Soundscape of Mar Chiquita estuarine (Mar del Plata, Argentina)

MAZZOLA, SALVATORE; BAZTERRICA, M CIELO; BUSCAINO, GIUSEPPA; FERNANDO HIDALGO; GAVIO, MARÍA ANDREA; CERAULO, MARÍA

Brisbane

Congreso; Ecoacoustics Congress; 2018

Griffit University

This study was conducted in the framework of the Italian-Argentinian scientific cooperation (project CAIMAR JL funded by CNR and BOSS funded by Italian Ministry of Foreign Affair - MAECI) and aims to identify the main components of the soundscape of the coastal lagoon named Mar Chiquita (Mar del Plata, Argentina), a Man and the Biosphere Reserve (MAB, UNESCO). It is a body of brackish water of 46 km2, connected to the sea, with a wide range of salinity (2 to 35 UPS) and of depth (0.7-2.5 m). Data were collected in 2017 during a winter and summer sessions, winter and in summer with 6 autonomous underwater acoustic recorders positioned following a distances gradient from the open sea mouth. Seasonal and circadian patters were found for fish calls; otherwise crustaceans sound pulses did not show a clear temporal pattern. Tide and wind dominate at lower frequencies up to 1 kHz and anthropogenic noise is mainly concentrated close to the mouth.