Experimental validation of the "relative volume of the pharyngeal lumen (RVPL)" of free-living nematodes as a biomonitoring index using sediment-associated metals and/or Diesel Fuel in microcosms
Identifieur interne : 000362 ( Main/Exploration ); précédent : 000361; suivant : 000363Experimental validation of the "relative volume of the pharyngeal lumen (RVPL)" of free-living nematodes as a biomonitoring index using sediment-associated metals and/or Diesel Fuel in microcosms
Auteurs : F. Boufahja [Tunisie] ; A. Hedfi [Tunisie] ; J. Amorri [Tunisie] ; P. Aïssa [Tunisie] ; E. Mahmoudi [Tunisie] ; H. Beyrem [Tunisie]Source :
- Journal of experimental marine biology and ecology [ 0022-0981 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Métal, Milieu marin.
English descriptors
- KwdEn :
Abstract
Since 1981, many numerical indices have been developed for meiobenthic nematodes but later discarded. To overcome problems and drawbacks in this type of indices, the "relative volume of the pharyngeal lumen (RVPL)" was first introduced in biological assessments in 2006 and it focused on the assumption that pollution is commonly expressed in terms of reduced food intake. This index, evaluated by using a morphometric approach, expresses the sucking potential of the pharynx. A series of microcosm experiments was performed in order to test the "relative volume of the pharyngeal lumen (RVPL)" as a biomonitoring index in the cases of 8 free-living nematode species (the deposit-feeders, Daptonema normandicum, Desmodora longiseta, and Leptonemella aphanothecae; the epistrate feeder, Xyala striata; the facultative predators, Oncholaimus campylocercoides and Oncholaimellus mediterraneus; and the predators Bathylaimus capacosus and Mesacanthion hirsutum). Each species was exposed to various concentrations of toxicants (nickel, copper, chromium and Diesel Fuel) used separately or in combinations. Our results showed that RVPL increased with increasing amount of toxicants, visibly caused by a systematic decrease in body volume with toxicants. Responses of all examined species suggested an additive toxicological action. Predators (M. hirsutum and B. capacosus) showed the highest potential of adaptation because of their higher means of RVPL Observations during this experiment highlight the importance of pharyngeal pumping and cuticular structure to tolerating elevated catabolic water loss under stress conditions. Thus the ability to osmoregulate is an important factor in overcoming food sedimentary toxicants. Based on all these findings, RVPL was found to be an accurate and precise index of monitoring the effect of metals and Diesel Fuel in marine ecosystems.
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000130
- to stream PascalFrancis, to step Curation: 000311
- to stream PascalFrancis, to step Checkpoint: 000126
- to stream Main, to step Merge: 000371
- to stream Main, to step Curation: 000362
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Experimental validation of the "relative volume of the pharyngeal lumen (RVPL)" of free-living nematodes as a biomonitoring index using sediment-associated metals and/or Diesel Fuel in microcosms</title>
<author><name sortKey="Boufahja, F" sort="Boufahja, F" uniqKey="Boufahja F" first="F." last="Boufahja">F. Boufahja</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Hedfi, A" sort="Hedfi, A" uniqKey="Hedfi A" first="A." last="Hedfi">A. Hedfi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Amorri, J" sort="Amorri, J" uniqKey="Amorri J" first="J." last="Amorri">J. Amorri</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Aissa, P" sort="Aissa, P" uniqKey="Aissa P" first="P." last="Aïssa">P. Aïssa</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Mahmoudi, E" sort="Mahmoudi, E" uniqKey="Mahmoudi E" first="E." last="Mahmoudi">E. Mahmoudi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Beyrem, H" sort="Beyrem, H" uniqKey="Beyrem H" first="H." last="Beyrem">H. Beyrem</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">INIST</idno>
<idno type="inist">11-0186651</idno>
<date when="2011">2011</date>
<idno type="stanalyst">PASCAL 11-0186651 INIST</idno>
<idno type="RBID">Pascal:11-0186651</idno>
<idno type="wicri:Area/PascalFrancis/Corpus">000130</idno>
<idno type="wicri:Area/PascalFrancis/Curation">000311</idno>
<idno type="wicri:Area/PascalFrancis/Checkpoint">000126</idno>
<idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000126</idno>
<idno type="wicri:doubleKey">0022-0981:2011:Boufahja F:experimental:validation:of</idno>
<idno type="wicri:Area/Main/Merge">000371</idno>
<idno type="wicri:Area/Main/Curation">000362</idno>
<idno type="wicri:Area/Main/Exploration">000362</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Experimental validation of the "relative volume of the pharyngeal lumen (RVPL)" of free-living nematodes as a biomonitoring index using sediment-associated metals and/or Diesel Fuel in microcosms</title>
<author><name sortKey="Boufahja, F" sort="Boufahja, F" uniqKey="Boufahja F" first="F." last="Boufahja">F. Boufahja</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Hedfi, A" sort="Hedfi, A" uniqKey="Hedfi A" first="A." last="Hedfi">A. Hedfi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Amorri, J" sort="Amorri, J" uniqKey="Amorri J" first="J." last="Amorri">J. Amorri</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Aissa, P" sort="Aissa, P" uniqKey="Aissa P" first="P." last="Aïssa">P. Aïssa</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Mahmoudi, E" sort="Mahmoudi, E" uniqKey="Mahmoudi E" first="E." last="Mahmoudi">E. Mahmoudi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Beyrem, H" sort="Beyrem, H" uniqKey="Beyrem H" first="H." last="Beyrem">H. Beyrem</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit</s1>
<s2>7021 Zarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Tunisie</country>
<wicri:noRegion>7021 Zarzouna</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Journal of experimental marine biology and ecology</title>
<title level="j" type="abbreviated">J. exp. mar. biol. ecol.</title>
<idno type="ISSN">0022-0981</idno>
<imprint><date when="2011">2011</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Journal of experimental marine biology and ecology</title>
<title level="j" type="abbreviated">J. exp. mar. biol. ecol.</title>
<idno type="ISSN">0022-0981</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biological monitoring</term>
<term>Diesel fuel</term>
<term>Experimental study</term>
<term>Marine environment</term>
<term>Metal</term>
<term>Microcosm</term>
<term>Nematoda</term>
<term>Sediments</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Surveillance biologique</term>
<term>Sédiment</term>
<term>Métal</term>
<term>Carburant diesel</term>
<term>Microcosme</term>
<term>Milieu marin</term>
<term>Nematoda</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Métal</term>
<term>Milieu marin</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Since 1981, many numerical indices have been developed for meiobenthic nematodes but later discarded. To overcome problems and drawbacks in this type of indices, the "relative volume of the pharyngeal lumen (RVPL)" was first introduced in biological assessments in 2006 and it focused on the assumption that pollution is commonly expressed in terms of reduced food intake. This index, evaluated by using a morphometric approach, expresses the sucking potential of the pharynx. A series of microcosm experiments was performed in order to test the "relative volume of the pharyngeal lumen (RVPL)" as a biomonitoring index in the cases of 8 free-living nematode species (the deposit-feeders, Daptonema normandicum, Desmodora longiseta, and Leptonemella aphanothecae; the epistrate feeder, Xyala striata; the facultative predators, Oncholaimus campylocercoides and Oncholaimellus mediterraneus; and the predators Bathylaimus capacosus and Mesacanthion hirsutum). Each species was exposed to various concentrations of toxicants (nickel, copper, chromium and Diesel Fuel) used separately or in combinations. Our results showed that RVPL increased with increasing amount of toxicants, visibly caused by a systematic decrease in body volume with toxicants. Responses of all examined species suggested an additive toxicological action. Predators (M. hirsutum and B. capacosus) showed the highest potential of adaptation because of their higher means of RVPL Observations during this experiment highlight the importance of pharyngeal pumping and cuticular structure to tolerating elevated catabolic water loss under stress conditions. Thus the ability to osmoregulate is an important factor in overcoming food sedimentary toxicants. Based on all these findings, RVPL was found to be an accurate and precise index of monitoring the effect of metals and Diesel Fuel in marine ecosystems.</div>
</front>
</TEI>
<affiliations><list><country><li>Tunisie</li>
</country>
</list>
<tree><country name="Tunisie"><noRegion><name sortKey="Boufahja, F" sort="Boufahja, F" uniqKey="Boufahja F" first="F." last="Boufahja">F. Boufahja</name>
</noRegion>
<name sortKey="Aissa, P" sort="Aissa, P" uniqKey="Aissa P" first="P." last="Aïssa">P. Aïssa</name>
<name sortKey="Amorri, J" sort="Amorri, J" uniqKey="Amorri J" first="J." last="Amorri">J. Amorri</name>
<name sortKey="Beyrem, H" sort="Beyrem, H" uniqKey="Beyrem H" first="H." last="Beyrem">H. Beyrem</name>
<name sortKey="Hedfi, A" sort="Hedfi, A" uniqKey="Hedfi A" first="A." last="Hedfi">A. Hedfi</name>
<name sortKey="Mahmoudi, E" sort="Mahmoudi, E" uniqKey="Mahmoudi E" first="E." last="Mahmoudi">E. Mahmoudi</name>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/NickelMaghrebV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000362 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000362 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Terre |area= NickelMaghrebV1 |flux= Main |étape= Exploration |type= RBID |clé= Pascal:11-0186651 |texte= Experimental validation of the "relative volume of the pharyngeal lumen (RVPL)" of free-living nematodes as a biomonitoring index using sediment-associated metals and/or Diesel Fuel in microcosms }}
This area was generated with Dilib version V0.6.27. |