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101.
102.
Blondet Antonine Martin Guillaume Paulic Laurent Perrard Marie-Hélène Durand Philippe 《Environmental science and pollution research international》2021,28(21):26606-26616
Environmental Science and Pollution Research - Many toxicants are present in water as a mixture. Male infertility is one of the environmental impacts in developed countries. Using our rat... 相似文献
103.
Anthony Shun Fung Chiu Jon V. Ward Guillaume Massard 《Journal of Cleaner Production》2009,17(14):1237-1240
This special issue of the Journal of Cleaner Production was initiated as a result of the 5th and 6th meetings of the Asia Pacific Roundtable for Sustainable Consumption and Production (APRSCP), which were held in Melbourne, Australia and Hanoi, Vietnam, respectively. A need identified at those meetings was to create another means of communicating the best ideas and papers being presented, to a wider audience. The Asia Pacific region has special development needs given its rapid emergence as a global production hub, but coupled to that are also the rapid social adjustments and shifts in patterns of consumption and production which aren't positive for the environment. This special issue contains eight papers covering the implementation of cleaner production and life cycle principles at the systems and regional planning level. These articles cover urban development, corporate CP programs, supply chain management, eco-industrial networks, and industrial parks, recycling, and understanding the role of human factors in bringing about environmental change. 相似文献
104.
The aim of this study is to investigate the trace elements (TE) contents of potential biomonitors in a historical Zn–Pb mining district: apiary products (honey, royal-jelly and beeswax) lichen and moss were sampled and analysed. In spite of high TE concentrations in mining waste and soil, apiary products are free of TE contamination originating from historical mining. Lichen/moss show high TE levels, which suggest atmospheric input of local dust. Pb isotopes analysis proved the origin of TE found in lichen/moss to be mainly mining waste. These results help discuss the choice of relevant organisms for monitoring TE in the environment and bring additional data on the potential impacts of brownfields left after mining, especially on food products from apiaries. 相似文献
105.
An experimental study was conducted in a 91.4-ha Mediterranean vineyard catchment in southern France to characterize the fate and transport of oryzalin in runoff water and thus to assess the risk of contamination of surface waters. Oryzalin concentrations in soil were monitored on two fields, one no-till and one tilled from March 1998 to March 2000. Concentrations in solution and on solid phase of runoff water were measured at the outlets of both fields and the catchment. The droughts in the two summer periods reduced the dissipation of oryzalin and increased its field half-life up to 35 days. Consequently, oryzalin was detected throughout the year in runoff water, with maximum dissolved concentrations > 600 microg l(-1) at the field scale. Oryzalin transport essentially occurred in solution. At the no-till field, seasonal losses were 2.29% and 1.89% of the applied amount in 1998 and 1999, respectively. The corresponding values at the tilled field were 1.56% and 0.29%, since tillage reduced total losses by reducing surface runoff. At the catchment scale, oryzalin concentrations were smaller than those at the field scale, due to dilution effects and staggering of application. Large part of the overland flow from the fields reinfiltrated in the ditches before reaching the outlet of the catchment. As a result, seasonal oryzalin losses were <0.2% of the applied amount. 相似文献
106.
The cytochrome P450, identified by the characteristic 450 nm spectral peak of its carbon monoxide complex, was detected in the hepatopancreatic microsomes ofMytilus galloprovincialis, collected from Ponteau (Bay of Fos, France) in 1982 and 1983. When mussels were exposed to a variety of petroleum hydrocarbons, the cytochrome P450 content increased. It is shown that aromatic hydrocarbons are more effective than alkanes in inducing a high level of cytochrome P450. The possible use of this haemoprotein in hydrocarbon pollutant detection is discussed. 相似文献
107.
The marine fish Mugil cephalus was caught in the Bay of Marseilles (France) in 1985 and the liver microsomal cytochrome P450 was identified at a concentration of about 0.230 nmol mg-1 protein. Optimal assay conditions were established to measure two mixed-function cytochrome P450-dependent oxidases: aniline hydroxylase and p-nitroanisole O-demethylase. Induction of cytochrome P450 occurred after exposure of mullet to an aromatic hydrocarbon and a water-soluble petroleum fraction. The liver cytochrome
P450 was solubilized and purified. The monomer molecular weight of partially purified cytochrome P450, determined by sodium dodecyl-sulfate-gel electrophoresis, was 51 000. 相似文献
108.
Andrew D. Irving David Balata Francesco Colosio Guillaume A. Ferrando Laura Airoldi 《Marine Biology》2009,156(6):1223-1231
Recruitment is essential for the maintenance of populations, but far more is typically known about the more easily-observed
adult stages than their smaller, often microscopic early life-history counterparts. This discrepancy can be particularly problematic
for populations of foundation species that create biogenic habitat for a multitude of other taxa, but are themselves prime
candidates for exploitation, fragmentation, and loss, and therefore become the focus of restoration efforts partly or fully
dependent on recruitment. The purpose of this study was to improve ecological understanding for early life-history stages
of the habitat-forming marine alga Cystoseira barbata (Stackhouse) C. Agardh (Fucales: Sargassaceae), member of a genus that has experienced considerable fragmentation and population
decline on European coasts. Using experimental manipulations of water temperature, light intensity, and sediment accumulation,
we observed that sediment virtually precluded recruitment of C. barbata, and greatly impacted the survival of recently settled germlings (up to ~83% mortality). Stronger intensities of light facilitated
the growth of germlings, including the capacity for ~50% of them to outgrow detrimental sediment and survive. Temperature
(10 vs. 16°C) had no effect on early recruitment, survival, or growth. This information helps to identify likely causes and
locations of recruitment failure, and by extension, the conditions needed (either naturally or through human intervention)
to facilitate recruitment and possible habitat restoration. Ultimately, this knowledge can increase our capacity to predict
population persistence and the likely success of restoration efforts. 相似文献
109.
Arnaud Da Silva Valentijn van den Brink Guillaume Emaresi Ester Luzio Pierre Bize Amélie N. Dreiss Alexandre Roulin 《Behavioral ecology and sociobiology》2013,67(7):1041-1052
Nest and territory defence are risky and potentially dangerous behaviours. If the resolution of life history trade-offs differs between individuals, the level of defence may also vary among individuals. Because melanin-based colour traits can be associated with life history strategies, differently coloured individuals may display different nest and territory defence strategies. We investigated this issue in the colour polymorphic tawny owl (Strix aluco) for which plumage varies from dark to light reddish melanic. Accordingly, we found that (1) our presence induced a greater response (flying around) from dark-coloured than light-coloured females and (2) dark reddish males suffered lower nest predation rates than light-coloured males. In experimentally enlarged broods, the probability that females reacted after we played back the hoot calls of a stranger male was higher if these females were lighter reddish; the opposite pattern was found in experimentally reduced broods with dark parents being more reactive than light parents. Finally, darker females alarmed more frequently when paired with a light than with a dark male, suggesting that partners adjust their behaviour to each other. We also tested whether colouration is used as a signal by conspecifics to adjust the level of their defensive behaviour. Accordingly, breeding females responded more vigorously to a dark than a light reddish stuffed tawny owl placed beside their nest. We conclude that melanin-based colouration is a signal of alternative nest and territory defence behaviour that depends on ecological factors. 相似文献
110.
Benni W. Hansen Guillaume Drillet Reinhardt M. Kristensen Thomas F. Sørensen Majken T. Tøttrup 《Marine Biology》2010,157(1):59-68
Close to 50 species of marine Calanoid copepods have been reported to produce diapause eggs (Engel and Hirche in J Plankton
Res 26:1083–1093, 2004); eggs that are viable but require a refractory phase before they hatch, sometimes after months. Diapause eggs are often
described as morphologically different with respect to egg membrane ultrastructure and having a thicker egg shell with surface
ornamentation as opposed to the smooth shell found in subitaneous eggs that hatch within days (Belmonte in J Mar Syst 15:35–39,
1998; Chen and Marcus in Mar Biol 127:587–597, 1997; Castro-Longoria in Crustaceana 74:225–236, 2001). Egg production rates, egg surface ornamentation, and hatching success were monitored in large aquaculture fish enclosures
during winter with close to zero water temperatures (N57°). Surprisingly, all female copepods (Acartia spp.—presumably A. tonsa, and Centropages hamatus) produced eggs all through the winter with no obvious pattern with respect to light, temperature and food availability, and
no diapause eggs were observed. However, individual females produced several categories of eggs with or without surface spines
even within the same egg batch as evidenced by scanning electron microscopy (SEM). Four egg categories were distinguishable:
‘no spines’, smooth eggs; ‘short spines’, 5–15 μm long; ‘truncated spines’, with the spine tips cut-off <10 μm long; and ‘long
spines’, up to 30 μm long. All egg categories remained unchanged with respect to surface structures from when we took them
out of the incubation bottles until they hatched. In general, the frequency of ‘no spines’ was 10–40%, and most eggs were
ornamented with ‘short-’ or ‘long spines’. Further, a given egg can be ornamented with all types of surface spines simultaneously,
which might even be a fifth egg category. The different egg categories were all able to hatch within days when exposed to
normoxic conditions suggesting that they were subitaneous. 相似文献