Mosquito-net catches | Fmersed from larvae 
and pupae collected 
0 = f 
Date Place S "Joo Number | Number | Number | N Submerged vegetation etc 
Number f umber D 
of lud- of of lud- 0 
of nets | lowi 99 | rossii 92 | lowi 92 | rossii 99 
ee ee ee, 
() il HON apel à à sars Se 5 0 2 = Chaetomorpha rather heavily coated, ; | 
Jaagp 0 = ta finale Y mostly old, sometimes young floating algal masses; few 
fl 38.7 0 2 = | fresh Enteromorpha; Chaetomorpha rath N 
DE » | 8 a= Le aa es ee pha rather fresh, more or less coated; few floating algal mats; 
48.1 4 0 77 = rather young and fresh to older, very pale, rather heavi 
D » — 2 a > » ni eavily coated Chaetomorpha, someti ith 
| Gloeocapsa; floating algal masses extending over whole pond-area; kepala timah ee 
8 „ „| Heemraad Oost . . | 38.1 8 | 3 91 = Les — 
D sp ” 16.6 5 0 0 = oss u 
9 ” » » 33.6 4 | 1 49 = en —— 
DDW ” 16.9 5 0 44 En — sd 
| | 
10) » B 32.7 4 | 3 35 — er thin and thick Enteromorpha. 
» 9  » » 18.7 4 2 16 zE ek Najas falciculata. 
U og 5 34.85 5 | 0 137 En pee thin and thick Enteromorpha, 
» » » 5 19,9 5 7 75 = bes Najas falciculata. 
Woy 5 pl 34.4 Enteromorpha; very thin, dark green Chaetomorpha-filaments. 
von m 20.3 er Najas falciculata, 
Ne gy ip 8 | Al 4 2 101 28 24 thin and thick Enteromorpha mixed with some thin Chaetomorpha-filaments with thick cell-walls, 
| 5 
„np D 9.9 5 2 36 == = Najas falciculata. 
lbs „ 27.9 2 3 18 = = young fresh Enteromorpha; thin Chaetomorpha-filaments with thick cell-walls, not-coated. 
PPD » 15.2 2 4 43 = Es Najas falciculata; old Enteromorpha; rather thick Chaetomorpha-filaments with thin cell-walls, darkly 
coated at intervals. 
© > 5 ÿ 27.0 4 6 87 En LE, thin and thick Enteromorpha; fresh Chaetomorpha with thin cell-walls, 
| = 
Dn» 5 14.0 5 5 35 ie et Najas falciculata; dark blue-green mass consisting of thin, interwoven, filamentous Schizophyceae; 
Copepods, Gammaridea, Ostracods, Turbellaria. 
ITR » 27.85 D 4 68 = zi Enteromorpha and fresh thick Chaetomorpha-filaments with thin cell-walls. 
» on» m 16.2 2 0 5 aa Les Najas falciculata and a felt-like mass of thin interwoven filamentous Schizophyceae. 
WS > 5 „ 006 27.4 1 1 30 = JE Enteromorpha and thin Chaetomorpha-filaments with thick cell-walls. 
DP 5 » „ . | 15.1 5 14 29 er Najas faleiculata and a felt-like mass of thin interwoven filamentous Schizophyceae. 
