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Now showing items 31-40 of 52
No relationship between fecundity and annual reproductive rate in bony fish
Type: Journal Article
There is still a widespread notion that bony fishes with high fecundities are more productive and therefore more resistant to overexploitation. The purpose of this study was to formally explore the relationship between ...
Length-weight relationships for some important forage crustaceans from South Africa
Type: Journal Article
The diet of marine animals is usually determined by stomach content analysis. Although partially digested prey fragments can often be identified to species level, it is difficult to estimate the original mass of the prey ...
Disaggregated analysis of fish supply, demand and trade in Asia : baseline model and estimation strategy
Type: Journal Article
Quantitative modeling of fish supply, demand and trade is a useful tool for analyzing recent structural changes, such as the rapid development of aquaculture. Existing models are, however, limited by their use of highly ...
Length-weight relationship of marine fishes from southern Brazil
Type: Journal Article
The relationship between length (L) and weight (W) was estimated for 80 species belonging to 50 families of marine fishes from the shelf and upper slope of southern Brazil (lat. 28°S - 34°S). Sample sizes (n) for different ...
Fitting growth with the von Bertalanffy growth function : a comparison of three approaches of multivariate analysis of fish growth in aquaculture experiments
Type: Journal Article
Three approaches for multivariate analysis of fish growth in aquaculture experiments with Nile tilapia (Oreochromis niloticus niloticus L.) based on the von Bertalan¡y growth curve are presented and compared. The approaches ...
Length-weight relationship of marine fish species off Sao Sebastiao system, Sao Paulo, Souteastern Brazil
Type: Journal Article
The parameters a and b of the length-weight relationship of the form W = a . L super(b) were estimated for 57 fish species sampled in Sao Sebastiao Channel and shelf system in 1997, Sao Paulo, Brazil. The b values ranged ...
On-farm trials with rice fish cultivation in the west Kano rice irrigation scheme, Kenya
Type: Journal Article
The viability of integrating rice farming with fish culture was studied in ten (10) rice plots. The onfarm research was done during one rice-growing season starting May 2003. The rice variety used was IR 2793-80-1 while ...
Length-weight relationship and relative condition of Heterobranchus longifilis (Valenciennes) from Idodo River, Nigeria
Type: Journal Article
Length-weight relationship parameters of Heterobranchus longifilis males, females and combined sexes are given. The samples were collected from Idodo River, with size ranging from 123 mm total length, L, to 936 mm L. The ...
Population parameters of small pelagic fishes caught off Tawi-Tawi, Philippines
Type: Journal Article
Growth and mortality parameters, exploitation rates and annual recruitment patterns were estimated from monthly length-frequency samples for Sardinella longiceps, S. fimbriata, S. Albella, Decapterus macrosoma, Dipterygonatus ...
Spatial Linear Approximate to Almost Ideal Demand System
Type: Journal Article
The paper introduces two spatial systems of demand equation models that are variants of the Linear Approximate to Almost Ideal Demand Systems (LA/AIDS) with habit formation. Specifically, the first model incorporates spatial ...