Abstract:
:Dissolved organic matter (DOM) is comprised of a myriad of macromolecules with specific physical and chemical properties that may influence the bioavailability of hydrophobic pesticides to animals. This study was conducted to assess the role of various forms of DOM on the uptake and bioconcentration of the organophosphate insecticide chlorpyrifos (CHPY) to the bivalve Mercenaria mercenaria. Bivalves were exposed to DOM-free seawater (30 per thousand) or to seawater containing a single form of DOM. DOM forms included two filtrate fractions of natural salt-marsh sediment DOM (DOM-(<0.45 mum) and DOM-(<3 kDa)); natural purified humic (HA) and fulvic (FA) acids; and water soluble cyclic oligosaccharides alpha and beta cyclodextrins (CD-alpha and CD-beta). In (14)C-CHPY uptake and elimination experiments, juvenile bivalves were exposed to uniformly-labeled (14)C-CHPY and collected at time intervals during 48 h. The remaining bivalves were transferred to (14)C-CHPY-free elimination chambers with bivalve collection at time intervals over 144 h. Total uptake of (14)C-CHPY by bivalves in DOM-free seawater was >40% greater than in bivalves exposed to (14)C-CHPY in the presence of most DOM forms. These results are consistent with much faster (14)C-CHPY uptake rates estimated using a simple two parameter model. After the elimination period, bivalves exposed to DOM-free seawater had (14)C-CHPY body residue concentrations between 25% and 86% greater than bivalves in the presence of DOM forms. Experiments with larger bivalves showed that pulse-chase exposures with a 1.5 h exposure period to (14)C-CHPY was not long enough to detect differences in (14)C-CHPY tissue accumulation efficiencies across treatments. Our findings suggest that natural forms of DOM, at environmentally realistic organic carbon concentrations, reduced pesticide uptake and bioconcentration, consistent with much lower uptake rates relative to bivalves exposed to (14)C-CHPY in the absence of DOM. Interestingly, at the tested organic carbon concentrations CD-alpha and CD-beta did not reduce (14)C-CHPY bioconcentration in M. mercenaria.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Bejarano AC,Decho AW,Chandler GTdoi
10.1016/j.marenvres.2004.10.001keywords:
subject
Has Abstractpub_date
2005-07-01 00:00:00pages
111-30issue
1eissn
0141-1136issn
1879-0291pii
S0141-1136(04)00245-4journal_volume
60pub_type
杂志文章abstract::The seas worldwide are threatened by a "new" source of pollution. Munitions dumped into the seas worldwide will corrode and start to leak. Their impacts on the environment and on human health are now more than ever subject of scientific research. Bivalves are a first choice bioindicator and their importance is demonst...
journal_title:Marine environmental research
pub_type: 杂志文章,评审
doi:10.1016/j.marenvres.2020.105006
更新日期:2020-06-01 00:00:00
abstract::Oil pollution of the oceans has been a problem ever since man began to use fossil fuels. Biodegradation by naturally occurring populations of micro-organisms is a major mechanism for the removal of petroleum from the environment. To examine the effects of crude oil pollution on intertidal bacteria, we repeated the sam...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/s0141-1136(99)00080-x
更新日期:2000-06-01 00:00:00
abstract::Some subtidal habitats may experience extremely large diel temperature fluctuations. To explore the potential of subtidal animals to regulate their metabolic processes, we investigated how the oxygen consumption rate (MO2) of the sea urchin Mesocentrotus nudus changes in response to extreme temperature fluctuations by...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2019.01.003
更新日期:2019-02-01 00:00:00
abstract::During the summer of 1997, sediment core samples were taken at 25 stations in Santa Monica Bay. Toxicity testing was performed on 4-cm sections of the entire length of each core using purple sea urchin fertilization and amphipod survival tests. The sea urchin test identified sections as being toxic at six stations, al...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/S0141-1136(02)00335-5
更新日期:2003-07-01 00:00:00
abstract::Due to the increasing frequency and severity of the coral bleaching events in the context of global warming, there is an urgent need to improve our understanding of the susceptibility of corals to thermal stresses, particularly at the sub-cellular level. In this context, we examined the modulation of the polyp mitocho...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2014.06.008
更新日期:2014-08-01 00:00:00
abstract::The common sea star Asterias rubens represents a key-species of the North-Eastern Atlantic macro benthic community. The cells of their immune system, known as coelomocytes, are the first line of defence against environmental hazards. Here, we report the results of investigations on the immune cells response of sea sta...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2011.09.008
更新日期:2012-05-01 00:00:00
abstract::The mechanisms by which TBT produces modulations of the endocrine systems are not fully described. In this study, juvenile salmon were force-fed diet containing TBT (0: solvent control, 0.1, 1 and 10 mg/kg fish) for 72 h. Subsequently, fish exposed to solvent control and 10 mg/kg TBT were exposed to waterborne concent...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2010.01.005
更新日期:2010-01-01 00:00:00
abstract::Extensive research has shown that the early life stages of marine organisms are sensitive to ocean acidification (OA). Less is known, however, on whether larval settlement and metamorphosis may be affected, or by which mechanisms. These are key processes in the life cycle of most marine benthic organisms, since they m...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2020.104977
更新日期:2020-07-01 00:00:00
abstract::The potential impact of drill cuttings on the two deep water calcareous red algae Mesophyllum engelhartii and Lithothamnion sp. from the Peregrino oil field was assessed. Dispersion modelling of drill cuttings was performed for a two year period using measured oceanographic and discharge data with 24 h resolution. The...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2015.09.008
更新日期:2015-12-01 00:00:00
abstract::The 5900 MW Younggwang nuclear power station on the west coast of Korea discharges warm water affecting coastal ecology [KORDI report (2003). Wide area observation of the impact of the operation of Younggwang nuclear power plant 5 and 6, No. BSPI 319-00-1426-3, KORDI, Seoul, Korea]. Here the spatial and temporal chara...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2005.09.001
更新日期:2006-03-01 00:00:00
abstract::Coastal sediments subjected to high anthropogenic impacts can accumulate large amounts of polycyclic aromatic hydrocarbons (PAHs) and metals, demanding effective and eco-sustainable remediation solutions. In this study, we carried out bioremediation experiments on marine sediments highly contaminated with PAHs and met...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2020.105101
更新日期:2020-12-01 00:00:00
abstract::The macroalga Caulerpa prolifera colonized the Mar Menor coastal lagoon after the enlargement of the main inlet in 1972, coexisting now with the previous Cymodocea nodosa meadows. The physiological response and the photoacclimation capacity of both species were studied. For this purpose in vivo chlorophyll a fluoresce...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2012.05.001
更新日期:2012-08-01 00:00:00
abstract::The transcriptomic effects of Ibuprofen (IBU) in the digestive gland tissue of Mytilus galloprovincialis Lam. specimens exposed at low environmental concentrations (250 ng L(-1)) are presented. Using a 1.7 K feature cDNA microarray along with linear models and empirical Bayes statistical methods 225 differentially exp...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2016.05.010
更新日期:2016-08-01 00:00:00
abstract::Most artificial reef (AR) studies have examined the early colonization stages of benthic communities, while only a few have monitored the development of AR communities beyond the initial successional phases and evaluated the time scale needed for such development. In addition, despite the proliferation of AR studies, ...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2004.03.122
更新日期:2005-03-01 00:00:00
abstract::In aquatic organisms inhabiting polluted waters genes are activated to build an adaptive/compensatory defence against the possible effects of pollutants. Such responses can be used as biomarkers of exposure to chemical compounds, outlining the molecular mechanisms activated under specific pollution scenarios. With the...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2018.06.009
更新日期:2018-09-01 00:00:00
abstract::Natural storms are able to determine reworking of seabed up to considerable depths and favour suspension of sediment-associated chemicals. Yet, a direct link between exposure to resuspended contaminants and the biological effects on marine organisms have to be fully established. We exposed adults of a suspension feede...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2020.104950
更新日期:2020-06-01 00:00:00
abstract::Juvenile turbot (Scophthalmus maximus) were injected intraperitoneally with either corn oil or 5 mg/kg benzo[a]pyrene (BaP) dissolved in corn oil and sampled I and 3 days after injection. After 1 day, no elevation of 7-ethoxyresorufin O-deethylase (EROD) activity was observed, however bile metabolites (BaP-7,8 dihydro...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/s0141-1136(02)00192-7
更新日期:2002-09-01 00:00:00
abstract::Faunal assemblages of subtidal sedimentary environments are key components of coastal ecosystems. Benthic communities inhabiting the coastal zone near urban centers in Concepción Bay (Chile) have been described as highly disturbed (i.e. impoverished in diversity and species richness). This is due to the frequent prese...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2017.07.022
更新日期:2017-09-01 00:00:00
abstract::The development of rapid and sensitive diagnostic tools to assess the effect of stressors on organisms is a principal objective of environmental proteomics. This study is focused on evaluating the potential of using surface-enhanced laser desorption/ionisation time-of-flight mass spectrometry (SELDI-TOF MS) to assess ...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2006.04.002
更新日期:2006-07-01 00:00:00
abstract::Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants of the marine environment, arising predominantly from petrochemical contamination and pyrogenic sources. A biomarker of PAH exposure was employed in a field study (South West, Spain) in both captured (indigenous) and deployed (caged) shore crabs (Carcin...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2010.03.003
更新日期:2010-07-01 00:00:00
abstract::Nematode species composition, trophic structure and body size distributions were followed over an annual production cycle in the central North Sea; to test responses to temporally changing food quality and quantity in the sediment. Changes in the phytoplankton concentration in the water column were quantitatively refl...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2008.08.004
更新日期:2008-12-01 00:00:00
abstract::To investigate the biological impact of polycyclic aromatic hydrocarbons (PAHs) on reproductive system, scallops Chlamys farreri were continuously exposed to benzo[a]pyrene (BaP) (0.5, 3, 10microgL(-1)) during 15 days. DNA damage and histological alterations were examined in female gonad. DNA strand break levels signi...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2008.10.006
更新日期:2009-02-01 00:00:00
abstract::The removal of turbidity, particles, phytoplankton and zooplankton in water by crumb rubber filtration was investigated. A substantial reduction was achieved. Of the three variables, filter depth, media size and filtration rate, media size had the most significant influence. Smaller media size favored higher removal e...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2005.06.003
更新日期:2006-05-01 00:00:00
abstract::Identifying and quantifying microplastic in marine samples can be facilitated by removing natural organic matter (NOM). Cellulosic material, like chitin, however, are a type of NOM that is resistant to chemical digestion, and difficult to eliminate from samples. To address this, a two-step digestion method was develop...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2020.105080
更新日期:2020-10-01 00:00:00
abstract::Humic compounds were determined in sediments collected in an area of the Adriatic sea receiving fresh waters from the river Po. Sediment cores (10 cm) were sectioned into four layers which were analysed separately for redox potential (Eh), total phosphorus (TP), total organic carbon (TOC), humic (HA) and fulvic acid (...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2005.05.002
更新日期:2006-02-01 00:00:00
abstract::Physiological tolerances limit the distribution of marine species, with geographical ranges being set by environmental factors, such as temperature and salinity, which affect the rates of vital processes and survival of marine ectotherms. The physiological tolerances of the non-native marine amphipod Caprella mutica w...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2007.02.003
更新日期:2007-09-01 00:00:00
abstract::Mercury (Hg) in Atlantic cod (Gadus morhua) is one of many parameters that are monitored through OSPAR's Joint Assessment and Monitoring Programme. Time series for cod in the Inner Oslofjord (Norway) go back to 1984. Until 2014, annual median Hg-concentrations in cod from the Inner Oslofjord showed both significant up...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2017.07.018
更新日期:2017-09-01 00:00:00
abstract::The Ria Formosa lagoon is an ecosystem whose water quality reflects the anthropogenic influence upon the surrounding areas. In this lagoon, the clam Ruditapes decussatus has a great economical importance and has been widely used as a biomonitor. A multibiomarker approach (δ-aminolevulinic acid dehydratase, metallothio...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2011.09.012
更新日期:2012-04-01 00:00:00
abstract::In the light of the introduction of thousands of large offshore wind power foundations into the North Sea within the next decades, this manuscript focuses on the biofouling processes and likely reef effects. The study explores the macrozoobenthos (biofouling) colonization at an offshore platform which is comparable to...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2012.12.004
更新日期:2013-04-01 00:00:00
abstract::Coral reef ecosystems are declining at an alarming rate. Increasing seawater temperatures and occurrence of extreme warming events can impair sexual reproduction in reef-building corals and inhibit the ability for coral communities to replenish and persist. Here, we investigated the role of photophysiology on the repr...
journal_title:Marine environmental research
pub_type: 杂志文章
doi:10.1016/j.marenvres.2020.105200
更新日期:2021-01-01 00:00:00