scholarly journals STUDY OF THERMAL REGIME EFFECT ON EUROPEAN EEL (ANGUILLA ANGUILLA) MALE REPRODUCTIVE PERFORMANCE DURING INDUCED SEXUAL MATURATION

2011 ◽  
Vol 4 (is1) ◽  
pp. 221-222
Author(s):  
Gallego V
Keyword(s):  
Reproductive Performance ◽  
Thermal Regime ◽  
Sexual Maturation ◽  
Anguilla Anguilla ◽  
European Eel

A size and age-structured model of the European eel (Anguilla anguilla L.)

1995 ◽  
Vol 52 (7) ◽  
pp. 1351-1367 ◽  
Author(s):  
G. A. De Leo ◽  
M. Gatto
Keyword(s):  
Sexual Maturation ◽  
Anguilla Anguilla ◽  
Population Data ◽  
Individual Growth ◽  
European Eel ◽  
Demographic Model ◽  
High Plasticity ◽  
Crucial Information ◽  
Age Structured ◽  
Age Structured Model

The life cycle of the European eel (Anguilla anguilla) presents several distinctive features, such as high plasticity in body growth, marked sexual dimorphism, sex ratio strongly skewed in favor of females and sexual maturation largely dependent upon the size of individuals. A demographic model incorporating all these characteristics is derived on the basis of a multiple classification of individuals by age and size, and variability in individual growth is explicitly included. Existing theory for size-structured stocks is extended to include the dependence of sexual maturation on size, while natural mortality is age specific. Using 1989 population data from Comacchio lagoons (Italy), we estimate mortality and metamorphosis rate and abundance in each age- and size-class for both yellow and silver eels, crucial information for the management of the Comacchio fishery. The use of a nonparametric technique (bootstrapping) yields not only the moments, but also the distributions of these estimates. Validation of the model is performed on the data collected in 1990. The approach adopted is very flexible and different assumptions about survival, sexual maturation, and net selectivity can be easily incorporated in the model.

Does a 5500-km swim trial stimulate early sexual maturation in the European eel (Anguilla anguilla L.)?

2007 ◽  
Vol 147 (4) ◽  
pp. 1095-1103 ◽  
Author(s):  
V. van Ginneken ◽  
S. Dufour ◽  
M. Sbaihi ◽  
P. Balm ◽  
K. Noorlander ◽  
...  
Keyword(s):  
Sexual Maturation ◽  
Anguilla Anguilla ◽  
European Eel

scholarly journals Variations in the gene expression of zona pellucida proteins, zpb and zpc, in female European eel (Anguilla anguilla) during induced sexual maturation

2012 ◽  
Vol 178 (2) ◽  
pp. 338-346 ◽  
Author(s):  
I. Mazzeo ◽  
D.S. Peñaranda ◽  
V. Gallego ◽  
J. Hildahl ◽  
R. Nourizadeh-Lillabadi ◽  
...  
Keyword(s):  
Gene Expression ◽  
Zona Pellucida ◽  
Sexual Maturation ◽  
Anguilla Anguilla ◽  
European Eel
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