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Now showing items 101-110 of 143
Fish stock assessment in coral reefs: notes on the state of the art
Type: Journal Article
Coral reefs may produce as much as 10% of the annual world fish catch. Yet, very little investigation has been done on the biology of coral reef fishes, so that we know little about their growth rates and mortalities, vital ...
Spawning stock biomass-per-recruit analysis: a timely substitute for stock recruitment analysis
Type: Journal Article
Relative biomass per recruit of adult (i.e. sexually mature) fin to shellfish is shown to help in identifying levels of fishing mortality likely to lead to recruitment overfishing. This is illustrated with data from a ...
South Pacific tuna and billfish program
Type: Journal Article
The Tuna and Billfish Assessment Programme is a 3-year programme designed to provide a better understanding of the stocks of tuna and billfish throughout the central and western Pacific and also to determine the status of ...
Genetic diversity in wild stocks of the giant freshwater prawn (Macrobrachium rosenbergii): implications for aquaculture and conservation
Type: Journal Article
The giant freshwater prawn (Macrobrachium rosenbergii) is cultured widely around the world but little is known about the levels and patterns of genetic diversity in either wild or cultured stocks. Studies have suggested ...
Population parameters of 'corvina' (Plagioscion squamosissimus) in the Barra Bonita Reservoir, Brazil
Type: Journal Article
Estimates for the growth parameters (L sub( infinity ) and K) mortality coefficients (Z,M and F) and exploitation rate (E) for the sciaenid Plagioscion squamosissimus are presented. The following results were obtained: 1) ...
Growth of juvenile Actinopyga mauritiana (Holothuroidea) in captivity
Type: Journal Article
In this study, we examined the growth of juvenile Actinopyga mauritiana in captivity at three levels of stocking biomass, and under two feeding regimes, for 12 months. We chose this species because of its availability on ...
Catch-effort relationship in Pacific bigeye tuna fishery
Type: Journal Article
Some problems associated with fitting surplus production models to unsuitable data are discussed. This is illustrated by an application of the Schaefer, Fox and PRODFIT models to Pacific Ocean bigeye tuna (Thunnus obesus ...
Length-weight relationship of fishes caught in the Itaipu Reservoir, Parana, Brazil
Type: Journal Article
Parameters and related statistics of the length-weight relationship of the form W=aL super(b) are presented for 72 species of fish caught in the area of the Itaipu Reservoir in Parana, Brazil. The b values varied between ...
On improving operation and use of the elefan programs. part 3, correcting length-frequency data for the effects of gear selection and/or incomplete recruitment
Type: Journal Article
One important feature of length€”frequency data that is usually ignored when data are collected for subsequent estimation of growth and various related parameter estimates is that length€”frequency data are necessarily ...
Sandfish (Holothuris scabra) with shrimp (Penaeus monodon) co-culture tank trials
Type: Journal Article
Seven tank trials were undertaken involving the co-culture of sandfish and shrimp on sand. Sizes, stocking densities, feeding and other conditions were all varied. Results indicated that powdered sargassum did not support ...