Diet and feeding habits of the small catfish, Clarias liocephalus in wetlands of Western Uganda
Identifieur interne : 000698 ( Main/Exploration ); précédent : 000697; suivant : 000699Diet and feeding habits of the small catfish, Clarias liocephalus in wetlands of Western Uganda
Auteurs : Jane Yatuha [Ouganda] ; Jeremiah Kang'Ombe [Malawi] ; Lauren Chapman [Canada]Source :
- African Journal of Ecology [ 0141-6707 ] ; 2013-09.
Abstract
Clarias liocephalus is an air‐breathing catfish inhabiting wetland and river systems in East Africa. This catfish is in high demand for sale as live bait in the Nile perch fishery of Lake Victoria and equally important in the diet of local communities in the lake basin. Wetland loss and increasing fishing pressure potentially threaten the persistence of C. liocephalus; however, little information exists on the ecology of this species to permit evaluation of current threats. This study quantified dietary characteristics of C. liocephalus from heavy and lightly fished wetlands in Western Uganda using numeric, gravimetric and volumetric indices on 492 stomach samples collected over one year. Clarias liocephalus was significantly smaller in three heavily fished sites, relative to the one in‐park site, likely a reflection of a size‐selective fishery. Across sites, C. liocephalus was a generalist feeder whose diet was dominated by aquatic dipteran larvae and plant material. The broad niche gives C. liocephalus an ecological advantage to forage effectively on a wide selection of prey. The significant presence of plant material shows that the species may utilize plant protein, an important consideration of diet requirements should the species be selected for aquaculture.
Url:
DOI: 10.1111/aje.12048
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000F56
- to stream Istex, to step Curation: 000F47
- to stream Istex, to step Checkpoint: 000355
- to stream Main, to step Merge: 000699
- to stream Main, to step Curation: 000698
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Diet and feeding habits of the small catfish, Clarias liocephalus in wetlands of Western Uganda</title>
<author><name sortKey="Yatuha, Jane" sort="Yatuha, Jane" uniqKey="Yatuha J" first="Jane" last="Yatuha">Jane Yatuha</name>
</author>
<author><name sortKey="Kang Ombe, Jeremiah" sort="Kang Ombe, Jeremiah" uniqKey="Kang Ombe J" first="Jeremiah" last="Kang'Ombe">Jeremiah Kang'Ombe</name>
</author>
<author><name sortKey="Chapman, Lauren" sort="Chapman, Lauren" uniqKey="Chapman L" first="Lauren" last="Chapman">Lauren Chapman</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:64F12104B8E56B1E938863DC1E2E28AEE49C5074</idno>
<date when="2013" year="2013">2013</date>
<idno type="doi">10.1111/aje.12048</idno>
<idno type="url">https://api.istex.fr/document/64F12104B8E56B1E938863DC1E2E28AEE49C5074/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000F56</idno>
<idno type="wicri:Area/Istex/Curation">000F47</idno>
<idno type="wicri:Area/Istex/Checkpoint">000355</idno>
<idno type="wicri:doubleKey">0141-6707:2013:Yatuha J:diet:and:feeding</idno>
<idno type="wicri:Area/Main/Merge">000699</idno>
<idno type="wicri:Area/Main/Curation">000698</idno>
<idno type="wicri:Area/Main/Exploration">000698</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Diet and feeding habits of the small catfish, Clarias liocephalus in wetlands of Western Uganda</title>
<author><name sortKey="Yatuha, Jane" sort="Yatuha, Jane" uniqKey="Yatuha J" first="Jane" last="Yatuha">Jane Yatuha</name>
<affiliation wicri:level="1"><country xml:lang="fr">Ouganda</country>
<wicri:regionArea>Department of Biology, Mbarara University of Science and Technology, PO Box 1410, Mbarara</wicri:regionArea>
<wicri:noRegion>Mbarara</wicri:noRegion>
</affiliation>
<affiliation></affiliation>
</author>
<author><name sortKey="Kang Ombe, Jeremiah" sort="Kang Ombe, Jeremiah" uniqKey="Kang Ombe J" first="Jeremiah" last="Kang'Ombe">Jeremiah Kang'Ombe</name>
<affiliation wicri:level="1"><country xml:lang="fr">Malawi</country>
<wicri:regionArea>Bunda College of Agriculture, University of Malawi, PO Box 219, Lilongwe</wicri:regionArea>
<wicri:noRegion>Lilongwe</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Chapman, Lauren" sort="Chapman, Lauren" uniqKey="Chapman L" first="Lauren" last="Chapman">Lauren Chapman</name>
<affiliation wicri:level="4"><country xml:lang="fr">Canada</country>
<wicri:regionArea>Department of Biology, McGill University, 1205 Avenue Docteur Penfield, QC, H3A 1B1, Montreal</wicri:regionArea>
<placeName><settlement type="city">Montréal</settlement>
<region type="state">Québec</region>
</placeName>
<orgName type="university">Université McGill</orgName>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">African Journal of Ecology</title>
<title level="j" type="abbrev">Afr. J. Ecol.</title>
<idno type="ISSN">0141-6707</idno>
<idno type="eISSN">1365-2028</idno>
<imprint><publisher>Blackwell Publishing Ltd</publisher>
<date type="published" when="2013-09">2013-09</date>
<biblScope unit="volume">51</biblScope>
<biblScope unit="issue">3</biblScope>
<biblScope unit="page" from="385">385</biblScope>
<biblScope unit="page" to="392">392</biblScope>
</imprint>
<idno type="ISSN">0141-6707</idno>
</series>
<idno type="istex">64F12104B8E56B1E938863DC1E2E28AEE49C5074</idno>
<idno type="DOI">10.1111/aje.12048</idno>
<idno type="ArticleID">AJE12048</idno>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0141-6707</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass></textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract">Clarias liocephalus is an air‐breathing catfish inhabiting wetland and river systems in East Africa. This catfish is in high demand for sale as live bait in the Nile perch fishery of Lake Victoria and equally important in the diet of local communities in the lake basin. Wetland loss and increasing fishing pressure potentially threaten the persistence of C. liocephalus; however, little information exists on the ecology of this species to permit evaluation of current threats. This study quantified dietary characteristics of C. liocephalus from heavy and lightly fished wetlands in Western Uganda using numeric, gravimetric and volumetric indices on 492 stomach samples collected over one year. Clarias liocephalus was significantly smaller in three heavily fished sites, relative to the one in‐park site, likely a reflection of a size‐selective fishery. Across sites, C. liocephalus was a generalist feeder whose diet was dominated by aquatic dipteran larvae and plant material. The broad niche gives C. liocephalus an ecological advantage to forage effectively on a wide selection of prey. The significant presence of plant material shows that the species may utilize plant protein, an important consideration of diet requirements should the species be selected for aquaculture.</div>
</front>
</TEI>
<affiliations><list><country><li>Canada</li>
<li>Malawi</li>
<li>Ouganda</li>
</country>
<region><li>Québec</li>
</region>
<settlement><li>Montréal</li>
</settlement>
<orgName><li>Université McGill</li>
</orgName>
</list>
<tree><country name="Ouganda"><noRegion><name sortKey="Yatuha, Jane" sort="Yatuha, Jane" uniqKey="Yatuha J" first="Jane" last="Yatuha">Jane Yatuha</name>
</noRegion>
</country>
<country name="Malawi"><noRegion><name sortKey="Kang Ombe, Jeremiah" sort="Kang Ombe, Jeremiah" uniqKey="Kang Ombe J" first="Jeremiah" last="Kang'Ombe">Jeremiah Kang'Ombe</name>
</noRegion>
</country>
<country name="Canada"><region name="Québec"><name sortKey="Chapman, Lauren" sort="Chapman, Lauren" uniqKey="Chapman L" first="Lauren" last="Chapman">Lauren Chapman</name>
</region>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Belgique/explor/OpenAccessBelV2/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000698 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000698 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Belgique |area= OpenAccessBelV2 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:64F12104B8E56B1E938863DC1E2E28AEE49C5074 |texte= Diet and feeding habits of the small catfish, Clarias liocephalus in wetlands of Western Uganda }}
This area was generated with Dilib version V0.6.25. |