Studies on age determination and growth pattern of the wedge sole Dicologoglossa cuneata (Moreau, 1881) in the Spanish waters of the Gulf of Cadiz (southwest Iberian Peninsula)
Authors
Jiménez, M.P. (María Paz); Piñeiro-Álvarez, C.G. (Carmen Gloria); Sobrino, I. (Ignacio); Ramos, F. (Fernando)Date
2001Type
articleKeywords
Dicologoglossa cuneataiWedge solea
Age
Growth
Gulf of Cadiz
Acedía
Edad
Crecimiento
Abstract
ABSTRACT
The wedge sole Dicologoglossa cuneata (Moreau, 1881) is a typical coastal soleid which is considered
as one of the main target species in the demersal fishery of Spain fs southern Atlantic
region. This paper presents a study on the growth pattern of wedge sole in the Gulf of Cadiz. Age
was determined by observing and analysing whole otoliths (sagittae), thereby obtaining the mean
lengths at age for males and females in the year 1993 (from 15-20.9 cm TL and 1-4 years for
males; from 15.9-23.6 cm TL and 1-6 years for females). In addition, the growth parameters for
both sexes were obtained according to the Von Bertalanffy equation: L ‡ = 24 cm, K = 0.343 and
t0 = .1.384 for males; L ‡ = 27 cm, K = 0.296 and t0 = .1.520 for females (showing growth differences
growth between the sexes). These were compared with results reported by other authors
for other areas of the species fs distribution range. Through the interpretation of the otolith and
its edge, a sequence of annual ... RESUMEN
La acedia Dicologoglossa cuneata (Moreau, 1881) es un soleido tipicamente costero, considerado como
una de las especies objetivo de las pesquerias demersales de la region suratlantica iberica. En este trabajo se
estudia el patron de crecimiento de la acedia del golfo de Cadiz. La determinacion de la edad se realizo
mediante la lectura de otolitos enteros (sagitta), obteniendose las tallas medias por clase de edad para machos
y hembras del ano 1993 (entre 15 y 20,9 cm de longitud total y de 1 a 4 anos para machos; de 15,9 a 23,6
cm de longitud total y de 1 a 6 anos para hembras). Por otra parte, se estimaron los parametros de crecimiento
para ambos sexos segun la ecuacion de Von Bertalanffy: L ‡ = 24 cm, K = 0,343 y t0 = .1,384 para machos;
L ‡ = 27 cm, K = 0,296 y t0 = .1,520 para hembras, presentando ambos sexos un crecimiento diferente. Estos
resultados se compararon con los obtenidos por otros autores en otras areas del rango de distribucion de la
especie. Mediante ...
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