Files
Document type
ArticleVersion
Published versionPublication date
Publication license
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/32425
Consumption of macrophytes by invertebrates in Tancada lagoon (NE Spain)
Journal Title
Director/Tutor
Journal ISSN
Volume Title
Related resource
Abstract
Gammarus aequicauda and Sphaeroma hookeri are the most abundant macroinvertebrates on Ruppia cirrhosa (1275 and 1290 individuals.m-2) and Potamogeton pectinatus (140 and 680 individuals. m-2) in Tancada lagoon, a Mediterranean coastal lagoon in the Ebro Delta (NE Spain). Consumption and assimilation efficiencies were calculated from bell jar experiments. Gammarus grazing effects are higher than Sphaeroma on both Ruppia cirrhosa and Potamogeton pectinatus. Green Ruppia leaves lost 0.3 mg per mg Gammarus per day, while Potamogeton leaves lost 0.2 mg per mg Gammarus per day. Decomposing Ruppia leaves lost 0.35-0.54 mg per mg Gammarus per day. Losses of weight by both Ruppia and Potamogeton due to Sphaeroma feeding were less than half those by Gammarus. Assimilation efficiencies are higher for Gammarus (44-78% feeding on Ruppia 2% feeding on Potamogeton) than for Sphaeroma (26-48%) feeding on Ruppia). These assimilation efficiencies were higher than those reported by other authors working at higher latitudes perhaps because of the higher temperature under which the experiments were carried out.
Subject (English)
Citation
Citation
MENÉNDEZ LÓPEZ, Margarita and COMÍN, F. A. (Francisco A.). Consumption of macrophytes by invertebrates in Tancada lagoon (NE Spain). Scientia Marina. 1990. Vol. 54, num. 2, pags. 139-144. ISSN 0214-8358. [consulted: 11 of June of 2026]. Available at: https://hdl.handle.net/2445/32425