Appendix I

Results from all semi-artificial spawning of Clarias gariepinus

Date	Weight female A (g)	Weight female B (g)	Total wt females	Filter	Number larvae	remarks
16-Feb-95	200		200	Sand		Silt
16-Feb-95	200		200	Sand	2 003
16-Feb-95	200		200	Sand		Silt
16-Feb-95	200		200	Sand	709
16-Feb-95	200		200	Sand		Sit
16-Feb-95	200		200	Sand		Eggs died
09-Mar-95	150	150	300	Sand	5	Silt
09-Mar-95	150	150	300	sand		Larvae died
09-Mar-95	150	150	300	Sand	1 021
05-Apr-95	100	600	700	Sand		Larvae died
05-Apr-95	110	95	205	Sand		Larvae died
05-Apr-95	110	106	216	Sand		Larvae died
05-Apr-95	525		525	Sand		Larvae died
17-Mar-95	200	200	400	Mattress	2 554
17-Mar-95	200	200	400	Mattress		Female died
17-Mar-95	200	200	400	Mattress	2 075
22-Mar-95	125	125	250	Mattress		Female died
22-Mar-95	125	125	250	Mattress	1 937
22-Mar-95	104	120	224	Mattress	1 034
23-Mar-95	350		350	Mattress	5 304
23-Mar-95	350		350	Mattress	200
27-Mar-95	90	125	215	Mattress	1 203
27-Mar-95	36	77	163	Mattress	185
27-Mar-95	156	162	318	Mattress	2 600
27-Mar-95	126	112	238	Mattress		Female died
27-Mar-95	127	161	288	Mattress	1 424
05-Apr-95	125	95	220	Mattress	400
05-Apr-95	160	145	305	Mattress	4 235
05-Apr-95	290	160	450	Mattress	2 450
05-Apr-95	130	155	285	Mattress	1062
08-Apr-95	550		550	Mattress	10 000	estimate
08-Apr-95	520		520	Mattress	6 000	estimate
08-Apr-95	150		150	Mattress		Female died
10-Apr-95	150		150	Mattress	707
18-Apr-95	250		250	Mattress	500
18-Apr-95	215		215	Mattress	4 231
18-Apr-95	265		265	Mattress	203
18-Apr-95	300		300	Mattress	6 751
19-Apr-95	350		350	Mattress	5 311
19-Apr-95	325		325	Mattress	2 422
19-Apr-95	355		355	Mattress		Female died
24-Apr-95	235		235	Mattress		No spawning
24-Apr-95	315		315	Mattress	6 231
24-Apr-95	230		230	Mattress	2 566
24-Apr-95	210		210	Mattress	10 428
24-Apr-95	340		340	Mattress	5 425
02-May-95	425		425	Mattress	4 221
02-May-95	420		420	Mattress	6 524
02-May-95	450		450	Mattress	5 642
02-May-95	450		450	Mattress	6 431
08-May-95	430		430	Mattress	2 520
08-May-95	420		420	Mattress	4 220
08-May-95	445		445	Mattress		Female died
08-May-95	450		450	Mattress	3 432
15-May-95	380		380	Mattress	4 220
15-May-95	350		350	Mattress	3 562
15-May-95	400		400	Mattress		Female died
06-Jun-95	120		120	Mattress	3 822	Net barrier
06-Jun-95	120		120	Mattress	4 283	Net barrier
12-Jun-95	300		300	Mattress	2 328	Net barrier
12-Jun-95	300		300	Mattress	1 052	Net barrier
13-Jun-95	450		450	Mattress	5 845	Net barrier
12-Jul-95	400		400	Mattress	3 722	Net barrier
13-Jul-95	400		400	Mattress	13411	Net barrier
				Total	168778