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Now showing items 31-40 of 53
The pond refuge in rice-fish systems
Type: Journal Article
Small fishponds on irrigated and rainfed rice farms may be used by farmers as pond refuges to hold fish that foragein the ricefield, for breeding and nursing purposes, and for holding fish after rice harvesting. The pond ...
The use of surplus-yield models in the economic analysis of a fishery
Type: Journal Article
Discounted cash flow techniques, as typically employed in the evaluation of fishery projects, employ constant cost and revenue streams over the duration of the project. The implicit assumption is that additional effort in ...
Problems in estimating growth parameters of the wahoo Acanthocybium solandri (Scombridae) using the ELEFAN 1 program
Type: Journal Article
Plots of Rn, the goodness-of-fit index of teh ELEFAN I program versus K can be used jointly with fixed values of the other growth parameters to identify "optimum values" of K. This is here illustrated using data on wahoo ...
Maximo rendimiento sostenible de la pesqueria comercial en el Departamento de Loreto, Peru
Type: Journal Article
Catch and effort data from the river fisheries of the Peruvian part of Amazonia are presented, and used to fit a Schaefer-type surplus production model. This suggests that present effort is in excess of what is required ...
Integration of aquaculture and agriculture: a route to sustainable farming systems
Type: Journal Article
The integration of agriculture and aquaculture as a means of intensifying resource use and improving the productivity of many current farming practices in Southeast Asian and African countries is discussed. A brief account ...
International research collaboration in rice-fish research
Type: Journal Article
Growing fish in ricefields could dramatically increase farmers' incomes from rice lands and fish production in Asia. This article describes how collaborative international research can strengthen national research ia ...
Estimating the food consumption of fishes: one step in linking a species with its ecosystem
Type: Journal Article
Details are given of a new software package MAXIMS which may be used to estimate the daily food consumption of fish. The software estimates the feeding times, the rates of ingestion and evacuation and related parameters. ...
An empirical comparison of seasonal growth models
Type: Journal Article
A model for describing the seasonally oscillating growth of fish is presented and compared with the commonly used model of D. Pauly and G. Gaschutz (PG). The new model produces results similar to those obtained from teh ...
Drawing pictures of integrated farms helps everyone: an example from Vietnam
Type: Journal Article
The participation of farmers in the research process related to the development of integrated farming processes is discussed with respect to observations made on the Mekong Delta in Vietnam. The use of drawing pictures of ...
Who's working on giant clam culture?
Type: Journal Article
An examination is made of the literature on giant clam (Tridacna ) culture methods induced spawning, larvae, larval and post-larval rearing and socioeconomics. ASFA and the ICLARM library and professional staff collections ...