Population Dynamics and Secondary Production of Owenia fusiformis Delle Chiaje (Polychaeta Oweniidae) along the Coasts of Emilia-Romagna (Northern Adriatic, Mediterranean Sea)

  • E. Daelli
  • A. Occhipinti Ambrogi


The population structure and dynamics of O. fusiformis have been studied for one annual cycle along the coasts of Emilia-Romagna (Italy). Five seasonal samplings were carried out along two transects differently influenced by the Po river outflow, at the depth of 3,8 and 12 m, using a 0.06 m2 Van Veen grab. Secondary production has been evaluated according to the increment weight method. Densities and biomass values were higher at 8 m depth in both the considered localities, probably due to lower mud content of the sediment. The pattern of size-frequency histograms suggests an estimated life-span of at least two years. The growth rate of the youngest individuals was higher at 3 m depth, due to the higher hydrodynamic levels of the shallower waters. Total annual production ranged from a minimum of 0.12 g m−2 y−1 at the depth of 12 m off Cesenatico, to a maximum of 14.78 g m−2 y−1 at the depth of 3 m off Porto Garibaldi.


Fine Sand Total Abundance Abdominal Segment Secondary Production Sediment Texture 
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  1. Albertelli G, Bedulli D, Cattaneo-Vietti R et al (1998) Trophic features of benthic communities in the Northern Adriatic Sea. Biol Mar Medit 5(1): 136–143Google Scholar
  2. Ambrogi R (1997) Tra Pa e Adriatico: il sistema ecologico del Delta Padano. In: Prospettive di ricerca in ecologia delle acque. Quaderni IRSA 103, pp 188–208Google Scholar
  3. Ambrogi R, Bedulli D, Zurlini G (1990) Spatial and temporal patterns in structure of macrobenthic assemblages: a three-year study in the Northern Adriatic Sea in front of the Po River Delta. PSZNI Mar Ecol 11: 25–41CrossRefGoogle Scholar
  4. Ambrogi R, Fontana P, Gambi MC (1995) Population dynamics and estimate of secondary production of Owenia fusiformis Delle Chiaje (Polychaeta, Oweniidae) in the coastal area of the Po river Delta (Italy). In: Eleftheriou A et al (eds) Biology and ecology of shallow coastal waters. Olsen & Olsen, Fredensborg, pp 207–214Google Scholar
  5. Buchanan JB (1984) Sediment analysis. In: Holme NA, McIntyre AD (eds) Methods for the study of marine benthos. 2nd ed. Blackwell, Oxford, pp 41–65Google Scholar
  6. Crisp DJ (1984) Energy flow measurements. In: Holme NA and McIntyre AD (eds) Methods for the study of marine benthos, 2nd ed. Blackwell Sci Publ Oxford, pp 284–372Google Scholar
  7. Dauvin JC, Gillet P (1991) Spatio-temporal variability in population structure of Owenia fusiformis Delle Chiaje (Anellida: Polychaeta) from the Bay of Seine (Eastern English Channel). J Exp Mar Biol Ecol 152: 105–122CrossRefGoogle Scholar
  8. Dauvin JC, Thiébaut E (1994) Is Owenia fusiformis Delle Chiaje a cosmopolitan species? In: Dauvin JC Laubier L Reish DJ (eds). Actes de la 4ème Conférence Internationale des Polychètes. Mém Mus Natn Hist Nat 162: 383–404Google Scholar
  9. Desroy N, Olivier F, Retière C (1997) Effects of individual behaviours, inter-individual interactions with adult Pectinaria koreni and Owenia fusiformis (Annelida, Polychaeta), and hydrodynamism on Pectinaria koreni recruitment. Bull Mar Sci 60:547–558Google Scholar
  10. Diaz RJ, Rosenberg R (1995) Marine benthic hypoxia: a review of its ecological effects and the behavioural responses of benthic macrofauna. Oceanogr Mar Biol 33: 245–303Google Scholar
  11. Fauchald K, Jumars PA (1979) The diet of the worms: a study of Polychaete feeding guilds. Oceanogr Mar Biol Annu Rev 17: 193–284Google Scholar
  12. Gambi MC (1989) Osservazioni su morfologia funzionale e comportamento trofico di Owenia fusiformis delle Chiaje (Polychaeta, Oweniidae) in rapporto ai fattori ambientali. Oebalia 15: 145–155Google Scholar
  13. Gentil F, Dauvin JC (1989) Etude allométrique de la Polychète Owenia fusiformis Delle Chiaje. J Rech Océanogr 1: 58–60Google Scholar
  14. Ménard F, Gentil F, Dauvin JC (1989) Population dynamics and secondary production of Owenia fusiformis Delle Chiaje (Polychaeta) from the Bay of Seine (eastern English Channel). J Exp mar Biol Ecol 133: 151–167CrossRefGoogle Scholar
  15. Moodley L, Heip CHR, Middelburg JJ (1998) Benthic activit in sediments of the Northwest Adriatic Sea: sediments oxygen consumption, macro and meiofauna dynamics. J Sea Res 40: 263–280CrossRefGoogle Scholar
  16. Montanan G, Ghetti A, Ferrari CR (1998) Eutrofizzazione delle acque costiere dell’Emilia Romagna. Rapporto annuale 1997, Regione Emilia Romagna, Assessorato Territonio, Programmazione e Ambiente, ARPA, 220 ppGoogle Scholar
  17. Nilsen R, Holthe T (1985) Arctic and Scandinavian Oweniidae (Polychaeta) with a description of Myriochele fragilis and comments on the phylogeny of the family. Sarsia 70: 17–32Google Scholar
  18. Olivier F, Desroy N, Retière C (1996) Habitat selection and adultrecruit interactions in Pectinaria koreni (Malmgren) (Annelida, Polychaeta) post-larval populations — results of flume experiments. J Sea Res 36: 217–226CrossRefGoogle Scholar
  19. Rinaldi A, Montanari G, Ghetti A, Ferrari CR, Mazziotti C (1997) Eutrofizzazione delle acque costiere dell’Emilia Romagna. Rapporto annuale 1996, Regione Emilia Romagna, Assessorato Territorio, Programmazione e Ambiente, ARPA, 234 ppGoogle Scholar
  20. Thiébaut E, Cabioch L, Dauvin JC, Retière C, Gentil F (1997) Spatiotemporal persistence of the Abra alba — Pectinaria koreni muddy fine sand community of the eastern Bay of Seine. J Mar Biol Ass UK 77: 1165–1185CrossRefGoogle Scholar
  21. Vollenweider RA, Rinaldi A, Montanan G (1992) Eutrophication structure and dynamics of a marine coastal system. Results of a ten-year monitoring along the Emilia-Romagna coast (Northwest Adriatic Sea). In: Vollenweider R A, Marchetti R, Viviani R (eds) Marine Coastal Eutrophication. Elsevier, Amsterdam, pp 63–106Google Scholar
  22. Woodin SA, Merz RA (1987) Holding on by their hooks: anchors for worms. Evolution 41: 427–432CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Italia 2001

Authors and Affiliations

  • E. Daelli
    • 1
  • A. Occhipinti Ambrogi
    • 1
  1. 1.Dipartimento di Genetica e Microbiologia, Sezione EcologiaUniversità di PaviaPaviaItaly

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