The Prydz Bay Table 2 ... , trailing off the peninsula, starts to contract. The Prydz Bay bloom is larger and more intense. Other ... Prydz Bay and other coastal blooms are in decline. The South Georgia bloom is smaller, as is the ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Autor(es): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
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Patagonian toothfish in international waters of the Southwest Indian Ocean (Statistical Area 51)
Paper Title: Patagonian toothfish in international waters of the Southwest Indian Ocean ... and Marion Islands and the Crozet Islands, outside EEZs and CCAMLR waters. A total of 57 hauls was ... from 53 to 1 158 kg. The northward distribution of D. eleginoides is closely related to the extension ... of the Sub-Antarctic Front, and especially the intermediate layer of sub-Antarctic water masses ... and discussion Catches No zero catches were taken during the fi shing experiment, D. eleginoides ... Deepwater Ridges of the Southern Indian Ocean. FAO Fisheries Circular, No. 991, Rome, FAO: 84 pp. Duhamel ... (2005): 207–214 207 PATAGONIAN TOOTHFISH IN INTERNATIONAL WATERS OF THE SOUTHWEST INDIAN OCEAN ... Ctra. San Andrés nº 45 Santa Cruz de Tenerife, España Email – luis.lopez@ca.ieo.es Abstract ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 207–214 : Autor(es): López Abellán, L.J
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Defining smaller-scale management units to further develop the ecosystem approach in managing large-scale pelagic krill fisheries in Antarctica
Paper Title: Defining smaller-scale management units to further develop the ecosystem approach in ... the principles and approach required for developing small-scale management units to take account of ... predators’ needs when managing the fishery for Antarctic krill. It provides a theoretical foundation for ... considering the scales of management units involving the integration of local populations of harvested species ... . 9 (2002): 117–131 117 DEFINING SMALLER-SCALE MANAGEMENT UNITS TO FURTHER DEVELOP THE ECOSYSTEM ... @aad.gov.au Abstract This paper discusses the principles and approach required for developing small-scale ... management units to take account of predators’ needs when managing the fi shery for Antarctic krill. It ... provides a theoretical foundation for considering the scales of manage- ment units involving the ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 117–131 : Autor(es): Constable, A.J. and S. Nicol
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
Paper Title: A composite recruitment index to describe interannual changes in the population ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... net hauls. Therefore, when the number of station net hauls is limited, bias is likely to be reduced if ... target net haul data can be included by using the composite recruitment index. This index is used to ... commercial fishery (Kawaguchi et al., 1998). However, to date there has been no information on the year-to ... spawning year, the status of 1993194 is less certain, because there is no datum for the RI estimation ... class structure observed in the Antarctic Peninsula and South Georgia. There is no recruitment data ... RECRUITMENT INDEX TO DESCRIBE INTERANNUAL CHANGES IN THE POPULATION STRUCTURE OF ANTARCTIC KRILL AT SOUTH ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Autor(es): Watkins, J.L
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The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters
Paper Title: The use of analysis of penguin stomach contents in simultaneous study of prey and ... sensitive to the statistical assumptions made during the analysis of data. The nested ANOVA method is ... proposed as being the correct approach for analysis because lack of independence between krill specimens ... found in the stomach of a given penguin prevents the pooling of krill lengths from different samples ... WG-CEMP-89/16 THE USE OF ANALYSIS OF PENGUIN STOMACH ... Size selectivity of krill by penguins is shown to be highly sensitive to the statistical assumptions ... made during the analysis of data. The nested ANOVA method is proposed as being the correct approach ... for analysis because lack of independence between krill specimens found in the stomach of a given ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Autor(es): Marschoff, E. and B. González
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Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
Paper Title: Intra-annual variability in the density of Antarctic krill (Euphausia superba) at ... profilers (300 kHz) and echo sounders (125 kHz) were deployed on moorings on- and off-shelf to the northwest ... = 64.2). A sinusoidal regression model (period = 52 weeks) with time as the independent variable ... explained 64% of the observed week-to-week variation. Estimates of krill density from moored instruments ... 2003 due to the presence of large icebergs at the site, and no data were obtained between 29 April ... -minute intervals. No thresholds were applied to the data prior to echo integration. Finally, all unfi ... . 14 (2007): 27–41 27 INTRA-ANNUAL VARIABILITY IN THE DENSITY OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA ... ) and echo sounders (125 kHz) were deployed on moorings on- and off-shelf to the northwest of South ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Autor(es): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
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An impact assessment framework for bottom fishing methods in the CAMLR Convention Area
Paper Title: An impact assessment framework for bottom fishing methods in the CAMLR Convention ... Area Abstract / Description: This paper presents a methodological framework to estimate the likely ... cumulative impact on fragile benthic organisms from bottom fishing activity. The approach has been designed ... preliminary assessment of bottom fishing impacts for the 2008/09 toothfish longline fishery. This paper ... impacts themselves on the assump- tion that impact reduction is desirable no matter what the actual shape ... have been no peer-reviewed studies based on actual observations of the effects of bottom longline ... ). Note that there is no assumption at this stage as to the extent or severity of the actual impact ... submerged floats connecting two separate lines (no impact additional to that of the standard set ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Autor(es): Sharp, B.R., S.J. Parker and N. Smith
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
Paper Title: Modelling catch and effort data using generalised linear models, the Tweedie ... distribution, random vessel effects and random stratum-by-year effects Abstract / Description: The current ... CCAMLR areas is to model the haul-by-haul ratios of catch to effort as the response variable in a ... standardised CPUE estimates and their precision can be obtained from the ‘fishing year’ parameter estimates ... (2004): 59–80 59 MODELLING CATCH AND EFFORT DATA USING GENERALISED LINEAR MODELS, THE TWEEDIE ... Division Channel Highway, Kingston 7050 Tasmania, Australia Email – steve.candy@aad.gov.au Abstract The ... eleginoides) for CCAMLR areas is to model the haul-by-haul ratios of catch to effort as the response variable ... time series of standardised CPUE estimates and their precision can be obtained from the ‘fi shing year ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Autor(es): Candy, S.G
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Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters
an example from the Antarctic Peninsula area and adjacent waters Abstract / Description: This paper ... examines the size structure of populations of E. superba in relation to their habitat, on the basis of an ... analysis of data collected by the author during the 1981 season in the region of the Antarctic Peninsula ... and the South Shetland Islands, as well as data collected by other researchers during FIBEX and data ... STRUCTURE DETERMINATION OF EUPHAUSIA SUPERBA DANA USING AN EXAMPLE FROM THE ANTARCTIC PENINSULA AREA AND ... ADJACENT WATERS V.A.Spiridonov (U.S.S.R.) Abstract This paper examines the size structure of ... populations of E. superba in relation to their habitat, on the basis of an analysis of data collected by the ... author during the 1981 season in the region of the Antarctic Peninsula and the South Shetland Islands ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Autor(es): Spiridonov, V.A.