B. Papp szerk.: Studia Botanica Hungarica 32. 2001 (Budapest, 2001)

Buczkó, Krisztina; Rajczy, Miklós: Changes of attached diatoms in a dead arm of the Danube between 1992-1999 at Ásványráró (Szigetköz section)

Table 2. Detailed list of taxa in the periphyton samples from different substrata. The number indicates in how many samples the taxon occurred in the given year (see Table 1). 1992 1995 1996 1997 1998 1999 Number of samples were collected in that year 6 6 15 2 10 Achnanthes clevei Grun. 1 1 Achnanthes delicatula (Kütz.) Grun. 1 Achnanthes hungarica (Grun.) Grun. 1 6 Achnanthes lanceolata Bréb. 1 Achnanthes minutissima Kütz. 6 6 1 5 2 10 Achnanthes plönensis Hust. 1 2 Amphora coffeaeformis (Agardh) Kütz. 3 Amphora ovális (Kütz.) Kütz. 1 1 3 Amphora pediculus (Kütz.) Grun. 5 4 2 9 Amphora thumensis (Mayer) Cleve-Euler 1 Amphora veneta Kütz. 12 18 Asterionella farmosa Hass. 11 2 3 Aulacoseira ambigua (Grun.) Simonsen 1 Aulacoseira distans (Ehr.) Kütz. 2 Aulacoseira granulata (Ehr.) Sim. 2 2 Aulacoseira granulata var. angustissima Müll. 11 1 1 Aulacoseira italica (Ehr.) Sim. 1 2 3 Aulacoseira italica var. tenuissima (Grun.) Sim. 2 Caloneis bacillum (Grun.) Cleve 1 1 Colone is silicula (Ehr.) Cleve 1 1 Centrales 6 6 5 2 9 Cocconeis neodiminuta Krammer 1 Cocconeis pediculus Ehr. 14 4 1 Cocconeis placentula Ehr. 3 6 1 3 2 1 Cymatopleura solea (Bréb.) W. Smith I Cymbella affinis Kütz. 6 6 15 17 Cymbella aspera (Ehr.) Cleve 6 1 Cymbella caespitosa (Kütz.) Brun. 1 3 Cymbella cistula (Ehr.) Kirchner 2 112 4 Cymbella cymbiformis Agardh 1 Cymbella ehrenbergii Kütz. 1 Cymbella lacustris (Agardh) Cleve 1 Cymbella lanceolata (Ehr.) Kirchner 1 Cymbella microcephala Grun. 1 2 2 4