Marinbiologische Aspekte der Wasserbewegung

Structure of an epiphytic hydroid community on Cystoseira at two sites of different wave exposure

“…The higher levels of water movement could result in a higher frequency of stem breakage and so in a higher turnover rate, or in a limitation of growth to a certain length. Water movement supplies the organisms with food, nutrients and dissolved gases, prevents accumulation of sediments, and disperses waste products and larvae (Riedl, 1969). Therefore the stems were probably more frequently colonised, had a higher species frequency, a higher number of species per stem, and larger colonies.…”

Distribution of Sessile Invertebrates in a Rocky Sublittoral Community off Rimsky‐Korsakov Islands (Sea of Japan)

“…During the last 30 years, a large amount of marine research has examined the main environmental factors that influence the composition and distribution of benthic commu­ni­ties (Sanders, 1958; Riedl, 1969, 1971; Castric‐Fey et al , 1973, 1978; Weinberg, 1976; Könnecker, 1977; Osman, 1977; Sarà et al , 1978; Pogrebov, 1978, 1980, 1982; Fresi & Cinelli, 1982; Konno, 1986; Marinopoulos, 1989, 1991; Kluijver, 1991, 1993; Hardin et al , 1994; Burkovsky et al , 1995; Kröncke et al , 1998; Ricciardi & Bourget, 1999; Guichard et al , 2001, and others). Many of these works examined the rocky sublittoral.…”

The epizoic fauna of Flustra foliacea [Bryozoa]

“…This may explain why so many filter-feeding creatures have erect habits of growth, with their tentacular feeding apparatus elevated from the substratum to which they are attached. The effect of orientated growth towards, or settlement on, the youngest parts of the Flustra fronds would be to elevate them into more quickly moving water (Riedl, 1969). However, there appears to be no empirical evidence to suggest that the few centimetres involved would make any significant difference to the amount of food that could be filtered from the water.…”