Ecological Engineering

Ecological Engineering can be defined as the design of sustainable ecosystems (natural and artificial), which integrate human society with its natural environment. The main objectives of Ecological Engineering are to;

  1. restore the ecosystems that have been substantially disturbed by human activities,
  2. develop new sustainable ecosystems that have both human and ecological values.

Publications

  • Amarasekara, G. P., Priyadarshana, T., Manatunge, J., Tanaka, N., & Gunaratne, G. L. (2016). Mud Crab (Scylla serrata) population changes in Koggala Lagoon, Sri Lanka since construction of the groyne system. Aquatic Ecosystem Health & Management, 19(1), 83-91.
  • Priyadarshana, T., Manatunge, J., & Wijeratne, N. (2016). Finding sustainable solutions to address the issues of resource users of the Chilaw Lagoon, Practical Action, Sri Lanka.
  • Gunaratne, G. L., Tanaka, N., Amarasekara, P., Priyadarshana, T., & Manatunge, J. (2014). Effect of inlet morphometry changes on natural sensitivity and flushing time of the Koggala lagoon, Sri Lanka. Landscape and ecological engineering, 10(1), 87-97.
  • Priyadarshana, T., Manatunge, J., & Wijeratne, N. (2014). Finding a Solutions to Address the Issues caused by Modifications made to Natural Mouth of Madampe Lagoon, Practical Action, Sri Lanka.
  • Priyadarshana, T., Manatunge, J., & Wijeratne, N. (2014). Finding a Sustainable Solution to Disturbances caused to Natural Flow of Nanthikadaal Lagoon mouth due to Road Construction and Obstruction in Mouth Canals, Practical Action, Sri Lanka.
  • Priyadarshana, T., Manatunge, J., & Wijeratne, N. (2014). Finding Solutions to Address the Issues caused by Modifications Made to Garanduwa Lagoon, Practical Action, Sri Lanka.
  • Gunaratne, G. L., Tanaka, N., Amarasekara, G. P., Priyadarshana, T., & Manatunge, J. (2011). Impact of rubble mound groyne structural interventions in restoration of Koggala lagoon, Sri Lanka; numerical modelling approach. Journal of Coastal Conservation, 15(1), 113-121.
  • Gunaratne, G. L., Tanaka, N., Priyadarshana, T., & Manatunge, J. (2011). Human intervention triggered changes to inlet hydrodynamics and tidal flushing of Koggala lagoon, Sri Lanka. Conditions for entrepreneurship in Sri Lanka: A Handbook, 347.
  • Manatunge, J., & Witharana, W. A. U. (2011). An Introduction to Wetlands in the Tropics. In Wetlands for Tropical Applications: Wastewater Treatment by Constructed Wetlands, 1-11.
  • Gunaratne, G. L., Tanaka, N., Amarasekara, P., Priyadarshana, T., & Manatunge, J. (2010). Restoration of Koggala lagoon: Modelling approach in evaluating lagoon water budget and flow characteristics. Journal of Environmental Sciences, 22(6), 813-819.
  • Asaeda, T., Manatunge, J., Priyadarshana, T., & Park, B. K. (2009). Problems, restoration, and conservation of lakes and rivers. Oceans and Aquatic Ecosystems-Volume I, 38.
  • Priyadarshana, T., Asaeda, T., Manatunge, J., Fujino, T., & Gamage, N. P. (2009). Dynamics, Threats, Responses and Recovery of Riverine-Riparian Flora. Oceans and Aquatic Ecosystems, 1, 256-285.
  • Priyadarshana, T., Manatunge, J., & Wijeratne, N. (2009). Finding a long-lasting solution for problems created by increased flow into Malala-Embilikala Lagoon, Practical Action, Sri Lanka.
  • Priyadarshana, T., Manatunge, J. & Wijeratne, N. (2009). Consequences of Shifting Natural Mouth of Rathgama Lagoon & Finding a Solution to Restore its Natural Functioning, Practical Action, Sri Lanka.
  • Kularatne, R. K. A., Kasturiarachchi, J. C., Manatunge, J. M. A., & Wijeyekoon, S. L. J. (2009). Mechanisms of manganese removal from wastewaters in constructed wetlands comprising water hyacinth (Eichhornia crassipes (Mart.) Solms) grown under different nutrient conditions. Water environment research, 81(2), 165-172.
  • Hung, N. T., Asaeda, T., & Manatunge, J. (2007). Modeling interactions of submersed plant biomass and environmental factors in a stream using structural equation modeling. Hydrobiologia, 583(1), 183-193.
  • Asaeda, T., & Manatunge, J. (2007). Physiological responses of topmouth gudgeon, Pseudorasbora parva, to predator cues and variation of current velocity. Aquatic Ecology, 41(1), 111-118.
  • Priyadarshana, T., Manatunge, J., & Wijeratne, N. (2007). Impacts and consequences of removal of the sand bar at the Koggala lagoon mouth & rehabilitation of the lagoon mouth to restore natural formation of the sand bar. Report, Practical Action, Sri Lanka.
  • Asaeda, T., Manatunge, J., & Fujino, T. (2007). The effects of predation risk and current velocity stress on growth, condition and swimming energetics of Japanese minnow (Pseudorasbora parva). Ecological Research, 22(1), 32-40.
  • Asaeda, T., Rajapakse, L., Manatunge, J., & Sahara, N. (2006). The effect of summer harvesting of Phragmites australis on growth characteristics and rhizome resource storage. Hydrobiologia, 553(1), 327-335.
  • Asaeda, T., Manatunge, J., Roberts, J., & Hai, D. N. (2006). Seasonal dynamics of resource translocation between the aboveground organs and age-specific rhizome segments of Phragmites australis. Environmental and Experimental Botany, 57(1-2), 9-18.
  • Lan, N. K., Asaeda, T., & Manatunge, J. (2006). Decomposition of aboveground and belowground organs of wild rice (Zizania latifolia): Mass loss and nutrient changes. Aquatic Ecology, 40(1), 13-21.
  • Rajapakse, L., Asaeda, T., Williams, D., Roberts, J., & Manatunge, J. (2006). Effects of water depth and litter accumulation on morpho-ecological adaptations of Eleocharis sphacelata. Chemistry and Ecology, 22(1), 47-57.
  • Asaeda, T., Manatunge, J., Rajapakse, L., & Fujino, T. (2006). Growth dynamics and biomass allocation of Eleocharis sphacelata at different water depths: observations, modeling, and applications. Landscape and Ecological Engineering, 2(1), 31-39.
  • Priyadarshana, T., Asaeda, T., & Manatunge, J. (2006). Hunger-induced foraging behavior of two cyprinid fish: Pseudorasbora parva and Rasbora daniconius. Hydrobiologia, 568(1), 341-352.
  • Hai, D. N., Asaeda, T., & Manatunge, J. (2006). Latitudinal effect on the growth dynamics of harvested stands of Typha: A modeling approach. Estuarine, Coastal and Shelf Science, 70(4), 613-620.
  • Sharma, P., Asaeda, T., Manatunge, J., & Fujino, T. (2006). Nutrient cycling in a natural stand of Typha angustifolia. Journal of Freshwater Ecology, 21(3), 431-438.
  • Shilla, D. A., Asaeda, T., Kian, S., Lalith, R., & Manatunge, J. (2006). Phosphorus concentration in sediment, water and tissues of␣ three submerged macrophytes of Myall Lake, Australia. Wetlands Ecology and Management, 14(6), 549-558.
  • Asaeda, T., Lan, N. K., & Manatunge, J. (2005). Effects of self-thinning of shoots on the nutrient budgets of Zizania latifolia. Hydrobiologia, 537(1), 47-52.
  • Lan, N. K., Asaeda, T., & Manatunge, J. (2005). The effects of litter cover on the early growth of Manchurian wild rice (Zizania latifolia). Journal of Freshwater Ecology, 20(2), 263-267.
  • Asaeda, T., Vu, T. K., & Manatunge, J. (2005). Effects of flow velocity on feeding behavior and microhabitat selection of the stone moroko Pseudorasbora parva: a trade-off between feeding and swimming costs. Transactions of the American Fisheries Society, 134(2), 537-547.
  • Asaeda, T., Hai, D. N., Manatunge, J., Williams, D., & Roberts, J. (2005). Latitudinal characteristics of below-and above-ground biomass of Typha: A modelling approach. Annals of Botany, 96(2), 299-312.
  • Asaeda, T., & Manatunge, J. (2005). Foraging of a small planktivore (Pseudorasbora parva: Cyprinidae) and its behavioral flexibility in an artificial stream. Hydrobiologia, 549(1), 155-166.
  • Asaeda, T., Fujino, T., & Manatunge, J. (2005). Morphological adaptations of emergent plants to water flow: a case study with Typha angustifolia, Zizania latifolia and Phragmites australis. Freshwater Biology, 50(12), 1991-2001.
  • Asaeda, T., Hung N. T., Manatunge, J., & Fujino, T. (2004). Effects of flowing water and sediment characteristics on the spatial distribution of submerged macrophytes. Journal of Freshwater Ecology, 19(2), 401-405.
  • Sultana, M., Asaeda, T., Manatunge, J., & Ablimit, A. (2004). Colonisation and growth of epiphytic algal communities on Potamogeton perfoliatus under two different light regimes. New Zealand Journal of Marine and Freshwater Research, 38(4), 585-594.
  • Furusato, E., Asaeda, T., & Manatunge, J. (2004). Tolerance for prolonged darkness of three phytoplankton species, Microcystis aeruginosa (Cyanophyceae), Scenedesmus quadricauda (Chlorophyceae), and Melosira ambigua (Bacillariophyceae). Hydrobiologia, 527(1), 153-162.
  • Asaeda, T., Sultana, M., Manatunge, J., & Fujino, T. (2004). The effect of epiphytic algae on the growth and production of Potamogeton perfoliatus L. in two light conditions. Environmental and Experimental Botany, 52(3), 225-238.
  • Asaeda, T., Yutani, K., Sahara, N., & Manatunge, J. (2004). Age specific rhizome dynamics of Phragmites australis and their effects on nutrient cycling. Research Report of Research and Education Center for Inland water Environment, 2, 47-52.
  • Asaeda, T., Manatunge, J., Fujino, T., & Sovira, D. (2003). Effects of salinity and cutting on the development of Phragmites australis. Wetlands Ecology and Management, 11(3), 127-140.
  • Asaeda, T., Park, B. K., & Manatunge, J. (2002). Characteristics of reaction field and the reactive distance of a planktivore, Pseudorasbora parva (Cyprinidae), in various environmental conditions. Hydrobiologia, 489(1), 29-43.
  • Asaeda, T., Trung, V. K., Manatunge, J., & Van Bon, T. (2001). Modelling macrophyte–nutrient–phytoplankton interactions in shallow eutrophic lakes and the evaluation of environmental impacts. Ecological Engineering, 16(3), 341-357.
  • Asaeda, T., Pham, H. S., Priyantha, D. N., Manatunge, J., & Hocking, G. C. (2001). Control of algal blooms in reservoirs with a curtain: a numerical analysis. Ecological Engineering, 16(3), 395-404.
  • Manatunge, J., Contreras-Moreno, N., Nakayama, M., & Yoshida, T. (2001). Securing Ownership in Aquaculture Development by Alternative Technology: A Case-study of the Saguling Reservoir, West Java. International Journal of Water Resources Development, 17(4), 611-631.
  • Priyadarshana, T., Asaeda, T., & Manatunge, J. (2001). Foraging behaviour of planktivorous fish in artificial vegetation: the effects on swimming and feeding. Hydrobiologia, 442(1), 231-239.
  • Asaeda, T., Priyadarshana, T., & Manatunge, J. (2001). Effects of satiation on feeding and swimming behaviour of planktivores. Hydrobiologia, 443(1), 147-157.
  • Asaeda, T., Tanaka, N., Tanimoto, K., Priyadarshana, T., & Manatunge, J. (2001). Foraging Behavior of Pseudorasbora parva in Artificial Vegetation. Doboku Gakkai Ronbunshu, 2001(670), 73-82.
  • Manatunge, J., Asaeda, T., & Priyadarshana, T. (2000). The influence of structural complexity on fish–zooplankton interactions: a study using artificial submerged macrophytes. Environmental Biology of Fishes, 58(4), 425-438.
  • Asaeda, T., Trung, V. K., & Manatunge, J. (2000). Modeling the effects of macrophyte growth and decomposition on the nutrient budget in shallow lakes. Aquatic Botany, 68(3), 217-237.
  • Manatunge, J., & Asaeda, T. (1998). Optimal foraging as the criteria of prey selection by two centrarchid fishes. Hydrobiologia, 391(1), 221-238.
  • Manatunge, J., & Asaeda, T. (1998). Quantifying the Predation Rate of Planktivorous Fishes: Implications for Better Lake Management. Environmental Systems Research, 26, 465-470.
  • Emmerson, R. H. C., Manatunge, J. M. A., Macleod, C. L., & Lester, J. N. (1997). Tidal exchanges between Orplands managed retreat site and the Blackwater estuary, Essex. Water and Environment Journal, 11(5), 363-372.

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