Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria

The fish Sarotherodon galilaeus was collected in Opa reservoir, Obafemi Awolowo University, Helfe, Nigeria. Sampling began in January, 1992 and extended until March, 1994. The fishing methods empJoyed for collecting the 853 specimens were gillnetting and castnetting. Sex ratio was approximately J: l...

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Autores principales:	Fawole, O O, Arawomo, G A
Formato:	Online
Idioma:	eng
Publicado:	Universidad de Costa Rica 2000
Acceso en línea:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/18257

id	RBT18257
record_format	ojs
spelling	RBT182572022-06-13T19:47:42Z Fecundity of Sarotherodon galilaeus (Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria Fawole, O O Arawomo, G A reproductive biology sarotherodon galilaeus fecundity gonado-somatic index biparental The fish Sarotherodon galilaeus was collected in Opa reservoir, Obafemi Awolowo University, Helfe, Nigeria. Sampling began in January, 1992 and extended until March, 1994. The fishing methods empJoyed for collecting the 853 specimens were gillnetting and castnetting. Sex ratio was approximately J: l (maJe: female). Length at maturity was 12.5 cm (males) and 11.7 cm (fe males). The fecundity was 1 048 ± 785 (604- 2 173, n = 117) with an egg diameter of 2.49± 1.81 (1.0 - 4.5, n = 117) mm. The gonado-somatic index was 033 ± 0.21 (0.09 - 1.34, n = 275) (males) and 1.88 ± 1.01 (0.33 - 6.19, n = 282) (femates). The species breeds year-round (mature specimens occurred in samples collected throughout the 27-month study period). Thisfish is a biparental mouth booder The fish Sarotherodon galilaeus was collected in Opa reservoir, Obafemi Awolowo University, Helfe, Nigeria. Sampling began in January, 1992 and extended until March, 1994. The fishing methods empJoyed for collecting the 853 specimens were gillnetting and castnetting. Sex ratio was approximately J: l (maJe: female). Length at maturity was 12.5 cm (males) and 11.7 cm (fe males). The fecundity was 1 048 ± 785 (604- 2 173, n = 117) with an egg diameter of 2.49± 1.81 (1.0 - 4.5, n = 117) mm. The gonado-somatic index was 033 ± 0.21 (0.09 - 1.34, n = 275) (males) and 1.88 ± 1.01 (0.33 - 6.19, n = 282) (femates). The species breeds year-round (mature specimens occurred in samples collected throughout the 27-month study period). Thisfish is a biparental mouth booder Universidad de Costa Rica 2000-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/18257 10.15517/rbt.v48i1.18257 Revista de Biología Tropical; Vol. 48 No. 1 (2000): Volume 48 – Regular number 1 – March 2000; 201–204 Revista de Biología Tropical; Vol. 48 Núm. 1 (2000): Volumen 48 – Número regular 1 – Marzo 2000; 201–204 Revista Biología Tropical; Vol. 48 N.º 1 (2000): Volume 48 – Regular number 1 – March 2000; 201–204 2215-2075 0034-7744 10.15517/rbt.v48i1 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/18257/18443 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	Fawole, O O Arawomo, G A
spellingShingle	Fawole, O O Arawomo, G A Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria
author_facet	Fawole, O O Arawomo, G A
author_sort	Fawole, O O
description	The fish Sarotherodon galilaeus was collected in Opa reservoir, Obafemi Awolowo University, Helfe, Nigeria. Sampling began in January, 1992 and extended until March, 1994. The fishing methods empJoyed for collecting the 853 specimens were gillnetting and castnetting. Sex ratio was approximately J: l (maJe: female). Length at maturity was 12.5 cm (males) and 11.7 cm (fe males). The fecundity was 1 048 ± 785 (604- 2 173, n = 117) with an egg diameter of 2.49± 1.81 (1.0 - 4.5, n = 117) mm. The gonado-somatic index was 033 ± 0.21 (0.09 - 1.34, n = 275) (males) and 1.88 ± 1.01 (0.33 - 6.19, n = 282) (femates). The species breeds year-round (mature specimens occurred in samples collected throughout the 27-month study period). Thisfish is a biparental mouth booder
title	Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria
title_short	Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria
title_full	Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria
title_fullStr	Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria
title_full_unstemmed	Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria
title_sort	fecundity of sarotherodon galilaeus(pisces: cichlidae) in the opa reservoir, ilenife , nigeria
title_alt	Fecundity of Sarotherodon galilaeus (Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria
publisher	Universidad de Costa Rica
publishDate	2000
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/18257
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Fecundity of Sarotherodon galilaeus(Pisces: Cichlidae) in the Opa reservoir, IlenIfe , Nigeria

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