Relationships between fish assemblages, macrophytes and environmental gradients in the Amazon River floodplain
Identifieur interne : 000484 ( Main/Exploration ); précédent : 000483; suivant : 000485Relationships between fish assemblages, macrophytes and environmental gradients in the Amazon River floodplain
Auteurs : P. Petry [États-Unis] ; P. B. Bayley ; D. F. MarkleSource :
- Journal of Fish Biology [ 0022-1112 ] ; 2003-09.
English descriptors
- KwdEn :
Abstract
During the flood season of 1992–1993, 139 species of fishes were collected from a floodplain lake system in the central Amazon Basin. Fish species distribution was examined relative to abiotic variables in seven vegetation strata on Marchantaria Island, Solimões River. Both environmental variables and species distributions were influenced by a river channel to floodplain‐interior gradient. Species diversity was significantly higher in vegetated areas than in unvegetated areas, with deeper water Paspalum repens stands harbouring the highest diversity. As a result, species richness and catches were positively related to habitat complexity, while catch was also negatively related to dissolved oxygen (DO) and water depth. Low DO and shallow waters appeared to act as a refuge from predation. Fish assemblages were related to water chemistry, but species richness was not. Canonical correspondence analysis provided evidence that floodplain fish assemblages formed by the 76 most common species were influenced by physical variables, macrophyte coverage and habitat complexity, which jointly accounted for 67% of the variance of fish species assemblages. Omnivores showed no pattern relative to the river channel to floodplain‐interior gradient while detritivores were more likely to be found at interior floodplain sites and piscivores closer to the river. Piscivores could be further separated into three groups, one with seven species associated with free‐floating macrophytes in deep water, a second with five species found in shallow waters with rooted grasses and a third with six open water orientated species. The results suggest that fish assemblages in the Amazon floodplain are not random associations of species.
Url:
DOI: 10.1046/j.1095-8649.2003.00169.x
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000437
- to stream Istex, to step Curation: 000437
- to stream Istex, to step Checkpoint: 000225
- to stream Main, to step Merge: 000486
- to stream Main, to step Curation: 000484
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Relationships between fish assemblages, macrophytes and environmental gradients in the Amazon River floodplain</title>
<author><name sortKey="Petry, P" sort="Petry, P" uniqKey="Petry P" first="P." last="Petry">P. Petry</name>
</author>
<author><name sortKey="Bayley, P B" sort="Bayley, P B" uniqKey="Bayley P" first="P. B." last="Bayley">P. B. Bayley</name>
</author>
<author><name sortKey="Markle, D F" sort="Markle, D F" uniqKey="Markle D" first="D. F." last="Markle">D. F. Markle</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:C2C046231A197686F4031BA4A648F582ADCE46CF</idno>
<date when="2003" year="2003">2003</date>
<idno type="doi">10.1046/j.1095-8649.2003.00169.x</idno>
<idno type="url">https://api.istex.fr/document/C2C046231A197686F4031BA4A648F582ADCE46CF/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000437</idno>
<idno type="wicri:Area/Istex/Curation">000437</idno>
<idno type="wicri:Area/Istex/Checkpoint">000225</idno>
<idno type="wicri:doubleKey">0022-1112:2003:Petry P:relationships:between:fish</idno>
<idno type="wicri:Area/Main/Merge">000486</idno>
<idno type="wicri:Area/Main/Curation">000484</idno>
<idno type="wicri:Area/Main/Exploration">000484</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Relationships between fish assemblages, macrophytes and environmental gradients in the Amazon River floodplain</title>
<author><name sortKey="Petry, P" sort="Petry, P" uniqKey="Petry P" first="P." last="Petry">P. Petry</name>
<affiliation></affiliation>
<affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Bio‐Amazonia Conservation Intl., 13024 Main St. Leo, IN 46765</wicri:regionArea>
<placeName><region type="state">Indiana</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Bayley, P B" sort="Bayley, P B" uniqKey="Bayley P" first="P. B." last="Bayley">P. B. Bayley</name>
<affiliation><wicri:noCountry code="subField">and</wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="Markle, D F" sort="Markle, D F" uniqKey="Markle D" first="D. F." last="Markle">D. F. Markle</name>
<affiliation><wicri:noCountry code="subField">and</wicri:noCountry>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Journal of Fish Biology</title>
<idno type="ISSN">0022-1112</idno>
<idno type="eISSN">1095-8649</idno>
<imprint><publisher>Blackwell Science Ltd</publisher>
<pubPlace>Oxford, UK</pubPlace>
<date type="published" when="2003-09">2003-09</date>
<biblScope unit="volume">63</biblScope>
<biblScope unit="issue">3</biblScope>
<biblScope unit="page" from="547">547</biblScope>
<biblScope unit="page" to="579">579</biblScope>
</imprint>
<idno type="ISSN">0022-1112</idno>
</series>
<idno type="istex">C2C046231A197686F4031BA4A648F582ADCE46CF</idno>
<idno type="DOI">10.1046/j.1095-8649.2003.00169.x</idno>
<idno type="ArticleID">JFB169</idno>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0022-1112</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Amazon River floodplain</term>
<term>aquatic macrophytes</term>
<term>environmental gradients</term>
<term>fish assemblages structure</term>
</keywords>
</textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">During the flood season of 1992–1993, 139 species of fishes were collected from a floodplain lake system in the central Amazon Basin. Fish species distribution was examined relative to abiotic variables in seven vegetation strata on Marchantaria Island, Solimões River. Both environmental variables and species distributions were influenced by a river channel to floodplain‐interior gradient. Species diversity was significantly higher in vegetated areas than in unvegetated areas, with deeper water Paspalum repens stands harbouring the highest diversity. As a result, species richness and catches were positively related to habitat complexity, while catch was also negatively related to dissolved oxygen (DO) and water depth. Low DO and shallow waters appeared to act as a refuge from predation. Fish assemblages were related to water chemistry, but species richness was not. Canonical correspondence analysis provided evidence that floodplain fish assemblages formed by the 76 most common species were influenced by physical variables, macrophyte coverage and habitat complexity, which jointly accounted for 67% of the variance of fish species assemblages. Omnivores showed no pattern relative to the river channel to floodplain‐interior gradient while detritivores were more likely to be found at interior floodplain sites and piscivores closer to the river. Piscivores could be further separated into three groups, one with seven species associated with free‐floating macrophytes in deep water, a second with five species found in shallow waters with rooted grasses and a third with six open water orientated species. The results suggest that fish assemblages in the Amazon floodplain are not random associations of species.</div>
</front>
</TEI>
<affiliations><list><country><li>États-Unis</li>
</country>
<region><li>Indiana</li>
</region>
</list>
<tree><noCountry><name sortKey="Bayley, P B" sort="Bayley, P B" uniqKey="Bayley P" first="P. B." last="Bayley">P. B. Bayley</name>
<name sortKey="Markle, D F" sort="Markle, D F" uniqKey="Markle D" first="D. F." last="Markle">D. F. Markle</name>
</noCountry>
<country name="États-Unis"><region name="Indiana"><name sortKey="Petry, P" sort="Petry, P" uniqKey="Petry P" first="P." last="Petry">P. Petry</name>
</region>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Eau/explor/ScalaireV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000484 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000484 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Eau |area= ScalaireV1 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:C2C046231A197686F4031BA4A648F582ADCE46CF |texte= Relationships between fish assemblages, macrophytes and environmental gradients in the Amazon River floodplain }}
This area was generated with Dilib version V0.6.27. |