Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela

We studied fecundity and growth in populations of the silver mullet, Mugilcurema, in coastal areas of northeastern Venezuela between March 1992 and July 1993. The average number of oocytes in gonads of 23-42 cm adults was 54 x 104, and lhe relative fecundity was ! 311 oocytes g-I of fish. The size o...

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Autores principales:	Marin E, Baumar J, Dodson, Julián J
Formato:	Online
Idioma:	eng
Publicado:	Universidad de Costa Rica 2000
Acceso en línea:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/18755

id	RBT18755
record_format	ojs
spelling	RBT187552022-06-13T17:49:51Z Age, growth and fecundity oC tbe silver mullet, Mugil curema (Pisces: Mugilidae), in coastal areas Northeastern Venezuela Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela Marin E, Baumar J Dodson, Julián J mugil eurema mugilidae age growth fecundity We studied fecundity and growth in populations of the silver mullet, Mugilcurema, in coastal areas of northeastern Venezuela between March 1992 and July 1993. The average number of oocytes in gonads of 23-42 cm adults was 54 x 104, and lhe relative fecundity was ! 311 oocytes g-I of fish. The size of mature oocytes did not vary in different portions of the same gonad (p > 0.05) or among the adults in three populations studied. The average egg diameter for adults was 426 ¡lm (CI=4.34). Age of juveniles, colIected from the La Restinga Lagoon at about monthly intervals, from counts of growth lines on the otoliths ranged from 50 to 240 days. The relation of age (number of growth lines) to standard length follows an exponential growth curve. The growth ofjuveniles varied seasonally and was greatest during the rain y season C April to August), when temperatures were highes!. The time of spawning has probably been adapted so Ihat peak recruitment into the lagoons occurs just prior lo the rainy season when conditions for growth are most favorable. We studied fecundity and growth in populations of the silver mullet, Mugilcurema, in coastal areas of northeastern Venezuela between March 1992 and July 1993. The average number of oocytes in gonads of 23-42 cm adults was 54 x 104, and lhe relative fecundity was ! 311 oocytes g-I of fish. The size of mature oocytes did not vary in different portions of the same gonad (p > 0.05) or among the adults in three populations studied. The average egg diameter for adults was 426 ¡lm (CI=4.34). Age of juveniles, colIected from the La Restinga Lagoon at about monthly intervals, from counts of growth lines on the otoliths ranged from 50 to 240 days. The relation of age (number of growth lines) to standard length follows an exponential growth curve. The growth ofjuveniles varied seasonally and was greatest during the rain y season C April to August), when temperatures were highes!. The time of spawning has probably been adapted so Ihat peak recruitment into the lagoons occurs just prior lo the rainy season when conditions for growth are most favorable. Universidad de Costa Rica 2000-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/18755 10.15517/rbt.v48i2-3.18755 Revista de Biología Tropical; Vol. 48 No. 2-3 (2000): Volume 48 – Regular number 2-3 – June 2000; 389–398 Revista de Biología Tropical; Vol. 48 Núm. 2-3 (2000): Volumen 48 – Numero regular 2-3 – Junio 2000; 389–398 Revista Biología Tropical; Vol. 48 N.º 2-3 (2000): Volume 48 – Regular number 2-3 – June 2000; 389–398 2215-2075 0034-7744 10.15517/rbt.v48i2-3 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/18755/18904 Copyright (c) 2000 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution	Universidad de Costa Rica
collection	Revista de Biología Tropical
language	eng
format	Online
author	Marin E, Baumar J Dodson, Julián J
spellingShingle	Marin E, Baumar J Dodson, Julián J Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela
author_facet	Marin E, Baumar J Dodson, Julián J
author_sort	Marin E, Baumar J
description	We studied fecundity and growth in populations of the silver mullet, Mugilcurema, in coastal areas of northeastern Venezuela between March 1992 and July 1993. The average number of oocytes in gonads of 23-42 cm adults was 54 x 104, and lhe relative fecundity was ! 311 oocytes g-I of fish. The size of mature oocytes did not vary in different portions of the same gonad (p > 0.05) or among the adults in three populations studied. The average egg diameter for adults was 426 ¡lm (CI=4.34). Age of juveniles, colIected from the La Restinga Lagoon at about monthly intervals, from counts of growth lines on the otoliths ranged from 50 to 240 days. The relation of age (number of growth lines) to standard length follows an exponential growth curve. The growth ofjuveniles varied seasonally and was greatest during the rain y season C April to August), when temperatures were highes!. The time of spawning has probably been adapted so Ihat peak recruitment into the lagoons occurs just prior lo the rainy season when conditions for growth are most favorable.
title	Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela
title_short	Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela
title_full	Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela
title_fullStr	Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela
title_full_unstemmed	Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela
title_sort	age, growth and fecundity of the silver mullet, mugil curema (pisces: mugilidae), in coastal arcas of northeastern venezuela
title_alt	Age, growth and fecundity oC tbe silver mullet, Mugil curema (Pisces: Mugilidae), in coastal areas Northeastern Venezuela
publisher	Universidad de Costa Rica
publishDate	2000
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/18755
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Age, growth and fecundity of the silver mullet, Mugil curema (Pisces: Mugilidae), in coastal arcas of Northeastern Venezuela

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