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Feeding of nauplii, copepodites and adults of Calanipeda aquaedulcis (Calanoida) in Mediterranean salt marshes

2008; Inter-Research; Volume: 355; Linguagem: Inglês

10.3354/meps07225

1616-1599

Sandra Brucet, Jordi Compte, Dani Boix, Rocío López‐Flores, Xavier D. Quintana,

Mercury impact and mitigation studies

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 355:183-191 (2008) - DOI: https://doi.org/10.3354/meps07225 Feeding of nauplii, copepodites and adults of Calanipeda aquaedulcis (Calanoida) in Mediterranean salt marshes Sandra Brucet1,2,*, Jordi Compte2, Dani Boix2, Rocío López-Flores2, Xavier D. Quintana2 1National Environmental Research Institute, Vejlsøvej 25, Postboks 314, 8600 Silkeborg, Denmark 2Institute of Aquatic Ecology and Department of Environmental Sciences, University of Girona, Campus de Montilivi, Facultat de Ciències, 17071 Girona, Spain *-Email: sandra.brucet@gmail.comPresent address: Spain ABSTRACT: Feeding of the different developmental stages of Calanipeda aquaedulcis on natural particles (bacterio-, phyto- and microzooplankton) was measured in a Mediterranean salt marsh (Empordà wetlands, NE Iberian Peninsula). Bottle incubations were performed in the field both in autumn and spring. The results showed differences in the diet of the different developmental stages due to both prey type and size. In general, the size of the ingested prey increased with increasing size of the C. aquaedulcis stage. While C. aquaedulcis adults had high ingestion rates and selection coefficients for large prey (micro- and nanoplankton), nauplii preferentially consumed smaller prey items (picoplankton). Copepodites showed the widest prey size range, including pico-, nano- and microplankton. Nevertheless, the lower size limit for particle capture was similar for all stages, i.e. between 1.7 and 2.1 µm. Omnivory was observed in all stages of C. aquaedulcis. Heterotrophic prey (picoplankton, dinoflagellates and ciliates) were the most ingested items. The ability to partition the available food among the different developmental stages could represent an advantage in times of food scarcity because it may reduce intraspecific competition. This may explain how C. aquaedulcis is able to predominate in the zooplankton community for several weeks during spring and summer even in situations of low food availability. KEY WORDS: Feeding · Developmental stages · Ingestion · Omnivory · Selectivity · Zooplankton Full text in pdf format PreviousNextCite this article as: Brucet S, Compte J, Boix D, López-Flores R, Quintana XD (2008) Feeding of nauplii, copepodites and adults of Calanipeda aquaedulcis (Calanoida) in Mediterranean salt marshes. Mar Ecol Prog Ser 355:183-191. https://doi.org/10.3354/meps07225 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 355. Online publication date: February 26, 2008 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2008 Inter-Research.