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Now showing items 11-19 of 19
Tabular data on marine fishes from Southern Africa. Part 1: Length-weight relationships
Type: Journal Article
The parameters a and b of length-weight relationship of the form W = aLˆb were computed for 122 species from graphs presented in R.van der Elst's "Guide to the Common Sea Fishes of Southern Africa".
On length-weight relationships. Part II: Computing mean weights from length statistics
Type: Journal Article
Assuming a known length-weight relationship, the formula for calculating the mean weight from grouped length statistics is recapitulated. Then a simple analytical method for calculating mean weight from basic length ...
Exemple de la contribution de l'analyse fsctorielle des correspondences pour suivre l'evolution de la structure d'une population piscicole
Type: Journal Article
This contribution demonstrates an application of correspondence analysis to length-frequency data of catfish (Ictalurus melas, lctaluridae) sampled by electrofishing in the Garonne River, near Toulouse, France. The available ...
Growth, mortality and recruitment of short-wing flying fish Oxyphorhampus micropterus in Bohol Sea, Philippines
Type: Journal Article
The von Bertalanffy growth parameters (L8 and K) were estimated, based on length-frequency data from the small scale fishery, and the Compleat ELEFAN software, for short wing flying fish Oxyphorhampus micropterus (Hemiramphidae) ...
Growth and mortality of Indian mackerel Rastrelliger kanagurta (Scombridae) in the Visayan Sea, Central Philippines
Type: Journal Article
The growth of Indian mackeral Rastrelliger kanagurta in the Visayas Sea, central Philippines, is estimated, based on length-frequency data from 1983 to 1987 and the Compleat ELEFAN program. Results are TL8 = 38 cm and K = ...
Tabular data on marine fishes from Southern Africa. Part II: growth parameters
Type: Journal Article
This contribution presents von Bertalanffy growth parameter estimates for 28 species of marine fishes derived from growth curves in R. van der Elst's "Guide to the Common Sea Fishes of Southern Africa".
On improving the resolution of the recruitment patterns of fishes
Type: Journal Article
It is proposed that the "recruitment pattern" routine of the ELEFAN II program can be modified to allow, in addition to length-frequency data, the use of "restructured" data files. An example, based on Oreochromis niloticus ...
Population dynamics of Nemipterus japonicus from the northern Arabian Sea, Pakistan
Type: Journal Article
Catch-per-effort and length-frequency data on threadfin bream Nemipterus japonicus (Nemipteridae) supplied by the staff of the R/V Dr. Fridtjof Nansen, covering the period September 1983 to June 1984, were analyzed using ...
The biometrics of marine fishes from the Gulf of Aden
Type: Journal Article
The growth parameters (L sub( infinity ), K, t sub(0)), total mortality and length-weight relationships of 23 speciesof fishes studied during a UNESCO-sponsored study of the fish populations of the Gulf of Aden, in the mid-1980s, ...