Importance of prey and predator feeding behaviors for trophic transfer and secondary poisoning

Environmental Science & Technology
Amy C BrooksLorraine Maltby

Abstract

Hydrophobic contaminants accumulate within aquatic sediments, hence pelagic predators may have limited direct contact with such compounds, but can be exposed via their benthic prey (i.e., via dietary exposure). Here we examine the importance of feeding behaviors of both prey (sediment ingesters or noningesters) and predators (piercers or engulfers) in determining the extent of dietary exposure and toxic effects. A freshwater macroinvertebrate system was used, consisting of two predator species, a piercer (Notonecta glauca) and an engulfer (Ischnura elegans), and three prey species, a sediment noningester (Cloëon dipterum) and two sediment ingesters (Asellus aquaticus, Chironomus riparius). Predators were fed prey previously exposed to artificial sediment dosed with 30 microg/g of 14C benzophenone. The piercer predator accumulated more benzophenone from sediment ingester compared to sediment noningester prey, whereas the engulfer predator accumulated a similar concentration for all three prey species. Toxic effects, in terms of reduced feeding rate, were only observed with the engulfer feeding on sediment noningesters, probably due to the interaction between the narcotic mode of action of benzophenone and predator hunting strate...Continue Reading

References

Apr 1, 1995·Journal of Pharmaceutical and Biomedical Analysis·M CichnaJ F Huber
Jun 14, 2002·Aquatic Toxicology·Mette ChristensenGary T Banta
Jan 14, 2003·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·N N SushchikG S Kalachova
Aug 23, 2003·Marine Pollution Bulletin·Daniel R OrosJay A Davis
Mar 18, 2004·Archives of Environmental Contamination and Toxicology·M H Perez, W G Wallace
Sep 9, 2004·Environmental Toxicology and Chemistry·Giulio PojanaAntonio Marcomini
May 20, 2005·Toxicological Sciences : an Official Journal of the Society of Toxicology·Tisha King HeidenMichael J Carvan
Oct 3, 2006·Toxicology Letters·Tomohiro HayashiNakao Kojima
Aug 21, 2007·Environmental Pollution·Philip N SmithKevin D Reynolds
Jul 4, 2009·Environmental Toxicology and Chemistry·Amy C BrooksLorraine L Maltby
May 1, 1982·Environmental Science & Technology·D Mackay

❮ Previous
Next ❯

Citations

May 31, 2015·Ecotoxicology and Environmental Safety·Ana Isabel Del ArcoPaul J Van den Brink
Dec 31, 2014·Environmental Science and Pollution Research International·Alessando CareghiniElena Sezenna
Oct 28, 2019·Archives of Environmental Contamination and Toxicology·Melissa Bergmann, Manuel A S Graça
Aug 11, 2017·Biological Reviews of the Cambridge Philosophical Society·Fredric M WindsorCharles R Tyler

❮ 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.