The quest for successful Atlantic salmon restoration: perspectives, priorities, and maxims

Atlantic salmon is often a focal species of restoration efforts throughout the north Atlantic and it is therefore an excellent case study for how best to design programmes to address and mitigate threats and correct population declines. This perspective is written to promote the work that has been accomplished towards restoration of Atlantic salmon populations and synthesize how we believe the lessons can be used effectively to support efforts by management agencies to restore populations. We reviewed where restoration is needed for Atlantic salmon, agreed on definitions for three levels of successful restoration, and then applied these criteria to 49 published papers focused on Atlantic salmon restoration. We identified 16 successful examples of restoration among 49 papers reviewed and discussed what interventions led to success versus failure. We then addressed key questions about when hatchery stocking should be used as part of a restoration measure and whether local restoration efforts are enough when these wide-ranging species encounter broad-scale changes in the north Atlantic, specifically related to issues of climate change and to marine survival. We advise to avoid restoration as much as possible by protecting and managing existing populations and when restoration is necessary, problems should be identified and addressed in partnership with river users. With appropriate resources and research to resolve ongoing mysteries, restoration of lost Atlantic salmon populations is absolutely feasible

Tracking the Time: Measurements towards the characterization of a 3D pixel in terms of time resolution and Landau contribution evaluation

The proven potential of 3D geometries at higher than 1016n˙eq/cm2 radiation fluences, in combination with a small cell approach, makes them an excellent choice for a combined precision timing tracker. In this study, the preliminary results on timing resolution of a single 50×50μm2 3D pixel cell are presented through charge collection measurements with discrete electronics in a laboratory setup. Additionally, in a test-beam campaign with 160 GeV SPS pions, a detailed timing, field and efficiency map is presented using a multi-plane timing telescope with an integrated pixelated matrix. Finally, another testbeam campaign has been completed with the help of the EUDET telescope, to study field uniformity, Landau contribution, collected charge and incidence angles of +/−12°; with a preliminary 5μm spatial resolution through MIMOSA CMOS tracking at CERN SPS pion beams. •Sensors for vertex detectors in high energy physics with high luminosity scenarios.•Testbeam setup development for time and spatial resolution measurements.•3D silicon Pixel sensor time resolution results

The quest for successful Atlantic salmon restoration: perspectives, priorities, and maxims

Atlantic salmon is often a focal species of restoration efforts throughout the north Atlantic and it is therefore an excellent case study for how best to design programmes to address and mitigate threats and correct population declines. This perspective is written to promote the work that has been accomplished towards restoration of Atlantic salmon populations and synthesize how we believe the lessons can be used effectively to support efforts by management agencies to restore populations. We reviewed where restoration is needed for Atlantic salmon, agreed on definitions for three levels of successful restoration, and then applied these criteria to 49 published papers focused on Atlantic salmon restoration. We identified 16 successful examples of restoration among 49 papers reviewed and discussed what interventions led to success versus failure. We then addressed key questions about when hatchery stocking should be used as part of a restoration measure and whether local restoration efforts are enough when these wide-ranging species encounter broad-scale changes in the north Atlantic, specifically related to issues of climate change and to marine survival. We advise to avoid restoration as much as possible by protecting and managing existing populations and when restoration is necessary, problems should be identified and addressed in partnership with river users. With appropriate resources and research to resolve ongoing mysteries, restoration of lost Atlantic salmon populations is absolutely feasible

First Steps in the silicon vertex trigger at CDF

none57The Silicon Vertex Trigger (SVT) in the CDF experiment at Fermilab performs fast and precise track finding and fitting at the second trigger level and has been a crucial element in data acquisition for Run II physics. However as luminosity rises, multiple interactions increase the complexity of events and thus the SVT processing time, reducing the amount of data CDF can record. The SVT upgrade aims to increase the SVT processing power to restore at high luminosity the original CDF DAQ capability. We describe the first steps in the SVT upgrade, consisting of a new Associative Memory with 4 times the number of patterns, and a new Track Fitter to take advantage of these patterns. We describe the system, its tests and its performance. ©2005 IEEE.noneAdelman J.; Annovi A.; Aoki M.; Bardi A.; Bedeschi F.; Belforte S.; Bellinger J.; Berry E.; Bitossi M.; Bogdan M.; Carlsmith M.; Carosi R.; Catastini P.; Cerri A.; Chappa S.; Chung W.; Ciocci M.A.; Crescioli F.; Dell'Orso M.; Di Ruzza B.; Donati S.; Furic I.; Galeotti S.; Giannetti P.; Ginsburg C.M.; Giovacchini P.; Handler R.; Kim Y.K.; Lewis J.D.; Liu T.; Mahlum R.; Maruyama T.; Morsani F.; Ott G.; Pedron I.; Piendibene M.; Pitkanen M.; Pondrom L.G.; Punzi G.; Reisert B.; Rescigno M.; Ristori L.; Sanders H.; Sartori L.; Schifano F.; Sforza F.; Shochet M.; Simoni B.; Spinella F.; Squillacioti P.; Tang F.; Torre S.; Tripiccione R.; Volpi G.; Yang U.K.; Zanello L.; Zanetti A.M.Adelman, J.; Annovi, A.; Aoki, M.; Bardi, A.; Bedeschi, F.; Belforte, S.; Bellinger, J.; Berry, E.; Bitossi, M.; Bogdan, M.; Carlsmith, M.; Carosi, R.; Catastini, P.; Cerri, A.; Chappa, S.; Chung, W.; Ciocci, M. A.; Crescioli, F.; Dell'Orso, M.; Di Ruzza, B.; Donati, S.; Furic, I.; Galeotti, S.; Giannetti, P.; Ginsburg, C. M.; Giovacchini, P.; Handler, R.; Kim, Y. K.; Lewis, J. D.; Liu, T.; Mahlum, R.; Maruyama, T.; Morsani, F.; Ott, G.; Pedron, I.; Piendibene, M.; Pitkanen, M.; Pondrom, L. G.; Punzi, G.; Reisert, B.; Rescigno, M.; Ristori, L.; Sanders, H.; Sartori, L.; Schifano, F.; Sforza, F.; Shochet, M.; Simoni, B.; Spinella, F.; Squillacioti, P.; Tang, F.; Torre, S.; Tripiccione, R.; Volpi, G.; Yang, U. K.; Zanello, L.; Zanetti, A. M