Resultados de la búsqueda
-
Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
pigment 61%, n = 15 OCTS 9 August 1996 to July 1997 chlorophyll-a 21%, n = 17 SeaWiFS 9 September 1997 ... , including bet- ter understanding of the effect of temperature. In an attempt to avoid the issues of the ... in the late 1990s. Selph et al. (2001), based on observations well north of the Ross Sea relatively ... explore biological–physical interactions and provide estimates of phytoplank- ton biomass, composition ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Autor(es): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
-
An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using CASAL
appropriate, since SLOF could not be removed to an acceptable degree. The issues concerning the effect of the ... issues concerning the effect of the tension between survey data and mark–recapture data on parameter ... of issues that need to be addressed in toothfish assessments, notably the age-specific spatial ... groups with the main group, Survey Group 1, comprising surveys from 2001, 2002 and 2004 to 2007 ... population/fishery models. Year of release: 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Number ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 1–34 : Autor(es): Candy, S.G and A.J. Constable
-
The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
interactions between species. Species that directly interact with the target and by-catch species (hereafter ... CCAMLR Scier~ce, Vol . 8 (2001): 37-64 THE ECOSYSTEM ... biological interactions.) Figure 2: Structure of the food web around South Georgia Island in the Atlantic ... in the structure of the food web. Habitat issues are not considered further here. The Scientific ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Autor(es): Constable, A.J
-
Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia
interannual variability in the distribution of trawls. The data for 1993 were only available from August but ... interannual variability in the distribution of trawls. The data for 1993 were only available from August but ... interactions between the environment and krill. Such studies, however, are usually geographically limited and ... -fishery interactions. An understanding of the localised interactions of predators and prey around ... around South Georgia (Trathan et al., 1992). The data give insight into the local interactions between ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Autor(es): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt
-
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 ... for a calibrated echo sounder, and issues with identifying echoes from target organisms in single ... 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 ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Autor(es): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
-
Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
(Hofmann et al., 1998; Murphy et al., 1998; Murphy and Reid, 2001; Siegel et al., 2003; Tarling et al ... based on maximum age. Murphy and Reid (2001) suggested that a value of 1.25 produced the best match ... 0.610 0.268 1998 0.279 n/a 0.690 0.462 1999 0.022 n/a 0.168 0.042 2000 n/a n/a n/a n/a 2001 0.106 n ... Bellingshausen Sea (LTER) and the West area of the AMLR grid. There are two general issues to consider con ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Autor(es): Kinzey, D., G. Watters and C.S. Reiss
-
CCAMLR ecosystem monitoring and management: future work
), Mangel and Switzer (1998) and Constable (2001) – although such modelling was also undertaken for the ... monitoring and management: future work these models will not incorporate all interactions amongst all ... on the major species (see Yodzis, 2001 for review). Scales of Monitoring and Management for a ... Krill Fishery The issue of scales of interactions of different species with each other, with the ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Autor(es): Constable, A.J
-
Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3
August 2001. Specimens were frozen and then thawed prior to examination at the British Antarctic ... . Williams. 2001. Trophic interactions between the Patagonian toothfi sh, its fi shery, and seals and ... interactions in the Southern Ocean ecosystem. In the waters around South Georgia and Macquarie Island ... ; Goldsworthy et al., 2001), and discarded by- catch fi sh are known to be taken by black-browed and grey ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 133–143 : Autor(es): Morley, S. and M. Belchier
-
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)
underestimates of density, although these issues can be overcome to some extent using distance sampling to ... 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 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Autor(es): Ratcliffe, N. and P. Trathan
-
Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic (Subareas 48.2 and 48.3)
ecosystem approach adopted by CCAMLR (SC-CAMLR, 1993 and 2001; Thomson et al., 2001; Hewitt and Low, 2000 ... theory of fi sheries systems developed in AtlantNIRO by Kadilnikov (1985 and 2001). This theory ... CCAMLR Statistical Bulletins (CCAMLR, 1994 and 2001). Fishing effort was standardised over the groups ... catches reached 400 000 tonnes (CCAMLR, 1994 and 2001) from which 95 to 99% was taken by the Soviet fl ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 15–35 : Autor(es): Kasatkina, S.M. and V.F. Ivanova