Resultados de la búsqueda

1. A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem

   Paper Title:  A review of the trophic role of mesopelagic fish of the family Myctophidae in the ... myctophids demonstrate that this group of mesopelagic fish plays a significant role in the community of ... fishes. According to a preliminary estimate, the yearly consumption of zooplankton by Electrona ... trophic system and are consumers of the second order. Myctophids play a major role as producers ... carlsbergi varia de 157 a 364 millones de toneladas. Los mictofidos ocupan el tercer nivel en la cadena ... una importante funcion en la comunidad de 10s organismos marinos del ocean0 Austral. Los mictofidos ... se situan en la cadena alimentaria a nivel de de consumidores de zooplancton. La gran cantidad de ... productores importantes, ayudando en la produccidn de organismos a mas alto nivel en la cadena alimentaria ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Autor(es): Kozlov, A.N

2. A review of data on abundance, trends in abundance, habitat use and diet of ice-breeding seals in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)

   Paper Title:  A review of data on abundance, trends in abundance, habitat use and diet of ice ... important as a means of understanding and managing impacts such as exploitation and climate change ... and aerial operations to ob- tain a synoptic circumpolar survey effort. The APIS Southwell et al ... et al. (1995) noted that the only crabeater seal that left the pack-ice crossed a large bay of open ... deep as 713 m have been recorded (Burns et al., 2004). Diving patterns vary seasonally, with a clear ... Science, Vol. 19 (2012): 49–74 49 A REVIEW OF DATA ON ABUNDANCE, TRENDS IN ABUNDANCE, HABITAT USE AND ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 49–74 : Autor(es): Southwell, C., J. Bengtson, M. Bester, A.S. Blix, H. Bornemann, P. Boveng and M. Cameron, J. Forcada, J. Laake, E. Nordøy, J. Plötz, T. Rogers, D. Southwell, D. Steinhage, B.S. Stewart and P. Trathan

3. Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations

   Paper Title:  Fitting Euphausia superba into Southern Ocean food-web models: a review of data ... southwest (SW) Atlantic sector is a major scale of variability, driven by sea-ice and climate effects on ... insights into krill–predator–fisheries interactions (Reid et al., 2005; Hill et al., 2007b, 2012a; de la ... associated with a strong El Niño Southern Oscillation (ENSO) sig- nal, whether El Niño or La Nina; a ... (Croxall et al., 1999; Hopkins et al., 1993a, 1993b; Stowasser et al., 2012); (ii) the species is a ... on zooplankton (Atkinson et al., 2012b). A general caveat that applies to many aspects of krill ecol ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Autor(es): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)

4. A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels

   Paper Title:  A post-processing method to remove interference noise from acoustic data collected ... of the vessels. A simple method to remove significant interference noise was introduced based on ... the method was demonstrated by applying it to the acoustic data at 38, 70 and 120 kHz collected from a ... the utility of fishing-vessel-based acoustic data for a range of objectives. File:  Wang et al.pdf ... ed d at a at 1 20 k H z. S ta tis tic al v al ue s ar e re pr es en te d by 2 ... layer as a reference (Ryan et al., 2015). Acoustic instruments, such as echosounders, fish finding or ... application of semi- or fully-automated post-processing methods (Cox et al., 2006). Based on a two-sided ... using the standard sphere method (Foote et al., 19 A post-processing method to remove interference ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Autor(es): Wang, X., J. Zhang and X. Zhao

5. Commercial fishing vessels as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel

   solutions exemplified with a new vessel Abstract / Description:  The climate-induced changes presently seen ... in the ecosystems of the Antarctic region require a precautionary approach with respect to the human ... various tasks and required instrumentation are presented and discussed. To illustrate this concept a ... description of a Norwegian krill fishing vessel now under construction is presented. This type of combined ... a result of ice reduction (Flores et al., 2012a; Flores et al., 2012b; Melbourne-Thomas et al ... ). Multibeam echosounders and sonars are also a use- ful tool for swarm studies (Cox et al., 2010). In recent ... -beam echosounder. Deep-Sea Res. II, 57: 508–518. De Robertis, A. and N.O. Handegard. 2013. Fish ... ., 2013). Krill plays a key role in Antarctic marine ecosystems (Siegel, 2010). The combined impact of ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 11–17 : Autor(es): Godø, O.R., C. Reiss, V. Siegel, J.L. Watkins

6. A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery

   Paper Title:  A potential feedback approach to ecosystem-based management: Model Predictive ... Control of the Antarctic krill fishery Abstract / Description:  CCAMLR aims to develop a feedback approach ... whether a feedback approach is likely to achieve the multiple objectives that EBM implies in the complex ... Control (MPC) to achieve objectives for a harvested species, its predators and the fishery, in a ... ., 2000). Objective (ii) is based on the depletion level used by Smith et al. (2011) to indicate a seri ... is a key goal of fisheries management (Rademeyer et al., 2007; Rosenberg, 2009), and objective (iv ... multiple variables, e.g. de la Mare and Constable, 2000) will adequately indi- cate the state of the ... (2012) and Watters et al. (2013) to provide a further assess- ment of feasibility. Secondly ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Autor(es): Hill, S.L. and M. Cannon

7. The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model

   Paper Title:  The sensitivity of multiple output statistics to input parameters in a krill ... –predator–fishery ecosystem dynamics model Abstract / Description:  There is a global need to develop ... stock or the fishery. Output statistics were most sensitive to a parameter controlling predator ... recruitment through pre-recruit mortality. A parameter mediating the effect of a forcing function on krill ... Watters et al. (2013) describe a spatially resolved stochastic simulation model representing one prey ... expert knowledge (Hill et al., 2007b). (b) Identify a small number of key uncertainties and define ... import balance losses through predation and export over a year (Watters et al., 2008b). Krill dynamics ... for the model, based on the struc- ture and parameterisation of Watters et al. (2013), but not a ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Autor(es): Hill, S.L. and J. Matthews

8. 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)

   Paper Title:  A review of the diet and at-sea distribution of penguins breeding within the CAMLR ... . These models require information on the number of predators in a population, their nutritional demands ... will be of utility to modellers as a source of parameters, and to penguin biologists by providing ... division and subareas (for a map of these see www.ccamlr.org/en/organisa- tion/convention-area ... a fixed number of times or until only clear water is returned, de- pending on the study. The method ... using liquid nitrogen (Tierney et al., 2008a). Fatty acids are extracted from the samples using a ... estimation of diet composition (Tierney et al., 2008a). Nevertheless, it may represent a useful means of ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Autor(es): Ratcliffe, N. and P. Trathan

9. A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data

   Paper Title:  A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross ... hence a multi-year mark-recapture tagging program was initiated by New Zealand fishing vessels in 2001 ... abundance from a single release and subsequent recapture events. An integrated Bayesian stock assessment ... showed the data selection provided a precautionary estimate of biomass, and that these estimates were ... et al., 2013a): a single tagged toothfish released at McMurdo Sound has been recaptured in the ASR ... RSR were described in detail by Parker et al. (2013a). A mark-recapture program for Antarctic ... 85 90 D en si ty D en si ty (a) (b) Figure 4: Posterior distribution estimates for ... available for recapture (Parker et al., 2013a). As a consequence, the num- ber of tagged fish recaptured in ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Autor(es): Mormede, S., A. Dunn and S.M. Hanchet

10. A simulation study of krill fishing by an individual Japanese trawler

    Paper Title:  A simulation study of krill fishing by an individual Japanese trawler Abstract ... / Description:  A model is set up for the operation (which includes both searching and fishing) of a Japanese ... krill trawler over a half-month period. It is based on an underlying krill distribution model whose ... is compared with (and partially tuned to) statistics for a sample of data from the commercial fishery ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 1–108 : Autor(es): Butterworth, D.S.

Páginas