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SUSPENSION-FEEDING IN MARINE SPONGES HALICHONDRIA-PANICEA AND HALICLONA-URCEOLUS - EFFECTS OF TEMPERATURE ON FILTRATION-RATE AND ENERGY-COST OF PUMPING
Filtration rate (measured as clearance of algal cells) was measured at different temperatures in the sponge Halichondna panicea. An increase in water temperature from 6 to 12 "C caused the mean… Expand
Metabonomic assessment of toxicity of 4-fluoroaniline, 3,5-difluoroaniline and 2-fluoro-4-methylaniline to the earthworm Eisenia veneta (Rosa): identification of new endogenous biomarkers.
- J. Bundy, E. Lenz, +12 authors Huiru Tang
- Chemistry, Medicine
- Environmental toxicology and chemistry
- 1 September 2002
Changes in endogenous metabolites visible in 600-MHz 1H NMR spectra of tissue extracts investigated could potentially be used as novel biomarkers of xenobiotic toxicity and could be used to determine the mechanism of action of other toxic chemicals. Expand
Relative sensitivity of life-cycle and biomarker responses in four earthworm species exposed to zinc
The biomarker was predictive of life-cycle effects in some earthworm species, although not the other two species tested, and was more sensitive to zinc than Lumbricus terrestris and Eisenia fetida in all cases. Expand
Impacts of mercury contaminated mining waste on soil quality, crops, bivalves, and fish in the Naboc River area, Mindanao, Philippines.
- J. D. Appleton, J. Weeks, J. Calvez, C. Beinhoff
- Environmental Science, Medicine
- The Science of the total environment
- 1 February 2006
Rice paddy fields in the Naboc area, near Monkayo on the island of Mindanao, Philippines, have been irrigated four times a year over the last decade using Naboc River water contaminated with mercury (Hg) by artisanal gold mining in the Diwalwal area, contributing to the population mercury exposure. Expand
Neutral red retention by lysosomes from earthworm (Lumbricus rubellus) coelomocytes: A simple biomarker of exposure to soil copper
A simple subcellular histochemical staining technique employing the lysosomal probe neutral red has been developed for use with the epiendogeic earthworm Lumbricus rubellus Hoffmeister and has potential for the rapid assessment of the toxic effects to earthworms from soils contaminated with heavy metals and metalloids. Expand
Environmental Metabonomics: Applying Combination Biomarker Analysis in Earthworms at a Metal Contaminated Site
The utility of NMR spectroscopy in detecting previously unknown potential biomarkers for ecotoxicity testing is demonstrated and maltose is identified as a potential biomarker compound deserving of further study. Expand
Accumulation of copper, zinc, cadmium and chromium by the marine sponge Halichondria panicea Pallas and the implications for biomonitoring
This study has shown that the cosmopolitan marine demosponge Halichondria panicea Pallas accumulated Cu, Zn and Cd in direct proportion to the concentration of the dissolved metals in the surrounding medium. Expand
Evaluation of the impacts of land-based contaminants on the benthic faunas of Jakarta Bay, Indonesia
Dans le cadre du programme Contamination Continent-Ocean (LOCS, Land-Ocean Contamination Study), l'impact des contaminants terrestres sur la faune benthique du golfe de Djakarta (Indonesie) a ete… Expand
Exposure of sticklebacks (Gasterosteus aculeatus) to cadmium sulfide nanoparticles: biological effects and the importance of experimental design.
- M. Sanders, M. Sebire, +6 authors S. Feist
- Chemistry, Medicine
- Marine environmental research
- 1 July 2008
The number of males engaged in nest-building behaviour following exposure to 500 microg l(-1) nCdS was reduced and livers of 4/6 fish in the same treatment displayed hepatocellular nuclear pleomorphism, highlighting the fundamental importance of experimental design and the need to understand the behaviour of nanoparticles in the aqueous phase. Expand
A summary of eleven years progress in earthworm ecotoxicology.
Overall, advances have been made in many areas and there is now improved understanding of factors that can modify the effects of chemicals in dynamic ecosystems and also of the mechanistic basis of toxicosis (although many uncertainties still remain in these areas). Expand