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A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey
Paper Title: A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across ... : A probabilistic Bayesian Maximum Entropy (MaxEnt) technique was used to estimate the abundance of ... Survey of Area 48 (CCAMLR-2000 Survey) and to map the density distribution of krill across the survey ... area. Density values for the unsurveyed off-transect portions of the survey area were inferred, and ... outcome of the roll of two dice, even though the value on each die is completely random, because there ... QuAntified BAyesiAn MAxiMuM entropy estiMAte of AntArctic Krill ABundAnce Across the scotiA seA And in ... Ecology Research Group Gatty Marine Laboratory University of St Andrews Fife KY16 8LB, United Kingdom ... Email – bgh@st-and.ac.uk S.F. Gull Astrophysics Group Cavendish Laboratory University of Cambridge ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Autor(es): Heywood, B.G., A.S. Brierley and S.F. Gull
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Characteristics of krill swarms from Prydz Bay
Paper Title: Characteristics of krill swarms from Prydz Bay Abstract / Description: The ... CCAMLR.AUS dataset available to the Subgroup on Survey Design was derived from a survey of Prydz Bay ... inter-swarm length were calculated for swarms of euphausiids encountered along a 78 km transect over the ... hours (north of 67°51 '38"S) and the loss of resolution that this resulted in. Resolution is also lost ... available. The loss of data on krill swarms shallower than 25 m is also a prc'Jem, particularly as many of ... WG-KRILL-91/7 CHARACTERISTICS OF KRILL SWARMS FROM ... Subgroup on Survey Design was derived from a survey of Prydz Bay, Antarctica, in December 1990. Swarm ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Autor(es): Agnew, D.J. and I.R. Higginbottom
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Spawning locations of mackerel icefish at South Georgia
Paper Title: Spawning locations of mackerel icefish at South Georgia Abstract / Description ... : Historical information on the distribution of spawning and larval mackerel icefish (Champsocephalus gunnari ... data from commercial fisheries and research surveys. It is concluded that there is strong evidence of ... inshore spawning at South Georgia during April within and close to the bays on the north side of the ... of each bay (North, 1990; White, 1998). Additional sampling was undertake11 within Cumberland East ... Cumberland East Bay during January 1987 gave a density of larvae of around one per cubic metre (North and ... Channichtl~yidae within krill swarms east of SouthGeorgia. Acta Ickthyol, et Piscnt., 13 (1): S11 ... LOCATIONS OF MACKEREL ICEFISH AT SOUTH GEORGIA I. Eversonm, A.W. North, A. Paul, R. Cooper and N.C ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Autor(es): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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Management and uncertainty: the example of South Georgia
Paper Title: Management and uncertainty: the example of South Georgia Abstract / Description ... : Decisions on fishery management are often made with some degree of uncertainty in scientific advice. Such ... to consider ways in which CCAMLR can improve its ability to take decisions in the face of uncertainty ... . From an examination of Articles IX 2(f) and XV 2(e, d) of the CCAMLR Convention it follows that a ... is the loss of potential catch from other species. The working group's report indicates that these ... would rebuild that stock, and allow fishing to be re-opened before there would be any loss of long ... . ) - 341 - WG-CFSA-86/13 THE EXAMPLE OF SOUTH GEORGIA Abstract Decisions on fishery management are ... often made with some degree of uncertainty in scientific advice. Such uncertainty is unlikely to be ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 341-353 : Autor(es): Gulland, J.A.
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The survivorship of rays discarded from the South Georgia longline fishery
Paper Title: The survivorship of rays discarded from the South Georgia longline fishery Abstract ... season in Subarea 48.3. Capture depth had a consistently significant influence on the mortality of skates ... ) and the sex of rays also had some small influence on survivorship. Discard survivorship was 75% in ... the line at the sea surface, so as to maximise their chances of survival. Results from this experiment ... (2004): 155–164 155 THE SURVIVORSHIP OF RAYS DISCARDED FROM THE SOUTH GEORGIA LONGLINE FISHERY M ... . Endicott and D.J. Agnew Renewable Resources Assessment Group Imperial College, Royal School of Mines ... season in Subarea 48.3. Capture depth had a consistently signifi cant infl uence on the mortality of ... conditions) and the sex of rays also had some small infl uence on survivorship. Discard survivorship was 75 ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Autor(es): Endicott, M. and D.J. Agnew
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Physical data used in space averaging: Trophic modelling of the Ross Sea
. Bradford-Grieve and S.M. Hanchet. 2010. A balanced model of the food web of the Ross Sea, Antarctica ... Physical data used in space averaging: Trophic modelling of the Ross Sea M.H. Pinkerton, M.J.M. Williams ... National Institute of Water and Atmospheric Research Ltd (NIWA), Private Bag 14901, Wellington 6021, New ... beginning of the food web are strongly influenced by the extent of ice cover and its seasonal trajectory ... . The data used in estimation of various model parameters are presented below. 2. Study region ...
Document : Site Section: Publications
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
Paper Title: Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the ... Ross Sea spanning the 2000–2009 fishing seasons. A characterisation of the oocyte developmental cycle ... of D. mawsoni shows that once development begins, oocytes grow and accumulate at the cortical alveoli ... least a 6–12 month period, resulting in a developed group of oocytes accumulating at the final ... to severe loss of mass (both somatic and gonad). Comparing the ogives between males and females ... gametogenesis and sexual cycles of six noto- thenioid fishes from East Antarctica. Polar Biol., 11 (8): 615–621 ... - AND AGE-AT-SPAWNING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA S.J. Parker ... National Institute of Water and Atmospheric Research (NIWA) Ltd PO Box 893 Nelson, New Zealand Email ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Autor(es): Parker, S.J. and P.J. Grimes
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The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)
(Indian Ocean sector of the Southern Ocean) Abstract / Description: Patagonian toothfish (Dissostichus ... recently with longliners. This is the oldest fishery targeting D. eleginoides in the Indian Ocean sector of ... local overfishing. The expansion of the bathymetric range of the fishery to increasingly deeper waters ... distribution, timing and area of spawning, and movements between geographical sectors) on the adult section of ... suffers from a loss of older animals; the fish- ing effort is then concentrated on still younger fish ... PaTagonian TooThfish (Dissostichus eleginoiDes) fishery in The Kerguelen islands (indian oCean seCTor of ... . This is the oldest fishery targeting D. eleginoides in the Indian Ocean sector of the Southern Ocean ... . The expansion of the bathymetric range of the fishery to increasingly deeper waters seems to have ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Autor(es): Lord, C., G. Duhamel and P. Pruvost
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Long-term monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
Paper Title: Long-term monitoring of krill recruitment and abundance indices in the Elephant ... for the Elephant Island area with regard to the representativeness of the study area (60°-62 o 30´S ... interannual variability of krill recruitment is confirmed by the present analysis. Results are compared for ... an analysis of variance. File: 02siegel-etal.pdf ... the area (Siegel, 1988). To the east of Elephant Island these various discrete size groups are ... Peninsula to the east; often they are found over the northern shelf of the Peninsula in southern ... the deep basins east of the Bransfield Strait where juvenile krill dominate. However, preliminary ... MONITORING OF KRILL RECRUITMENT AND ABUNDANCE INDICES IN THE ELEPHANT ISLAND AREA (ANTARCTIC PENINSULA) V ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 19–35 : Autor(es): Siegel, V., W. de la Mare and V. Loeb
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Is the attempt to estimate the biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited
Paper Title: Is the attempt to estimate the biomass of Antarctic fish from a multi-species survey ... already heavily fished at the beginning of the 1970s. The closure of the fishery for this species in 1985 ... was one of the first conservation measures adopted by CCAMLR. Fish biomass within a CCAMLR subarea or ... part of a subarea is commonly estimated from surveys that target a number of species, including N ... catches (>1 000 kg/30 min) were taken over the shelf to the east-northeast of South Georgia in the ... Elephant Island to the east of Seal Rocks in 1985 (Figure 3c). This concentration consisted of fi sh 34 ... east of Seal Rocks in February 1985, when fi shing was no longer in its heyday, consisted of an ... Science, Vol. 11 (2004): 141–153 141 IS THE ATTEMPT TO ESTIMATE THE BIOMASS OF ANTARCTIC FISH FROM A ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 141–153 : Autor(es): Kock, K.-H., M. Belchier and C.D. Jones