Annex 25 Creel survey in Mberengwa and Insiza Districts

Objectives

To assess fishing effort and catch per unit of effort over a period of year
To find entry points for the socio-economic data gathering

Method

The creel survey is carried out during three consecutive days from which one is a holiday or a weekend day.

At 9H00, 12H00, 15H00 and 18H00 the number of fishers around the dam is counted, eventually split up in maximum 6 different parts. A sketch is made of the dam with the different parts. Criterion for subdivision in parts is the fact that it should be able to count all fishers in each part from one point.

In between the counting of all fishers, a number of fishers (randomly women, men and children) is interviewed to determine the time that they fished and the quantity of fish that they caught. A chart with the different fish species is available for easy identification of the fish.

Identity of the fishers is kept secret with the interviewer. These data are not transmitted to ALCOM or any other organization.

Reporting

There are three different creel survey forms:

Form 1 is used to note the number of fishers at a certain time in every part of the dam
Form 2 is used to note the individual fisher's data on fishing time and catch + eventually a number of additional data on fishing economics
The identity data are noted down in a personal and confidential booklet.

The first two forms will be handed over at every visit of the ALCOM team to the reservoir (monthly). At the same time results from previous creel surveys will be discussed. The confidential data stay in possession of the community member.

Time schedule

Creel survey will take place every month at various moments: beginning, middle or end of the month but every time during 3 consecutive days.

PRELIMINARY CREEL SURVEY RESULTS FROM ZIMBABWE
Number of fishers counted per 3 hour intervals:
Sum of Number	Dam name
Date	Avoca	Biri	Denje	Gwavamtangwi	Imbahuru	Mutuvi	Siwaze	Vurasha
28/01/96	0	0	0	0	0	0	71	0
31/01/96	0	0	19	0	0	0	0	0
04/02/96	0	0	13	0	0	0	0	0
06/02/96	0	0	2	0	0	0	8	0
07/02/96	0	0	0	0	0	0	55	0
08/02/96	13	0	0	0	0	0	0	0
10/02/96	28	0	11	0	28	0	0	0
11/02/96	0	99	0	0	43	20	0	0
12/02/96	0	0	0	46	10	5	0	0
13/02/96	0	42	0	17	9	7	0	0
14/02/96	22	0	0	0	14	0	34	5
15/02/96	0	0	0	0	0	0	2	19
16/02/96	0	0	0	0	0	0	0	9
17/02/96	0	0	6	0	0	0	0	0
18/02/96	0	0	0	105	0	0	0	0
19/02/96	0	5	0	0	0	0	0	0
Grand Total	63	146	51	168	104	32	170	33

Fish-hours/day:	63	146	30.6	168	62.4	32	170	33
CPUE	190	190	190	190	190	190	190	190
Daily catch (kg)	11.97	27.74	5.814	31.92	11.856	6.08	32.3	6.27
Surface (ha)	2	107	15	10	7.1	19.3	120	100
Catch (kg/ha/yr)	2185	95	141	1165	609	115	98	23

Notes:
Sum of number is the number of fishers counted on a 3 hour interval
Fish-hours per day is number of fishers on 3 hour interval times 3 divided by number of creel survey days
CPUE for hook and line fishing was determined for all dams together by the creel survey (determined at 190 g/hour)
Daily catch = Fish-hours/day times CPUE in kg/hour
IMPORTANT NOTE: DATA ARE FOR 1 MONTH ONLY WITH GENERAL CPUE AND ONLY HOOK AND LINE

Preliminary Creel Survey results from Zimbabwe
Number of persons interviewed by gender and dam:
	Count of Gender	Gender
	Dam	Boy	Girl	Man	Woman	(blank)	Grand Total
	Avoca	10	1	7	5	0	23
	Biri	1	2	6	7	0	16
	Denje	6	0	10	1	0	17
	Gwavamutangwi	4	0	9	4	0	17
	Imbahuru	13	4	20	20	0	57
	Mutuvi	1	1	1	2	0	5
	Siwaze	2	3	21	21	0	47
	Vurasha	2	0	2	4	0	8
	Grand Total	39	11	76	64	0	190

Fishing gear use frequency by gender:
	Count of method	method
	Gender	Axe	Chikwa	Hook & I	Long line	Mosq. ne	Net	Scoop net	Traps	Grand Total
	Boy	1	1	35	0	0	1	1	0	39
	Girl	0	0	10	0	0	0	0	1	11
	Man	1	0	54	1	1	6	13	0	76
	Woman	0	0	60	0	1	0	0	3	64
	(blank)	0	0	7	0	0	0	0	0	7
	Grand Total	2	1	166	1	2	7	14	4	197
CPUE for each gear:
	CPUE (g/hour)	*	*	190	*	*	*	852	832

	* Not enough reliable data to calculate CPUE