Abstract
Meiobenthic nematodes are well-known bioindicators in aquatic ecosystem health programs. However, the explored taxa are still limited and practically devoted to the community level. The present study provided a new method of experimental isolation of a species from a pristine nematofauna. In our method, the nematofauna faced two types of sediment, namely, the leaves of Posidonia oceanica and shells of Mytilus galloprovincialis, under controlled laboratory conditions, and several changes in species composition occurred through gradual selection of the most adaptable nematode taxa to the new environments, which were previously defaunated. We used the selected nematode taxon, Marylynnia puncticaudata (Cyatholaimidae), to examine the possible effects of organic enrichment, and the results clearly showed that the body size of the nematodes significantly increased and they became fat when after enrichment using a powder made of marine agar (1200 mg l−1) and cuticles of Crangon crangon (900 mg l−1), but their relative body growth showed no discernible changes.
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The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Acknowledgments
The authors extend their appreciation to the Researchers Supporting Project number (RSP-2020/17), King Saud University (Riyadh, Saudi Arabia).
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This work was funded by King Saud University (RSP-2020/17), Riyadh, Saudi Arabia.
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Mohamed Allouche: formal analysis, validation, and writing: original draft and writing: review and editing. Ahmed Nasri: data curation and investigation. Abdel Halim Harrath: funding acquisition and writing: review and editing. Lamjed Mansour: funding acquisition and investigation. Hamouda Beyrem: data curation and investigation. Fehmi Boufahja: conceptualization, formal analysis, funding acquisition, investigation, methodology, supervision, validation and writing: review and editing.
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Allouche, M., Nasri, A., Harrath, A.H. et al. Experimental selection of Marylynnia puncticaudata (Cyatholaimidae, Nematoda) and effects of organic enrichment. Environ Sci Pollut Res 28, 6866–6876 (2021). https://doi.org/10.1007/s11356-020-11050-1
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DOI: https://doi.org/10.1007/s11356-020-11050-1