Track topics on Twitter Track topics that are important to you
The intensive drilling and extraction of fossil fuels in the Gulf of Mexico result in a considerable risk for oil spills impacting its coastal ecosystems. Impacts are more likely to be far-reaching if the oil affects ecosystem engineers like fiddler crabs, whose activities modify biogeochemical processes in the sediment. The present study investigated effects of oil on the fiddler crabs Uca longisignalis and Uca panacea; important as ecosystem engineers and as prey for a wide variety of species. The present study used mesocosms and microcosms to investigate effects of crude oil on fiddler crab burrowing and to assess cellular and tissue damage by the oil. Fiddler crabs were exposed for periods of 5 or 10 days to oil concentrations up to 55 mg/cm(2) on the sediment surface. Their burrowing was delayed, their burrows were smaller, and they transported less sediment in the presence of oil. The hepatopancreas had elevated levels of oxidative stress and a higher abundance of blister cells that play a role in secretory processes. Interspecific differences were observed; most effects were strongest in U. panacea though burrowing was more strongly affected in U. longisignalis. The present study demonstrates that crude oil is likely to impact fiddler crabs and many species that depend on them for their diet or for the ecological changes that result from their burrowing. This article is protected by copyright. All rights reserved.
This article was published in the following journal.
Name: Environmental toxicology and chemistry
In this study, shrimp waste was enzymatically hydrolyzed to generate a green dispersant and the product was tested for crude oil dispersion in seawater. The hydrolysis process was first optimized base...
Environmental factors such as temperature can affect the geographical distribution of species directly by exceeding physiological tolerances, or indirectly by altering physiological rates that dictate...
Understanding the ecology of diseases is important to understanding variability in abundance, and therefore management, of marine animals exploited commercially. The blue crab Callinectes sapidus fill...
Hydrocarbon biodegradation may be slower in cold Arctic than in temperate seawater, and this will affect the toxicity time window of the hydrocarbons. In this study, the acute toxicities of water-solu...
Insecticide effects on nontarget organisms most commonly involve measuring mortality after single exposures. We examined sublethal effects of consecutive exposures of malathion, an organophosphate ins...
The purpose of this study is to compare the efficacy and safety of refined oil extract ointment and crude ointment from indigo naturalis in the treatment of psoriatic vulgaris.
Open repair could be recommended in a first line of treatment to revascularize critical limb ischemia patients or performed in a second line of treatment in case of failure of endovascular...
NSHDS (Northern Sweden Health and Disease Study) is an umbrella term for a prospective biobank with related survey data. The sample collection consists of three subcohorts, Västerbotten I...
Sickle cell anemia and sickle cell thalassemia are frequent diseases among the israeli arab population. The purpose of this study is to assess the clinical characteristics of the patients ...
This cross-sectional study, utilizing two sets of questionaire designed for patients and physicians respectively, aims at the epidemiology, the clinical features, and the current status of...
An arthropod subclass (Xiphosura) comprising the North American (Limulus) and Asiatic (Tachypleus) genera of horseshoe crabs.
A family of freshwater fish of the order ESOCIFORMES, comprising the pikes, inhabiting the waters of the Northern Hemisphere. There is one genus, Esox, with five species: northern pike, grass pickerel, chain pickerel, muskellunge, and Amur pike.
An array of tests used to determine the toxicity of a substance to living systems. These include tests on clinical drugs, foods, and environmental pollutants.
Volative flammable fuel (liquid hydrocarbons) derived from crude petroleum by processes such as distillation reforming, polymerization, etc.
All of Africa except Northern Africa (AFRICA, NORTHERN).
Stress is caused by your perception of situations around you and then the reaction of your body to them. The automatic stress response to unexpected events is known as 'fight or flight'. Discovered by Walter Cannon in 1932, it is the release of h...
Adhd Anorexia Depression Dyslexia Mental Health Psychiatry Schizophrenia Stress Mental health, although not being as obvious as physical health, is very important, causing great unhappiness to those affected, causing add...