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oai:recercat.cat:2445/324312025-12-05T09:43:21Zcom_2072_1057col_2072_478778col_2072_478917

A general approach to the in situ energy butget of Eudendrium racemosum (Cnidaria, Hydrozoa) in the Western Mediterranean Barange Corachan, Manuel Zabala i Limousin, Mikel Riera, Tecla Gili, Josep Maria, 1953- Hidrozous Cnidaris Mediterrània, Mar Hydrozoa Cnidaria Mediterranean Sea An in situ energy budget of the hydropolyp Eudendrium racemosum (Cavolini, 1785) is presented. Ingestion and respiration rates and ammonium excretion were studied over two 24 h cycles, with two-hour sample intervals. The species ingested as much as 25.9% of its own biomass per day (minimum rate). Respiration was 1.62 ml O2 g-1 d w h-1 while excretion was 13.6 mM NH4 g-1dw h-1. We estimated that the species increased its biomass at a rate of 9.6% per day (Growth + Reproduction). This value is higher than those previously reported for other cnidarians. We can assume that the capacity of E. racemosum to survive - albeit for a limited period of the year - in the highly-competitive shallow-water communities is based on its high growth rate. 2012-10-29T13:13:15Z 2012-10-29T13:13:15Z 1989 2012-10-29T13:13:15Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0214-8358 https://hdl.handle.net/2445/32431 121046 eng Reproducció del document publicat a: http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/2522/ Scientia Marina, 1989, vol. 53, num. 2-3, p. 423-427 cc-by-nc (c) Consejo Superior de Investigaciones Científicas (CSIC), 1989 http://creativecommons.org/licenses/by-nc/3.0/es info:eu-repo/semantics/openAccess 5 p. application/pdf Consejo Superior de Investigaciones Científicas (CSIC) Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)