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Feeding strategy of the sacoglossan opisthobranch Oxynoe olivacea on the tropical green alga Caulerpa taxifolia
Gianguzza, P.; Andaloro, F.; Riggio, S. (2007). Feeding strategy of the sacoglossan opisthobranch Oxynoe olivacea on the tropical green alga Caulerpa taxifolia. Hydrobiologia 580(1): 255-257. dx.doi.org/10.1007/s10750-006-0447-y
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158, more
Peer reviewed article  

Also published as
  • Gianguzza, P.; Andaloro, F.; Riggio, S. (2007). Feeding strategy of the sacoglossan opisthobranch Oxynoe olivacea on the tropical green alga Caulerpa taxifolia, in: Relini, G. et al. (Ed.) Biodiversity in Enclosed Seas and Artificial Marine Habitats: Proceedings of the 39th European Marine Biology Symposium, held in Genoa, Italy, 21-24 July 2004. Developments in Hydrobiology, 193: pp. 255-257, more

Available in Authors 
Document type: Conference paper

Keywords
    Feeding behaviour; Introduced species; Pest control; Selective feeding; Caulerpa taxifolia (M.Vahl) C.Agardh, 1817 [WoRMS]; Oxynoe olivacea Rafinesque, 1814 [WoRMS]; MED, Mediterranean [Marine Regions]; Marine

Authors  Top 
  • Gianguzza, P.
  • Andaloro, F., more
  • Riggio, S.

Abstract
    The feeding behaviour of the shelled sacoglossan Oxynoe olivacea was investigated to better understand the role and importance of this species in influencing encroachments of the alien alga Caulerpa taxifolia in the Mediterranean sea. We tested whether this slug preferred, as preliminary field observations suggested, an aggregative feeding behaviour and which part of the algal thallus, phylloid vs rhizoid, it preferred. Results showed that O. olivacea fed in groups and actively selected phylloid. This outcome poses important questions regarding the possibility that this species, fragmenting the alga thallus, could enhance dispersion and regeneration of C. taxifolia.

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