Dr. Éva Murai szerk.: Miscellanea Zoologica Hungarica 3. 1985 (Budapest, 1985)

Kiss, I.: Ecological studies on zooplankton species important for fish farms. I. Population biological investigations on zooplankton breeds

Brachionus calyciflorus Asplanchna Date of sampling Number of days after flooding total number of individuals ind. /lit. juveniles without eggs ind. /lit. iuveniles/the total number of individuals amictic females ind. /lit. amictic fern. / total number of individuals number of juveniles/one female mictic females • ~3 ephippial females ind. /Ht. Total number of individuals 18.08 3 173 0 132.2 76.4 40.8 23. 5 3. 2 0. 0 O.O 12 ,2 20. 08 5 408 2 286.0 70. 0 121.9 29. 8 2. 3 0. 3 ).0 186. 0 22. 08 7 651 4 314. 3 48. 2 322. 7 49. 5 1.0 12. 0 2.4 212. 2 25. 08 10 736 0 377. 5 51.2 328. 1 44. 6 1.2 8. 4 22. 0 319. 8 27. 08 12 50 3 1 313. 6 62. 3 169.0 33. 6 1.9 2. 1 18. 4 617. 6 29. 08 14 357 2 274. 8 76.9 76. 3 21. 5 3. 0. 0 6. 1 250. 4 01. 09 17 417 3 310. 9 74. 6 101. 4 24. 3 3. . 0. 0 5. 0 120. 1 03. 09 19 307 .8 291. 6 94. 7 16.2 5. 3 18. 0 0. 0 O.O 74. 9 05. 09 21 221 3 119. 0 53. 8 2. 3 1. 0 51. 7 0. 0 0. 0 82. 3 09. 09 25 113 9 1. 0 3.9 3. 3 0. 0 0.0 65. 0 Table 3 Some population biological parameters of the Moina brachiata-] breed I Date of sampling Number of days after introduction Total number of individuals ind. /lit. Grown-up amictic females ind. /lit. Reproductive females 1 Repr. females/total number of amictic females Average number of eggs Adults, no longer producing eggs ind. /lit. Juveniles ind. /lit. Juveniles/total number of individuals b°Juveniles/one reproductive females Males ind. /lit. Ephippial females ind. /lit. 24. 07 3 2.3 1 1 1 ] 100. 0 10. 3 0.0 1 .2 52. 2 1 1 0 H 0. 0 2 5.07 4 44. 3 24 0 23 2 96. 6 17. 8 0.8 20 . 3 i 5 a 0 9 0 .0 0. 0 28. 07 7 300. 2 156 8 152 3 97. 1 13. 5 4. 5 143 . 4 47. 8 0 9 0 0 0. 0 30. 07 9 405. 1 156 3 156 3 100. 0 14.0 0.0 248 . 8 61. 4 1 6 0 0 0.0 01.08 ] 1 1255. 1 460 0 455 0 98. 9 8. 6 5. 0 782 . 5 62. 4 1 7 7 4 5.2 02. 08 12 551. 4 105 1 83 £ 79. 8 10. 9 21. 3 200 . 0 3 S

. 3 2 4 182 5 63. 8 04. 08 14 631. 4 305 1 261 3 85. 6 5.9 43. 8 L36 .2 21. 6 0 5 25 1 165. 0 06.08 16 290.2 124 0 110 ] 88. 8 4. 6 13. 8 83 .8 28. 9 0 8 0 0 82. 5 08.08 18 285. 0 150 0 142 5 95. 0 7.0 7. 5 120 . 0 42. 1 0 8 0 0 15. 0 11. 08 21 67. 5 27 5 100 0 8. 1 0. 0 37. 5 37 . 5 55. 5 I 4 0 (1 2. 5