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Aquaculture technology research for smallholder farmers in rural malawi
Type: Conference Paper
In order to develop aquaculture systems and technologies relevant to the maize-based famring system in rural Africa, ICLARM is conducting farmer-participatory research in Malawi. This involves farmer-researcher interaction ...
Training resource book for participatory experimental design: report of a Research Design Workshop on Participatory Design of On-farm Experiments of the ICAR/IRRI Collaborative Rice Research Project
Type: Book
This book carries on from previous volumes on agro-ecosystem mapping and farming systems diagnosis (see TN2 and TN3).
The Genetic Improvement of Farmed Tilapias (GIFT) project: the story so far
Type: Journal Article
This issue of Naga features three articles about a project on the Genetic Improvement of Farmed Tilapias (GIFT) and a related article on the trend to genetic deterioration in some carp hatcheries. The first is on the genesis ...
A program for constructing length-converted growth curves when growth is seasonal
Type: Journal Article
Following Sparre's (1990) demonstration that length-converted catch curves overestimate total mortality when growth is seasonal, Pauly (1990) presented a method for constructing length-converted growth curves that allow ...
Recherche et formation pour le developpement des systemes de production integree agriculture-elevage-pisciculture en zone tropicale
Type: Working Paper
There is a vast potential for Asia's numerous and needy small-scale farmers to enjoy the benefits of integration of aquaculture into farming systems. This publication attempts to create a framework for an interdisciplinary ...
Time recovery for exploited fish populations based on surplus yield models
Type: Journal Article
A new method to estimate the time recovery of exploited population based on M.B. Schaefer's theory is proposed. The parameters used as follows: current population size (alphaP sub( infinity )'), target population level ...
Concurrent rice-fish trials: comparing regular and border planting patterns
Type: Journal Article
Details are given of experiments conducted at the Freshwater Aquaculture Centre at Munoz, Philippines, to investigate the effects of varying the rice planting pattern on fish yields in integrated rice field aquaculture ...
Growth of Pomadasys kaakan (Haemulidae) off the coast of Pakistan
Type: Journal Article
The growth parameters of javelin grunter Pomadasys kaakan (=P. hasta, Haemulidae) were estimated from length-frequency samples collected from December 1988 to February 1989 along the Pakistan coast. They are L sub( infinity ...
Supply response functions of two fish species in the Arabian Gulf area
Type: Journal Article
A polynomial distributed lag model was fitted to monthly fish production data from the Arabian Gulf, Saudi Arabia, inorder to determine the nature of the lagged output response resulting from a change in fish price. Results ...
Exemple de la contribution de l'analyse fsctorielle des correspondences pour suivre l'evolution de la structure d'une population piscicole
Type: Journal Article
This contribution demonstrates an application of correspondence analysis to length-frequency data of catfish (Ictalurus melas, lctaluridae) sampled by electrofishing in the Garonne River, near Toulouse, France. The available ...