| Title |
Heavy Metal Accumulation in Lake Sediments, Fish (Oreochromis niloticus and Serranochromis thumbergi), and Crayfish (Cherax quadricarinatus) in Lake Itezhi-tezhi and Lake Kariba, Zambia
|
|---|---|
| Published in |
Archives of Environmental Contamination and Toxicology, February 2010
|
| DOI | 10.1007/s00244-010-9483-8 |
| Pubmed ID | |
| Authors |
Shouta M. M. Nakayama, Yoshinori Ikenaka, Kaampwe Muzandu, Kennedy Choongo, Balazs Oroszlany, Hiroki Teraoka, Naoharu Mizuno, Mayumi Ishizuka |
| Abstract |
We measured the level of heavy metal accumulation in lake sediments, herbivorous (Oreochromis niloticus) and carnivorous (Serranochromis thumbergi) fish, and crayfish (Cherax quadricarinatus) from Lake Itezhi-tezhi (ITT) and Lake Kariba. We used atomic absorption spectrophotometry to quantify the levels of seven heavy metals (Cr, Co, Cu, Zn, Cd, Pb, and Ni). The sediment and the herbivorous fish O. niloticus accumulated a very high concentration of Cu in Lake ITT, most likely due to the discharge of Cu waste from a mining area 450 km upstream. The aquatic species we sampled in Lake Kariba had higher concentrations of Cr, Ni, and Pb relative to those in Lake ITT. This is most likely due to anthropogenic activities, such as the use of leaded petrol and antifouling agents in marine paints. Interestingly, we observed a negative correlation between the coefficient of condition (K) and Ni concentration in the crayfish hepatopancreas. Both O. niloticus and the crayfish had much higher biota-sediment accumulation factors (BSAF) for Cu, Zn, and Cd relative to Cr, Co, Pb, and Ni. The rank of BSAF values for O. niloticus (Cu>Cd>Zn) and C. quadricarinatus (Zn>Cd>Cu) differed from the expected ranks based on the general order of affinity of metals (Cd>Zn>Cu). |
Mendeley readers
The data shown below were compiled from readership statistics for 103 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Egypt | 2 | 2% |
| Brazil | 1 | <1% |
| Zambia | 1 | <1% |
| Spain | 1 | <1% |
| Japan | 1 | <1% |
| Unknown | 97 | 94% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 23 | 22% |
| Researcher | 13 | 13% |
| Student > Ph. D. Student | 11 | 11% |
| Student > Bachelor | 6 | 6% |
| Other | 5 | 5% |
| Other | 16 | 16% |
| Unknown | 29 | 28% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 27 | 26% |
| Agricultural and Biological Sciences | 21 | 20% |
| Biochemistry, Genetics and Molecular Biology | 4 | 4% |
| Veterinary Science and Veterinary Medicine | 4 | 4% |
| Chemistry | 4 | 4% |
| Other | 11 | 11% |
| Unknown | 32 | 31% |
Attention Score in Context
This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 December 2022.
All research outputs
#4,998,889
of 23,920,246 outputs
Outputs from Archives of Environmental Contamination and Toxicology
#245
of 2,098 outputs
Outputs of similar age
#21,029
of 96,534 outputs
Outputs of similar age from Archives of Environmental Contamination and Toxicology
#2
of 6 outputs
Altmetric has tracked 23,920,246 research outputs across all sources so far. Compared to these this one has done well and is in the 76th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,098 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.6. This one has done well, scoring higher than 76% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 96,534 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 71% of its contemporaries.
We're also able to compare this research output to 6 others from the same source and published within six weeks on either side of this one. This one has scored higher than 4 of them.