Physiological effects of essential metals on two detritivores: Atyaephyra desmarestii (Millet) and Echinogammarus meridionalis (Pinkster)

Freshwater ecosystems are essential for humans; however, input of several types of contamination has led to the degradation of these ecosystems. Thus, it is urgent to assess their health to allow actions for prevention and remediation. The level of trace metals can be enhanced by natural or anthropo...

Full description

Saved in:
Bibliographic Details
Published in:Environmental toxicology and chemistry 2016-06, Vol.35 (6), p.1442-1448
Main Authors: Quintaneiro, Carla, Ranville, James F., Nogueira, António J. A.
Format: Article
Language:English
Subjects:
Amphipoda - drug effects
Amphipoda - physiology
Animals
Anthropogenic factors
Aquatic ecosystems
Atyaephyra desmarestii
Behavior
Bioassays
Contamination
Copper
Copper - toxicity
Decapoda
Decapoda (Crustacea) - drug effects
Decapoda (Crustacea) - physiology
Detritivore
Detritivores
Dose-Response Relationship, Drug
Echinogammarus
Ecosystem
Feeding
Feeding behavior
Feeding Behavior - drug effects
Feeding rates
Fresh Water - chemistry
Freshwater ecosystems
Heavy metals
Lethal Dose 50
Millet
Physiological effects
Physiology
Shellfish
Species
Toxicity
Trace Elements - toxicity
Trace metals
Water Pollutants, Chemical - toxicity
Zinc
Zinc - toxicity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Freshwater ecosystems are essential for humans; however, input of several types of contamination has led to the degradation of these ecosystems. Thus, it is urgent to assess their health to allow actions for prevention and remediation. The level of trace metals can be enhanced by natural or anthropogenic sources. Essential metals, such as copper and zinc, become toxic when present in the environment above threshold concentrations. To evaluate the physiological effects of these 2 essential metals for 2 freshwater detritivores, the shrimp Atyaephyra desmarestii and the amphipod Echinogammarus meridionalis, acute tests were performed. Forty‐eight hour median lethal concentration (LC50) values were estimated for these species using static bioassays with copper and zinc. Sublethal assays for both metals with several phases were also done to evaluate the effects on feeding behavior. The LC50 values of copper for the shrimp A. desmarestii and amphipod E. meridionalis were 0.128 mg/L and 0.050 mg/L and those of zinc were 7.951 mg/L and 11.860 mg/L, respectively. The results indicated that copper is more toxic to both species. Only E. meridionalis showed deleterious effects of copper on feeding rate. Zinc showed some tendency for feeding inhibition in both species. Environ Toxicol Chem 2016;35:1442–1448. © 2015 SETAC
ISSN:0730-7268
1552-8618
DOI:10.1002/etc.3284