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Now showing items 121-130 of 143
Enzyme electrophoresis in Tilapia zillii: a pattern for determining biochemical genetic markers for use in tilapia stock identification
Type: Journal Article
A variety of tissues from T. zillii was examined by horizontal starch gel electrophoresis to identify isozymes of potential use as genetic markers for stock identification. Techniques were assessed for 30 enzymes coded for ...
Developing technologies for restocking sandfish: Update on the WorldFish-SPC project in New Caledonia.
Type: Journal Article
The WorldFish Center project to develop strategies for restocking sea cucumbers is now in its fourth year. Its main purpose is to develop optimal release strategies for the restocking of sandfish (Holothuria scabra). ...
FAO developments in software for tropical fish stock assessment
Type: Journal Article
A brief account is given of microcomputer software developed by the marine Resources Service of FAO for theassessment of tropical fisheries. The packages are intended for users in developing countries who may not ...
Population parameters and exploitation rate of demersal fishes in Brunei Darussalam (1989-1990)
Type: Journal Article
In this paper, we document the results of retrospective analysis of length frequency data collected during a trawl survey in Brunei Darussalam from July 1989 to June 1990. The study forms part of concerted efforts under ...
Assessment of Lutjanus vivanus and Lutjanus buccanella in the north Caribbean coast of Costa Rica
Type: Journal Article
This paper presents results of stock assessment on two snapper species, Lutjanus vivanus and L. buccanella, in the north Caribbean coast of Costa Rica. Growth parameters, mortality rates, length-weight relationships, ...
Pen fish culture in reservoirs: an alternative to land based nurseries
Type: Journal Article
An experiment to rear carp seed was conducted in Tamil Nadu, India during October 2001 to April 2002 as a part of an ambitious programme aimed at standardization of pen fish rearing technology for production of stocking ...
Correction to the Beverton and Holt Z-estimator for truncated catch length-frequency distributions
Type: Journal Article
A method for estimating the instantaneous mortality rate (Z) is presented which was developed from a truncated equation for average length. The model has zero bias at equilibrium, but has no explicit solution for Z so that ...
Effective fluorochrome marking of juvenile sea cucumbers for sea ranching and restocking
Type: Journal Article
Marking of skeletal body parts of marine animals with fluorochromes, such as tetracycline and calcein, can provide a valuable tool for mark-recapture studies. In recent decades, both fluorochromes have been used extensively ...
Can we use traditional length-based fish stock assessment when growth is seasonal?
Type: Journal Article
Based on simulated catch data, this contribution shows that standard length-converted catch curves cannot be used for accurately estimating total mortality when growth oscillates seasonally. Some implications for length-based ...
A simulation model of the dynamics of Peruvian anchoveta (Engraulis ringens)
Type: Journal Article
The article describes the key elements of a model simulating the dynamics of the anchoveta (Engraulis ringens) in the Peruvian upwelling system (4 degrees to 14 degrees South). This model, based on coupled differential ...