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

MARIA CERAULO; ANDREA GAVIO; FERNANDO J. HIDALGO; BUSCAINO G; MARÍA CIELO BAZTERRICA; MAZZOLA S

Brisbane

Congreso; ISE Ecoacoustics Congress 2018; 2018

International Society of Ecoacoustics

This study was conducted in the framework of the Italian-Argentinian scientific cooperation (project CAIMAR JLfunded by CNR and BOSS funded by Italian Ministry of Foreign Affair - MAECI) and aims to identify the maincomponents of the soundscape of the coastal lagoon named Mar Chiquita (Mar del Plata, Argentina), a Man andthe Biosphere Reserve (MAB, UNESCO). It is a body of brackish water of 46 km2, connected to the sea, with awide 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 autonomousunderwater acoustic recorders positioned following a distances gradient from the open sea mouth. Seasonal andcircadian patters were found for fish calls; otherwise crustaceans sound pulses did not show a clear temporalpattern. Tide and wind dominate at lower frequencies up to 1 kHz and anthropogenic noise is mainlyconcentrated close to the mouth