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Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program
Paper Title: Utilising data from ecosystem monitoring for managing fisheries: development of ... statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program Abstract / Description ... : A potential method is presented for combining data collected as part of the CCAMLR ecosystem ... monitoring program (CEMP) into a single index for each of predator, prey and environmental parameters. The ... system (predators, prey or physical environment) then the index needs to be robust against the loss of ... FROM ECOSYSTEM MONITORING FOR MANAGING FISHERIES: DEVELOPMENT OF STATISTICAL SUMMARIES OF INDICES ... A potential method is presented for combining data collected as part of the CCAMLR ecosystem ... monitoring program (CEMP) into a single index for each of predator, prey and environmental parameters. The ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 101–117 : Autor(es): de la Mare, W.K. and A.J. Constable
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
Paper Title: Changes in biomass of eight species of finfish around the South Orkney Islands ... (Subarea 48.2) from three bottom trawl surveys Abstract / Description: Stocks of finfish exploited around ... /90. The biomass of several species of finfish has been monitored through scientific bottom trawl ... surveys within the 500 m isobath of the South Orkney Islands, most recently by the Federal Republic of ... kg, 761 individuals) relative to other species. Most fish were found to the north and east of the ... OF EIGHT SPECIES OF FINFISH AROUND THE SOUTH ORKNEY ISLANDS (SUBAREA 48.2) FROM THREE BOTTOM TRAWL ... Correos 1373 Santa Cruz de Tenerife, Espafia Abstract Stocks of finfish exploited around the South ... biomass of several species of finfish has been monitored through scientific bottom trawl surveys within ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Autor(es): Jones, C.D., K.-H. Kock and E. Balguerías
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
Paper Title: Notes on the use of virtual population analysis for stock assessment of the mackerel ... Abstract / Description: Following on from the apparent failure of the CCAMLR Working Group on Fish Stock ... Assessment (WG-FSA) to satisfactorily assess in 1991 the status of the Champsocephalus gunnari population in ... -class (1 year olds in 1988), was quite robust, despite the use of various combinations of survey and ... indicative of either natural mortality or a loss of fish from the area by some other mechanism such as ... WG-FSA-92/27 NOTES ON THE USE OF VIRTUAL POPULATION ... ANALYSIS FOR STOCK AS.~ESSMENT OF THE MACKEREL ICEFISH, CHAMPSOCEPHALUS GUNNARI (LONNBERG, 19(6) IN ... failure of the CCAMLR Working Group on Fish Stock Assessment (WG-FSA) to satisfactorily assess in 1991 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Autor(es): Parkes, G.
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
Paper Title: Bias in the estimation of krill yield from using a deterministic formulation of the ... parameters and abundance of the stock being assessed. CCAMLR currently uses results from the krill yield ... effects of a specified long-term annual yield on (i) the probability of the spawning stock being reduced ... below a set proportion of the median pre-exploitation spawning biomass during a projection trial and (ii ... ESTIMATION OF KRILL YIELD FROM USING A DETERMINISTIC FORMULATION OF THE MEDIAN UNEXPLOITED SPAWNING BIOMASS ... . These models are used in order to account for uncertainty in the biological parameters and abundance of ... fisheries but can also be used for krill. The decision rules relate to the effects of a specified long-term ... annual yield on (i) the probability of the spawning stock being reduced below a set proportion of the ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 1–8 : Autor(es): Constable, A.J. and W.K. de la Mare
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Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys
Paper Title: Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from ... 1994 to 1997, Dr Eduardo L. Holmberg surveys Abstract / Description: The diet composition of the ... was analysed using frequency of occurrence (F%) and dietary coefficient (Q%) methods. Krill (Euphausia ... Georgia and Shag Rocks in the period investigated, except in 1994, when the order of importance of these ... CCAMLR Science, Vol. 5 (1998): 103-123 ANALYSIS OF THE ... DIET OF CHMPSOCEPHALUS GUNNARZ AT SOUTH GEORGIA IN LATE SUMMER FROM 1994 TO 1997, DR E D U R D O L ... 1248,1010 Buenos Aires Argentina Abstract The diet composition of the mackerel icefish (Champsocephalus ... gunnari) caught in CCAMLR Subarea 48.3 in late summer from 1994 to 1997 was analysed using frequency of ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Autor(es): Barrera-Oro, E., R. Casaux and E. Marschoff
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Seasonal and inter-annual variability in the distribution of Electrona carlsbergi in the southern Polar Front area (the area to the north of South Georgia is used as an example)
Paper Title: Seasonal and inter-annual variability in the distribution of Electrona carlsbergi in ... the southern Polar Front area (the area to the north of South Georgia is used as an example) Abstract ... of South Georgia Is between 49° to 54°S and 25° to 40°W. The area is within the Polar Frontal Zone ... inter-annual variability in distribution, density and biomass of the most abundant species of myctophids ... THE DISTRIBUTION OF ELECTRONA CARLSBERGI IN THE SOUTHERN POLAR FRONT AREA (THE AREA TO THE NORTH OF ... to 1989 VNIRO (USSR) conducted six trawl and acoustic surveys in the area to the north of South ... interannual variability in distribution, density and biomass of the most abundant species of myctophids ... concentrations throughout the year. Results of surveys showed that the distribution and behaviour of E ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 337–367 : Autor(es): Kozlov, A.N., K.V. Shust and A.V. Zemsky
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Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen Islands areas
Paper Title: Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen ... Islands areas Abstract / Description: The benefits of conservation measures are generally based on the ... rebuilding of the depleted stocks and improvement in yields. It is desirable that such measures be based on ... the expected rate of recovery relative to rates of fishing. A simulation model based on a ... ) SIMULATION OF RECOVERY RATES OF FISH STOCKS IN THE SOUTH GEORGIA AND KERGUELEN ISLANDS AREAS R.C ... . Hennemuth, K.D. Bisack and G. Duhamel (USA, France) Abstract The benefits of conservation measures are ... generally based on the rebuilding of the depleted stocks and improvement in yields. It is desirable that ... such measures be based on the expected rate of recovery relative to rates of fishing. A simulation ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 229-298 : Autor(es): Hennemuth, R.C., K.D. Bisack and G. Duhamel
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Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77-1986/87
Paper Title: Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77 ... the stocks of five fish species (Champsocephalus gunnari, Chaenocephalus aceratus, Pseudochaenichthys ... 1976/77-1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1 ... /6 of the area of the island shelf. Assessment results point to considerable variations in fish ... - 185 - SC-CAMLR-VI/BG/40 (WG-FSA-87/10) ANALYSIS OF ... CHANGES IN BIOMASS OF FISH STOCKS IN THE SOUTH GEORGIA AREA IN 1976/77-1986/87 M. Mucha and W ... stocks of five fish species (Champsocephalus gunnari, Chaenocephalus aceratus, pseudOchaenichthys ... seasons 1976;77-1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 185-211 : Autor(es): Mucha, M. and W. Ślósarczyk
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
Paper Title: Midwater trawl catchability as an aspect of a quantitative assessment of krill ... variable which depends on both the behavioural and distributional characteristics of the target species and ... trawl parameters. Reliability of biomass assessments will improve with better knowledge of trawl ... catchability and krill distribution patterns. A comparative analysis of trawl catchability for commercial ... OF A QUANTIT ATIVE ASSESSMENT OF KRILL BIOMASS CONDUCTED USING A TRAWL CENSUS SURVEY S.M ... distributional characteristics of the target species and trawl parameters. Reliability of biomass assessments ... will improve with better knowledge of trawl catch ability and krill distribution patterns. A ... comparative analysis of trawl catchability for commercial midwater trawls and small research trawls, in this ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Autor(es): Kasatkina, S.M.
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New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands
Paper Title: New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of ... part of the Kerguelen shelf during the 1989/90 to 1993/94 period provide new information on the stock ... of Champsocephalus gunnari. A quarterly program of ichthyoplanktonic and bottom trawl surveys over ... the inner shelf has enabled a new cohort of fish to be identified each year. However, annual ... SPAWNING, HATCHING AND GROWTH OF CHAMPSOCEPHALUS GUNNARI O N THE SHELF OF THE KERGUELEN ISLANDS G ... part of the Kerguelen shelf during the 1989/90 to 1993/94 period provide new information on the stock ... of Champsocephalus gunnari. A quarterly program of ichthyoplanktonic and bottom trawl surveys over ... the inner shelf has enabled a new cohort of fish to be identified each year. However, annual ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Autor(es): Duhamel, G