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Fish as Biocontrol Agents in Rice: The Potential of Common Carp Cyprinus carpio (L.) and Nile Tilapia Oreochromis niloticus (L.)

Series: Tropical Agroecology Volume: 8

By: M Halwart

169 pages, Photos, illus

Joseph Margraf Verlag

Paperback | Dec 1995 | #53999 | ISBN: 3823612417
Availability: Usually dispatched within 1-2 weeks Details
NHBS Price: £26.99 $35/€30 approx

About this book

Worldwide, there is an increasing need for sustainable crop production making efficient use of scarce natural resources. The integration of fish culture in rice-based farming systems has a long tradition in parts of Asia and, after a period of heavy pesticide use, rice-fish culture is currently regaining importance in the region. The economic viability of this integrated enterprise has been documented in many studies, however, agro-ecological impacts have received little attention. This book deals with the contribution of two common and widespread fish species to Integrated Pest Management (IPM), particularly the biological control of pests, in rice. In two introductory chapters, current ecological knowledge on the husbandry of common carp and Nile tilapia in rice fields is reviewed, and an overview on insect and snail pests associated with rice production in Asia is provided. In the following chapters, a detailed description of design and implementation of the experimental work from five consecutive seasons is given: functional response studies in aquaria, the activity pattern of fish in rice fields, the qualitative and quantitative composition of the arthopod fauna in rice-fish and rice monoculture, and the impact of fish on snails at various levels of fish density and snail infestation. A preliminary stochastic, individual-based model is developed which investigates the population dynamics of the golden apple snail under different predation scenarios. Biological control of pests by fish, and the prospects for integrating fish into rice fields are discussed in the light of the results. Conclusions are drawn on how pest control by fish can be enhanced. The text concludes with recommendations on future research.


Fish in rice fields; pests in Asian rice farming systems, with special reference to the golden apple snail pomacea canaliculata; general approach and methodology; aquaria experiments; field experiments; the golden apple snail population ecology in rice-fish and rice monoculture - a modelling approach; integrated evaluation of the results; recommendations for future research programmes.

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