Effects of a sewage effluent on reproduction and survival in Eurytemora americana. Experimental response of cultured females

BERASATEGUI, ANABELA; BIANCALANA F.; FRICKE A.; FERANDEZ SEVERINI M; UIBRIG, ROMÁN; DUTTO M.S; CALLIARI D.; HOFFMEYER, MÓNICA S.

Bremen

Simposio; ECSA 56 Coastal systems in transition: From a 'natural' to an 'anthropogenically-modified' state; 2016

Estuarine Coastal Sciences Association and Leibniz Center for Tropical Marine Ecology

The copepod Eurytemora americana is a potential bioindicator of pollution since it usually lives inenvironments with anthropogenic impacts. However, bioavailable contaminants could affect thereproduction and survival of this species. The present study shows preliminary results of laboratoryexperiments addressing the effects of a sewage effluent on E. americana fecundity and survival.The study was carried out with cultured females, incubated under different water qualities andcontrolled conditions during ten days (7±2°C, 14 h light, 32±2 salinity and Tetraselmis sp. +Nannochloropsis sp. as daily food). For assessing the effect of different water qualities, fourtreatments (5 replicates each) were established: P= surface plume water from 100 m of thedischarge area within the Bahía Blanca Estuary-Argentina, D= P