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Now showing items 51-60 of 102
On comparing groups of fishes based on length-weight relationships
Type: Journal Article
F. Torres, Jr., in a 1991 Fishbyte article, presented length-weight relationships derived from 122 graphs in van der Elst's 1981 "A guide to the common sea fishes of southern Africa". This author analyzes Torres's tabulated ...
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 ...
Length-weight relationships of demersal fishes from the Gulf of Salamanca, Colombia. [second part]
Type: Journal Article
The parameters a and b of the length-weight relationship of the form W=a L super(b) were computed for 46 species caught in a series of demersal trawl hauls over the period 1995-1997 in the Gulf of Salamanca, Colombia.
Population parameters of Sardinella species in the coastal waters of Dar es Salaam, Tanzania
Type: Journal Article
Population parameters of Sardinella species from the artisanal purse seine and ring net fisheries of the Dar es Salaam area, Tanzania, were investigated based on length-frequency data, analyzed with FAO's LFSA and ICLARM's ...
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 ...
Some population parameters of commercially-important fishes in the Philippines
Type: Book
The estimates of the von Bertalanffy Growth Function (VBGF) parameters and mortality parameters (Z and M) for some of the commercially-important species caught in the Philippine waters are presented using the FAO-ICLARM ...
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 = ...
Growth, mortality and recruitment of exploited small pelagic fishes in the Gulf of California, Mexico
Type: Journal Article
Preliminary, length-based von Bertalanffy growth parameter estimates for Sardinops caeruleus, Opisthonema libertate, Scomber japonicus, Etrumeus teres, and Engraulis mordax, caught in the pelagic fishery based in Guaymas, ...
Growth, mortality and recruitment of Omani abalone (Haliotis mariae)
Type: Journal Article
Historical length-frequency data of Oman abalone (Haliotis mariae) from two areas (Sadh and Hadbin) of the Dhofar coast of the Sultanate of Oman were used to estimate growth parameters by nonlinear least square fitting. ...