Search results
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A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery
is revised at each time-step in response to new state estimates. The following sections provide more ... . The ‘State estimation’ section also assesses which variables it is necessary to measure in order to infer ... on the simplified formulation of Constable’s (2001) multi-species model in Hill et al. (2006). It is modified ... the equations of Constable (2001), and harvesting and movement are represented with additive loss or gain ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Author(s): Hill, S.L. and M. Cannon
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Analysis of albatross and petrel distribution within the CCAMLR Convention Area: results from the Global Procellariiform Tracking Database
, the principal threat to many species is from interaction with fisheries (Robertson and Gales, 1998; Croxall et ... of at-sea observation data (e.g. White et al., 2001; Woehler et al., 1999), but are also among the most ... areas where there is potential interaction with fisheries. Data holders submitted Geolocator (GLS ... periods that apply to Subarea 48.3 (open 1 May–31 August, closed 1 September–30 April). Assessment ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 143–174 : Author(s): BirdLife International (prepared by C. Small and F. Taylor)
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Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index
consists of three main sections: (i) a description of the statistical model (a linear mixed model (LMM ... )) used to standardise the haul-by-haul CPUE data is presented in the ‘Sta tistical methods’ section ... shery indices is presented in the ‘Results’ section; Table 1: List of variables and their definitions ... 2, and “:” specifi es an interaction. The consistently best, minimal random-effects model was spl(month.ns) + spl ...
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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Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area
μm at 500 days (TL 13.1 cm). The pelagic stage of egg incubation development for fish of the 2001/02 ... ). The pelagic stage of egg incubation development for fish of the 2001/02 year class lasted four months ... at 500 days (TL 13.1 cm). The pelagic stage of egg incubation development for fi sh of the 2001/02 year ... la classe d'âge de 2001/02 a duré 4 mois. Cette estimation est fondée sur le comptage rétrospectif ... см). Пелагическая стадия инкубационного периода развития икры для рыбы годового класса 2001/02 ... ; Lisovenko, 1982; Frolkina, 1989, 1999, 2001, 2002) has demonstrated that fi sh with gonads at stages II ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Author(s): Shcherbich, L.V
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The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)
species. The ecosystem interactions and function of all lithodids in the region remain poorly understood ... the identification of the less frequently caught species. The ecosystem interactions and function of all lithodids ... species. The ecosystem interactions and function of all lithodids in the region remain poorly understood ... (Dissostichus eleginoides) at South Georgia (Agnew et al., 2001). Laboratory studies on adult growth ... Total catch (tonnes) July/August 1992 Pro Surveyor (USA) Paralomis sp. 299 September 1995–January ... 1996 American Champion (USA) P. spinosissima 497 August 1999 (14 days) Argos Helena (GBR ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Author(s): Belchier, M., T. Peatman and J. Brown
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
adeliae) was studied at Edmonson Point, Victoria Land, during the 1999, 2001 and 2003 breeding seasons ... significantly longer than in 1999 and 2001, which in turn delayed the mean departure date of males on the second ... recorded in 1999 and 2001. The average weight of adults rearing chicks was lower in 2003. It is suggested ... Point, Victoria Land, during the 1999, 2001 and 2003 breeding seasons. Weather and sea-ice regimes ... Point, Victoria Land, during the 1999, 2001 and 2003 breeding seasons. Weather and sea-ice regimes ... than in 1999 and 2001, which in turn delayed the mean departure date of males on the second incubation ... recorded in 1999 and 2001. The average weight of adults rearing chicks was lower in 2003. It is suggested ... Edmonson, en Terre Victoria, pendant les saisons de reproduction de 1999, 2001 et 2003. Les conditions ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Author(s): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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Integration of CPUE data into assessments using the Generalised Yield Model
CCAMLR Science, Vo l . 8 (2001): 65-74 INTEGRATION ... is described in the next section, after which a series of goodness-of-fit diagnostics are suggested ... of a lack of fit (McAllister and Kirchner, 2001). It is also necessary to check ... and the interaction of the fishery with the stock (Constable et al., 2000) and to compare and evaluate the utility ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Author(s): Kirkwood, G.P. and A.J. Constable
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
and sperm whales on demersal longlines Abstract / Description: Depredation is a human–wildlife interaction ... Depredation is a human–wildlife interaction over access to resources, which often includes ... is a human–wildlife interaction over access to resources, which often includes a combination of socio ... . Gasco et al. 2 Introduction Depredation is a human–wildlife interaction over resources, which often ... spatial heteroge- neity of both the fish resource and the interactions with odontocetes. They estimated ... and sperm whales may be found in greater numbers and may interact with fisheries at higher levels ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Author(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile
Paper Title: Operational interactions of sperm whales and killer whales with the Patagonian ... toothfish industrial fishery off southern Chile Abstract / Description: Interactions of sperm whales ... that no interactions were recorded in 153 (84%) of the effectively monitored sets, and that the mode and median ... with operational interactions involving depredation was US$92 684 (CI 95% US$47 302–153 745) for the whole fleet ... (2004): 127–140 127 OPERATIONAL INTERACTIONS OF SPERM WHALES AND KILLER WHALES WITH THE PATAGONIAN ... Ecología y Evolución Universidad Austral de Chile Casilla 567, Valdivia, Chile Abstract Interactions ... 0 and 100%. Considering that no interactions were recorded in 153 (84%) of the effectively monitored sets ... . Financial loss associated with operational interactions involving depredation was US$92 684 (CI 95% US$47 ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Author(s): Hucke-Gaete, R., C.A. Moreno and J. Arata
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A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula
for a number of reasons, an alternative method of calculating an index of fishery-predator interaction has been ... developed. The new index reflects the functional interaction between these two utilisers of the krill ... for a number of reasons, an alternative method of calculating an index of fishery-predator interaction has been ... developed. The new index reflects the functional interaction between these two utilisers of the krill ... of calculating an index of fishery-predator interaction has been developed. The new index reflects ... the functional interaction between these two utilisers of the krill resource and is based on a detailed model ... nombre de raisons, une autre mkthode a et(. mise au point pour calculer un indice de l'interaction p@che ... -predateurs. Le nouvel indice, qui reflete l'interaction fonctitsnnelle entre ces deux consommateurs de la ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Author(s): Agnew, D.J. and G. Phegan