ISLAND is a research cruise that will address the above issues through the following 3 specific objectives: a) To explore how the NW Sicilian canyons evolved during the Late Quaternary (differences in style, frequencies and intensity of sedimentary flows, possible differences in forcing mechanisms) and to assess which canyon(s) is/are more “active” in the present-day conditions and why. b) To establish whether canyons displaying different morphologies and controlled by different processes may be characterized by differences in the spatial distribution and variability of benthic biomass and biodiversity (are the most active canyons always the most biodiverse?). c) To explore the role of bottom trawling fishery in shaping the morphology and governing the presentday dynamics of submarine canyons and eventually assess its impact in altering canyon biodiversity (is trawling activity affecting the natural canyon seascapes and sedimentary dynamics, inducing a change in biodiversity?).
TAlPro-2016 represents the Western Mediterranean basin component of the MedSHIP initiative. The cruise will occupy two meridional sections, one across the relatively flat and deep Algero-Provencal basin, and one across the deep and rugged Tyrrhenian Sea. The data collected during these sections will allow to: 1) measure the changes in the thermohaline properties of Mediterranean water masses at the basin-scale; 2) quantify the Dissolved Inorganic Carbon (DIC) storage in the Western Mediterranean Sea; 3) quantify the uptake of anthropogenic carbon in the Western Mediterranean Sea; 4) quantify changes in the ventilation of the deep and intermediate water masses thanks to the transient tracers (CFCs and SF6).