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A simple index of metabolic level in fishes
Type: Journal Article
Details are given of the use of an aspect ratio of the caudal fin of fish as an index of metabolic level. Studies have shown that this ratio, besides correlating with food consumption, also has close relationships with ...
Length-converted catch curves: a powerful tool for fisheries research in the Tropics (part 2)
Type: Journal Article
A method is described for the determination of the selection curve of fishing gear from the shape of the ascending arm of a length-converted catch curve and growth parameters.
The general von Bertalanffy growth function: possible use in the Beverton and Holt model
Type: Journal Article
Using the concept of generalized Von Bertalanffy growth formula developed by Pauly and Gasch? tz, we tried to integrate the basic equation of Beverton and Holt and to check on changes in the quantitative evaluation of ...
An objective method for determining fish growth from length-frequency data
Type: Journal Article
A computing procedure was devised, to determine fish growth, that traces through a series of length frequencysamples sequentially arranged in time, a multitude of growth curves, and then selects the single curve which best ...
Preliminary length-based growth parameter estimates of peruvian sardine (Sardinops Sagax Sagax)
Type: Journal Article
Growth parameter estimates of the Peruvian sardine (Sardinops sagax sagax ) were obtained using the ELEFAN I programme to analyze length-frequency data.
Fish mariculture studies in China
Type: Journal Article
The development of marine fish aquaculture in China is discussed; major species cultured include: mullets, tilapias, milkfish, porgies, groupers, flounders and seahorses.
Notes on the assessment of the stocks of small pelagic species on the basis of length frequency analysis and converted catch curves
Type: Journal Article
Difficulties are usually encountered when small pelagic species are to be assessed, using simple classical methods such as the surplus production model. Interannual variations of recruitment and fishing patterns and ...
On the interrelationships between naturual mortality, growth parameters, and mean environmental temperature in 175 fish stocks
Type: Journal Article
A compilation of values for the exponential coefficient of natural mortality (M) is given for 175 different stocks of fish distributed in 84 species, both freshwater and marine, and ranging from polar to tropical waters.
The fish artists
Type: Journal Article
The advantages of a fish painting over a photograph are many. Usually the fish photographed is dead, so its color has probably changed; the fins have to be propped up and damage often occurs. In life, a fish rarely extends ...
Oil, fish and the sun and the wind
Type: Journal Article
The energy sources of importance in the fishing industry are discussed in detail. An account is given of fish catching,fish growing and fish saving and the role energy plays in each. Wind, sun and biogas are all considered ...