Advertisement

Distribution and Ecology of Mesozooplankton in the Northern and Central Adriatic Sea

  • O. Sidoti
  • G. Zagami
  • A. Granata
  • G. Brancato
  • L. Guglielmo
  • M. Campolmi

Abstract

Within the framework of the Prisma 2 Project, four oceanographic cruises were carried out in the central and northern Adriatic Sea from June 1996 to March 1997. Samples were collected both by BIONESS electronic multinet (204 samples from 54 sites) and by WP2 (101 samples from 19 sites) along inshore-offshore sections. The spatial-temporal distribution of the zooplankton community was analysed in relation to the variability of physico-chemical and biological parameters. The seasonal succession of the zooplankton community was characterized by an inversion of the dominance ratio between copepods and cladocerans. In early June, copepods and cladocerans represent on average 52 and 20% of the zooplankton community, respectively, while in late summer they represent 17 and 66%. During late spring-summer, the cladoceran population was clearly dominated by Penilia avirotris, which in some coastal sites constituted more than 90% of the zooplankton. In the coastal zone, the copepod population was characterized by low species diversity and greater dominance of A. clausi, P. parvus and T. stylifera (73% of the population). In the offshore zone of the neritic system, there was instead a more homogeneous copepod species composition. Because of their spatial distribution patterns, P. elongatus and T. longicornis, typical of estuarine environments,can be considered as hydrological indicator species of different water masses of the Adriatic neritic system. In winter, the zooplankton community was characterized by strong dominance of copepods (31 species identified), on average constituting 75% of the zooplankton, followed by invertebrate larvae, appendicularians, cladocerans, siphonophores and chaetognaths. From our analysis of the spatial distribution of the zooplankton community, we have formulated a preliminary trophic model concerning the association of ecologically similar species in the water masses of the Adriatic neritic system.

Keywords

Zooplankton Community Copepod Species Frontal System Dominance Ratio Offshore Site 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Artegiani A, Gacic M, Michelato A, Kovacevic V, Russo A, Paschini E, Scarazzato P, Smircic A (1993) The Adriatic Sea hydrography and circulation in spring and autumn (1985–1987). Deep-Sea Res II 40(6): 1143–1180CrossRefGoogle Scholar
  2. Bakus GJ (1990) Quantitative ecology and marine biology. A.A. Baltema, RotterdamGoogle Scholar
  3. Benovic A, Fonda Umani S, Malej A, Specchi M (1984) Net zooplankton biomass of the Adriatic Sea. Mar Biol 49: 265–275Google Scholar
  4. Buljan M, Zore-Armanda M (1976) Oceanographic properties of the Adriatic Sea. Oceanogr Mar Biol Am Rev 14: 11–98Google Scholar
  5. Car L (1890) Ein Beitrag zur Kenntnis der Copepoden von Triest. Glas Drus 5:313–332Google Scholar
  6. Claus C (1881) Neue Beitrage zur Kenntnis der Copepoden unter besonderer Berucksiditigung der Triester Fauna. Arb Zool Inst Wien 3:313–332Google Scholar
  7. Fonda Umani S (1996) Pelagic production and biomass in the Adriatic Sea. Sci Mar 60 Suppl 2:65–77Google Scholar
  8. Fonda Umani S, Franco P, Ghirardelli E, Malej A (1992) Outline of oceanography and the plankton of the Adriatic Sea. In: Olsen and Olsen (eds) Marine eutrophication and population dynamics, Proc 25th EMBS, pp 347–365Google Scholar
  9. Fonda Umani S, Specchi M, Cataletto B, De Olazabal A (1994) Distribuzione stagionale del mesozooplancton nell’Adriatico settentrionale e centrale. Boll Soc Adriat Sci LXXV, 1: 145–176Google Scholar
  10. Franco P (1973) L’influenza del Po sui caratteri oceanografici e sulla distribuzione della biomassa planctonica nell’Adriatico settemtrionale. Ann Univ Ferrara 1:95–117Google Scholar
  11. Franco P (1983) L’Adriatico Settentrionale: caratteri oceanografici e problemi. In: Atti V Congr AIOL, Stresa, pp 1–27Google Scholar
  12. Franco P, Jeftic L, Malanotte-Rizzoli P, Michelato A, Orlic M (1982) Descriptive model of the Northern Adriatic. Oceanol Acta 5:379–389Google Scholar
  13. Ghirardelli E, Fonda Umani S, Specchi M (1989) Lo zooplancton dell’Adriatico. In: Il Mare Adriatico: problemi e prospettive. SOGESTA Urbino 24 maggio 1989, pp 47–74Google Scholar
  14. Graeffe E (1900) Ubersicht der Fauna des Golfes von Triest. Arb Zool Inst Wien 13:33–80Google Scholar
  15. Guglielmo L, Granata A, Greco S (1998) Distribution and abundance of postlarval and juvenile Pleuragramma antarcticum (Pisces, Nototheniidae) off Terra Nova Bay (Ross Sea, Antarctica). Polar Biol 19:37–51.CrossRefGoogle Scholar
  16. Hure J, Ianora A, Scotto di Carlo B (1980) Spatial and temporal distribution of Copepod communities in the Adriatic Sea. J Plankton Res 2 (4): 295–316CrossRefGoogle Scholar
  17. Lovgrove T (1966) The determination of the dry weight of plankton and the effect of various factors on the value obtained. In: Barnes H (ed) Some contemporary studies in marine science. Allen and Unwin, London, pp 429–467Google Scholar
  18. Marchetti R, Pacchetti G, Provini A (1985) Tendenze evolutive della qualità delle acque del Po. Nova Thalassia 7 Suppl 2:311–340Google Scholar
  19. Regner D (1985) Seasonal and multiannual dynamics of copepods in the middle Adriatic, Acta Adriat 26:11–99Google Scholar
  20. Russo A, Totti C, Zagami G, Barletta D, Brancato G, Campolmi M, Galassi M, Pariante R, Solazzi A (2000) Caratterizzazione fisica e biologica delle masse d’acqua Nord-adriatiche nell’area Anconetana. In: XIII Congr AIOL, Ancona, 28/30 Settembre 1998 (in press)Google Scholar
  21. Scotto di Carlo B, Tomas CR, Ianora A, Marino D, et al (1985) Uno studio integrate dell’ecosistema pelagico costiero del Golfo di Napoli. Nova Thalassia 7:99–128Google Scholar
  22. Specchi M, Fonda Umani S (1987) Influenza del Po sul sistema pelagico dell’ Adriatico. Bull Ecol 18 (2): 135–144Google Scholar
  23. Steuer A (1902a) Beobachtunger uber das Plankton des Trieser Golfes in Jabre 1901. Zool Anz 25:369–371Google Scholar
  24. Steuer A (1902b) Quantitative Planktonstudien im Golfes von Triest. Zool Anz 25:372–375Google Scholar
  25. Steuer A (1910a) Plankton Copepoden aus dem Hafen von Brindisi. Sitzb K Akad Wiss Wien Math Naturwiss KL Abt 119:591–598Google Scholar
  26. Steuer A (1910b) Adriatische Plankstoncopepoden. Ibid, 1005–1039Google Scholar
  27. Zoppini A, Pettine M, Totti C, Puddu A, Artegiani A, Pagnotta R (1995) Nutrients, standing crop and primary production in western costal waters of the Adriatic Sea. Estuarine Coast Shelf Sci 41:493–513CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Italia 2001

Authors and Affiliations

  • O. Sidoti
    • 1
  • G. Zagami
    • 1
  • A. Granata
    • 1
  • G. Brancato
    • 1
  • L. Guglielmo
    • 1
  • M. Campolmi
    • 1
  1. 1.Dipartimento di Biologia Animale ed Ecologia MarinaUniversità di MessinaMessinaItaly

Personalised recommendations