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The construction of an aquatic system to recycle the wastewater coming from an experimental aquaculture plant provided the opportunity to follow the evolution of structural and functional properties of a community in a new eutrophic shallow lake. Specific aims of this study were to describe the temporal patterns of diversity and production of the macroinvertebrate assemblage in different habitats. The benthic assemblage was sampled monthly for 3 years starting 1 month after pond filling. Each month, replicate samples of invertebrates were collected with quantitative methods from 3 habitats: unvegetated bottom, submerged vegetation and emergent vegetation of the littoral zone. We collected a total of 48 macroinvertebrate taxa belonging to 38 families. The number of taxa increased rapidly during the first phase of colonization (93% of taxa were already recorded within 14 months from pond filling) and then slowly decreased through the next 2 years. Diversity pattern through time was not consistent among habitats, being higher in the unvegetated bottom during the first year and on the submerged vegetation and the littoral vegetation in subsequent years. Slopes of rank-abundance curves showed differences among years and habitats, even though all habitats showed a trend towards the increase of the relative dominance of few taxa (e.g. diminishing of slopes). Macroinvertebrate production changed with time and was different among habitats. The development of submerged and emergent macrophytes greatly increased not only the diversity, but also the production of the whole macroinvertebrate assemblage

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Carbon footprint is becoming increasingly important on the business agenda. For a floating wind project dedicated to providing clean energy, an engineering study was performed to present a case and gain additional knowledge on how to develop a green execution model related to the wind turbine substructure and mooring system. Emission calculations, sensitivity analysis, sourcing strategy development, material usage and transportation assessment were used to quantify the environmental benefits and carbon reduction of the various combinations and scenarios. The carbon footprint calculations and project execution method presented in this paper can be a reference for sustainable practices in future floating or conventional wind energy projects. The study showed that floating concrete substructure carbon footprint may be considered lower than a floating steel substructure. The mooring system, which is the same for both types of substructures, accounted for a significant portion of the carbon emissions. Logistics accounts for a large share of emissions: How and where goods are procured and transported are as important as the material selected. Locally fabricated items made from greener certified materials are preferred. Use of environmentally friendly concrete in substructure fabrication and suction anchors in glass reinforced plastic (GRP) are two typical examples of more sustainable approaches. Floating wind in combination with a green project execution model is a relatively new concept. Performance of the study showed that internal communication and promotion of carbon footprint awareness are essential for the project team's success. Emissions may deviate from what is initially anticipated. Moreover, it is vital to apply a green execution model to the establishment of cross-company communication and a focused task force. To ensure engagement from team members and reduce bureaucracy, positive reporting of carbon reduction considerations during project execution is recommended. This emphasizes the psychology of a team buy-in based on positive experiences and rewards for considering climate considerations.