Resultados de la búsqueda
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Predicting distribution and relative abundance of mid-trophic level organisms using oceanographic parameters and acoustic backscatter
Abstract: Data on the distribution and abundance of mid-trophic level organisms (MTLOs) in the ... mesopelagic zones, using sea surface temperature, time of day (day/night) and depth. The resulting models ... predicted backscatter reasonably well in the Pacific sector of the SO, and in an independent dataset in the ... Indian sector of the SO. Our predictive models may provide a tool for inferring abundance and ...
Meeting Document : WG-EMM-18/P07 : Autor(es): P.C. Escobar-Flores, R.L. O’Driscoll and J.C. Montgomery
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Habitat preferences of Adélie and chinstrap penguins during pre-moult
Abstract: In order to understand and mitigate for the potential impacts of anthropogenic ... phase of the annual cycle. We show that Adélie penguins have an affinity to forage and moult on sea-ice ... to moult. However, habitat models aimed to predict the preferred foraging habitats of penguins during ... understand the distribution and foraging behaviour of penguins during certain stages of the life-cycle, and ...
Meeting Document : WG-EMM-18/P12 : Autor(es): V. Warwick-Evans, M. Santos and P.N. Trathan
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Development of the Southern Ocean Continuous Plankton Recorder survey
to Antarctic waters when the Australian Antarctic Division initiated a survey of the Southern Ocean ... on RSV Aurora Australis south of Australia and west to Mawson. The objectives are to study regional ... patterns, as well as the annual abundance and distribution of krill larvae. The survey covers a large area ... from 60°E to 160°E, and south from about 48°S to the Antarctic coast—an area of more than 14 million ...
Meeting Document : WS-BSO-07/P4 : Autor(es): Hosie, G., M. Fukuchi and S. Kawaguchi
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Nesting behaviour of the icefish Chaenocephalus aceratus at Bouvetøya Island, Southern Ocean (CCAMLR Subarea 48.6)
blackfin) icefish Chaenocephalus aceratus that constitute the first substantive evidence of egg brooding ... and parental care by species of the family Channichthyidae. These novel observations are enriched by ... descriptions of the seafloor community that is impacted by fish nesting. Given the vulnerability of spawning ... recruitment to adult fish populations, we argue that appropriate management of icefish fisheries must exclude ...
Meeting Document : WG-FSA-04/26 : Autor(es): H.W. Detrich III, C.D. Jones, S. Kim (USA), A.W. North (United Kingdom), A. Thurber (USA) and M. Vacchi (Italy)
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ESTIMATING THE NUMBER OF PRE- AND INTERMITTENT BREEDERS ASSOCIATED WITH THE BÉCHERVAISE ISLAND ADÉLIE PENGUIN POPULATION
Abstract: The size of two of the inaccessible (non-breeding) components of the Adélie penguin ... a series of mark-recapture analyses and some simple population modelling techniques. Author(s): L ... . Emmerson and C. Southwell (Australia) Title: ESTIMATING THE NUMBER OF PRE- AND INTERMITTENT BREEDERS ...
Meeting Document : WG-EMM-PSW-08/08 : Autor(es): L. Emmerson and C. Southwell (Australia)
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Abundance of Patagonian toothfish (D. eleginoides) at Macquarie Island estimated from tagging studies during 1995/96 fishing season
presents an analysis of a tag-recapture experiment carried during the Macquarie Island fishery for this ... the tags being released at various times throughout the season, and the effects of the removals by ... obtained for the pre-fishing abundance of the population in the season of 996 000 fish. However, this is ... adjusted to 901 000 fish if a small number of recovered but unreported tags are taken into account. Author ...
Meeting Document : WG-FSA-96/39 : Autor(es): de la Mare, W., Williams, R.
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An iterative model to construct an age-length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
Abstract: Traditional calculation of catch age composition estimate requires that the age-length ... is capable of providing biased estimates of age distribution. By using the iteration algorithm is ... with the aplication of a single age-length key to all monthly length distribution using the nonlinear ... different from the one obteined by use of traditional method Author(s): H. Robotham V. and Z. Young U ...
Meeting Document : WG-FSA-92/23 Rev. 1 : Autor(es): H. Robotham V. and Z. Young U. (Chile)
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Re-organisation of WG-FSA Report
task was to prepare a number of draft fishery reports for consideration by WG-FSA-SAM. This paper ... restructure the WG-FSA report. In early 2004, the extend and nature of the work required was developed in ... consultation between the Conveners of WG-FSA and WG-IMAF, and the Chair of the Scientific Committee ... Everson to develop certain elements of the restructure (see SC CIRC 04/11 and 04/16). Dr Everson’s first ...
Meeting Document : WG-FSA-SAM-04/06 : Autor(es): CCAMLR Secretariat
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation
-recapture data were generated for 12 years of fishing. Two alternative estimation models were programmed in ... R. Both use the same Poisson likelihood for annual number of recaptures by age class, and both model ... the age-structured population for each fishing year by annual recursive use of difference equations ... realistic. In simulation studies of multiple years of releases, both the BODE and CCODE models gave accurate ...
Meeting Document : WG-SAM-10/11 Rev. 1 : Autor(es): S.G. Candy (Australia)
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Research program on resource potential and life cycle of Dissostichus species from the Subarea 88.2 A in 2015–2018
implementation of the previous research program took place in 2010-2012 fishing seasons and investigate resource ... potential and life cycle of Dissostichus species within the eastern part of the Ross Sea over shelf and ... continental slope within the Subarea 88.2 A. The present document is a new edition of the CCAMLR Document WG ... ): Delegation of the Russian Federation Title: Research program on resource potential and life cycle of ...
Meeting Document : WG-FSA-15/27 : Autor(es): Delegation of the Russian Federation