Showing papers in "Marine Environmental Research in 2006"

TL;DR: Investigation of differences in acute toxicity to Daphnia magna between THF-solubilized and water-stirred-nC60 as a range-find for further assays in adult male fathead minnow.

TL;DR: The potential prognostic use of lysosomal reactions to environmental pollutants is explored in relation to predicting animal health in marine mussels, based on diagnostic biomarker data and the use of coupled empirical measurements of biomarker reactions and modelling is proposed.

TL;DR: The results support the second hypothesis, indicating that even after a century an AR will mimic its adjacent NR communities only if it possesses structural features similar to those of the natural surroundings, however, if the two differ structurally, their communities will remain distinct.

TL;DR: The added data show that concentrations of lindane and high molecular weight PAHs are also decreasing on a national scale, while metals other than cadmium and zinc (in mussels), the added data reveal trends at more sites than in 1993 but no additional national trends.

TL;DR: The array experiment highlighted a number of candidate genes for further analysis as potential novel biomarkers of cadmium exposure and demonstrated the applicability of the custom microarray approach in the study of the effects of toxicants.

TL;DR: It is proposed that autophagic removal of oxidatively damaged organelles and proteins provides a second tier of defence against oxidative stress and speculated that organisms making up functional ecological assemblages in fluctuating environments, where up-regulation of autophagy should provide a selective advantage, may be pre-selected to be tolerant of pollutant-induced oxidative stress.

TL;DR: Monitoring data from surveys conducted in two major oil and gas production areas is summarized, and the results to concentrations of polycyclic aromatic hydrocarbons (PAH) in surface waters predicted by the dose-related risk and effect assessment model (DREAM).

TL;DR: Barnacles showed the best discrimination, but oysters are particularly recommended as biomonitors given their strong accumulation patterns for many trace metals, their large size and their local abundance.

TL;DR: The results indicate that the crumb rubber filtration alone did not achieve the target removal of invasive species, but could potentially be used as a primary treatment technology to enhance the efficiency of a secondary treatment process (e.g., disinfection).

TL;DR: Estimates of ecological risks to water-column communities based on data on hydrocarbon residues in soft tissues of blue mussels deployed for a month near offshore platforms and based on predictions of the Dose related Risk and Effect Assessment Model (DREAM) are compared.

TL;DR: The EF results indicated that the outfall area was significantly contaminated by dissolved Fe and Zn, and by particulate Fe, Cr, Cu, Pb and ZN, and most trace metals were chiefly in the particulate phase.

TL;DR: Results indicate that reproductive morphometric and endocrine biomarkers in croaker are sensitive to moderate hypoxia, and are potentially useful as early warning indicators of reproductive failure.

TL;DR: The failure to record any impact may be explained by the high natural variability that is a characteristic feature of bottoms of this type and also by the rapid dilution undergone by the hypersaline brine upon leaving the discharge pipe.

TL;DR: Evidence is provided that Douro estuary waters contain bioavailable PAHs that can be associated with the induction of cytochrome P450, and that mullets have the ability to metabolise and eliminatePAHs.

TL;DR: There was no evidence that the presence of VTG in the plasma of males is a natural part of their life cycle, and the possibility is suggested that large cod pick up oestrogenic endocrine disrupters through the food chain.

TL;DR: Zooplankton species distribution and abundance data at 17 locations in the inshore, shelf and oceanic regions off northeast India during January 1999-April 2001 revealed 112 taxa represented by 30 divergent groups ofCopepods dominated (87%) the population numerically.

TL;DR: An integrated biomarker approach using different bioindicators, mussels, oysters and fish with different feeding habits was applied to evaluate the long term risk from Haven oil spill along the Ligurian coast (Italy), revealing an increase in MN frequency in caged mussels from Arenzano compared to the reference area after an interval of 4 months from the accident.

TL;DR: This study indicates that cetacean species are not equally sensitive to human-made noise disturbance, and source levels of acoustic alarms should be adapted to the species they are supposed to deter.

TL;DR: In this paper, the combined effects of temperature and cadmium stress on metabolism of oysters at the whole animal and mitochondrial levels were studied, and the results indicated that oyster populations may become more susceptible to trace metal pollution during seasonal warming and/or global climate change.

TL;DR: It is suggested that there is an urgent need to protect the health of Younggwang coastal marine ecosystem from the severe thermal impact by the large quantity of warm water discharged from the YoungGwang nuclear power plant.

TL;DR: Hg2+ was found to be the most potent metal inducer with the highest level of zMT mRNA induction in 8hpf embryo-larvae, followed by Cd2+ (approximately 20 folds); Cu2+ and Zn2+ only gave approximately 5 fold of induction.

TL;DR: The ability of S. spallanzanii to accumulate the microbial pollution indicators suggests this species can be employed as a bioindicator for monitoring water quality and provides a potential role in sewage bioremediation.

TL;DR: The results showed that the best environmental variables for assessing organic pollution were acid-volatile sulfides (AVS) and redox potential and that succession could not be accurately predicted due to the unique environmental parameters and the singular community functional structure of each location.

TL;DR: Employed biomarkers detected highest degree of disturbance in areas most impacted by the oil spill (Galicia) and were able to evidence a recovery trend during 2004, related to a decrease in total PAH concentrations in mussels.

TL;DR: Comparative analyses with the eutrophic and well-flushed Chiku Lagoon and non-eutrophic tropical lagoons show that high nutrient loadings might stimulate the growth and accumulation of phytoplankton and periphyton and therefore support high fishery yields.

TL;DR: Investigation of the impacts of mechanical beach cleaning on the strandline-associated meiofaunal assemblages, focussing on the free-living nematodes, found any impacts due to cleaning on species richness, Pielou's evenness and taxonomic diversity were shown to be minor in relation to the daily changes.

TL;DR: The results indicate that the use of suppression subtractive hybridisation and a macroarray is a robust method to discover novel pollutant-responsive genes in aquatic invertebrates.

TL;DR: The evidence suggested that the cells from C. edule are more sensitive to oxidative damage induced by H2O2 when compared with M. edulis, which demonstrates the potential application of sediment-dwelling C.Edule as a useful biomonitoring species.

TL;DR: The predominant presence of aliphatic carbon in the humic structures, the low degree of substitution and the high nitrogen content suggest that primarily humified compounds were formed in situ, and the River Po can act both as supplier of organic matter of which decomposition products lead to the formation of humic compound and as carrier of humification compounds.

TL;DR: The interspecific variations in bioaccumulation did not correlate with differences in feeding strategies, but may be caused by differences in biotransformation, and in age and size of the analysed specimens.