Ecotoxicology
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Seasonal changes of metal accumulation and distribution in common club rush (Schoenoplectus lacustris) and common reed (Phragmites australis)
Ecotoxicology - Tập 16 - Trang 457-463 - 2007
In this study, two aquatic macrophytes Phragmites australis and Schoenoplectus
lacustris and corresponding sediment samples were collected every three months
from Lake Sapanca (Turkey) and analysed for their heavy-metal contents (Pb, Cr,
Cu, Mn, Ni, Zn and Cd). Accumulation factor ratios of plant parts were
calculated for all metals, and the two species were compared in terms of
accumulation prope...
Breeding near a landfill may influence blood metals (Cd, Pb, Hg, Fe, Zn) and metalloids (Se, As) in white stork (Ciconia ciconia) nestlings
Ecotoxicology - Tập 23 - Trang 1377-1386 - 2014
Cadmium, lead, mercury, selenium, iron, zinc and arsenic levels were measured in
blood samples from 59 free-ranging white stork nestlings from colonies located
in three different environmental conditions in Western Spain. The reference
colony was situated in “Llanos de Cáceres y Sierra de Fuentes”, an Area of
Special Interest for Bird Protection. A second colony was located close to
(4.9 km) an ur...
Source and trophic transfer of mercury in plankton from an ultraoligotrophic lacustrine system (Lake Nahuel Huapi, North Patagonia)
Ecotoxicology - Tập 23 - Trang 1184-1194 - 2014
The incorporation and trophic transfer of total and methyl mercury (THg, MeHg)
were examined in three size classes of plankton (10–53, 53–200, and >200 μm size
range) and a small planktivorous fish, Galaxias maculatus, from the large
multi-branched Lake Nahuel Huapi (North Patagonia, Argentina). Three sites
representing a large range of lake benthic–pelagic structures (based on depth
and shoreline...
Individual and combined toxic effects of herbicide atrazine and three insecticides on the earthworm, Eisenia fetida
Ecotoxicology - Tập 25 - Trang 991-999 - 2016
In the present study, we evaluated the individual and combined toxic effects of
herbicide atrazine and three insecticides (chlorpyrifos, lambda-cyhalothrin and
imidacloprid) on the earthworm, Eisenia fetida. Results from 48-h filter paper
test indicated that imidacloprid had the highest toxicity to E. fetida with an
LC50 of 0.05 (0.041–0.058) μg a.i. cm−2, followed by lambda-cyhalothrin and
atrazi...
Application of a novel method PCR-ligase detection reaction for tracking predator—prey trophic links in insect-resistant GM rice ecosystem
Ecotoxicology - Tập 20 - Trang 2090-2100 - 2011
Insect-resistant genetically modified (IRGM) rice is on the verge of commercial
release in China, however, its potential non-target effect on non-target insect
natural enemies remains controversial. Tracking trophic interactions between
predators and preys in IRGM rice ecosystem can provide new insights into better
understanding of the ecological risks of IRGM rice. In the present study, a
novel m...
The combined toxicity assessment of carp (Cyprinus carpio) acetylcholinesterase activity by binary mixtures of chlorpyrifos and four other insecticides
Ecotoxicology - Tập 23 - Trang 221-228 - 2013
Mixtures of organophosphate (OP) and carbamate (CB) insecticides are commonly
detected in freshwater habitats. These insecticides inhibit the activity of
acetylcholinesterase (AChE) and have potential to interfere with behaviors that
may be essential for survival of species. Although the effects of individual
anticholinesterase insecticides on aquatic species have been studied for
decades, the com...
Microbial availability of mercury: effective detection and organic ligand effect using a whole-cell bioluminescent bioreporter
Ecotoxicology - Tập 24 - Trang 2200-2206 - 2015
A luxCDABE-based genetically engineered bacterial bioreporter (Escherichia coli
ARL1) was used to detect bioavailable ionic mercury (Hg(II)) and investigate the
effects of humic acids and ethylenediaminetetraacetic acid (EDTA) on the
bioavailability of mercury in E. c oli. Results showed that the E. c oli ARL1
bioreporter was sensitive to mercury, with a detection limit of Hg(II) of
0.5 µg/L and a...
Toxicity of perfluoroalkyl substances (PFAS) toward embryonic stages of mahi-mahi (Coryphaena hippurus)
Ecotoxicology - Tập 31 - Trang 1057-1067 - 2022
Perfluoroalkyl substances (PFAS) are highly persistent organic pollutants that
have been detected in a wide array of environmental matrices and, in turn,
diverse biota including humans and wildlife wherein they have been associated
with a multitude of toxic, and otherwise adverse effects, including ecosystem
impacts. In the present study, we developed a toxicity assay for embryonic
stages of mahi-...
An environmental forensic approach for tropical estuaries based on metal bioaccumulation in tissues of Callinectes danae
Ecotoxicology - Tập 25 - Trang 91-104 - 2015
The blue crab Callinectes danae is distributed throughout the Atlantic coast and
this study aimed to evaluate a environmental forensics approach that could be
applied at tropical estuarine systems where this species is distributed, based
on the metal concentrations in its tissues. For this purpose, blue crab samples
were collected in 9 sites (distributed in 3 areas) along the Santos Estuarine
Syst...
So sánh độc tính sinh thái của các dạng đơn và hỗn hợp nhị phân của nickel và zinc đối với sự phát triển và các chỉ số sinh học của Lemna gibba Dịch bởi AI
Ecotoxicology - Tập 28 - Trang 686-697 - 2019
Mục tiêu của nghiên cứu này là so sánh độc tính sinh thái của nickel (Ni) và kẽm
(Zn) được thử nghiệm như các chất riêng lẻ và như một hỗn hợp nhị phân. Ngoài
ra, nghiên cứu xem xét việc tăng trưởng dân số và các chỉ số stress oxy hóa bị
ảnh hưởng ra sao, so sánh giữa sự tiếp xúc đơn và hỗn hợp nhị phân. Các bài kiểm
tra độc tính được thực hiện trên cây Lemna gibba sử dụng bài thử kéo dài 7 ngày.
...
#độc tính sinh thái #nickel #kẽm #hỗn hợp nhị phân #chỉ số sinh học #Lemna gibba
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