Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

{null=A microcosm experiment on the effects of permethrin on a free-living nematode assemblage, en=A microcosm experiment on the effects of permethrin on a free-living nematode assemblage}

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

For more content, see Nematologica.

{null=Microcosms were used to assess the impact of permethrin on the abundance and diversity of free-living marine nematodes. The nematodes were exposed to three permethrin concentrations (50, 100 and 150 μg l–1), and the effects were examined after 25 days. The abundances of nematodes at all permethrin concentrations significantly exceeded those in the controls. Multivariate analyses demonstrated that responses of nematode species to permethrin treatments were varied: Pselionema sp., Prochromadorella neapolitana and Spirinia gerlachi were eliminated at the low dose and seemed to be species intolerant to permethrin; Trichotheristus mirabilis and Xyala striata, which increased with increasing contamination levels, seemed to be 'opportunistic' and/or 'resistant' species. Results showed significant differences between univariate measures of diversity of control nematodes and those from permethrin- contaminated microcosms, where all decreased significantly with increasing abundance of the most tolerant species to permethrin. The use of microcosms has allowed the effects of permethrin on nematodes to be assessed individually, which is not possible in the field., en=<p>Microcosms were used to assess the impact of permethrin on the abundance and diversity of free-living marine nematodes. The nematodes were exposed to three permethrin concentrations (50, 100 and 150 <i>&#x3BC;</i>g l<sup>&#x2212;1</sup>), and the effects were examined after 25 days. The abundances of nematodes at all permethrin concentrations significantly exceeded those in the controls. Multivariate analyses demonstrated that responses of nematode species to permethrin treatments were varied&#x3A; <i>Pselionema</i> sp., <i>Prochromadorella neapolitana</i> and <i>Spirinia gerlachi</i> were eliminated at the low dose and seemed to be species intolerant to permethrin; <i>Trichotheristus mirabilis</i> and <i>Xyala striata</i>, which increased with increasing contamination levels, seemed to be &#x2018;opportunistic&#x2019; and&#x2F;or &#x2018;resistant&#x2019; species. Results showed significant differences between univariate measures of diversity of control nematodes and those from permethrin-contaminated microcosms, where all decreased significantly with increasing abundance of the most tolerant species to permethrin. The use of microcosms has allowed the effects of permethrin on nematodes to be assessed individually, which is not possible in the field.</p>}

Affiliations: 1: Coastal Ecology and Ecotoxicology Unit, Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerte, University of Carthage, 7021 Zarzouna, Tunisia;, Email: fehmiboufahja@yahoo.fr; 2: Coastal Ecology and Ecotoxicology Unit, Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerte, University of Carthage, 7021 Zarzouna, Tunisia

Loading

Full text loading...

/content/journals/10.1163/138855411x576628
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/138855411x576628
Loading

Article metrics loading...

/content/journals/10.1163/138855411x576628
2011-05-26
2016-12-05

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Nematology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation