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Now showing items 21-30 of 36
The population dynamics of Nemipterus marginatus (Cuvier & Val.) off western Kalimantan, South China Sea
Type: Journal Article
The following parameter values are derived for a West Kalimantan (West Borneo) stock of the threadfin bream, Nemipterus marginatus : L infinity = 24.5 cm (L.T.), W infinity = 210 g, K = 0.42, t = -0.41 and M = 1.73. ...
Zur Fischereibiologie tropischer Nutztiere: Eine Bestandsaufnahme von Konzepten und Methoden
Type: Journal Article
Die Notwendigkeit, adaquate Methoden far die Untersuchung der Dynamik von tropischen Fischereiressourcen bewuBt zu entwickeln, ergibt sich (a) aus ihrer enormen Bedeutung Kir die Ernahrung und als Einkommensquelle von ...
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 ...
Growth, reproduction and mortality of the sea hare Dolabella auricularia (Gastropoda: Aplysiidae) in the Central Visayas, Philippines
Type: Journal Article
The growth parameters W infinity and K of the von Bertalanffy growth equation were estimated from size-frequency data of the sea hare D. auricularia using an objective, computer-based method. The results obtained from two ...
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 ...
Tropical stock assessment packages for programmable calculators and microcomputers
Type: Journal Article
Fishery biology, particularly the applied aspect of stock assessment, became a truly quantitative science in the mid-1950s, when the Beverton & Holt and Schaefer "workhorse" models for stock assessment were produced. The ...
A method for the analysis of pond growth experiments
Type: Journal Article
Pond growth experiments play an essential role in aquaculature research in assessing the growth potential of thevarious species and strains. A method is proposed for the analysis of pond growth experiments which should ...
On improving operation and use of the elefan programs. part 2, improving the estimation of L
Type: Journal Article
Four simple approaches which rely on slightly modified versions of ELEPHAN I and/or II are given for the estimation of length of fish.
The overfishing of marine resources: socioeconomic background in Southeast Asia
Type: Journal Article
A brief review of marine fishery development in Southeast Asia is given, with emphasis on the phase of rapid growth of catches that prevailed in the 1960s-1970s, and on the high expectations this phase generated, especially ...
A simple method for estimating the food consumption of fish populations from growth data and food conversion experiments
Type: Journal Article
A multiple-regression extension of the basic model is presented which accounts for the impact of factors other than body weight on values of K1 and p. This method is illustrated with an analysis of data on dab (Limanda limianda).