TY - JOUR
TI - Experimental Chronic Exposure of the Foraminifer Pseudotriloculina rotunda to Zinc
AU - Nardelli, Maria Pia
AU - Sabbatini, Anna
AU - Negri, Alessandra
TI - Experimental Chronic Exposure of the Foraminifer Pseudotriloculina rotunda to Zinc
AB - Miliolid (calcareous imperforated test) foraminifera have large diffusion all over the world in a wide range of marine environments, but their distributional pattern in relation to heavy metal pollution is not clearly understood yet. The aim of this study was to better understand the biological response of the miliolid species Pseudotriloculina rotunda to experimental chronic exposure at several zinc concentrations. The duration of the experiment was 10 weeks, and six different concentrations of zinc were tested between 0 and 100 mg/L. Increasing zinc concentrations led to increasing delay or to complete cease of the new chambers’ construction, with consequences on growth rates and affected vitality and biomass variations at medium to high concentrations. Moreover, our results showed that, even at high concentrations, zinc did not cause macroscopic test deformities due to anomalous arrangements of chambers.
VL - 2013
IS - Volume 52, Issue 3
PY - 2013
SN - 0065-1583
C1 - 1689-0027
SP - 193
EP - 202
DO - 10.4467/16890027AP.13.0017.1114
UR - https://ejournals.eu/en/journal/acta-protozoologica/article/experimental-chronic-exposure-of-the-foraminifer-pseudotriloculina-rotunda-to-zinc
KW - foraminifera
KW - zinc pollution
KW - heavy metal
KW - test deformations
KW - survival
KW - growth rates