Wild food in an urban environment: freshwater fish consumption at the archaic town of Forcello (northern Italy)

In northern Italy’s Po Plain, Etruscan cities flourished during the Archaic period (c. 6th-4th centuries BC), thanks to an organized and dynamic commercial network that linked these centres with Italy, Europe, and the Mediterranean. This new urban network had a significant impact on the territory it occupied, and zooarchaeological studies document the emergence of a new agricultural strategy and livestock improvement. While there is ample evidence for how these Etruscan communities shaped their urban environments and agricultural hinterland, their relationship with wild resources – outside of prestige hunting – is poorly understood. As a result of taphonomic and recovery biases, zooarchaeological assemblages representing small wild taxa like fish and birds are rare. In this context, the fish bone assemblage from the Archaic harbour town of Forcello offers an exceptional opportunity to investigate wild resource exploitation in an urban context. Here we present an initial analysis of the ichthyological assemblage and place results in their broader zooarchaeological and cultural context. Results suggest a fishing strategy that privileged large, line-caught fish, with a significant degree of continuity in species representation over pre- and proto-history. While the amount of food furnished by fishing was minimal compared to that from domestic livestock, wild foods including fish were the main source of diversity in the diet: a role which may have influenced their relatively greater visibility in Etruscan ritual practices

New trajectories or accelerating change? Zooarchaeological evidence for Roman transformation of animal husbandry in Northern Italy

Throughout the Western provinces of the Roman Empire, greater economic and political connectivity had a major impact on agricultural production, which grew in scale and specialisation after integration with the Roman state. However, uniquely in Western Europe, farming strategies in Italy began to evolve centuries before the Roman conquest, and many ‘Roman’ patterns associated with livestock size and the relative proportions of different taxa first emerged during the early and middle centuries of the first millennium BC. These changes imply a significant reorganisation of production strategies well before Roman hegemony, even in relatively marginal areas of Italy. Zooarchaeological studies have documented further significant changes to livestock production in Roman times, but the relationship between these developments and earlier trends remains unclear. Through analysis of zooarchaeological data for species representation and livestock biometry from lowland northern Italy (Po–Friulian Plain), this study investigates animal exploitation between the Bronze Age and Late Antiquity in order to characterise the influence of Roman political and economic organisation on animal husbandry. Results demonstrated subregional variation in species representation, and different trajectories in the biometric evolution of cattle, sheep and goats, compared to pigs. Initial steps established in the Iron Age towards a more complex and dynamic livestock economy were accelerated and further reconfigured in Roman times, facilitated by Roman economic organisation and the specialised and large-scale production systems within it. Zooarchaeological trends continued to progress over the Roman period, until further changes at the very end of the chronology considered here—around the sixth century AD—suggest another wave of change

Potential of microalgae biomass for the sustainable production of bio-commodities

Human activities are causing major negative environmental impacts, and the development of sustainable processes for production of commodities is a major urgency. Plant biomass represents a valuable alternative to produce energy and materials, but exploiting present crops for commodities production would however require massive resources (i.e. land, water and nutrients), raising serious sustainability concerns. In addition to efforts to improve plant, land and resource use efficiency, it is thus fundamental to look for alternative sources of biomass to complement crops. Microalgae are unicellular photosynthetic organisms that show a huge, yet untapped, potential in this context. Microalgae metabolism is powered by photosynthesis and thus uses sunlight, a renewable energy source, and the exploitation of microalgae-based products has the potential to provide a beneficial environmental impact. These microorganisms have the ability to synthesize a wide spectrum of bioactive compounds, with many different potential applications (e.g. nutraceutics/pharmaceutics and biofuels). Several, still unresolved, challenges are however present such as the lack of cost-effective cultivation platforms and biomass-harvesting technologies. Moreover, the natural metabolic plasticity of microalgae is not optimized for a production at scale, and low biomass productivity and product yields affect competitiveness. Tuning microalgae metabolism to maximize productivity thus represents an unavoidable challenge to reach the theoretical potential of such organisms