Nom du corpus

Corpus Systématique Animale

Titre du document

Associations and distribution of benthic nematodes in the Ethiopian Rift Valley lakes

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Nematoda
  • benthos
  • lakes
  • Rift Valley
  • Ethiopia
Nom du fichier dans la ressource
Vers_v2b_00019
Auteur(s)
  • Claudiu Tudorancea 1
  • Aldo Zullini 2
Affiliation(s)
  • 1) Department of Biology, University of Waterloo, N2L 3G1, Waterloo, Ont., Canada
  • 2) Dipartimento di Biologia, Universita degli Studi, Milano, Italy
Résumé

The nematode associations in six Ethiopian rift lakes, one man-made lake, and three crater lakes were studied and related to water conductivity, lake depth and sediment particle size. The lakes investigated lie at moderate altitudes (1200–2000 m), are alkaline and vary in their conductivities. The rift lakes Abijata and Shala and the crater lakes Aranguadi, Kilotes and Chitu are soda lakes (K25 > 6000 µS cm?1), while the remaining five lakes and the man-made Lake Koka are within the freshwater range of conductivity (K25 < 6000 µS cm?1). A total of 16 species were identified including six new species. The nematode associations varied between lakes and were restricted to very few species in each lake. Most nematodes were restricted to non-saline lakes. The most dilute L. Zwai had a higher number of nematode species (12) and abundance than other lakes. The saline lakes Shala and Kilotes had nematode assemblages made up of only a single species (Mesodorylaimus macrospiculum). No nematodes were found in the hypersaline crater L. Chitu. Tobrilus africanus appeared more euryhaline than other nematodes occurring at conductivities as high as 15 000 µ S cm?1 (L. Abijata). Five of the most common species (Dorylaimus sp., Monhystera stagnalis, Aphanolaimus tudoranceai, Tobrilus africanus and Actinolaimus perplexus) were associated with medium grained sand. A monthly variation in density of nematodes in L. Zwai is also shown.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - vecteurs d'importance medicale, nuisances, depredateurs des denrees et materiaux: surveillance des populations et lutte
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
2793A291F9576E5683E6B8FF7373D3A72733AAB5
Revue

Hydrobiologia

Année de publication
1989
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.712
Sous-corpus
  • Vers
Type de publication
Journal
ark:/67375/1BB-K03035BK-T
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