Tables to chapter 11.

Table 1 Abundance (ex.m-2 ) of midges (Chironomidae) of the Danube

Locality Dunajské kriviny Istragov
Taxon 1994 1995 1996 1997 1994 1995 1996 1997
Ablabesmyia monilis (Linnaeus, 1758)

2

Tanypus vilipennis (Kieffer, 1918) 9
Procladius sp. 7
Procladius (Holotanypus Roback, (1982) 2 1
Potthastia gaedii (Meigen, 1838) 1
Potthastia longimana (Kieffer, 1922) 1
Prodiamesa olivacea (Meigen, 1818) 5 13
Cricotopus sp. 1950 33 50 5
Cricotopus annulator (Goetghebuer, 1927) 3
Cricotopus bicinctus (Meigen, 1818) 184 84 5 5 13
Cricotopus tremulus (Linnaeus, 1758) 3
Orthocladius (E.) rivulorum (Kieffer, 1909) 3
Chaetocladius sp. 63
Paracladius conversus (Walker, 1856) 7 1 5 1 3
Cryptochironomus defectus (Kieffer, 1913) 82 3 10 25 3 26
Dicrotendipes nervosus (Staeger, 1839)  208
Einfeldia insolita (Kieffer, 1922) 19
Einfeldia skup. pagana (Meigen, 1838) 1 92 38
Harnischia sk. conjungens (Kieffer, 1918) 9
Harnischia fuscimana (Kieffer, 1921) 13
Gliptotendipes glaucus (Meigen, 1818) 42 24
Gliptotendipes gripekoveni (Kieffer, 1913) 54
Gliptotendipes pallens (Meigen, 1804) 3 24
Chironomus sp. 25 1 1 1
Chironomus skup. fluviatilis (Lenz, 1924) 10 13 2513 20 10
Chironomus skup. plumosus (Linne, 1758) 8
Chironomus skup. reductus (Lenz, 1924) 9 17 125 6
Chironomus skup. semireductus (Lenz, 1924) 21
Chironomus skup. thumi (Kieffer, 1911) 1
Microtendipes chloris (Meigen, 1818) 452 16 29 408
Polypedilum convictum (Walker, 1856) 2 28 1 1 1
Polypedilum exsectum (Kieffer, 1916) 50
Polypedilum nubeculosum (Meigen, 1804) 6 5
Cladotanytarsus mancus (Walker, 1856) 12 1 33 13
Tanytarsus skup. macrosandalum (Kieffer,1925) 5 47 100
Tanytarsus mendax (Kieffer, 1925) 1 13
Tanytarsus skup.lobatifrons (Kieffer, 1925) 7
Tanytarsus medius (Reiss et Fittkau, 1971) 1
Paratanytarsus skup. lauterborni (Kieffer, 1909) 5
Rheotanytarsus exiguus (Johannsen, 1937) 3
 

Table 2. Permanent zoobenthos in Bodícka brána (Species with the asterisk * were only found in qualitative samples. % - intensity of occupancy on sediment.

                                     Date

Species

1991 1992

1993

1994 1995 1996 1997
ex. m-2 ex. m-2 ex. m-2 ex. m-2 ex. m-2 ex. m-2 ex. m-2
Porifera
Eunapius fragilis * 10% * 15% 5% 1%
Turbelaria
Dugessia polychlora 18 49 6 50 348 20 71

Dugessia tigrina

2740 3011 15 330
Hirudinea
Dina Punctata 61 23 22 12 12 35
Erpobdella octoculata 122 165 12 30 61 7
Erpobdella nigricollis 3
Helobdella stagnalis 2 14
Glossiphonia complanata 17 8
Gastropoda
Anisus spirobris 15
Anisus vortex 4 4
Bithynia leachi 4 4
Bithynia tentaculata 43 145 18 50 69 129 141
Lithoglyphus naticoides 6 11 4
Valvata cristata 3
Valvata piscinalis * * * * 4 13 9
Viviparus acerosus 49 83 11 4
Aplexa hypnorum *
Physa acuta 5 54 102 5 4 14
Lymnaea auricularia 9 56 68 * 4 36 49
Lymnaea peregra 83 * 117 40 13 56 6
Lymnaea stagnalis 1 10 42 * 3 5
Anisus spirobris *
Hippeutis complanatus 12
Gyralus albus 5 * 105 8 64 19 13
Gyralus laevis 2 6 *
Planorbis planorbis * 8
Acroluxus lacustris 13 *
Bivalvia
Dreissena polymorpha 95% 80% 6 70 1751 2965 1763
Sphaerium corneum 3
Unio pictorum * *
Bryozoa
Cristalleta mucedo * 312 235
Fredericella sultana 5% 10%
Hyalinella punctata 5% 5%
Paludicella articulata * * *
Plumatella fungosa * * 10%
Plumatella emarginata * 1%
Plumatella repens 5% 10% 10%
Crustacea
Asellus aquaticus * 84
Dikerogammarus Haemobaphes 32 14 6 4 11 55
Dikerogammarus villosus 6 16 72
Chaetogammarus ischnus 5
Limnomysis benedeni * *
Total quantity 3225 3719 504 270 2971 3641 2198
Number of species 29 27 18 16 21 17 23

Table 3   Permanent zoobenthos in the Kráľovská lúka. (Species with the asterisk * were only found in qualitative samples. % - intensity of occupancy on sediment.

                                       Date 1991 1992 1993 1994 1995 1996 1997
Species ex. h-1 ex. h-1 ex. h-1 ex. h-1 ex. h-1 ex. h-1

ex. h-1

Porifera
Eunapius fragilis 15%
Turbellaria
Dendrocoelum lacteum 12 18 48
Dugesia tigrina * 31 12
Dugesia lugubris 71 17
Hirudinea
Glossiphonia complanata 3 6
Glossiphonia concolor 8
Glossiphonia heteroclita 3 3
Helobdella stagnalis 3 2 10 16 18 24 99
Hemiclepsis marginata 4 12 56
Erpobdella octoculata 12 16 4 4 48 128
Erpobdella testacea 48
Haemopis sanguisuga 4 2
Theromyzon tessulatum 12
Gastropoda
Acroloxux lacustris * *
Anisus vortex 4 3
Armiger crista 12 6
Bithynia tentaculata 15 3 8 48 112
Gyraulus albus 21 72 108 73 1398
Hippeutis complanatus 8 3 6 6
Lymnaea auricularia 9 1 2 48 4 47 1645
Lymnaea peregra 1 12
Lymnaea stagnalis 16 * 1 28 6 12 165
Lymnaea turricula 77
Physella acuta 3 4 2 119
Planorbarius corneus 10 8 18
Planorbis planorbis 3 3 8 12 9 5
Valvata cristata * 6
Viviparus contectus 2 3
Bivalvia
Anodonta cygnaea *
Bryozoa
Plumatella fungosa * * 25%
Plumatella repens * 25% 5%
Crustacea
Asellus aquaticus 26 132 442 * 139
Lymnomysis benedeni 200 *
Total Number 125 158 457 390 149 427 4157
Number of species 17 11 8 11 13 18 25

Table 4   Comparison of dragonflies species found in the Danube arms of Danubian lowland and in the Danube arms of Austria close to Slovak frontier

                                     Found in the years Danubian lowland Austria
Taxon

 1990-911

  1993-952

from 19953

     19924

Calopteryx splendens (Harris, 1782) + + + +
Sympecma fusca (Vander Linden, 1820) + + + -
Lestes barbatus (Fabricius, 1798) + - - +
Lestes sponsa (Hansemann, 1823) + + + +
Lestes viridis (Vander Linden, 1825) + + + +
Platycnemis pennipes (Pallas, 1771) + + + +
Pyrrhosoma nymphula (Sulzer, 1776) - + - -
Ischnura elegans (Vander Linden, 1823 ) + + + +
Ischnura pumilio (Charpentier, 1825) + + - +
Enallagma cyathigerum (Charpentier, 1840) + + + +
Coenoagrion puella (Linnaeus, 1758) + + + +
Coenoagrion pulchellum (Vander Linden, 1825) - + + +
Erythromma najas (Hansemann, 1823) - + + +
Erythromma viridulum (Charpentier, 1840) - + + +
Aeschna affinis (Vander Linden, 1820) - + + +
Aeschna grandis (Linnaeus, 1758)  + + + +
Aeschna isosceles (Müller, 1767) - + - +
Aeschna mixta (Latreille, 1805) - - + +
Aeschna viridis (Eversmann, 1836) - - - +
Anax imperator (Leach, 1815) + + + -
Brachytron pratense (Müller, 1764) - - - +
Hemianax ephippiger (Burmeister, 1839) - - - +
Cordulia aenea (Linnaeus, 1758) - + + +
Somatochlora metallica (Vander Linden, 1825) + - +  
Ephiteca bimaculata (Charpentier, 1825) - - + +
Libellula quadrimaculata (Linnaeus, 1758) - + - +
Libellula fulva (Müller, 1764) - - - +
Platetrum depressum (Linnaeus, 1758) - + + +
Orhetrum albistylum (Selys, 1848) - + - +
Orhetrum brunneum (Fonscolombe, 1837) - + - -
Orhetrum cancellatum (Linnaeus, 1758) - + - +
Crocothemis erythrea (Brullé, 1832) - - + -
Sympetrum flaveolum (Linnaeus, 1758) - - + +
Sympetrum meridionale (Selys, 1841) - - + -
Sympetrum pedemontanum (Allioni, 1766) + - + +
Sympetrum sanquineum (Müller, 1764) + - + +
Sympetrum striolatum (Charpentier, 1825) + + + -
Sympetrum vulgatum (Linnaeus, 1758) + + + +
Number of species 17 24 27 31
 Explanations: 1 Majzlan (1992), 2 Bulánková (1995), David (1994), 3 Bulánková (in print), 4 Moog (1995)