Weed control by adult and juvenile tilapia Tilapia rendalli in rainfed ponds

Brummett, R.E. (1995) Weed control by adult and juvenile tilapia Tilapia rendalli in rainfed ponds. Naga, the ICLARM Quarterly, 18(1), pp. 25-28.

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Abstract

Two studies were conducted in consecutive years over the time period 14 January to 1 July to determine whether labor-savings and fish growth enhancement could be achieved by stocking Tilapia rendalli directly into ponds containing weeds left from a dry period. Six replicates 200 sq. m ponds located at the Malawi National Aquaculture Centre, Domasi were drained, left dry for 63 days and natural growth of weeds was allowed. All ponds were stocked with 200 T. rendalli fingerlings (study 1) or adults (study 2) averaging 4.6 g (40 mm TL) and 47.7 (130 mm TL), respectively. For T. rendalli juveniles, final standing stock, growth and offspring production were significantly (P<0.05) better in fed than in weedy ponds. Average weight of fingerlings were significantly (P<0.05) different between the two treatments. For T. rendalli adults, final standing stock, growth and offspring production were not affected by the presence of weeds.

Item Type: Article
Title: Weed control by adult and juvenile tilapia Tilapia rendalli in rainfed ponds
Personal Creator/Author:
CreatorsEmail
Brummett, R.E.
Journal or Publication Title: Naga, the ICLARM Quarterly
Volume: 18
Number: 1
Page Range: pp. 25-28
Date: 1995
ISSN: 0116-290X
Issuing Agency: WorldFish Center
Uncontrolled Keywords: Biological control; Plant control; Aquatic plants; Herbivorous fish; Tilapia culture; Juveniles; Fish ponds; Tilapia rendalli
Subjects: Aquaculture
Item ID: 9103
Depositing User: Mr William Ko
Date Deposited: 26 Nov 2012 12:51
Last Modified: 26 Nov 2012 12:51
URI: http://aquaticcommons.org/id/eprint/9103

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