No.16 Pseudoxiphophorus Anzuetoi
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Strong Reproductive Skew Among Males in the Multiply Mated Swordtail Xiphophorus Multilineatus (Teleostei)
Journal of Heredity 2005:96(4):346–355 ª The American Genetic Association. 2005. All rights reserved. doi:10.1093/jhered/esi042 For Permissions, please email: [email protected]. Advance Access publication March 2, 2005 Strong Reproductive Skew Among Males in the Multiply Mated Swordtail Xiphophorus multilineatus (Teleostei) J. LUO,M.SANETRA,M.SCHARTL, AND A. MEYER From Fachbereich Biologie, Universita¨t Konstanz, 78457 Konstanz, Germany (Luo, Sanetra, and Meyer); and Physiologische Chemie I, Biozentrum der Universita¨t, Am Hubland, 97074 Wu¨rzburg, Germany (Schartl). Address correspondence to Axel Meyer, Fachbereich Biologie, Universita¨t Konstanz, Fach M617, Universita¨tsstrasse 10, 78457 Konstanz, Germany, or e-mail: [email protected]. Abstract Male swordtails in the genus Xiphophorus display a conspicuous ventral elongation of the caudal fin, the sword, which arose through sexual selection due to female preference. Females mate regularly and are able to store sperm for at least 6 months. If multiple mating is frequent, this would raise the intriguing question about the role of female choice and male-male competition in shaping the mating system of these fishes. Size-dependent alternate mating strategies occur in Xiphophorus; one such strategy is courtship with a sigmoid display by large dominant males, while the other is gonopodial thrusting, in which small subordinate males sneak copulations. Using microsatellite markers, we observed a frequency of multiple paternity in wild-caught Xiphophorus multilineatus in 28% of families analyzed, but the actual frequency of multiple mating suggested by the correction factor PrDM was 33%. The number of fathers contributing genetically to the brood ranged from one to three. -
Reproducción Y Crecimiento De Heterandria Bimaculata
Rev. Biol. Trop., 47(3): 581-592, 1999 www.ucr.ac.cr WWW.ots.ac.cr www.ots.duke.edu Reproducción y crecimiento de Heterandria bimaculata . (Cyprinodontiformes:PoeciUidae) en la LagUIia " EIRo(}eo"; �orelos,�é�co José Luis Gómez-Márquez, José Luis Guzmán-Santiago y Alberto Olvera-Soto Laboratorio de Limnología, Facultad de Estudios Superiores Zaragoza, Campus ll, UNAM. Batalla del 5 de Mayo esq. Fuerte de Loreto, Col. Ejército de Oriente. C.P. 09230, México, D.F. Fax 7 73 01 51, correo electrónico: [email protected] Recibido 11-VIII-1998. Corregido 11-1-1999. Aceptado 15-1-1999. Abstract: We studied reproduction and growth of Heterandria bimaculata in "El Rodeo" lake Morelos, Mexico, from December 1986 through December 1987. A total of 1 452 specimens were obtained (monthly samples). Females represented 60.12 %, males 34.98 % and the young 4.89 % of the population. Overall sex ratio was 1.7: 1 in favor of females (X2 p<0.05). The size at frrst reproduction for females was 27 mm and for males 22 mm (standard lengths); multiple spawning occured throughout the reproductive cycle (from March through May and July through October) primarily, during the rainy season. There was evidence of breeding activity throughout the year. In July thegonadosomatic index mean was highest (4.7%). The numberof embryos in the ovaries were between 5 and 78, with a mean fertility of 23, the fertility was associated with standard length with deterrnina tion coefficients aboye 93.22 percent. There was a direct relationship between specimen length and weight, and the asymptotic size for males was 64 mm and for females 81 mm (standard lengths). -
Proceedings of the Indiana Academy of Science 1 1 8(2): 143—1 86
2009. Proceedings of the Indiana Academy of Science 1 1 8(2): 143—1 86 THE "LOST" JORDAN AND HAY FISH COLLECTION AT BUTLER UNIVERSITY Carter R. Gilbert: Florida Museum of Natural History, University of Florida, Gainesville, Florida 32611 USA ABSTRACT. A large fish collection, preserved in ethanol and assembled by Drs. David S. Jordan and Oliver P. Hay between 1875 and 1892, had been stored for over a century in the biology building at Butler University. The collection was of historical importance since it contained some of the earliest fish material ever recorded from the states of South Carolina, Georgia, Mississippi and Kansas, and also included types of many new species collected during the course of this work. In addition to material collected by Jordan and Hay, the collection also included specimens received by Butler University during the early 1880s from the Smithsonian Institution, in exchange for material (including many types) sent to that institution. Many ichthyologists had assumed that Jordan, upon his departure from Butler in 1879. had taken the collection. essentially intact, to Indiana University, where soon thereafter (in July 1883) it was destroyed by fire. The present study confirms that most of the collection was probably transferred to Indiana, but that significant parts of it remained at Butler. The most important results of this study are: a) analysis of the size and content of the existing Butler fish collection; b) discovery of four specimens of Micropterus coosae in the Saluda River collection, since the species had long been thought to have been introduced into that river; and c) the conclusion that none of Jordan's 1878 southeastern collections apparently remain and were probably taken intact to Indiana University, where they were lost in the 1883 fire. -
The Origin and Biogeographic Diversification of Fishes in the Family Poeciliidae
RESEARCH ARTICLE The origin and biogeographic diversification of fishes in the family Poeciliidae David N. Reznick1*, Andrew I. Furness2, Robert W. Meredith3, Mark S. Springer1 1 Department of Biology, University of California Riverside, Riverside, California, United States of America, 2 Department of Ecology and Evolutionary Biology, University of California Irvine, Irvine, California, United States of America, 3 Department of Biology and Molecular Biology, Montclair State University, Montclair, New Jersey, United States of America * [email protected] a1111111111 a1111111111 a1111111111 Abstract a1111111111 a1111111111 The fish subfamily Poeciliinae (sensu Parenti, 1981) is widely distributed across the West- ern Hemisphere and a dominant component of the fish communities of Central America. Poeciliids have figured prominently in previous studies on the roles of dispersal and vicari- ance in shaping current geographic distributions. Most recently, Hrbek et al. combined a OPEN ACCESS DNA-based phylogeny of the family with geological models to provide a biogeographic per- spective that emphasized the role of both vicariance and dispersal. Here we expand on that Citation: Reznick DN, Furness AI, Meredith RW, Springer MS (2017) The origin and biogeographic effort with a database enlarged in the quantity of sequence represented per species, in the diversification of fishes in the family Poeciliidae. number of species included, and in an enlarged and more balanced representation of the PLoS ONE 12(3): e0172546. doi:10.1371/journal. order Cyprinodontiformes. We combine a robust timetree based upon multiple fossil calibra- pone.0172546 tions with enhanced biogeographic analyses that include ancestral area reconstructions to Editor: Axel Meyer, University of Konstanz, provide a detailed biogeographic history of this clade. -
Trophic Strategies of the Invasive Twospot Livebearer (Pseudoxiphophorus Bimaculatus, Teleostei: Poeciliidae) in a Gradient of Environmental Quality in Central Mexico
Neotropical Ichthyology Original article https://doi.org/10.1590/1982-0224-2019-0080 Trophic strategies of the invasive Twospot livebearer (Pseudoxiphophorus bimaculatus, Teleostei: Poeciliidae) in a gradient of environmental quality in central Mexico Omar Carbajal-Becerra1*, Karla Judith Olvera-Rodríguez1*, Gabriel Correspondence: Mariscal de Souza1, Omar Yair Durán-Rodríguez1, Arely Ramírez- Juan Pablo Ramírez-Herrejón 2 3 [email protected] García and Juan Pablo Ramírez-Herrejón Pseudoxiphophorus bimaculatus is an invasive species widely spread throughout freshwater ecosystems in central Mexico, for that reason we described its trophic strategy into a gradient of environmental quality. We sampled individuals of P. bimaculatus at eight sites located in the Lerma-Chapala and Pánuco River Basins during dry season. These basins have been impacted by industrialization and urbanization processes, but are considered as water reserves in México. To evaluate the environmental quality of the river, we applied the Visual-based Habitat Assessment, the Index of Biological Integrity and the Family-level Biotic Index. We assessed the trophic guild, the diet width, the omnivory level, and the diet selectivity. We also explored the relation of trophic strategies with the habitat condition. We captured a total of 202 individuals of P. bimaculatus from 10 to 67 mm of SL, finding a total of 24 food items. The diet of P. bimaculatus was composed of terrestrial, aquatic insects and bony fish. Pseudoxiphophorus bimaculatus in some sites can feed on different trophic levels, in other it is a specialist and secondary consumer. We found that P. bimaculatus changes its diet according the alterations in the habitat structure, water quality, and biotic integrity. -
Checklist of the Inland Fishes of Louisiana
Southeastern Fishes Council Proceedings Volume 1 Number 61 2021 Article 3 March 2021 Checklist of the Inland Fishes of Louisiana Michael H. Doosey University of New Orelans, [email protected] Henry L. Bart Jr. Tulane University, [email protected] Kyle R. Piller Southeastern Louisiana Univeristy, [email protected] Follow this and additional works at: https://trace.tennessee.edu/sfcproceedings Part of the Aquaculture and Fisheries Commons, and the Biodiversity Commons Recommended Citation Doosey, Michael H.; Bart, Henry L. Jr.; and Piller, Kyle R. (2021) "Checklist of the Inland Fishes of Louisiana," Southeastern Fishes Council Proceedings: No. 61. Available at: https://trace.tennessee.edu/sfcproceedings/vol1/iss61/3 This Original Research Article is brought to you for free and open access by Volunteer, Open Access, Library Journals (VOL Journals), published in partnership with The University of Tennessee (UT) University Libraries. This article has been accepted for inclusion in Southeastern Fishes Council Proceedings by an authorized editor. For more information, please visit https://trace.tennessee.edu/sfcproceedings. Checklist of the Inland Fishes of Louisiana Abstract Since the publication of Freshwater Fishes of Louisiana (Douglas, 1974) and a revised checklist (Douglas and Jordan, 2002), much has changed regarding knowledge of inland fishes in the state. An updated reference on Louisiana’s inland and coastal fishes is long overdue. Inland waters of Louisiana are home to at least 224 species (165 primarily freshwater, 28 primarily marine, and 31 euryhaline or diadromous) in 45 families. This checklist is based on a compilation of fish collections records in Louisiana from 19 data providers in the Fishnet2 network (www.fishnet2.net). -
Reproductive Biology of Poecilia Sphenops Valenciennes, 1846 (Cyprinidontiformes: Poeciliidae) at the Emiliano Zapata Reservoir in Morelos, Mexico
Neotropical Ichthyology, 14(2): e140127, 2016 Journal homepage: www.scielo.br/ni DOI: 10.1590/1982-0224-20140127 Published online: 20 June 2016 (ISSN 1982-0224) Reproductive biology of Poecilia sphenops Valenciennes, 1846 (Cyprinidontiformes: Poeciliidae) at the Emiliano Zapata Reservoir in Morelos, Mexico José L. Gómez-Márquez, Bertha Peña-Mendoza and José L. Guzmán-Santiago1 Poecilia sphenops is a native species recently recorded in the Balsas basin and the Amacuzac River in Morelos (Mexico), in which it is abundant and widely distributed. This study analyzed some aspects of the reproductive biology of Poecilia sphenops from the Emiliano Zapata Reservoir, in Central Mexico. Specimens were collected using a 20 m-long seine with a 5 mm mesh size, from January to December 2006. A total of 581 specimens were collected: 407 females (70.0%), 83 males (14.3%) and 91 individuals with no differentiated sex (15.7%). Fish ranged from 20 to 96 mm in total length and 0.01 to 13.07 g in body weight. The female to male sex ratio (4.9:1) deviated significantly from the unity (χ²= 214.2, p<0.05). Monthly variations in gonadosomatic (GSI) and hepatosomatic (HSI) indexes and ovarian development stages showed that P. sphenops spawning season occurred between July and October, concurring with the rainy season. Another reproduction peak was registered in February. The largest length registered for males and females was 96 mm and 83 mm, respectively. Poecilia sphenops es una especie nativa registrada recientemente en la cuenca del Balsas y el río Amacuzac en Morelos (México), en el cual es abundante y ampliamente distribuida. -
Pre- and Post-Copulatory Sexual Selection in the Least Killifish, Heterandria Formosa
Pre- and post-copulatory sexual selection in the least killifish, Heterandria formosa Outi Ala-Honkola Department of Biological and Environmental Sciences Faculty of Biosciences University of Helsinki Finland Academic dissertation To be presented for public examination with the permission of the Faculty of Biosciences of the University of Helsinki in the Auditorium 2041 of Biocenter 2, Viikinkaari 5, on October 30th at 12 o’clock noon. Helsinki 2009 Supervisor: Prof. Kai Lindström, Åbo Akademi University, Finland Pre-examiners: Prof. Arja Kaitala, University of Oulu, Finland Dr. Jonathan Evans, University of Western Australia, Australia Opponent: Dr. Tommaso Pizzari, University of Oxford, United Kingdom Custos: Prof. Liselotte Sundström, University of Helsinki, Finland Author’s address: Outi Ala-Honkola Department of Biological and Environmental Sciences P.O.Box 65 (Viikinkaari 1) FI-00014 University of Helsinki Finland e-mail: [email protected] ISBN 978-952-92-6211-3 (paperback) ISBN 978-952-10-5785-4 (pdf) http://ethesis.helsinki.fi Yliopistopaino Helsinki 2009 Typically, the scientific paper or monograph presents an immaculate appearance, which reproduces little or nothing of the intuitive leaps, false starts, mistakes, loose ends, and happy accidents that actually cluttered up the inquiry. (Merton, 1968) Contents Summary .............................................................................................................. 7 1. Introduction ................................................................................................. -
Life History Variation Along a Salinity Gradient in Coastal Marshes
Vol. 8: 15–28, 2009 AQUATIC BIOLOGY Published online December 29 doi: 10.3354/ab00203 Aquat Biol OPENPEN ACCESSCCESS Life history variation along a salinity gradient in coastal marshes Shannon B. Martin1, 2,*, Alan T. Hitch1, 3, Kevin M. Purcell1, 4, Paul L. Klerks1, Paul L. Leberg1 1Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana 70504, USA 2Present address: Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, Apalachicola Field Laboratory, Eastpoint, Florida 32328, USA 3Present address: School of Forestry and Wildlife Sciences, Auburn University, Auburn, Alabama 36849, USA 4Present address: Department of Biological Sciences, North Dakota State University, Fargo, North Dakota 58105, USA ABSTRACT: Coastal habitats are susceptible to changes in the environment associated with alter- ations in salinity. A field study was conducted on natural populations of the sailfin molly Poecilia latipinna, the western mosquitofish Gambusia affinis and the least killifish Heterandria formosa col- lected from coastal marsh sites along a salinity gradient, to investigate the influence of salinity on body condition and reproductive life history traits. In brackish marsh sites male P. latipinna had the best body conditions, while females had similar body conditions across all 3 marsh types. Female P. latipinna had greater reproductive allotment and fecundity in brackish marshes, where this fish was most abundant. Specimens of G. affinis collected from fresh marsh sites had less favorable body condition, and females had lower reproductive allotment and fecundity than those collected from higher salinities. While G. affinis was more abundant in freshwater marshes than in higher salinity marshes, this higher abundance did not correspond with a better body condition or higher reproduc- tive effort, suggesting that G. -
Fishes of Savannas Preserve State Park
FISHES OF SAVANNAS PRESERVE STATE PARK by Kristy McKee A Thesis Submitted to the Faculty of The Wilkes Honors College in Partial Fulfillment of the Requirements for the Degree of Bachelor of Arts in Liberal Arts and Sciences with a Concentration in Marine Biology Wilkes Honors College of Florida Atlantic University Jupiter, Florida August 2007 FISHES OF SAVANNAS PRESERVE STATE PARK by Kristy McKee This thesis was prepared under the direction of the candidate’s thesis advisor, Dr. Jon Moore, and has been approved by the members of her/his supervisory committee. It was submitted to the faculty of The Honors College and was accepted in partial fulfillment of the requirements for the degree of Bachelor of Arts in Liberal Arts and Sciences. SUPERVISORY COMMITTEE: ____________________________ Dr. Jon Moore ____________________________ Dr. William O’Brien ______________________________ Dean, Wilkes Honors College ____________ Date ii Acknowledgements I would like to thank Dr. Jon Moore, Andrea Gagaoudakis, Janny Peña, Kelley McKee, Scott Moore, Carrie Goethel, Diego Arenas, Tony Uhl, Leslie Jacobson, and the Port St. Lucie High School Science Club members for their assistance in the field and in the laboratory; Kasey McKee for helping making the map; Dr. Jon Moore and Dr. William O’Brien for their helpful comments and suggestions during the writing process; Hank Smith for allowing me to embark on this project, assistance with acquiring permits, past collecting information, and general information about Savannas Preserve State Park; Greg Kaufman and Savannas Preserve State Park for passing on information about exotics collected in the park; and the Florida Museum of Natural History and Harbor Branch Oceanographic Institution for preserved specimens and catalog information from past collections. -
Reproduction of the Fish Poeciliopsis Gracilis (Cyprinodontiformes: Poeciliidae) in Coatetelco, a Tropical Shallow Lake in Mexico
Reproduction of the fish Poeciliopsis gracilis (Cyprinodontiformes: Poeciliidae) in Coatetelco, a tropical shallow lake in Mexico José Luis Gómez-Márquez1, Bertha Peña-Mendoza1, Isaías H. Salgado-Ugarte2, Abby K. Sánchez-Herrera1 & Leonardo Sastré-Baez1 1. 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, México, D.F.; [email protected] 2. Laboratorio de Biometría y Biología Pesquera, F.E.S. Zaragoza, U.N.A.M. Batalla 5 de Mayo esq. Fuerte de Loreto, Ejército de Oriente, C.P. 09230 Iztapalapa, México, D.F.; [email protected] Received 19-VI-2007. Corrected 21-V-2008. Accepted 31-VII-2008. Abstract: A reproductive analysis of 1 225 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 phyto- plankton biomass increase. The largest sizes were 50 mm for females and 43 mm for males. Rev. Biol. Trop. 56 (4): 1801-1812. Epub 2008 December 12. Key words: chloropyll “a”, gonadosomatic index, hepatosomatic index, Poeciliopsis gracilis, reproduction, sex ratio, Mexico. The members of the fish order Nicaragua Lake (Miller 1966, Miller et al. Cyprinodontiformes are cosmopolitan in 2005). P. gracilis has been recently recorded to tropical and temperate latitudes. -
Conservation Status of Imperiled North American Freshwater And
FEATURE: ENDANGERED SPECIES Conservation Status of Imperiled North American Freshwater and Diadromous Fishes ABSTRACT: This is the third compilation of imperiled (i.e., endangered, threatened, vulnerable) plus extinct freshwater and diadromous fishes of North America prepared by the American Fisheries Society’s Endangered Species Committee. Since the last revision in 1989, imperilment of inland fishes has increased substantially. This list includes 700 extant taxa representing 133 genera and 36 families, a 92% increase over the 364 listed in 1989. The increase reflects the addition of distinct populations, previously non-imperiled fishes, and recently described or discovered taxa. Approximately 39% of described fish species of the continent are imperiled. There are 230 vulnerable, 190 threatened, and 280 endangered extant taxa, and 61 taxa presumed extinct or extirpated from nature. Of those that were imperiled in 1989, most (89%) are the same or worse in conservation status; only 6% have improved in status, and 5% were delisted for various reasons. Habitat degradation and nonindigenous species are the main threats to at-risk fishes, many of which are restricted to small ranges. Documenting the diversity and status of rare fishes is a critical step in identifying and implementing appropriate actions necessary for their protection and management. Howard L. Jelks, Frank McCormick, Stephen J. Walsh, Joseph S. Nelson, Noel M. Burkhead, Steven P. Platania, Salvador Contreras-Balderas, Brady A. Porter, Edmundo Díaz-Pardo, Claude B. Renaud, Dean A. Hendrickson, Juan Jacobo Schmitter-Soto, John Lyons, Eric B. Taylor, and Nicholas E. Mandrak, Melvin L. Warren, Jr. Jelks, Walsh, and Burkhead are research McCormick is a biologist with the biologists with the U.S.