Impairment of trophic interactions between zebrafish (Danio rerio) and midge larvae (Chironomus riparius) by chlorpyrifos.

Ecotoxicology
Miriam Langer-JaesrichAlmut Gerhardt

Abstract

The effects of chemicals on biotic interactions, such as competition and predation, have rarely been investigated in aquatic ecotoxicology. This study presents a new approach for the investigation of predator-prey interactions between zebrafish (Danio rerio) and midge larvae (Chironomus riparius) impaired by chlorpyrifos (CHP), a neurotoxic insecticide. With a simple experimental design including four different treatments: (1) control, (2) predator exposed, (3) prey exposed and (4) both, predator and prey, exposed, we were able to detect by visual observation an increase in the feeding rate of zebrafish preying on exposed chironomids after acute (2 h) exposure to 6 μg/l CHP. Previously, a decrease in the burrowing behaviour of exposed chironomid larvae was observed. However, when pre-exposing simultaneously both predators and prey, no significant differences in the feeding rate of zebrafish were observed. This suggests an impairment in prey recognition of the exposed zebrafish. At a lower CHP concentration (1 μg/l), no differences in feeding rate of zebrafish were observed. We therefore propose the use of trophic interactions as parameters in higher tier studies for chemical testing and evaluation of ecotoxicological risk asses...Continue Reading

References

Aug 1, 1997·Ecotoxicology and Environmental Safety·T Hamers, P H Krogh
Feb 20, 1998·Archives of Environmental Contamination and Toxicology·M T MooreC M Cooper
Oct 6, 1999·Archives of Environmental Contamination and Toxicology·M J LydyM A Ternes
Oct 25, 2002·Environmental Pollution·Erwin W M RoexCornelis A M van Gestel
May 14, 2003·Ecotoxicology and Environmental Safety·M A Grippo, A G Heath
Sep 29, 2004·Neurotoxicology and Teratology·Edward D LevinElwood Linney
Jul 1, 2005·Archives of Environmental Contamination and Toxicology·L J SchulerM J Lydy
Nov 9, 1990·Science·M E Power
Jun 3, 2008·Chemosphere·Jenny Rattfelt NyholmPatrik L Andersson
May 30, 2009·Ecotoxicology and Environmental Safety·Cornelia KienleAlmut Gerhardt
Mar 27, 2012·Environmental Toxicology and Chemistry·David K DeForest, Eric J Van Genderen

❮ Previous
Next ❯

Citations

May 4, 2012·Ecotoxicology and Environmental Safety·María Florencia GutierrezAna María Gagneten
Jan 1, 2019·Environmental Sciences Europe·J B LegradiH Hollert
Jan 23, 2021·Ecotoxicology and Environmental Safety·Débora RebechiMário Antônio Navarro-Silva
Mar 28, 2021·The Science of the Total Environment·Adam Bownik, Donald Wlodkowic

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.