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Migratory rhythms of drifting juvenile molluscs in tidal waters of the Wadden Sea
After initial spatfall, some species of bivalves and juvenile mud snails may re-enter the water column and thus undergo secondary dispersal. Uslng continuous plankton net records of the number ofExpand
Drifting meio- and macrobenthic invertebrates on tidal flats in Königshafen: A review
  • W. Armonies
  • Environmental Science
  • Helgoländer Meeresuntersuchungen
  • 1 June 1994
Many benthic species have been recorded to occur in the water column above the tidal flats in Königshafen. They were either passively suspended from the sediment or performed active migrations.Expand
Changes in distribution patterns of 0-group bivalves in the Wadden Sea: Byssus-drifting releases juveniles from the constraints of hydrography
Abstract The large-scale (km) distributional patterns of juvenile bivalves are established by larval settlement and subsequently changed due to actively initiated postlarval migrationsExpand
Faunal diversity across a sandy shore
At a sandy beach site on the island of Sylt in the North Sea, the interstitial micro- and meiofauna has been studied by several investigators since the 1960s, and a total of 652 species livingExpand
Passive settlement of Macoma balthica spat on tidal flats of the Wadden Sea and subsequent migration of juveniles
Abstract Spatfall of the tellinid bivalve Macoma balthica may occur in fine-grained sediments at different tidal elevations in the Wadden Sea. but it is not clear which mechanism (active habitatExpand
Active emergence of meiofauna from intertidal sediment
Laboratory experiments were conducted to test for active meiofaunal emergence from intertidal sediment in the absence of currents. Copepoda, Ostracoda, Plathelrninthes and Polychaeta actively leftExpand
Effects of the severe winter 1995/96 on the benthic macrofauna of the Wadden Sea and the coastal North Sea near the island of Sylt
Abstract. The development of benthic macrofauna in the Wadden Sea and in the coastal North Sea after the severe winter of 1995/96 is compared with the preceding years with mild to moderate winters.Expand
On the population development of the introduced razor clamEnsis americanus near the island of Sylt (North Sea)
The American razor clamEnsis americanus (=E. directus) was introduced into the eastern North Sea in the late 1970s. By larval and poslarval drifting the species rapidly extended its distribution, nowExpand
What an introduced species can tell us about the spatial extension of benthic populations
In the late 1970s the American jackknife Ensis americanus (syn. E. directus) was introduced into the North Sea. The history of its dispersal along the coast is used to derive an estimate of theExpand
Turnover of postlarval bivalves in sediments of tidal flats in Königshafen (German Wadden sea)
  • W. Armonies
  • Biology
  • Helgoländer Meeresuntersuchungen
  • 1 June 1994
After larval settlement, juvenile bivalves may rapidly re-enter the water column and attain secondary dispersal by byssus-drifting. In order to estimate the quantitative importance ofExpand