Reproduction of the fish Poeciliopsis gracilis (Cyprinodontiformes: Poeciliidae) in Coatetelco, a tropical shallow lake in Mexico. 2008

José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
Laboratorio de Limnología, F.E.S. Zaragoza, U.N.A.M. Batalla 5 de Mayo esq. Fuerte de Loreto, Ejército de Oriente, C.P. 09230 Iztapalapa, DF México. lgomez@servidor.unam.mx

A reproductive analysis of 1225 specimens of Poeciliopsis gracilis obtained through monthly samples from Coatetelco, a tropical shallow lake in Central Mexico, was made. There was an evident sexual dimorphism, including a difference in body size at the onset of reproduction. Sex ratio deviated significantly from unity. Monthly variations in gonadosomatic (GSI), hepatosomatic (HSI) indexes and ovarian development stages showed that the spawning season was from July to October, coinciding with the rainy season and phytoplankton biomass increase. The largest sizes were 50 mm for females and 43 mm for males.

UI MeSH Term Description Entries
D008297 Male Males
D008800 Mexico A country in NORTH AMERICA, bordering the Caribbean Sea and the Gulf of Mexico, between BELIZE and the UNITED STATES, and bordering the North Pacific Ocean, between Guatemala and the UNITED STATES.
D011036 Poecilia A genus of livebearing cyprinodont fish comprising the guppy and molly. Some species are virtually all female and depend on sperm from other species to stimulate egg development. Poecilia is used in carcinogenicity studies as well as neurologic and physiologic research. Guppy,Lebistes,Molly,Guppies,Mollies,Poecilias
D012098 Reproduction The total process by which organisms produce offspring. (Stedman, 25th ed) Human Reproductive Index,Human Reproductive Indexes,Reproductive Period,Human Reproductive Indices,Index, Human Reproductive,Indexes, Human Reproductive,Indices, Human Reproductive,Period, Reproductive,Periods, Reproductive,Reproductive Index, Human,Reproductive Indices, Human,Reproductive Periods
D004777 Environment The external elements and conditions which surround, influence, and affect the life and development of an organism or population. Environmental Impact,Environmental Impacts,Impact, Environmental,Impacts, Environmental,Environments
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012621 Seasons Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Seasonal Variation,Season,Seasonal Variations,Variation, Seasonal,Variations, Seasonal
D012727 Sex Characteristics Those characteristics that distinguish one SEX from the other. The primary sex characteristics are the OVARIES and TESTES and their related hormones. Secondary sex characteristics are those which are masculine or feminine but not directly related to reproduction. Gender Characteristics,Gender Differences,Gender Dimorphism,Sex Differences,Sex Dimorphism,Sexual Dichromatism,Sexual Dimorphism,Characteristic, Gender,Characteristic, Sex,Dichromatism, Sexual,Dichromatisms, Sexual,Difference, Sex,Dimorphism, Gender,Dimorphism, Sex,Dimorphism, Sexual,Gender Characteristic,Gender Difference,Gender Dimorphisms,Sex Characteristic,Sex Difference,Sex Dimorphisms,Sexual Dichromatisms,Sexual Dimorphisms
D012741 Sexual Maturation Achievement of full sexual capacity in animals and in humans. Sex Maturation,Maturation, Sex,Maturation, Sexual

Related Publications

José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
January 2002, Revista de biologia tropical,
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
January 2019, ZooKeys,
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
May 2002, Evolution; international journal of organic evolution,
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
January 2022, PloS one,
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
May 2020, Zootaxa,
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
September 2013, Revista de biologia tropical,
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
June 2020, Journal of fish biology,
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
June 1974, Evolution; international journal of organic evolution,
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
March 1972, Science (New York, N.Y.),
José Luis Gómez-Márquez, and Bertha Peñia-Mendoza, and Isaías H Salgado-Ugarte, and Abby K Sánchez-Herrera, and Leonardo Sastré-Baez
April 2018, BMC evolutionary biology,
Copied contents to your clipboard!