INVESTIGADORES
GIMENEZ Juliana
congresos y reuniones científicas
Título:
Age, growth and mortality of the prosobranch snail Zidona dufresnei (Donovan, 1823) in the Mar del Plata area, SW Atlantic Ocean.
Autor/es:
JULIANA GIMÉNEZ Y THOMAS BREY.
Lugar:
Bremerhaven, Alemania
Reunión:
Jornada; Doktoranden tage Alfred Wegener Institute; 2002
Institución organizadora:
Alfred Wegener Institute
Resumen:
The volutid snail Zidona dufresnei is a benthic top predator in the Mar del Plata (Argentina) shelf area where it was subjected to unregulated commercial exploitation for more than 20 years. So far there is no stock management, and hitherto even the most basic information on population dynamics of this species is missing. Annual formation of internal shell growth bands visible by x-ray was confirmed by the stable oxygen isotope record in the shell carbonate that reflects seasonal oscillations in water temperature.
