Résultats de la recherche
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Quantifying movement behaviour of vessels in the Antarctic krill fishery
interaction by x, a spline term in x, and interac- tions between the factors and the spline term in x ... . Nationality by statistical area (ASD_CODE) showed significant linear interaction with catch level (x) for ... sea- son and the other during the 2001/02–2002/03 sea- sons (Figure 5b). The latter peak in krill ... consistently low over the last decade with a slight peak of ~0.1 in the 2001/02 season. Discussion In this ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 131–148 : Auteur(s): Kawaguchi, S. and S.G. Candy
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Antarctic krill and ecosystem management – from Seattle to Siena
over 500 000 tonnes in 1982 and a total of 6.1 million tonnes being taken between 1973 and 2001 ... , 1998). From the ‘one-way’ interaction model developed (i.e. where fl uctuations in krill abundance ... required that: (i) harvested populations should be assessed and monitored; (ii) ecological interactions ... of MSY arises from the need to account for interactions between exploited stocks and other species ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Auteur(s): Miller, D.G.M
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A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)
success when compared to unencumbered control birds (Ballard et al., 2001; Hull, 1997; Ropert-Coudert ... et al., 2000b, 2007a, 2007b; Taylor et al., 2001). A number of technologies to study penguin ... oesophagus that detect drops in temperature when cold prey items are ingested (Charrassin et al., 2001 ... the Weddell–Scotia Sea conflu- ence in July–August 1988. Of diet by mass, 99% comprised squid: 48% P ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Auteur(s): Ratcliffe, N. and P. Trathan
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A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem
: (i) species interaction effects alone can explain observed predator abundance trends, though not ... objective of the study is to determine whether predator–prey interactions alone can broadly explain observed ... for investigation. Amongst the key inferences of the study are that: (i) species interaction effects ... –krill interaction model introduced in Mori and Butterworth (2004) in various ways, as detailed in the ... taken between 1973 and 2001 (Miller, 2002). The fishery has been stable for the past nine years with ... the catch in 2002 being 98 414 tonnes (SC-CAMLR, 2001). This level is not considered excessive ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Auteur(s): Mori, M. and D.S. Butterworth
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
. Further, the inclusion of an area stratum by fishing year interaction as an additional random effect in ... the GLMM is investigated. Fitting the stratum-by-year interaction as a fixed effect is problematic ... may be difficult. Fitting the stratum-by-year interaction as a random effect avoids this difficulty ... , and diagnostic methods to evaluate the validity of considering this interaction as random are ... -classifi cation. Further, the inclusion of an area stratum by fi shing year interaction as an additional ... random effect in the GLMM is investigated. Fitting the stratum-by-year interaction as a fi xed effect is ... estimates may be diffi cult. Fitting the stratum-by-year interaction as a random effect avoids this diffi ... culty, and diagnostic methods to evaluate the validity of considering this interaction as random are ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Auteur(s): Candy, S.G
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Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area
from studies of predator- prey interactions between P. bransfieldensis and inshore demersal fish of ... conducted near Elephant Island in late autumn/winter 1986. Archive of Fishery and Marine Research, 42 (1 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 43–52 : Auteur(s): Barrera-Oro, E.R., E.R. Marschoff and R.J. Casaux
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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
The CCAMLR 2000 Krill Synoptic Survey of Area 48 (CCAMLR-2000 Survey) (Trathan et al., 2001; Hewitt ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Auteur(s): Heywood, B.G., A.S. Brierley and S.F. Gull
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CCAMLR ecosystem monitoring and management: future work
), Mangel and Switzer (1998) and Constable (2001) – although such modelling was also undertaken for the ... on the major species (see Yodzis, 2001 for review). Scales of Monitoring and Management for a ... , 2001). In addition, varia- tion in the fi shery might arise through varying dependence on particular ... procedure. Some consideration will need to be given to the different scales of interaction for different ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Auteur(s): Constable, A.J
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Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area
2001/02 year class lasted four months. This was estimated based on a retrospective count of daily ... 500 days (TL 13.1 cm). The pelagic stage of egg incubation development for fi sh of the 2001/02 year ... de la classe d'âge de 2001/02 a duré 4 mois. Cette estimation est fondée sur le comptage ... см). Пелагическая стадия инкубационного периода развития икры для рыбы годового класса 2001/02 г ... ; 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 : Auteur(s): Shcherbich, L.V
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Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
moorings (Reid and Brierley, 2001). It has been shown previously (Reid and Brierley, 2001) that sizes of ... may occur against the predominately low winter signal (e.g. July–August in 2005) (Figure 2), and ... physical interactions operating at various scales throughout the Scotia Sea (Murphy et al., 1998) and ... . Ser. Everson, I. 1984. Marine interactions. In: Laws, R.M. (Ed.). Antarctic Ecology, 2. Academic ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Auteur(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone