Reproductive cycle by histological characterization of the ovary in the butterfly goodeid Ameca splendens from the upper Río Ameca Basin, Mexico

Esperanza Ortiz-Ordóñez, E. Uría Galicia, E. López-López, J. P. Maya, A. L. Carvajal Hernández

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

The ovarian cycle was studied in Ameca splendens, a viviparous fish native to western Mexico. Two wild populations living in environments with differential conditions (a small pond adjacent to a reservoir and a spring) were examined to determine whether the conditions these populations are exposed to can elicit differences in the reproductive cycle. The two sites differ from each other with respect to several environmental factors: the spring has clear, oxygen-rich water while the pond has higher levels of conductivity, hardness and inorganic nitrogen. Six stages of gonadal maturation were identified in A. splendens, based on histological and macroscopic characteristics of the gonad. The relative frequency of gonadic stages at both sites showed two reproductive peaks during the year: from March to May and from September to November. Histologically, ovaries exhibit an asynchronous development in both populations, revealing the existence of a multiple reproductive cycle. Relative mean condition shows organisms are in peak condition (K > 1) at age class 1 + as they recruit to reproduction; K was < 1 following the onset of multiple reproduction. The Fulton condition factor shows that the mean condition is slightly higher in the spring population. The relative frequency of gonadal maturation differed between the study sites and is indicative of the plasticity of A. splendens in facing different conditions within the environments it inhabits. © 2007 Blackwell Verlag, Berlin.
Original languageAmerican English
Pages (from-to)40-45
Number of pages35
JournalJournal of Applied Ichthyology
DOIs
StatePublished - 1 Feb 2007

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reproductive cycle
butterfly
butterflies
maturation
pond
Mexico
basins
condition factor
inorganic nitrogen
wild population
age class
basin
hardness
plasticity
environmental factor
conductivity
oxygen
fish
age structure
gonads

Cite this

@article{1943f81b94714543bde5d925f4c62c94,
title = "Reproductive cycle by histological characterization of the ovary in the butterfly goodeid Ameca splendens from the upper R{\'i}o Ameca Basin, Mexico",
abstract = "The ovarian cycle was studied in Ameca splendens, a viviparous fish native to western Mexico. Two wild populations living in environments with differential conditions (a small pond adjacent to a reservoir and a spring) were examined to determine whether the conditions these populations are exposed to can elicit differences in the reproductive cycle. The two sites differ from each other with respect to several environmental factors: the spring has clear, oxygen-rich water while the pond has higher levels of conductivity, hardness and inorganic nitrogen. Six stages of gonadal maturation were identified in A. splendens, based on histological and macroscopic characteristics of the gonad. The relative frequency of gonadic stages at both sites showed two reproductive peaks during the year: from March to May and from September to November. Histologically, ovaries exhibit an asynchronous development in both populations, revealing the existence of a multiple reproductive cycle. Relative mean condition shows organisms are in peak condition (K > 1) at age class 1 + as they recruit to reproduction; K was < 1 following the onset of multiple reproduction. The Fulton condition factor shows that the mean condition is slightly higher in the spring population. The relative frequency of gonadal maturation differed between the study sites and is indicative of the plasticity of A. splendens in facing different conditions within the environments it inhabits. {\circledC} 2007 Blackwell Verlag, Berlin.",
author = "Esperanza Ortiz-Ord{\'o}{\~n}ez and {Ur{\'i}a Galicia}, E. and E. L{\'o}pez-L{\'o}pez and Maya, {J. P.} and {Carvajal Hern{\'a}ndez}, {A. L.}",
year = "2007",
month = "2",
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doi = "10.1111/j.1439-0426.2006.00790.x",
language = "American English",
pages = "40--45",
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Reproductive cycle by histological characterization of the ovary in the butterfly goodeid Ameca splendens from the upper Río Ameca Basin, Mexico. / Ortiz-Ordóñez, Esperanza; Uría Galicia, E.; López-López, E.; Maya, J. P.; Carvajal Hernández, A. L.

In: Journal of Applied Ichthyology, 01.02.2007, p. 40-45.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

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AU - Ortiz-Ordóñez, Esperanza

AU - Uría Galicia, E.

AU - López-López, E.

AU - Maya, J. P.

AU - Carvajal Hernández, A. L.

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