Ecological Engineering

Journal: Ecological Engineering

Abbreviation

Ecol. eng.

Publisher

Elsevier

ISSN

0925-8574
1872-6992

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Publications1 - 10 of 16

Effects of faecal sludge application on growth characteristics and chemical composition of Echinochloa pyramidalis (Lam.) Hitch. and Chase and Cyperus papyrus L.
Kengne, I. M.; Akoa, Amougou; Soh, E. K.; et al. (2008)
Ecological Engineering
Full scale performance evaluation of a partial-depth floating fish guidance bar rack
Kjærås, Halvor; Baktoft, Henrik; Silva, Ana T.; et al. (2025)
Ecological Engineering
Migratory fish are commonly hampered or harmed by Hydropower plants (HPP). To mitigate these impacts, protective and guidance structures have been developed. Modified Bar Rack (MBR) systems, tested under laboratorial conditions, have emerged as promising structures to guide migratory fish past HPP intakes. We evaluated the downstream passage and guiding efficiency of a partial depth floating MBR (89 m long x 1,5 m deep, 50 mm bar spacing) at the River Mandal, Norway. Passage efficiency and behavioural responses were examined by tracking 118 Atlantic salmon smolts with 2D and 3D telemetry. Flow dynamics and behavioural observations were combined to relate hydrodynamic conditions to guidance efficiency. The installation of the MBR system, combined with a flow reduction at the HPP (to 50 % of the river flow), resulted in a downstream passage efficiency of 72.5 %, representing a 22 percentage point increase compared to predictions with flow reduction alone. Success was limited by the partial-depth design, as some smolts passed beneath the rack. Of the 56 tracked smolts that interacted with the MBR (some descended and passed under), 67 % were guided. Based on smolt depth distribution and behavioural responses, guiding efficiency could be approximated at 76 %, almost matching laboratory results. The relatively high guidance was likely due to the sweeping velocity created by the design of the MBR, that also prevented rack clogging. This study provides support for the concept of guiding fish into a migration corridor using an MBR system and presents the first full-scale evaluation of a MBR.
Multi-functional pollution mitigation in a rehabilitated mangrove conservation area
Wickramasinghe, Sriyani; Borin, Maurizio; Kotagama, Sarath W.; et al. (2009)
Ecological Engineering
Quantifying the role of vegetation in slope stability
Schwarz, M.; Preti, F.; Giadrossich, F.; et al. (2010)
Ecological Engineering
Effects of vegetation and fertilizer on metal and Sb plant uptake in a calcareous shooting range soil
Conesa, H.M.; Wieser, M.; Studer, B.; et al. (2011)
Ecological Engineering
Which stream wood becomes functional following wildfires?
Vaz, Pedro G.; Merten, Eric C.; Warren, Dana R.; et al. (2013)
Ecological Engineering
Silvopastoralism in the Alps
Mayer, Andrea C.; Huovinen, Christine (2007)
Ecological Engineering
Potential storages and drivers of soil organic carbon and total nitrogen across river basin landscape: The case of Mo river basin (Togo) in West Africa
Diwediga, Badabate; Le, Quang B.; Agodzo, Sampson; et al. (2017)
Ecological Engineering
Yield-SAFE: A parameter-sparse, process-based dynamic model for predicting resource capture, growth, and production in agroforestry systems
Werf, Wopke van der; Keesman, Karel; Burgess, Paul; et al. (2007)
Ecological Engineering
Growth and nutrient uptake of perennial crops in a paludicultural approach in a drained Mediterranean peatland
Giannini, V.; Silvestri, Nicola; Dragoni, Federico; et al. (2017)
Ecological Engineering

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Journal: Ecological Engineering

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