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Using eye lens diameter as age indicator of young Lithognathus mormyrus and Diplodus vulgaris
Type: Journal Article
Eye lens diameter was analyzed in two sparid fish species, Lithognathus mormyrus and Diplodus vulgaris, in order to determine the possibility of using these data for age determination. The results showed that the technique ...
Length-weight relationships of demersal fishes from the upper continental slope off Colombia
Type: Journal Article
Parameters of the length–weight relationship of the form W=aLb are presented for 45 demersal fish species caught on the upper continental slope of the Caribbean Sea off Colombia. The b values varied between 2.13 and 4.97, ...
Length-weight relationship of small pelagic fish species of the southeast and South Brazilian Exclusive Economic Zone
Type: Journal Article
The length-weight relationship (LWR) parameters of 23 small pelagic fish species (belonging to 13 families) from the south-southeast Brazilian Exclusive Economic Zone in 1996 and 1997 are presented. The b values varied ...
Integrating fish and azolla into rice-duck farming in Asia
Type: Journal Article
Several countries in Asia practice integrated rice-duck farming. On-farm resources such as duck manure and feed waste are not adequately used and recycled in the system. This indicates the potential for research to increase ...
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 ...
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 ...
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 ...
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 ...
Empirical relationships to estimate asymptotic length, length at first maturity and length at maximum yield per recruit in fishes, with a simple method to evaluate length frequency data
Type: Journal Article
Empirical relationships are presented to estimate in fishes, asymptotic length from maximum observed length (L<sub>max</sub>), length at first maturity (L<sub>m</sub>) from L, life span (tmax) from age at first maturity ...