Meiofauna and nematode diversity in some Mediterranean subtidal areas of the Adriatic and Ionian Sea

Cristiana de Leonardis; Roberto Sandulli; Jan Vanaverbeke; Magda Vicx; Susanna de Zio

doi:10.3989/scimar.2008.72n15

Autores/as

Cristiana de Leonardis Department of Zoology, University of Bari
Roberto Sandulli Department of Zoology, University of Bari
Jan Vanaverbeke Marine Biology Section, Ghent University
Magda Vicx Marine Biology Section, Ghent University
Susanna de Zio Department of Zoology, University of Bari

DOI:

https://doi.org/10.3989/scimar.2008.72n15

Palabras clave:

meiobentos, nemátodos, estructura de comunidad, área submareal, Mediterráneo

Resumen

Los sedimentos de tres áreas submareales (15-705 m de profundidad) de la costa italiana (Manfredonia, Brindisi, Gallipoli) se investigaron para estudiar la meiofauna y composición de nemátodos. Los nemátodos se identificaron a nivel de género y sus abundancias se compararon usando análisis multivariantes. Nuestros datos mostraron un evidente gradiente de profundidad en la abundancia de la meiofauna: los lugares más someros tuvieron comunidades del meiobentos más diversas y abundantes que los más profundos. Los nemátodos fueron el taxon dominante (83-100%) en todos los lugares, seguido por los copépodos (0.5-8%). Sabatieria, Astomonema, Dorylaimopsis, Terschellingia y Daptonema fueron los géneros de nemátodos dominantes en las tres áreas. Las diversidades de géneros de nemátodos (H’) no fueron significativamente disimilares; incluso a nivel de comunidad se detectaron algunas diferencias entre areas de estudio. Las mayores diferencias se observaron cuando se compararon comunidades de Manfredonia y Gallipoli. Además, hubo diferencia entre sitios someros (<200 m) y profundos debido a las grandes diferencias en la abundancia de géneros comunes, i.e. Astomonema, Dorylaimopsis, Sabatieria, Terschellingia.

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