This work was edited by Thomas B. Thorson and published by the School of Life Sciences, University of Nebraska-Lincoln, in 1976. The volume is an outgrowth of a symposium held June 26 & 27, 1973, during the annual meeting of the American Society of Ichthyologists and Herpetologists in San Jose, Costa Rica.

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1976

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Index of Scientific Names

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Investigations of the Ichthyofauna of Nicaraguan Lakes: Frontmatter

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Peces de la cuenca de los grandes lagos de Nicaragua, Ignacio Astorqui

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Competition between Color Morphs of the Polychromatic Midas Cichlid Cichlasoma citrinellum, George W. Barlow

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The Midas Cichlid In Nicaragua, George W. Barlow

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Chemical Analyses of some Crater Lakes in Relation to Adjacent Lake Nicaragua, George W. Barlow, Jeffrey R. Baylis, and Dale Roberts

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The Red Devil-Midas-Arrow Cichlid Species Complex in Nicaragua, George W. Barlow and John W. Munsey

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The Behavior and Ecology of Herotilapia multispinosa (Teleostei, Cichlidae), Jeffrey R. Baylis

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Length/Weight Frequencies for Five Species of Fish in Lake Nicaragua, Richard J. Beatty and Kurt W. Koenig

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Carcharhinus Nicaraguensis, a Synonym of the Bull Shark, C. Leucas, Henry B. Bigelow and William C. Schroeder

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Hemoglobin Stability in Bull Sharks, Jack D. Burke

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Geographic Distribution of the San Juan Ichthyofauna of Central America with Remarks on its Origin and Ecology, William A. Bussing

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Limnology of the Great Lakes of Nicaragua, Gerald A. Cole

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Serum Protein Variation in the Bull Shark, Carcharhinus Leucas Müller and Henle, 1841, C. Michael Cowan

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Lake Nicaragua Fishery Resources, William D. Davies

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Studio istochimico comparato della ghiandoia digitiforme rettale di selaci marini e di acqua dolce, Giuseppe Gerzeli and Gian Franco de Stefano

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The Rectal Gland in Relation to the Osmoregulatory Mechanisms of Marine and Freshwater Elasmobranchs, Giuseppe Gerzeli, Gian Franco de Stefano, Lorenzo Bolognani, Kurt W. Koenig, Maria Victoria Gervaso, and Maria Fausta Omodeo-Salé

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Aspetti della ghiandola rettale e della regolazione osmoticain Selaci marini e d' acqua dolce, Giuseppe Gerzeli, Maria Victoria Gervaso, and Gian Francis de Stefano

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Geography of Lake Nicaragua, Jaime Incer

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Informe Sobre Los Resultados Del Programa de Investigacion de los Recursos Pesqueros Del Lago de Nicaragua, Instituto de Fomento Nacional

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Reproduction of the Bull Shark, Carcharhinus leu cas , in the Lake Nicaragua-Rio San Juan System, Norman H. Jenson

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Species Diversity and Distribution of Fish in Lake Nicaragua, Kurt W. Koenig, Richard J. Beatty, and Sergio Martinez C.

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An Investigation into the Use of Artificial Habitats as a Means of Increasing the Fishery Productivity of the Great Lakes Complex of Nicaragua, Terrance M. Lim, Kenneth R. McKaye, and Douglas J. Weiland

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Variación, coloración y estado sistemático del pez centroamericano Cichlasoma nicaraguense (familia Cichlidae), Myrna I. López

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Relative Abundance and Distribution of the Mojarra (Cichlasoma citrinellum) in Lake Nicaragua, Sergio Martínez C

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Competition Between Color Morphs of the Midas Cichlid, Cichlasoma citrinellum, in Lake Jiloá, Nicaragua, Kenneth R. McKaye and George W. Barlow

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En el Gran Lago, Medicina y Cultura

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Geographical Distribution of Central American Freshwater Fishes, Robert Rush Miller

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Derivation of the Freshwater Fish Fauna of Central America, George S. Myers

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Parental behavior and some histological features of scales in Cichlasoma citrinellum (pisces, Cichlidae), David L. G. Noakes

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Cross-fostering and Parent-offspring Responses in Cichlasoma citrinellum (Pisces, Cichlidae), David L. G. Noakes and George W. Barlow

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Ontogeny of Parent-Contacting in Young Cichlasoma Citrinellum (Pisces, Cichlidae), David L. G. Noakes and George W. Barlow

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Rectal Glands of Marine and Fresh-Water Sharks: Comparative Histology, Mikio Oguri

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Some Remarks on the Fecundity of Tilapia (T. mossambica Peters) and its Introduction into Middle Central America (Nicaragua) together with a first Contribution towards the Limnology of Nicaragua, Dietmar Riedel

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The origin of the lakes in the Nicaraguan fault and of the Middle American isthmus in the light of studies of the fish fauna, Dietmar Riedel

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Bottom Sediments of Lake Nicaragua and Lake Managua, Western Nicaragua, Frederick M. Swain

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Movement of Bull Sharks, Carcharhinus Leucas, Between Carribean Sea and Lake Nicaragua Demonstrated by Tagging, Thomas B. Thorson

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Observations on the Reproduction of the Sawfish, Pristis perotteti, in Lake Nicaragua, with Recommendations for its Conservation, Thomas B. Thorson

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Partitioning of Body Fluids in the Lake Nicaragua Shark and Three Marine Sharks, Thomas B. Thorson

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Sexual Dimorphism in Number of Rostral Teeth of the Sawfish, Pristis perotteti Miiller and Henle, 1841, Thomas B. Thorson

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The Status of the Lake Nicaragua Shark: An Updated Appraisal, Thomas B. Thorson

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Body Fluid Solutes of Juveniles and Adults of the Euryhaline Bull Shark Carcharhinus Leucas from Freshwater and Saline Environments, Thomas B. Thorson, C. Michael Cowan, and Donald E. Watson

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Comparison of Some Parameters of Serum and Uterine Fluid of Pregnant, Viviparous Sharks (Carcharhinus Leucas) and Serum of Their Near-Term Young, Thomas B. Thorson and Jeffrey W. Gerst

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The Status of the Freshwater Shark of Lake Nicaragua, Thomas B. Thorson, Donald E. Watson, and C. Michael Cowan

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An Investigation of the Feeding Habits of the Bull Shark, Carcharhinus leucas, in the Lake Nicaragua-Rio San Juan System, Robert E. Tuma

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Calcium and Other Ions in Blood and Skeleton of Nicaraguan Fresh-Water Shark, Marshall R. Urist

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Ichthyology of the Lakes of Nicaragua: Historical Perspective, Jaime Villa

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La "Pepesca Gaspar", otro pez desconocido del Gran Lago, Jaime Villa

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Some Speculations About "The Great Nicaraguan Lake", Jaime Villa

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Systematic Status of the Cichlid Fishes Cichlasoma dorsatum, C. granadense and C. nigritum Meek, Jaime Villa

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Una teoría sobre el origen de los peces de Xiloà, Jaime Villa

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Presence of the Cichlid Fish Cichlasoma Managuense Gunther in Lake Xiloá, Nicaragua, Jime Villa

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Digenea of Fishes from Lake Nicaragua, Donald E. Watson

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Helminths from Elasmobranchs in Central American Fresh Waters, Donald E. Watson and Thomas B. Thorson

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Pigments of a Color Polymorphism in a Cichlid Fish, Robert Webber, George W. Barlow, and Alan H. Brush