Search results
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Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region
Paper Title: Spatially explicit population dynamics models for Antarctic toothfish in the Ross ... Sea region Abstract / Description: Population modelling software was developed that captures the ... dynamics of spatial heterogeneity of the population along with age structure, movement and reproductive ... models were developed for the Antarctic toothfish (Dissostichus mawsoni) population in the Ross Sea ... -restricted model). Note that no observations of toothfish outside the area historically fished exist ... , therefore the semi- restricted model assumes toothfish may exist in locations of suitable habitat where no ... into account the number of parameters in each model. Observations No research survey data on ... the models uti- lise fishery-dependent data only and have no infor- mation about the distribution of ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Author(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker
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Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends
mm, utilizada actualmente en los arrastreros factoria, asi como las mallas de corona de estructura ... Paper Title: Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined ... . It was found that the selectivity properties of twine codends are unsatisfactory in the case of ... Antarctic icefish, bumphead notothenia, and Scotia Sea icefish. This was primarily caused by the heavy net ... some Antarctic fish, which make it difficult for them to escape from the codend. Selectivity properties ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Author(s): Zaucha, J.
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A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies
(IWLS) da como resultado un promedio de la talla por edad bastante menor para los peces de mayor edad ... ) and Candy (2005). Troynikov (1999) used Bayes theorem to defi ne a maximum likelihood estimation proce ... aged. Subsampling of random lengthfrequency (LF) data used to obtain the samples of fish for ageing ... used length-bin sampling involving a fixed sample size per bin. Estimation of the VB parameters used a ... definition of the likelihood function based on variable probability (VP) sampling due to the prespecified ... length-dependent selectivity function for trawl fishing and the additional effect of length-bin sampling ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Author(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams
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Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
orpaHHlIeHHSI, aKKYMYJlHpOBaHHbli:t BblJlOB CJle.z:.yeT no.z:..z:.ep>KHBaTb Ha MaKCHMaJlbHO B03MO>KHOM ypOBHe ... ) calculado como el CPUE medio referido a ese tiempo. Las capturas totales permisibles pueden ser aumentadas ... Paper Title: Towards an initial operational management procedure for the krill fishery in ... (Euphausia superba) in Subareas 48.1, 48.2 and 48.3 requires a basis for the assessment of resource status ... , and an algorithm for specifying the levels of regulatory mechanisms (e.g., a catch control law) that ... depends on the results of the assessment. The development and selection of a procedure requires a basis ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Author(s): Butterworth, D.S.
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Scientific observations in CCAMLR fisheries – past, present and future
Sistema de Observación Científi ca Internacional, adoptado por la CCRVMA en 1992, tiene como objetivo la ... / Description: CCAMLR has the primary competency for managing fishing south of the Antarctic Polar Front ... -independent studies are difficult and expensive to conduct. In addition, the size of the Convention Area, its ... remoteness and prevailing inclement weather further complicate matters. Therefore, in addition to the ... standard catch and effort data supplied by vessels, the collection of data by scientifically qualified ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 81–98 : Author(s): Sabourenkov, E.N. and E. Appleyard
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
881C in the northern region and Terra Nova Bay (SSRU 881M) (Figure 1). Histological assessment ... Paper Title: Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the ... -at-spawning for female and male Antarctic toothfish (Dissostichus mawsoni) from fish sampled 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 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Author(s): Parker, S.J. and P.J. Grimes
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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
are located in the northern coastal zone, bays and fjords of South Georgia, as well as in its shelf zone ... in bays and fjords. Therefore, spawning of fi sh which had spawned repeatedly to the east of South ... C. gunnari se relacionan tanto con la talla del pez como con la temporada. Keywords: mackerel icefi sh ... South Georgia at various stages of its life cycle Abstract / Description: The distribution of mackerel ... into account the spatial–temporal variability of C. gunnari. Young fish of the first age group (<15 ... cm in length) were mainly found in the southern part of the study area, immature fish (15–25 cm) in ... the east and southwest, and adults (25–39 cm) in the north. The distribution of C. gunnari changes ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A
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Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea
(bonded omega wax, 30 m × 0.25 mm internal diameter and 0.25 µm film thickness) was used to separate ... ) among size groups of Antarctic toothfish collected at different sites. A Tukey HSD post-hoc test ... in the southern Ross Sea Abstract / Description: To infer important prey resources for Antarctic ... toothfish (Dissostichus mawsoni) in the southern Ross Sea, their lipid composition was determined and ... compared to lipid profiles of fish and invertebrate species taken as by-catch in the fishery or collected ... from the stomachs of toothfish. Stable carbon and nitrogen isotope ratios were also determined to ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Author(s): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang
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Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index
pueden tener cierto valor como índices de la abundancia. Se demostró que había correlaciones signifi ... krill abundance index Abstract / Description: Haul-by-haul logbook catch and effort data from the ... Japanese krill fishery for the 1980/81 to 2003/04 fishing seasons were analysed. For a number of ... . The results strongly suggest that the krill fishery in the South Georgia area is operating at a ... critical level of krill availability which is just enough to maintain the best factory performance. In this ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Author(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu
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Telemetry monitoring of ecological resources
on 16 millimeter film although later a computer was used to determine the angular bearings. A similar ... activity or transmitter proximity to a nest or other specific site. While these units perform well ... the down-link data to determine location with an on-site data processor. These data processors are also ... monitoring using the Argos/Tiros system and satellite transmission of data are also covered. File: 24 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Author(s): Kuechle, V.B.